Recent questions in Computer Networks

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UGCNET-June-2019-II-81

asked Jul 2 in Computer Networks by Arjun Veteran (413k points) | 21 views

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2

UGCNET-June-2019-II-82

asked Jul 2 in Computer Networks by Arjun Veteran (413k points) | 16 views

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UGCNET-June-2019-II-83

asked Jul 2 in Computer Networks by Arjun Veteran (413k points) | 16 views

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UGCNET-June-2019-II-84
You need $500$ subnets, each with about $100$ unusable host address per subnet. What network mask will you assign using a class B network? $255.255.255.252$ $255.255.255.128$ $255.255.255.0$ $255.255.254.0$

asked Jul 2 in Computer Networks by Arjun Veteran (413k points) | 19 views

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5

UGCNET-June-2019-II-85

asked Jul 2 in Computer Networks by Arjun Veteran (413k points) | 21 views

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6

UGCNET-June-2019-II-86

asked Jul 2 in Computer Networks by Arjun Veteran (413k points) | 26 views

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UGCNET-June-2019-II-87

asked Jul 2 in Computer Networks by Arjun Veteran (413k points) | 18 views

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UGCNET-June-2019-II-88

asked Jul 2 in Computer Networks by Arjun Veteran (413k points) | 13 views

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UGCNET-June-2019-II-89

asked Jul 2 in Computer Networks by Arjun Veteran (413k points) | 13 views

+1 vote

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10

forouzan 5 th edition
A host has the address 581E: 1456:2314:ABCD::1211. If the node identification is 48 bits, find the address of the subnet to which the host is attached.

asked Jun 10 in Computer Networks by chirudeepnamini (15 points) | 76 views

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11

forouzan 4th edition chapter 19
An organization is granted the block 16.0.0.0/8. The administrator wants to create 500 fixed-length subnets.Find the first and last addresses in subnet 500.

asked Jun 10 in Computer Networks by chirudeepnamini (15 points) | 67 views

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12

self doubt Stop and wait protocol
Consider a network topology using STOP and WAIT protocol A---------R----------B (here R is STORE and FORWARD ROUTER) Tp=1uS , Tx(data)=1000uS, Tx(ack)=10uS File Size =10000bits, Packet size=1000bits. How long will it take for A to ... then A will Transmit second packet OR here A will send packet toHost B and B will send ack back to A then A will send second packet

asked Jun 9 in Computer Networks by gourav94240 (55 points) | 54 views

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13

Self Doubt:TDM and Polling
Is Time division multiplexing and Polling in syllabus? In the official website they have mentioned only ethernet..

asked May 30 in Computer Networks by Hirak Active (3.3k points) | 48 views

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14

GeeksForGeeks IP addressing ...
Which of the following is a public IP? 10.15.14.12 192.168.52.62 173.32.1.1 None

asked May 30 in Computer Networks by Hirak Active (3.3k points) | 80 views

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15

GO-BACK-N (forouzan)
Question no P23-12

asked May 27 in Computer Networks by altamash (397 points) | 60 views

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16

Computer Networks -email
How will you send an e-mail to someone when you have neither the recipient's e-mail address nor the e-mail application.

asked May 22 in Computer Networks by shraddha priya Active (3.6k points) | 61 views

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17

networks TCP
Calculate the effective throughput for transferring a 1000 KB file assuming TCP using slow start congestion control technique. Given the round trip time 100 ms, and maximum segment size is 1460 bytes. Assume there are no losses and both the bandwidth and the receiver window size is infinite. (A) 5MBPS (B) 10Mbps (C) 1MBPS (D) 1Mbps

asked May 22 in Computer Networks by pradeepchaudhary Active (1.2k points) | 48 views

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18

Made Easy Test Series: Computer Network-Dijkstra Algo
Consider Dijkstra's algorithm in linked state routing protocol at node $u.$ Professor Ram first sets the route for each directly connected node $v.$ to be the link connecting $u$ to $v.$ Ram then implements the rest of the algorithm ... costs where all routing table entry will be correct. $D)$ Both $A)$ and $B)$ How Dijkstra working here?

asked May 14 in Computer Networks by srestha Veteran (112k points) | 45 views

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19

ISI2018-PCB-B9
The data link layer uses a fixed-size sliding window protocol, where the window size for the connection is equal to twice the bandwidth-delay product of the network path. Consider the following three scenarios, in each of which only the given parameter changes as specified (no ... minimum value of the round trip time $R$ increases to $1.8R$; the window size $W$ decreases to $W/3$

asked May 12 in Computer Networks by akash.dinkar12 Boss (40.9k points) | 27 views

+1 vote

1 answer

20

Self Doubt :Bit Stuffing
End delimeter is → 0111 data to be sent 0111111111. What is the data we should send to the reciever?

asked May 8 in Computer Networks by Hirak Active (3.3k points) | 120 views

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21

Pgee mock exam

asked Apr 23 in Computer Networks by Dipanshu Rana (267 points) | 30 views

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22

Made Easy Test Series: Computer Network-ICMP
Consider a very large network $10000$ routers. Two host $A$ and $B$ connected with this network. Host $A$ sends a data to host $B$. and after some unit of time host $A$ receives $ICMP$ time exceed message for the samedata ... some ICMP message generated? Say if $ICMP$ message generated in $9999th$ router, then where it give error of time exceed message?

asked Apr 20 in Computer Networks by srestha Veteran (112k points) | 111 views

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1 answer

23

Kurose and Ross Edition 6 Exercise 3 Question R18 (Page No 288)
True or false? Consider congestion control in TCP. When the timer expires at the sender, the value of ssthresh is set to one half of its previous value.

asked Apr 18 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 89 views

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24

Kurose and Ross Edition 6 Exercise 3 Question R17 (Page No 287)
Suppose two TCP connections are present over some bottleneck link of rate R bps. Both connections have a huge file to send (in the same direction over the bottleneck link). The transmissions of the files start at the same time. What transmission rate would TCP like to give to each of the connections?

asked Apr 18 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 37 views

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1 answer

25

Kurose and Ross Edition 6 Exercise 3 Question R15 (Page No 287)
Suppose Host A sends two TCP segments back to back to Host B over a TCP connection. The first segment has sequence number 90; the second has sequence number 110. How much data is in the first segment? Suppose that the ... segment arrives at B. In the acknowledgment that Host B sends to Host A, what will be the acknowledgment number?

asked Apr 18 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 57 views

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1 answer

26

Kurose and Ross Edition 6 Exercise 3 Question R14 (Page No 287)
True or false? Host A is sending Host B a large file over a TCP connection. Assume Host B has no data to send Host A. Host B will not send acknowledgments to Host A because Host B cannot piggyback the acknowledgments ... 4 bytes of data over a TCP connection to Host B. In this same segment the acknowledgment number is necessarily 42.

asked Apr 18 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 44 views

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27

Kurose and Ross Edition 6 Exercise 3 Question R13 (Page No 287)
Visit the Selective Repeat Java applet at the companion Web site. Have the source send five packets, and then pause the animation before any of the five packets reach the destination. Then kill the first packet and resume ... what happens. Finally, try sending six packets. What happens? How selective repeat and go back-n is different?

asked Apr 18 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 15 views

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1 answer

28

Kurose and Ross Edition 6 Exercise 3 Question R12 (Page No 286)
Visit the Go-Back-N Java applet at the companion Web site. Have the source send five packets, and then pause the animation before any of the five packets reach the destination. Then kill the first packet and ... destination and kill the first acknowledgment. Describe again what happens. Finally, try sending six packets. What happens?

asked Apr 18 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 20 views

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29

Kurose and Ross Edition 6 Exercise 3 Question R11 (Page No 286)
Suppose that the roundtrip delay between the sender and receiver is constant and known to the sender. Would a timer still be necessary for protocol rdt 3.0 as shown in the figure, assuming that packets can be lost? Explain.

asked Apr 18 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 22 views

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30

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

asked Apr 18 in Computer Networks by ajaysoni1924 Boss (10.2k points) | 34 views

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