Web pages on the Internet are hosted on web servers as text files. Images, sounds and other components included in the pages are also placed on the server as separate files. Files of pages and their components have their own addresses (identifiers) called unified resource locators (URL - Uniformed Resource Locator) Example URL:
The URL begins with the designation of the Internet protocol used to access the resource. In this case, HTTP is the hypertext transfer protocol. A colon and two slashes follow the name of the protocol. Next is the name of the computer (www.mail.ru). After the computer name, the full name of the file with the resource on the server follows, the characters “/” separate the names of directories that you need to visit to get to the file. In the bottom case, the page is stored on the server in the index.htm file of the chair806www.mail.ru directory
Example URL: Here is the URL of the image located on one of the portal web pages HTTP Hypertext Transfer Protocol (HyperText Transfer protocol) Access path to the file containing the Web document on the specified gif computer
The identifier of some Internet resource has the following form: What part of this identifier indicates the protocol used to transfer the resource? 1. www2. ftp3. http4. html The name of the protocol is written at the very beginning of the resource identifier. In this case, it is http /
The net.edu file located on the ru.com server is accessed using the ftp protocol. In the table, fragments of the file address are encoded with letters from A to G. Write down the sequence of these letters encoding the address of the specified file. AFtp Bru В: // G.edu Д.com ЕNet Ж / The name of the resource begins with the name of the protocol, in this case it is ftp (letter A). The protocol name must be separated from the server name by a colon and two forward slashes (B). Server name - ru.com is encoded with the letters B and D. After the server name is followed by a forward slash (G), separating it from the file name (E, D). So, the resource name ftp://ru.com/net/edu
The identifier of some Internet resource has the following form: What part of this identifier indicates the protocol used to transfer the resource?
The net.edy file located on the ru.com server is accessed using the ftp protocol. In the table, fragments of the file address are encoded with letters from A to G. Write down the sequence of these letters encoding the address of the specified file. Аftp Bru В: // G.edu Д.com Еnet Ж /
Access to the text.net file located on the server is via the http protocol. In the table, fragments of the file address are encoded with letters from A to G. Write down the sequence of these letters encoding the address of the specified file .www.ru АText B: // В / Гwww Dhttp E.net Ж.ru
Access to the file located on the ftp.net server is carried out via the http protocol. In the table, fragments of the file address are encoded with letters from A to G. Write down the sequence of these letters encoding the address of the specified file. A.txt Bhttp. H / G: // Д.net Еwww Жftp
Purpose: To build knowledge of Internet addressing.
Theoretical part.
A protocol is a set of rules for transferring information between computers on a network.
The main Internet protocol is the TCP / IP network protocol. The TCP / IP protocol is an information transfer control protocol that divides large messages into fragments. Each fragment is assigned a recipient IP address and serial number. Each computer on a TCP / IP network (connected to the Internet) has its own unique IP address.
Addresses on the Internet can be represented as a sequence of numbers, and a name built according to certain rules. Computers use digital addresses (IP-address) when sending information, while users in the Internet use mostly names (URLs).
IP address
An IP address consists of four blocks of numbers separated by periods. Each block contains numbers from 0 to 255
XXX.XXX.XXX.XXX
0-255. 0-255. 0-255. 0-255
For example: 192.168.255.2
This numbering method allows you to have more than four billion computers on the network.
Domain Name System (DNS)
Domain Name System (DNS) Domen Name System - a form of recording the address of a network computer, in which each computer's IP address is associated with a name in the usual language (Latin).
165.123.25.98 - abcde.com
A domain name is a unique name that this service provider has chosen for identification.
Domains come at different levels.
Ru- first level domain (domain zone)
tesigoh29.ru
- second level domainThe characters that appear on the left side of the address (before the @ sign) are the name of the recipient or the name of the mailbox, it often matches the user's login. Right side email addressthat follows the @ sign is the domain name of the mail server on which the mailbox is located and messages are stored.
Examples of solving problems:
1. On legionrus.com server, is book.doc fileaccessed by ftp protocol. In the table, fragments of the file address are encoded with numbers from 1 to 7.
Record the sequence of these digits encoding the address of the specified file.
Decision:In order not to be mistaken in characters and letters, first carefully write down the resulting URL in a draft. Just write down the sequence that is indicated in the task.
Then sign under each of the resulting parts your figure on the table.
protocol: // domain name (server) / file
ftp: // legionrus.com / book.doc
5 6 3 1 2 4 7
Answer: 5631247
2. Petya wrote down the IP address of the school server on a piece of paper and put it in his jacket pocket. Petina’s mother accidentally washed her jacket with a note. After washing, Petya found four scraps with fragments of an IP address in his pocket. These fragments are indicated by the letters A, B, C, and D. Restore the IP address. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
Decision:An IP address consists of four blocks of numbers separated by periods. XXX XXX XXX XXX Each number block is in the range 0-255. The main idea for solving this problem is the inadmissibility of IP numbers that exceed 255. Using the substitution method, we obtain an IP address, each block of which does not exceed 255
each computer connected to the Internet must have its own address, which is called an IP address (IP \u003d Internet protocol)
An IP address consists of four numbers separated by periods; each of these numbers is in the range 0 ... 255, for example: 192.168.85.210
internet document address (URL \u003d Uniform Resource Locator) consists of the following parts:
- protocol most often http (for web pages) or ftp (for file archives)
- signs :// separating the protocol from the rest of the address
- domain name (or IP address) of the site
- directory on the server where the file is located
- file name
What you need to know:
it is customary to separate directories with a non-backslash “\\” (as in Windows), and direct "/", as in the system Unix and its “relatives”, for example, in Linux
example address (URL)
http://www.vasya.ru/home/user/vasya/qu-qu.zip
here the protocol is marked with a yellow marker, purple - the domain name of the site, blue - the directory on the site and gray - the file name
Petya wrote down the IP address of the school server on a piece of paper and put it in his jacket pocket. Petina’s mother accidentally washed her jacket with a note. After washing, Petya found four scraps with fragments of an IP address in his pocket. These fragments are indicated by the letters A, B, C, and D. Restore the IP address. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
Decision:
the most important thing is to remember that each of the 4 numbers in the IP address must be in the range from 0 to 255
therefore, we immediately determine that fragment A is the very last, because otherwise one of the numbers turns out to be more than 255 (643 or 6420)
fragment G (number 20) can be only the first, since variants 3.1320 and 3.13320 give a number greater than 255
from fragments B and C, the first should be B, otherwise we get 3.1333.13 (1333\u003e 255)
thus, the correct answer is GBVA.
File accesshtm.net located on the servercom.edu ftp
File access ftp.net located on the server txt.orgcarried out according to the protocol http. In the table, fragments of the file address are encoded with letters from A to G. Write down the sequence of these letters encoding the address of the specified file on the Internet.
File access http.txtlocated on the server www.net carried out according to the protocol ftp
File access http.txtlocated on the server www.net carried out according to the protocol ftp. In the table, fragments of the file address are encoded with letters from A to G. Write down the sequence of these letters encoding the address of the specified file.
http://www.ftp.ru/index.html
The identifier of some Internet resource has the following form: http://www.ftp.ru/index.htmlWhat part of this identifier indicates the protocol used to transfer the resource?
1) www 2) ftp 3) http 4) html
On server info.edu file is located exam.netaccessed by protocol http. Fragments of the address of this file are encoded with the letters a, b, c ... g (see table). Record the sequence of these letters that encodes the address of the specified file on the Internet.
Petya wrote down the IP address of the school server on a piece of paper and put it in his jacket pocket. Petina’s mother accidentally washed her jacket with a note. After washing, Petya found four scraps with fragments of an IP address in his pocket. These fragments are indicated by the letters A, B, C, and D. Restore the IP address. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
Petya wrote down the IP address of the school server on a piece of paper and put it in his jacket pocket. Petina’s mother accidentally washed her jacket with a note. After washing, Petya found four scraps with fragments of an IP address in his pocket. These fragments are indicated by the letters A, B, C, and D. Restore the IP address. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
Four pieces of paper were found at the crime scene. The investigation established that fragments of the same IP address were recorded on them. Forensics designated these fragments with the letters A, B, C, and D. Restore the IP address. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
Making queries for search engines using logical expressions.
What you need to know:
truth tables of logical operations “AND”, “OR”, “NOT” (see the presentation “Logic”)
if there are no brackets in the expression, all “NOT” operations are performed first, then “AND”, then “OR”
the logical product A ∙ B ∙ C ∙ ... is equal to 1 (the expression is true) only when all factors are equal to 1 (and in other cases it is equal to 0)
the logical sum A + B + C + ... is 0 (the expression is false) only when all terms are 0 (and in other cases it is 1)
rules for converting logical expressions (slide from the presentation "Logic"):
kerguda
input of some word (let's say kerguda) in a search engine query means that the user is looking for the web pages on which this word occurs
operation AND always limits kergudu and bambarbia the search server will return smaller pages than per request kerguda, because it will search for pages that have both of these words at the same time
operation "OR" always expands search, that is, in response to a request
kergudu OR bambarbia the search server will return more pages than per request kerguda, because it will search for pages that have at least one of these words (or both at the same time)
if a phrase is entered in quotation marks in the query, the search engine searches for pages that have exactly that phrase, and not just single words; quotation marks limits search, that is, in response to a request "kergudu bambarbia" the search server will return smaller pages than per request kergudu bambarbia, because it will only search for pages on which these words stand one after another
The table shows the queries to the search server. Arrange the query numbers in increasing order of the number of pages that the search server will find for each query. To indicate the logical operation "OR" in the request, the symbol|, and for the logical operation "AND" - &.
1) printers & Scanners & Sale
2) printers & sale
3) printers | sale
4) printers | scanners | sale
Solution (option 1, reasoning using the properties of the “AND” and “OR” operations):
least of all results will produce a request with the most restrictions - the first (you need printers, scanners and sales at the same time)
in second place - the second request (at the same time printers and scanners)
further - the third request (printers or scanners)
the fourth query gives the most results (printers or scanners or sales)
thus, the correct answer is 1234.
Solution (option 2, through diagrams):
write all the answers through logical operations
show the areas defined by these expressions in a chart with three areas
Tasks for consolidation:
A) physical training
B) physical education & pull-ups & push-ups
IN) physical education & pull-ups
D) physical education | fitness
The table shows the queries to the search server. Arrange the query designations in increasing order of the number of pages that the search server will find for each query.
A) volleyball | basketball | innings
B) volleyball | basketball | feed | block
IN) volleyball | basketball
D) volleyball & Basketball & Serving
The table shows the queries to the search server. Arrange the query designations in increasing order of the number of pages that the search server will find for each query. Write down the answer as a sequence of letters.
a) America | travelers | Columbus
b) America | travelers | Columbus | opening
c) America | Columbus
d) America & Travelers & Columbus
Test "Internet, network addressing"
Goal. Test knowledge of concepts on the topic, elements of addresses of Internet resources.
Evaluation Criteria: Mark “5” - from 14 to 15 correct answers; mark “4” - from 11 to 13 correct answers; mark "3" - from 9 to 10 correct answers.Key
№ the issue
Read the instructions carefully before running the test.
Tasks is a one-time test consisting of fifteen questions: information and communication technology of work in a computer network.
The maximum time for working with the test is 20 minutes.
The criteria for the final assessment are the number of correct answers.
The maximum possible number of points is 15.
For each task in the test, there are answers from 1 to 4, of which only one is correct.
For each correct answer in the test, the participant receives 1 point, incorrect answers are not taken into account.
Questions
1. A computer in a state of constant connection to the network:
host computer (host)
provider
server
domain
2. Software that services a variety of network information services:
basic software
server program
client program
browser
3. Internet servers containing file archives allow:
Copy the necessary files;
To recieve e-mail;
Take part in teleconferences;
Hold video conferencing.
4. Web-page has an extension:
5. The most common way to search for information on the Internet involves the use of:
Help systems
Hyperlink
Search engines;
Reference books.
6. The global computer network is:
information system with hyperlinks;
many computers connected by information transmission channels and located within the same premises, buildings;
a combination of host computers and file servers;
a set of local networks and computers located over long distances and connected via communication channels into a single system.
7. Hyperlinks on a web page can provide a transition ...
to any web page of any Internet server;
to any web page within this domain;
to any web page of this server;
within the given web page;
to the top-level web server.
8. The identifier of some Internet resource has the following form: http://www.ftp.ru/index.html.What part of this identifier indicates the protocol used to transfer the resource?
1) www;
2) ftp;
3) http;
4) html.
9.Select from the list provided.IP-address:- 193.126.7.29 34.89.45 1.256.34.21 edurm .ru
10. Email (e-mail) allows you to send ...
messages only
video image;
messages and attached files;
only files.
eleven . WWW -this is...
World Wild Web;
World Wide Web;
Wild West World
We Were Well.
12. A modem transmitting information at a speed of 28800 bps can transmit two pages of text (3600 bytes) within ...
1 day
1 hour
1 second
1 minutes
13. If an address is specified email in internet [email protected], then the name of the owner of the email address ...
int.glasnet.ru;
user_name;
glasnet.ru.
EZBGDVZHA;
EBZGZHAVD;
JAVEZBGD;
EZZHAVBGD.
15. Petya wrote down the IP address of the school server on a piece of paper and put it in his jacket pocket. Petina’s mother accidentally washed her jacket with a note. After washing, Petya found four scraps with fragments of an IP address in his pocket. These fragments are indicated by the letters A, B, C, and D. Restore the IP address. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
VABG;
A B C D;
GABB;
1 option
1. The modem provides:
2. Teleconference is:
3. Mailbox email subscriber is:
a) the area on the hard drive of the mail server allocated to the user
b) a special electronic device for storing text files
c) some area random access memory file server
d) part of the memory on the hard drive of the workstation
a) *.htm b) *.www in) *.txt g) *.web
a) to create, receive and transmit web pages
b) to ensure the functioning of email
c) for receiving and transferring files of any format
d) to ensure the operation of teleconferences
6. Theoretically, a modem transmitting information at a speed of 57600 bps can transmit 2 pages of text (3600 bytes) for:
a) 0.5 min b) 3 min 26 s c) 0.5 h d) 0.5 s
7. The Internet e-mail address is set:
[email protected]; what is the server name?
a) rub) mtu-net.ruin) user_nameg) mtu-net
8.
9. A computer connected to the Internet must have:
a) domain name
b) home page
c) URL
d) IP address
10. The global computer network is:
11. HTML ( HyperTEXTMARKUPLANGUAGE) is an:
a) expert system
c) text editor
d) web page markup language
12. WWW Hypertext Viewer
13. Dan Email:Symbols moscow is:
a) username
b) postal protocol
c) provider name
d) destination city
14.
b) radio relay lines
c) telephone lines
d) wire lines
15. The exchange of information between computer networks that have different standards for the presentation of information (network protocols) is carried out using:
16. The modem transmits data at a speed of 7680 bps. Transferring a text file took 1.5 minutes. Determine how many pages the transmitted text contained, if it is known that it was presented in 16-bit encodingUnicode , and on one page - 400 characters.
17. Access to the www.txt file located on the ftp.net server is carried out using the http protocol. Fragments of the file address are encoded with letters from A to F: A \u003d .txt B \u003d http C \u003d / D \u003d: // D \u003d .net E \u003d www F \u003d ftp. Record the sequence of these letters encoding the address of the specified file.
18. HTML document?
in )
g )
19. On servertime. org file is locatedhttp. docftp. Fragments of the address of this file are encoded with the letters A, B, C, ...,E. write down the sequence of these letters that encodes the address of the specified file
orgtime.
20.
o*.?*
a)autoexec. bat in)debug. txt
b) command.comg) msdos.sys
o*.?*
a)nofun. jpg in)funny. jpg
b) ufunn.pasg) funny1.ppt
21.
| & ».
22. | ", And for the logical operation" AND "- the symbol"& ».(Guitar
23. RebuildIPIPto the address.
Test
"Information and telecommunication technologies"
Option 2
1. A set of hardware and software tools that allow computers to exchange data:
2. A group of computers connected by information transmission channels and located within the building is called:
a) global computer network
b) information system with hyperlinks
c) local computer network
d) by email
3. The Internet provider is:
a) technical device
b) antivirus program
c) organization - Internet service provider
d) Web viewer
4. An email address has been set on the Internet:
What is the name of the owner of this email address?
a) rub) mtu-net.ruin) user_nameg) mtu-net
5.
Browsers are:
a) network viruses
b) antivirus software
6. Internet servers containing file archives allow:
7. Hypertext is:
a) very large text
8. The most powerful search engines on the Russian-speaking Internet are:
a) Index b) Search c) Server d) Yandex
9. Which of these communication lines is considered the "superhighway" of communication systems, since it has a very large information throughput:
a) fiber optic lines
b) radio relay lines
c) telephone lines
d) wire lines
10. The network protocol is:
a) network connection agreement
b) rules for transferring information between computers
c) agreements on how the objects to be connected interact with each other
d) a list of necessary devices
11. What word should be inserted instead of * * *? - When activated * * *, the system opens the corresponding file or hypermedia document, which can be installed on another computer that is also connected to the Internet. Some Web documents consist entirely of * * *.
a) Browser b) multimedia c) hyperlink d) Web server
12. Which of these entries is the email address:
a) www.rnd.runnet.ru
b) epson.com
d) ntv.ru
13. What part of this identifier indicates the protocol used to transfer the resource?
14. The configuration (topology) of the local computer network in which all workstations are connected directly to the server is called:
a) tree b) ring c) central d) star
15. Complete the phrase to get the correct statement: “A document prepared using the hypertext markup language usually has an extension ...”
a) .exe b)jpg in) .php d).html
16. A web page (HTML document) is:
Text file with the extension txt or doc
Text file with htm or html extension
Binary file with the extension com or exe
Image file with the extension gif or jpg
17. On the serverftp. edu. ru file is locatedwork. docaccessed by protocolftp. Fragments of the address of this file are encoded with the letters A, B, C, ..., G. write down the sequence of these letters, which encodes the address of the specified file
.docftp.
//
18. In the search engine query language, the symbol "is used to denote the logical operation" OR "| ", And for the logical operation" AND "- the symbol"& ».
Search server in auto mode compiled a table keywords for sites of a certain network segment. Here is a fragment of it:
How many pages will be found for India| History?19. The data transfer speed through a modem connection is 4096 bps. Transferring a text file through this connection took 10 seconds. Determine how many characters the transmitted text contained, if it is known that it was presented in 16-bit encodingUnicode .
20. In the tabledescending order
21. What tags put the title of a document in the table of contents of a web browser?< title> title>
< body> body>
< h1> h1>
< imgsrc=” name”>
22. a) Petya wrote down the IP address of the school server on a piece of paper and put it in his jacket pocket. Petina’s mother accidentally washed her jacket with a note. After washing, Petya found four scraps with fragments of an IP address in his pocket. These fragments are indicated by the letters A, B, C, and D. Restore the IP address. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
b) The figure shows fragments of one IP address. Each of the fragments is indicated by one of the letters A, B, C, D. Restore the IP address from these fragments. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
23. For group operations with files, file name masks are used. A mask is a sequence of letters, numbers, and other characters allowed in file names, which may also contain the following characters:
The symbol "?" Means exactly one arbitrary character.
The symbol "*" means any sequence of characters, including an empty sequence.
Determine which of the specified file names matches the mask *en?.* e
a) zen.exein) end1.exe
b) end.emlg) end.exe
Determine which of the specified file names matches the mask *fun??.* p*
a)nofun. jpg in)funny. jpg
b) ufunn.pasg) funny1.ppt
Test
"Information and telecommunication technologies"
3 option
1. To store files intended for general access by network users, it is used:
a) file server c) client server
b) workstation d) switch
2. The modem provides:
a) conversion of a binary code into an analog signal and vice versa
b) conversion of a binary code into an analog signal
c) conversion of an analog signal to binary code
d) amplification of the analog signal
3. A teleconference is:
a) the exchange of letters in global networks
b) information system in hyperlinks
c) a system for exchanging information between subscribers of a computer network
d) the process of creating, receiving, transmitting web pages
4. A computer that provides its resources for use by other computers when working together is called:
a) adapter c) station
b) switch d) server
5. Email allows you to send:
a) only messages
b) only files
c) messages and attached files
d) video
6. HTML ( HyperTEXTMARKUPLANGUAGE) is an:
a) programming system
b) text editor
c) web page markup language
d) database management system
7. A provider is:
a) a computer providing network backhaul
b) network connection program
c) a company providing network services
d) computer network specialist
8. Transport Protocol (TCP) - provides:
a) delivery of information from the sending computer to the recipient computer
b) splitting files into IP packets in the process of transferring and assembling files in the process of receiving
c) providing the user with information already processed
d) receiving, transmitting and issuing a single communication session
9. The program for creatingWeb-pages using languageHTML:
MsWord
Paint
Calculator
Notebook
10. Choose the correct email address
a)http@ mail. ru
b) Fofonov [email protected]
d)Katja@ mail_ ru
11. The identifier of some Internet resource has the following form: http://www.ftp.ru/index.html.What part of this identifier indicates the protocol used to transfer the resource?
a) www b) ftp c) http d) html
12. In the tablequeries to the search server are given. Arrange the query numbers in descending order of the number of pages that the search server will find for each query
13. Determine the maximum file size (in kilobytes) that can be transferred in 10 minutes if the modem transmits information at an average speed of 32 kilobits / s?14. What tags tell the browser what it isHTML document?
in )
b) g)
15. In the query language of the search server, the symbol "is used to denote the logical operation" OR "| ", And for the logical operation" AND "- the symbol"& ».
The search server automatically compiled a table of keywords for sites of a certain network segment. Here is a fragment of it:
How many pages will be found by request(Horns& Hooves) | Tail if requested by Horn | Hooves were found 400 pages, and for each of the queries Horn & Tail and Hooves & Tail - 0 pages?
16. Choose the correct email address
a)ivanov@ mail@ ru
b) S V [email protected]
in)www_ Petr@ mail. ru
d)rubik@ mailru
17. How many seconds will a regular modem transmitting messages at a speed of 28800 bps take to transmit a color raster image of 640x480 pixels, provided that the color of each pixel is encoded in three bytes?
18. A computer connected to the Internet must have:
a) IP address b) WEB page c) domain name d) URL
19.
A program for viewing hypertext pages is called:
Server c) HTML
Protocol d) Browser
20. The table shows the queries to the search server. Arrange the request numbers in increasing order of the number of pages that the search server will find for each request
To denote the logical operation "OR", the symbol "| ", And for the logical operation" AND "- the symbol"& ».
21. For group operations with files, maxi file names are used. A mask is a sequence of letters, numbers, and other characters allowed in file names, which may also contain the following characters:The symbol "?" Means exactly one arbitrary character.
The symbol * means any sequence of characters, including an empty sequence.
ki* .m *
a)kino. rm
b)rkino. mkv
in)kino. mp3
d)kino. m4 v
Determine which of the specified file names matches the mask ??ref.* d*
a)ref. doc
b)myref. rtf
in) noref.docx
g) referat.doc
22. RestoreIPaddress by fragments. In the response, indicate the sequence of letters denoting the fragments in the order correspondingIPto the address.
23. Complete the phrase to get the correct statement:“A document prepared using a hypertext markup language usually has an extension ...”
a) .exe in) .php
b)jpg d).html
Test
"Information and telecommunication technologies"
4 option
1. Specify the device to connect the computer to the network:
a) modem b) mouse c) scanner d) monitor
2. The exchange of information between computer networks that have different standards for the presentation of information (network protocols) is carried out using:
a) host computers c) gateways
b) email d) file servers
3. The program for viewing hypertext pages is called:
Server c) HTML
Protocol d) Browser
4. Web pages have the extension:
a) *.htm b) *.exe in) *.txt g) *.web
5. The FTP service on the Internet is designed to:
and for remote control technical systems
b) to ensure the operation of newsgroups
c) to ensure the functioning of e-mail
d) to receive and transfer files of any format
6. Hyperlinks on a web page can provide a transition ...
only within this web page
only on the web pages of this server
to any web page in this region
to any web page in the world
7. The configuration (topology) of the local computer network in which all workstations are connected directly to the server is called:
a) ring b) tire c) central d) star
8. Routing Protocol (IP) provides:
a) splitting files into IP packets during transmission and assembly of files during receipt
b) delivery of information from the sending computer to the recipient computer
c) preservation of mechanical, functional parameters of physical communication in a computer network;
d) control of data transmission equipment and communication channels
9. The table shows the queries to the search server. Sort the query numbers in ascending order
10. What tags set the size of the header?< p> p>
< imgsrc=” name”>
< body> body>
< h1> h1>
11. The identifier of some Internet resource has the following form: http://www.ftp.ru/index.html. What part of this identifier indicates the file name used to transfer the resource?
a)index b) ftp c) http d) html
12. A teleconference is:
a) service for the reception and transmission of files of any format
b) the exchange of letters in global networks
c) the process of creating, receiving and transmitting web pages
d) a system for exchanging information between subscribers of a computer network
a) domain name
b) home page
c) URL
d) IP address
14. The data rate through the ADSL connection is equal to 1024,000 bits / s. Transferring a file through this connection took 5 seconds. Determine the file size in kilobytes.
15. The modem provides:
a) attenuation of the analog signal
b) amplification of the analog signal
c) conversion of a binary code into an analog signal and vice versa
d) conversion of the analog signal into binary code
conversion of binary code to analog signal
16. Complete the phrase to get the correct statement: “A document prepared with the text editor Notepad usually has an extension ...”
a) .exe b)jpg in) .txt d).htm
17. Choose the correct email address
a)http@ mail. ru
b) Fofonov [email protected]
d)Katja@ mail_ ru
19. The data transfer rate through the ADSL connection is 128,000 bps. How long (in seconds) will it take to transfer a 500 KB file over this channel?
20. a)Petya wrote down the IP address of the school server on a piece of paper and put it in his jacket pocket. Petina’s mother accidentally washed her jacket with a note. After washing, Petya found four scraps with fragments of an IP address in his pocket. These fragments are indicated by the letters A, B, C, and D. Restore the IP address. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
21. For group operations with files, file name masks are used. A mask is a sequence of letters, numbers, and other characters allowed in file names, which may also contain the following characters:
The symbol "?" Means exactly one arbitrary character.
The symbol "*" means any sequence of characters, including an empty sequence.
Determine which of the specified file names matches the mask *en?.* e
a) end1.exe
b) end.eml
in)zen. exe
d)end. exe
Determine which of the specified file names matches the mask?ki* .m *
a)kino. rm
b)rkino. mkv
in)kino. mp3
d)kino. m4 v
22. The global computer network is:
a) the totality local networks and computers located over long distances and connected into a single system
b) a group of computers connected by information transmission channels and located within the building
c) a system for exchanging information on a specific topic
d) information system with hyperlinks
23 . What condition should be used to search the Internet for information about flowers growing on Taiwan or Honshu Island (the symbol | is used to indicate the logical operation "OR", and the symbol & is used for the operation "AND")?
a) flowers & (Taiwan | Honshu)
b) Flowers & Taiwan & Honshu
c) flowers | Taiwan | Honshu
g) flowers & (island | Taiwan | Honshu)
Test
"Information and telecommunication technologies"
5 option
1. The modem is:
a) mail program
b) network protocol
c) Internet server
d) technical device
2. An e-mail address is set on the Internet:
[email protected]; What is the top level domain name?
a) rub) mtu-net.ruin) user_nameg) mtu-net
3.
A teleconference is:
a) service for the reception and transmission of files of any format
b) the process of creating, receiving and transmitting web pages
d) a system for exchanging information between subscribers of a computer network
4. Which entry is the email address?
a)Ivanov@ mail@ ru
b)S V Novikov@ yandex. ru
in)www_ Petr@ mail. ru
d)Rubik@ mail ru
5. The identifier of some Internet resource has the following form: http://www.ftp.ru/index.html. What part of this identifier indicates that it isweb-page?
a) www b) ftp c) http d) html
6. The table shows the queries to the search server. Put the request numbers indescending order the number of pages that the search server will find for each request.
7. Transferring data through an ADSL connection took 2 minutes. During this time, a file was transferred, the size of which is 3,750 Kbytes. Determine the minimum speed (bit / s) at which such a transfer is possible.8. On the serverinfo.edu file is locatedlist.doc accessed by protocolftp . Fragments of the address of this file are encoded with the letters a, b, c ... g (see table). Record the sequence of these letters that encodes the address of the specified file on the Internet.
ab
c
d
e
f
g
info
list
://
.doc
ftp
.edu
/
9. What tag adds an image toHTML document?
< title> title>
< imgsrc=” name”>
< html> html>
< br>
10. Internet servers containing file archives allow you to:
a) download the necessary files
b) receive email
c) participate in teleconferences
d) conduct video conferences
11. HTML (HYPER TEXT MARKUP LANGUAGE)is an:
a) expert system
b) database management system
c) text editor
d) web page markup language
12. Browsers are:
a) network viruses
b) antivirus software
c) translators of a programming language
d) Web browser
13. A computer connected to the Internet must have:
a) domain name
b) home page
c) URL
d) IP address
14. Hypertext is:
a) very large text
b) text in which clicks on selected links can be performed
c) text typed on a computer
d) text that uses a large font
15. How many seconds will a modem transmitting messages at a speed of 14,400 bit / s take to transmit a message of 225 KB?
16. What tags create a hyperlink to other documents?
< imgsrc=” name”>
17. The data rate through the ADSL connection is 256,000 bps. Transferring a file through this connection took 2 minutes. Determine the file size in kilobytes.
18. The ftp.net file located on the txt.org server is accessed using the http protocol. Fragments of the file address are encoded with letters from A to F: A \u003d .net B \u003d ftp B \u003d: // Г \u003d http Д \u003d / Е \u003d .org Ж \u003d txt Write down the sequence of these letters encoding the address of the specified file on the Internet.
19. The exchange of information between computer networks that have different standards for the presentation of information (network protocols) is carried out using:
a) host computers c) trunks
b) email gateways
20. The table shows the queries to the search server. Put the request numbers inascending order the number of pages that the search server will find for each request.
21. RestoreIPaddress by fragments. In the response, indicate the sequence of letters denoting the fragments in the order correspondingIPto the address. 22. For group operations with files, file name masks are used. A mask is a sequence of letters, numbers, and other characters allowed in file names, which may also contain the following characters:The symbol "?" Means exactly one arbitrary character.
The symbol "*" means any sequence of characters, including an empty sequence.
Determine which of the specified file names matches the mask *o*.?*
a)autoexec. bat in)debug. txt
b) command.comg) msdos.sys
Determine which of the specified file names matches the mask *o*.?*
a)nofun. jpg in)funny. jpg
b) ufunn.pasg) funny1.ppt
23. The table shows the queries to the search server. Arrange the request numbers in increasing order of the number of pages that the search server will find for each request
To denote the logical operation "OR", the symbol "| ", And for the logical operation" AND "- the symbol"& ».
Test
"Information and telecommunication technologies"
6 option
1. A computer connected to the Internet must have:
a) domain name
b) home page
c) URL
d) IP address
2. The global computer network is:
a) a set of local networks and computers located over long distances and connected into a single system
b) a group of computers connected by information transmission channels and located within the building
c) a system for exchanging information on a specific topic
d) information system with hyperlinks
3. HTML (Hyper TEXT MARKUP LANGUAGE) is an:
a) expert system
b) database management system
c) text editor
d) web page markup language
4. WWW Hypertext Viewer
a) Server b) protocol c) HTML d) browser
5. Dan Email:Symbols moscow is:
a) username
b) postal protocol
c) provider name
d) destination city
6. Which of these communication lines is considered the "superhighway" of communication systems, since it has a very large information throughput:
a) fiber optic lines
b) radio relay lines
c) telephone lines
d) wire lines
7. The exchange of information between computer networks that have different standards for the presentation of information (network protocols) is carried out using:
a) host computers c) trunks
b) email gateways
8. The specified email address on the Internet:
[email protected]; what is the username?
a) rub) mtu-net.ruin) user_nameg) mtu-net
9.
Routing Protocol (IP) provides:
a) interpretation of data and its preparation for the user level
b) delivery of information from the sending computer to the recipient computer;
c) control of data transmission equipment and communication channels
d) splitting files into IP packets during transmission and assembly of files during receipt
10. A set of hardware and software tools that allow computers to exchange data:
a) interface b) backbone c) computer network d) adapters
11. Through an ADSL connection, a file of 2500 kB in size was transmitted for 40 s. How many seconds will it take to transfer a 2750 KB file.
12. The table shows the queries to the search server. Arrange the request numbers in increasing order of the number of pages that the search server will find for each request
To denote the logical operation "OR", the symbol "| ", And for the logical operation" AND "- the symbol"& ».
13. In the query language of the search server, the symbol "is used to denote the logical operation" OR "| ", And for the logical operation" AND "- the symbol"& ».The search server automatically compiled a table of keywords for sites of a certain network segment. Here is a fragment of it:
How many pages will be found by request(Guitar& Keyboards) | Percussion if requested Guitar | Keyboards found 400 pages, and for each query Guitar & Percussion and Keyboard & Percussion - 0 pages?
14. The data transfer rate through the ADSL connection is 128,000 bps. Transferring a file through this connection took 120 seconds. What is the file size in Kbytes (enter only a number in the form)?
15. On the servernews.edu file is locatedlist.txt accessed by protocolftp . Fragments of the address of this file are encoded with the letters A, B, C ... G (see table). Write down the sequence of these letters that encodes the address of the specified file on the Internet
AB
C
D
E
F
G
news
.txt
/
ftp
list
.edu
://
16. A teleconference is:
a) service for the reception and transmission of files of any format
b) a system for exchanging information between subscribers of a computer network
c) information system in hyperlinks
d) the process of creating, receiving and transmitting web pages
17. Which entry is the email address?
a)Kubok@ mail ru
b)S V Feloret@ yandex. ru
in)http_ Petr@ mail. ru
d)Popov@ mail@ ru
18. Browsers are:
a) network viruses
b) antivirus software
c) translators of a programming language
d) Web browser
19. What tags limit contentWeb-pages?
< imgsrc=” name”>
20. a) The figure shows fragments of a single IP address. Each of the fragments is indicated by one of the letters A, B, C, D. Restore the IP address from these fragments. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
b) Petya wrote down the IP address of the school server on a piece of paper and put it in his jacket pocket. Petina’s mother accidentally washed her jacket with a note. After washing, Petya found four scraps with fragments of an IP address in his pocket. These fragments are indicated by the letters A, B, C, and D. Restore the IP address. In the response, indicate the sequence of letters indicating the fragments in the order corresponding to the IP address.
21. In the tablequeries to the search server are given. Put the request numbers indescending order the number of pages that the search server will find for each request
22. For group operations with files, file name masks are used. A mask is a sequence of letters, numbers, and other characters allowed in file names, which may also contain the following characters:The symbol "?" Means exactly one arbitrary character.
The symbol "*" means any sequence of characters, including an empty sequence.
Determine howoe of the specified file names matches the mask *o*.?*
a) amugec.batin) config.sys
b) pdikurs.comg) io.sys
Determine howodoes the specified file name match the mask?v* de??.* t
a) video.txtin) svedenija.dtt
b) command.comg) avtonomdelo.dot
23. How many seconds will a modem transmitting messages at a speed of 28,800 bps take to transmit 100 pages of text in 30 lines of 60 characters each, provided that each character is encoded with 1 byte?
