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Recent questions tagged udp

1 vote
2 answers
1
Correct expression tor UDP user datagram length is length of UDP = length of IP- length of IP header's length of UDP= length of UDP-length of UDP header's length of UDP = length of IP+length of IP header's length of UDP = length of UDP+length of UDP header's
asked Mar 31, 2020 in Computer Networks Lakshman Patel RJIT 607 views
3 votes
1 answer
3
Suppose a process in Host C has a UDP socket with port number 6789. Suppose both Host A and Host B each send a UDP segment to Host C with destination port number 6789. Will both of these segments be directed to the same socket at Host C? If so, how will the process at Host C know that these two segments originated from two different hosts?
asked Apr 18, 2019 in Computer Networks ajaysoni1924 429 views
0 votes
1 answer
6
0 votes
1 answer
7
Both UDP and TCP use port numbers to identify the destination entity when delivering a message. Give two reasons why these protocols invented a new abstract ID (port numbers), instead of using process IDs, which already existed when these protocols were designed.
asked Mar 18, 2019 in Computer Networks ajaysoni1924 520 views
0 votes
0 answers
8
Consider a simple application-level protocol built on top of UDP that allows a client to retrieve a file from a remote server residing at a well-known address. The client first sends a request with a file name, and the server responds with a sequence ... . Ignoring the obvious performance issue, do you see a problem with this protocol? Think carefully about the possibility of processes crashing.
asked Mar 18, 2019 in Computer Networks ajaysoni1924 451 views
0 votes
0 answers
10
what is the difference between tcp socket and udp socket ?
asked Dec 2, 2018 in Computer Networks Avinash Singh Kush 1 104 views
0 votes
1 answer
11
UDP does not insert sequence numbers. The packets are expected to arrive as a continuous stream or they are dropped. What is the meaning of this line?(does it mean UDP discard out of order packets?)
asked Sep 24, 2018 in Computer Networks soumayan bandhu 297 views
0 votes
1 answer
12
What is Port number for TCP,UDP,IGMP,ICMP ? this might be silly question but still wants some little discussion.
asked Sep 1, 2018 in Computer Networks Nikhil Patil 183 views
1 vote
2 answers
13
Which of the following transport layer protocols used to support email? a:) SMTP b:) TCP c::)UDP d) both b and c
asked Aug 15, 2017 in Computer Networks rahul sharma 5 809 views
1 vote
2 answers
14
In TCP checksum is mandatory but in UDP checksum is optional. Why ?
asked Aug 6, 2017 in Computer Networks Ashish Roy 510 views
2 votes
2 answers
15
does packets in TCP follow the same route from the source to destination or different? And what is really a connection oriented and connectionless service?
asked Jun 29, 2017 in Computer Networks popo040 1k views
40 votes
3 answers
16
Consider socket API on a Linux machine that supports connected UDP sockets. A connected UDP socket is a UDP socket on which $connect$ function has already been called. Which of the following statements is/are CORRECT? A connected UDP socket can be used to communicate ... successfully call $connect$ function again for an already connected UDP socket. I only II only Both I and II Neither I nor II
asked Feb 14, 2017 in Computer Networks Madhav 8.8k views
1 vote
0 answers
17
asked Jan 15, 2017 in Computer Networks Arnabi 127 views
5 votes
2 answers
18
In Transport layer either in TCP header or UDP header in checksum field we calculate checksum for Pseudo header of IP + header of TCP/UDP + data of TCP/UDP. Transport layer should fill checksum field in header before the Segment pass to Network layer. Here my doubt is how TL knows the IP header which is going to create in next step NL ?
asked Aug 27, 2016 in Computer Networks SaiPrasadKousika 862 views
36 votes
10 answers
19
A program on machine $X$ attempts to open a $UDP$ connection to port $5376$ on a machine $Y$, and a $TCP$ connection to port $8632$ on machine $Z$. However, there are no applications listening at the corresponding ports on $Y$ and $Z$. An $ICMP$ Port Unreachable error will be generated by $Y$ but not $Z$ $Z$ but not $Y$ Neither $Y$ nor $Z$ Both $Y$ and $Z$
asked Nov 1, 2014 in Computer Networks Ishrat Jahan 8.2k views
24 votes
4 answers
20
The transport layer protocols used for real time multimedia, file transfer, DNS and email, respectively are TCP, UDP, UDP and TCP UDP, TCP, TCP and UDP UDP, TCP, UDP and TCP TCP, UDP, TCP and UDP
asked Sep 23, 2014 in Computer Networks Arjun 6.9k views
26 votes
5 answers
21
Packets of the same session may be routed through different paths in: TCP, but not UDP TCP and UDP UDP, but not TCP Neither TCP nor UDP
asked Sep 22, 2014 in Computer Networks Kathleen 10.3k views
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