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Recent questions tagged application-layer-protocols

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Recent questions tagged application-layer-protocols

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3
Kurose and Ross Edition 6 Exercise 2 Question P3 (Page No 171)
Consider an HTTP client that wants to retrieve a Web document at a given URL. The IP address of the HTTP server is initially unknown. What transport and application-layer protocols besides HTTP are needed in this scenario?
Consider an HTTP client that wants to retrieve a Web document at a given URL. The IP address of the HTTP server is initially unknown. What transport and application-layer protocols besides HTTP are needed in this scenario?
asked Apr 10, 2019 in Computer Networks ajaysoni1924 158 views
1 vote
1 answer
5
Kurose and Ross Edition 6 Exercise 2 Question P1 (Page No 171)
True or false? A user requests a Web page that consists of some text and three images. For this page, the client will send one request message and receive four response messages. Two distinct Web pages (for example, ... indicates when the object in the response was last modified. HTTP response messages never have an empty message body.
True or false? A user requests a Web page that consists of some text and three images. For this page, the client will send one request message and receive four response messages. Two distinct Web pages (for example, www.mit.edu/research.html and www. ... the HTTP response message indicates when the object in the response was last modified. HTTP response messages never have an empty message body.
asked Apr 10, 2019 in Computer Networks ajaysoni1924 276 views
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0 answers
6
Kurose and Ross Edition 6 Exercise 2 Question R20 (Page No 170)
Look over your received emails, and examine the header of a message sent from a user with a .edu email address. Is it possible to determine from the header the IP address of the host from which the message was sent? Do the same for a message sent from a Gmail account.
Look over your received emails, and examine the header of a message sent from a user with a .edu email address. Is it possible to determine from the header the IP address of the host from which the message was sent? Do the same for a message sent from a Gmail account.
asked Apr 10, 2019 in Computer Networks ajaysoni1924 87 views
0 votes
1 answer
7
Kurose and Ross Edition 6 Exercise 2 Question R19 (Page No 170)
Is it possible for an organization’s Web server and mail server to have exactly the same alias for a hostname (for example, $foo.com$)? What would be the type for the RR that contains the hostname of the mail server?
Is it possible for an organization’s Web server and mail server to have exactly the same alias for a hostname (for example, $foo.com$)? What would be the type for the RR that contains the hostname of the mail server?
asked Apr 10, 2019 in Computer Networks ajaysoni1924 77 views
0 votes
1 answer
10
Kurose and Ross Edition 6 Exercise 2 Question R16 (Page No 170)
Suppose Alice, with a Web-based e-mail account (such as Hotmail or Gmail), sends a message to Bob, who accesses his mail from his mail server using POP3. Discuss how the message gets from Alice’s host to Bob’s host. Be sure to list the series of application-layer protocols that are used to move the message between the two hosts.
Suppose Alice, with a Web-based e-mail account (such as Hotmail or Gmail), sends a message to Bob, who accesses his mail from his mail server using POP3. Discuss how the message gets from Alice’s host to Bob’s host. Be sure to list the series of application-layer protocols that are used to move the message between the two hosts.
asked Apr 10, 2019 in Computer Networks ajaysoni1924 201 views
0 votes
0 answers
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Kurose and Ross Edition 6 Exercise 2 Question R13 (Page No 170)
Describe how Web caching can reduce the delay in receiving a requested object. Will Web caching reduce the delay for all objects requested by a user or for only some of the objects? Why?
Describe how Web caching can reduce the delay in receiving a requested object. Will Web caching reduce the delay for all objects requested by a user or for only some of the objects? Why?
asked Apr 10, 2019 in Computer Networks ajaysoni1924 68 views
0 votes
1 answer
16
Kurose and Ross Edition 6 Exercise 2 Question R8 (Page No 169)
List the four broad classes of services that a transport protocol can provide. For each of the service classes, indicate if either UDP or TCP (or both) provides such a service.
List the four broad classes of services that a transport protocol can provide. For each of the service classes, indicate if either UDP or TCP (or both) provides such a service.
asked Apr 10, 2019 in Computer Networks ajaysoni1924 302 views
0 votes
0 answers
20
Andrew S. Tanenbaum Edition 5th Exercise 7 Question 32 (Page No. 761)
Write a program in JavaScript that accepts an integer greater than 2 and tells whether it is a prime number. Note that JavaScript has if and while statements with the same syntax as C and Java. The modulo operator is %. If you need the square root of x, use Math.sqrt (x).
Write a program in JavaScript that accepts an integer greater than 2 and tells whether it is a prime number. Note that JavaScript has if and while statements with the same syntax as C and Java. The modulo operator is %. If you need the square root of x, use Math.sqrt (x).
asked Mar 19, 2019 in Computer Networks ajaysoni1924 53 views
0 votes
0 answers
21
Andrew S. Tanenbaum Edition 5th Exercise 7 Question 46 (Page No. 762)
Some cybersquatters have registered domain names that are misspellings of common corporate sites, for example, www.microsfot.com. Make a list of at least five such domains.
Some cybersquatters have registered domain names that are misspellings of common corporate sites, for example, www.microsfot.com. Make a list of at least five such domains.
asked Mar 19, 2019 in Computer Networks ajaysoni1924 71 views
0 votes
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22
Andrew S. Tanenbaum Edition 5th Exercise 7 Question 47 (Page No. 762)
Numerous people have registered DNS names that consist of www.word.com, where word is a common word. For each of the following categories, list five such Web sites and briefly summarize what it is (e.g., www.stomach. ... , foods, household objects, and body parts. For the last category, please stick to body parts above the waist.
Numerous people have registered DNS names that consist of www.word.com, where word is a common word. For each of the following categories, list five such Web sites and briefly summarize what it is (e.g., www.stomach.com belongs to a gastroenterologist on Long ... of categories: animals, foods, household objects, and body parts. For the last category, please stick to body parts above the waist.
asked Mar 19, 2019 in Computer Networks ajaysoni1924 77 views
0 votes
0 answers
23
Andrew S. Tanenbaum Edition 5th Exercise 7 Question 48 (Page No. 762)
Rewrite the server of Fig. 6-6 as a true Web server using the GET command for HTTP 1.1. It should also accept the Host message. The server should maintain a cache of files recently fetched from the disk and serve requests from the cache when possible.
Rewrite the server of Fig. 6-6 as a true Web server using the GET command for HTTP 1.1. It should also accept the Host message. The server should maintain a cache of files recently fetched from the disk and serve requests from the cache when possible.
asked Mar 19, 2019 in Computer Networks ajaysoni1924 45 views
0 votes
0 answers
24
Andrew S. Tanenbaum Edition 5th Exercise 7 Question 23 (Page No. 759)
Imagine that someone in the math department at Stanford has just written a new document including a proof that he wants to distribute by FTP for his colleagues to review. He puts the program in the FTP directory ftp/pub/forReview/newProof.pdf. What is the URL for this program likely to be?
Imagine that someone in the math department at Stanford has just written a new document including a proof that he wants to distribute by FTP for his colleagues to review. He puts the program in the FTP directory ftp/pub/forReview/newProof.pdf. What is the URL for this program likely to be?
asked Mar 19, 2019 in Computer Networks ajaysoni1924 105 views
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