search
Log In
20 votes
2.4k views

Consider the following clauses:

  1. Not inherently suitable for client authentication.
  2. Not a state sensitive protocol.
  3. Must be operated with more than one server.
  4. Suitable for structured message organization.
  5. May need two ports on the serve side for proper operation.

The option that has the maximum number of correct matches is

  1.  IMAP-i;  FTP-ii;  HTTP-iii;  DNS-iv;  POP3-v
  2.  FTP-i;  POP3-ii;  SMTP-iii;  HTTP-iv;  IMAP-v
  3.  POP3-i;  SMTP-ii;  DNS-iii;  IMAP-iv;  HTTP-v
  4.  SMTP-i;  HTTP-ii;  IMAP-iii;  DNS-iv;  FTP-v
in Computer Networks 2.4k views

2 Answers

22 votes
 
Best answer

They are asking for maximum correct matches so

  1. Should be $\text{HTTP}$ thus we use $\text{HTTPS}$.
  2. $\text{HTTP}$ as it does not depend on state of device or operating system.
  3. $\text{IMAP}$ or $\text{DNS}^*$Not sure but they may involve multiple servers.
  4. $\text{POP3}$ is suitable for structuring or arranging the folders.
  5. $\text{FTP}$ needs two ports,$20$ for data and $21$ for control.


Thus, Option D, As it's matching with $\text{HTTP-2,IMAP-3,FTP-5}$.


edited by
0

Should be HTTP thus we use HTTPS

This statement requires small correction. 

1

Where did you read the point about POP3 ?POP3 is suitable for structuring or arranging the folders.

Can you given any reference?

1

Need clarification for iii)

2 servers are needed for SMTP..isn't it?

1 vote
Option d.
7
why ?
3
I think ftp uses two ports 21 for commands and 20 for data transfer.. thats all i know.
1
@Akash check out my answer.
Answer:

Related questions

0 votes
2 answers
1
899 views
Consider a token ring topology with N stations (numbered 1 to N) running token ring protocol where the stations are equally spaced. When a station gets the token it is allowed to send one frame of fixed size. Ring latency is tp, while the transmission time of a frame is tt. All other latencies ... maximum utilization of the token ring when tt = 5 ms, tp = 3 ms, N = 15 is: 0.545 0.655 0.9375 0.961
asked Oct 31, 2014 in Computer Networks Ishrat Jahan 899 views
0 votes
2 answers
2
1.5k views
Consider a token ring topology with N stations (numbered 1 to N) running token ring protocol where the stations are equally spaced. When a station gets the token it is allowed to send one frame of fixed size. Ring latency is tp, while the transmission time of a frame is tt. All other latencies ... The maximum utilization of the token ring when tt =3 ms, tp = 5 ms, N = 10 is 0.545 0.6 0.857 0.961
asked Oct 31, 2014 in Computer Networks Ishrat Jahan 1.5k views
22 votes
3 answers
3
6.7k views
You are given the following four bytes : 10100011 00110111 11101001 10101011 Which of the following are substrings of the base $64$ encoding of the above four bytes? $\text{zdp}$ $\text{fpq}$ $\text{qwA}$ $\text{oze}$
asked Oct 30, 2014 in Computer Networks Ishrat Jahan 6.7k views
32 votes
4 answers
4
3.9k views
A broadcast channel has $10$ nodes and total capacity of $10$ Mbps. It uses polling for medium access. Once a node finishes transmission, there is a polling delay of $80$ μs to poll the next node. Whenever a node is polled, it is allowed to transmit a maximum of $1000$ bytes. The maximum throughput of the broadcast channel is: $1$ Mbps $100/11$ Mbps $10$ Mbps $100$ Mbps
asked Oct 30, 2014 in Computer Networks Ishrat Jahan 3.9k views
...