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Recent questions tagged udp

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1 answer

1

CN Doubt
The underlying Transport layer protocol used by SMTP is ________ (a) TCP (b) UDP (c) Either TCP or UDP

Jeetmoni saikia asked in Computer Networks Nov 4, 2022

by Jeetmoni saikia

163 views

0 votes

1 answer

2

Which of the following describe the DHCP Discover message? 1) It uses FF:FF:FF:FF:FF:FF as a layer 2 broadcast. I uses UDP as the Transport layer protocol. It uses TCP as the Transport layer protocol. It does not use a layer 2 destination address. [A]. 1 only [B]. 1 and 2 @ [C]. 3 and 4 [D]. 4 only

Jeetmoni saikia asked in Computer Networks Oct 17, 2022

by Jeetmoni saikia

156 views

2 votes

1 answer

3

Packets of the same session may be routed through different paths in: 1)TCP, but not UDP 2)TCP and UDP 3)UDP, but not TCP 4) Neither TCP nor UDP

Jeetmoni saikia asked in Computer Networks Oct 15, 2022

by Jeetmoni saikia

189 views

1 vote

2 answers

4

NIELIT 2017 DEC Scientific Assistant A - Section B: 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

Lakshman Patel RJIT asked in Computer Networks Mar 31, 2020

by Lakshman Patel RJIT

1.8k views

1 vote

1 answer

5

Kurose and Ross Edition 6 Exercise 3 Question R10 (Page No 286)
In our rdt protocols, why did we need to introduce timers?

ajaysoni1924 asked in Computer Networks Apr 18, 2019

by ajaysoni1924

481 views

3 votes

1 answer

6

Kurose and Ross Edition 6 Exercise 3 Question R7 (Page No 286)
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 ... Host C? If so, how will the process at Host C know that these two segments originated from two different hosts?

ajaysoni1924 asked in Computer Networks Apr 18, 2019

by ajaysoni1924

1.2k views

1 vote

1 answer

7

Kurose and Ross Edition 6 Exercise 3 Question R6 (Page No 286)
Is it possible for an application to enjoy reliable data transfer even when the application runs over UDP? If so, how?

ajaysoni1924 asked in Computer Networks Apr 18, 2019

by ajaysoni1924

485 views

2 votes

1 answer

8

Kurose and Ross Edition 6 Exercise 3 Question R4 (Page No 286)
Describe why an application developer might choose to run an application over UDP rather than TCP.

ajaysoni1924 asked in Computer Networks Apr 18, 2019

by ajaysoni1924

450 views

0 votes

1 answer

9

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.

ajaysoni1924 asked in Computer Networks Apr 10, 2019

by ajaysoni1924

1.4k views

0 votes

1 answer

10

Andrew S. Tanenbaum Edition 5th Exercise 6 Question 19 (Page No. 608)
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.

ajaysoni1924 asked in Computer Networks Mar 18, 2019

by ajaysoni1924

1.3k views

0 votes

0 answers

11

Andrew S. Tanenbaum Edition 5th Exercise 6 Question 16 (Page No. 608)
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 ... performance issue, do you see a problem with this protocol? Think carefully about the possibility of processes crashing.

ajaysoni1924 asked in Computer Networks Mar 18, 2019

by ajaysoni1924

789 views

2 votes

1 answer

12

Andrew S. Tanenbaum Edition 5th Exercise 6 Question 15 (Page No. 607)
Why does UDP exist? Would it not have been enough to just let user processes send raw IP packets

ajaysoni1924 asked in Computer Networks Mar 18, 2019

by ajaysoni1924

417 views

0 votes

1 answer

13

UPPCL AE 2018:5
Which one of the following fields is present in both $\text{TCP}$ header and $\text{UDP}$ header? Urgent pointer Checksum Sequence number Acknowledgement number

Lakshman Patel RJIT asked in Computer Networks Jan 5, 2019

by Lakshman Patel RJIT

309 views

0 votes

0 answers

14

Forouzan
what is the difference between tcp socket and udp socket ?

Avinash Singh Kush 1 asked in Computer Networks Dec 2, 2018

by Avinash Singh Kush 1

225 views

0 votes

1 answer

15

Doubt
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?)

soumayan bandhu asked in Computer Networks Sep 24, 2018

by soumayan bandhu

535 views

0 votes

1 answer

16

Self Doubt
What is Port number for TCP,UDP,IGMP,ICMP ? this might be silly question but still wants some little discussion.

Nikhil Patil asked in Computer Networks Sep 1, 2018

by Nikhil Patil

350 views

2 votes

1 answer

17

Cn: Transport layer protocol
Which of the following transport layer protocols used to support email? a:) SMTP b:) TCP c::)UDP d) both b and c

rahul sharma 5 asked in Computer Networks Aug 15, 2017

by rahul sharma 5

1.9k views

2 votes

2 answers

18

Computer Networks
In TCP checksum is mandatory but in UDP checksum is optional. Why ?

Ashish Roy asked in Computer Networks Aug 6, 2017

1.3k views

2 votes

2 answers

19

#GATE2018 #GATE #COMPUTERSCIENCE #GATECSE
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?

popo040 asked in Computer Networks Jun 29, 2017

1.4k views

45 votes

3 answers

20

GATE CSE 2017 Set 2 | Question: 18
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 ... $connect$ function again for an already connected UDP socket. I only II only Both I and II Neither I nor II

Madhav asked in Computer Networks Feb 14, 2017

by Madhav

12.1k views

1 vote

0 answers

21

Arnabi asked in Computer Networks Jan 15, 2017

by Arnabi

261 views

5 votes

2 answers

22

Transport Layer
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 ?

SaiPrasadKousika asked in Computer Networks Aug 27, 2016

by SaiPrasadKousika

1.4k views

40 votes

9 answers

23

GATE IT 2006 | Question: 69
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 $Z$

Ishrat Jahan asked in Computer Networks Nov 1, 2014

by Ishrat Jahan

11.4k views

27 votes

4 answers

24

GATE CSE 2013 | Question: 12
The transport layer protocols used for real time multimedia, file transfer, $\textsf{DNS}$ and email, respectively are $\textsf{TCP, UDP, UDP}\; \text{and}\; \textsf{TCP}$ $\textsf{UDP, TCP, TCP}\; \text{and}\; \textsf{UDP}$ $\textsf{UDP, TCP, UDP}\; \text{and}\; \textsf{TCP}$ $\textsf{TCP, UDP, TCP}\;\text{and}\; \textsf{UDP}$

Arjun asked in Computer Networks Sep 23, 2014

by Arjun

10.1k views

30 votes

5 answers

25

GATE CSE 2005 | Question: 23
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

Kathleen asked in Computer Networks Sep 22, 2014

16.1k views

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Recent questions tagged udp