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Recent questions tagged computer-networks
3
votes
1
answer
1261
CN_METest
I have a doubt here. When timeout occurs, the congestion windows size is 18MSS.and Till now total RTT before this timeout were 6. Now, my threshold will be set to 9MSS and congestion window will start from 1 MSS.So, now when I send 1MSS window and receive it's ack and then my window size changes to 2MSS, will this RTT be counted as 7th RTT or the 8th RTT?
I have a doubt here. When timeout occurs, the congestion windows size is 18MSS.and Till now total RTT before this timeout were 6.Now, my threshold will be set to 9MSS and...
Ayush Upadhyaya
1.1k
views
Ayush Upadhyaya
asked
Aug 22, 2018
Computer Networks
congestion-control
tcp
computer-networks
+
–
5
votes
3
answers
1262
Made Easy Computer Networks
For an IP address 197.111.121.199 and subnet mask 255.255.255.240 of a Class A network, what is the 1st subnet ID, 2nd subnet ID, last subnet ID and IP address of last host of last subnet?
For an IP address 197.111.121.199 and subnet mask 255.255.255.240 of a Class A network, what is the 1st subnet ID, 2nd subnet ID, last subnet ID and IP address of last ho...
Sambhrant Maurya
1.2k
views
Sambhrant Maurya
asked
Aug 22, 2018
Computer Networks
computer-networks
subnetting
+
–
0
votes
1
answer
1263
kurose
difference between point to point and peer to peer ???
difference between point to point and peer to peer ???
vijju532
369
views
vijju532
asked
Aug 22, 2018
Computer Networks
computer-networks
reference-book
+
–
0
votes
0
answers
1264
Help me solve this networking numerical
Quoted: At the start of every second, a train of 100 bits arrive to a queue at rate 1000 bits/second. The departure rate from the queue is 500 bits/second. The queue is served bit-by-bit, and you can assume the buffer size is infinite. a) What is the average queue occupancy? (in bits) Note: Enter an integer.
Quoted:At the start of every second, a train of 100 bits arrive to a queue at rate 1000 bits/second. The departure rate from the queue is 500 bits/second. The queue is se...
Phantom5
307
views
Phantom5
asked
Aug 21, 2018
Computer Networks
computer-networks
queueing
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–
0
votes
0
answers
1265
Please help me out with this networking numerical and state why?
Quoted: What data rate is needed to transmit an uncompressed 4" x 6" photograph every second with a resolution of 1200 dots per inch and 24 bits per dot (pixel)? 1. 691,200 kb/s 2. 28.8 kb/s 3. 8.29 Mb/s 4. 829 Mb/s
Quoted:What data rate is needed to transmit an uncompressed 4" x 6" photograph every second with a resolution of 1200 dots per inch and 24 bits per dot (pixel)?1. 691,200...
Phantom5
244
views
Phantom5
asked
Aug 21, 2018
Computer Networks
computer-networks
data-rate
+
–
1
votes
1
answer
1266
MadeEasy Workbook: Computer Networks - Subnetting
The Internet host is roughly doubling in size every 18 months. Approximate estimates put the number of hosts on it at 7 million in January 1996. Use this data to compute the expected number of Internet host in the year 2008. in billion how to solve plz?
The Internet host is roughly doubling in size every 18 months. Approximate estimates put the number of hosts on it at 7 million in January 1996. Use this data to compute ...
mobashshir
2.4k
views
mobashshir
asked
Aug 21, 2018
Computer Networks
computer-networks
subnetting
made-easy-booklet
+
–
1
votes
4
answers
1267
MadeEasy Test Series: Computer Networks - Network Security
DH key exchange algorithm is used to establish a session between sender and receiver with n=23 and g=5. The sender's secret key is 6 and the receiver's secret key is 15. What is the secret key between the receiver and sender? Please explain with solution P.S: Answer is given as 2
DH key exchange algorithm is used to establish a session between sender and receiver with n=23 and g=5. The sender's secret key is 6 and the receiver's secret key is 15. ...
Kalpataru Bose
617
views
Kalpataru Bose
asked
Aug 18, 2018
Computer Networks
made-easy-test-series
network-security
computer-networks
+
–
3
votes
0
answers
1268
MadeEasy Workbook: Computer Networks - Sliding Window
Consider a sliding window protocol operating at the data link layer between two stations 1000 kilometers apart, directly connected by an error-free 1.0 Mbps link. The frame sizes used are 500 bits, of which 50 bits are header and 450 bits are data ... delay is 10 µsec/km. If a window size of W = 10 is used, then the efficiency of the channel is
Consider a sliding window protocol operating at the data link layer between two stations 1000kilometers apart, directly connected by an error-free 1.0 Mbps link. The fram...
Jaggi
881
views
Jaggi
asked
Aug 17, 2018
Computer Networks
computer-networks
sliding-window
made-easy-booklet
+
–
0
votes
1
answer
1269
Computer network
we know that router is a 3 layer device (upto network layer)....then how it runs RIP,OSPF protocol for routing protocol ????i mean routing protocol runs on transport layer(because they uses UDP/TCP).....how it is possible??
we know that router is a 3 layer device (upto network layer)....then how it runs RIP,OSPF protocol for routing protocol ????i mean routing protocol runs on transport laye...
Ravi prakash pandey
288
views
Ravi prakash pandey
asked
Aug 14, 2018
Computer Networks
computer-networks
tcp
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–
1
votes
0
answers
1270
ME_Test_CSMA/CD
I was not convinced by the solution provided so, I made my own analysis. Given propagation delay is 225-bit times, and since bandwidth is $10^7 bps$, so my $T_p=22.5 \mu s$ Suppose at t=0, both A and B start to transmit. At t=$22.5 \mu s$, both A and B will detect ... both A and B. Now, my question is whether at t=$51 \mu s$ my channel would look idle to A and B or at $50 \mu s$ ?
I was not convinced by the solution provided so, I made my own analysis.Given propagation delay is 225-bit times, and since bandwidth is $10^7 bps$, so my $T_p=22.5 \mu ...
Ayush Upadhyaya
202
views
Ayush Upadhyaya
asked
Aug 14, 2018
Computer Networks
csma-cd
computer-networks
+
–
1
votes
1
answer
1271
GATE syllabus
Does TDM, pooling, Token Ring access control method in GATE 2019 Syllabus?
Does TDM, pooling, Token Ring access control method in GATE 2019 Syllabus?
abdulmcajh
790
views
abdulmcajh
asked
Aug 11, 2018
Computer Networks
computer-networks
+
–
0
votes
1
answer
1272
Doubt in networking
Except reliability and connection oriented what are the other functionalities which are produced by TCP but not by UDP?
Except reliability and connection oriented what are the other functionalities which are produced by TCP but not by UDP?
soumayan bandhu
403
views
soumayan bandhu
asked
Aug 10, 2018
Computer Networks
computer-networks
osi-model
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–
0
votes
1
answer
1273
Doubt in networking
What is the difference between host to host network connection and end to end network connection? Why host to host connection for network layer and end to end connection for transport layer?
What is the difference between host to host network connection and end to end network connection? Why host to host connection for network layer and end to end connect...
soumayan bandhu
1.1k
views
soumayan bandhu
asked
Aug 10, 2018
Computer Networks
computer-networks
osi-model
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–
0
votes
0
answers
1274
Doubt in networking
I have a small doubt about throughput concept in TDM. Can you explain how Throughput of LAN = number of stations in LAN * Throughput of each station. (Throughput is in bits per second )
I have a small doubt about throughput concept in TDM. Can you explain howThroughput of LAN = number of stations in LAN * Throughput of each station. (Throughp...
soumayan bandhu
157
views
soumayan bandhu
asked
Aug 10, 2018
Computer Networks
computer-networks
+
–
0
votes
1
answer
1275
Made Easy Workbook - Computer Networks
Consider two machines, A and B, connected by a 100 Mbps Ethernet with three store and forward relay switches in path between them. Suppose that no other machines are using the Ethernet, that each link introduces a propagation delay 12 microsecond, and ... for a 1500 bytes packet, as measured from transmission of first bit from A to receipt of last bit at B?
Consider two machines, A and B, connected by a 100 Mbps Ethernet with three store and forward relay switches in path between them. Suppose that no other machines are usin...
Sumit Singh Chauhan
1.6k
views
Sumit Singh Chauhan
asked
Aug 8, 2018
Computer Networks
computer-networks
data-link-layer
network-switching
numerical-answers
+
–
1
votes
1
answer
1276
Made Easy Workbook - Computer Network
The round trip propagation delay for a 100Mbps Ethernet having 48-bit jamming signal is 64 ms. What is the minimum frame size (in bytes)?
The round trip propagation delay for a 100Mbps Ethernet having 48-bit jamming signal is 64 ms. What is the minimum frame size (in bytes)?
Sumit Singh Chauhan
1.7k
views
Sumit Singh Chauhan
asked
Aug 7, 2018
Computer Networks
computer-networks
mac-layer
ethernet
csma-cd
+
–
1
votes
1
answer
1277
MadeEasy Workbook: Computer Networks - Network Flow
If two stations A and B uses copper twisted pair cable having capacity 200 bits/sec. if A transmitted 20 frames to B each of size 50 bits, Assume RTT is neglected. What is the time (in Sec) required to transmit the single frame from A to B if pipelining has been used?
If two stations A and B uses copper twisted pair cable having capacity 200 bits/sec. if A transmitted 20 frames to B each of size 50 bits, Assume RTT is neglected. What i...
Sumit Singh Chauhan
830
views
Sumit Singh Chauhan
asked
Aug 6, 2018
Computer Networks
computer-networks
network-flow
made-easy-booklet
+
–
0
votes
1
answer
1278
Made Easy Workbook - Computer Network
In a Hub based lan system collision is detected by a) Hub b) Transmitting node c) Hub and Transmitting Node d) Recieving Node
In a Hub based lan system collision is detected bya) Hubb) Transmitting nodec) Hub and Transmitting Noded) Recieving Node
Sumit Singh Chauhan
908
views
Sumit Singh Chauhan
asked
Aug 6, 2018
Computer Networks
computer-networks
+
–
1
votes
1
answer
1279
MadeEasy Workbook: Computer Networks - Network Communication
What signal-to-noise ratio is needed to put a T1 carrier on a 50-kHz line?
What signal-to-noise ratio is needed to put a T1 carrier on a 50-kHz line?
Sumit Singh Chauhan
2.4k
views
Sumit Singh Chauhan
asked
Aug 6, 2018
Computer Networks
computer-networks
communication
made-easy-booklet
+
–
2
votes
1
answer
1280
RPSC Programmer Exam 2013
A local area network operates Ethernet with CSMA/CD mechanism and runs at a transmission rate of 8 Mbps and a one-way signal propagation time of 25 microseconds. How long has a station to wait before trying to access the channel again, after experiencing 5 successive collisions? 1. 125 microseconds. 2. 625 microseconds 3. 800 microseconds 4. 1600 microseconds.
A local area network operates Ethernet with CSMA/CD mechanism and runs at a transmission rate of 8 Mbps and a one-way signal propagation time of 25 microseconds. How long...
irfan119
700
views
irfan119
asked
Aug 5, 2018
Computer Networks
computer-networks
csma-cd
+
–
0
votes
0
answers
1281
#KUROSE computer network
While reading Kurose book of Computer Network, application layer, about throughput i came across a sentence "There’s an adage that says that one cannot be too rich, too thin, or have too much throughput!" Could anybody please suggest what exactly it means and why can't we have /what is the disadvantage of very high throughput?
While reading Kurose book of Computer Network, application layer, about throughput i came across a sentence"There’san adage that says that one cannot be too rich, too t...
akshat sinha
329
views
akshat sinha
asked
Aug 4, 2018
Computer Networks
computer-networks
throughput
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–
2
votes
3
answers
1282
Sliding window protocol
Station A needs to send a message consisting of 10 packets to station B using a sliding window of size 4. All packets are ready and can be transferred immediately.Selective repeat and GBN are used at 2 different times and every 5th packet get lost for ... of transmissions that A has to make in selective repeat and GBN respectively to ensure safe delivery to B. Then x+y= ?
Station A needs to send a message consisting of 10 packets to station B using a sliding window of size 4. All packets are ready and can be transferred immediately.Selecti...
Sumit Singh Chauhan
6.4k
views
Sumit Singh Chauhan
asked
Aug 2, 2018
Computer Networks
computer-networks
sliding-window
go-back-n
selective-repeat
+
–
2
votes
1
answer
1283
Data Link Layer
What is the channel capacity of printer (in bps) with a 400Hz bandwidth and a signal to noise ratio is 7 dB?
What is the channel capacity of printer (in bps) with a 400Hz bandwidth and a signal to noise ratio is 7 dB?
Sumit Singh Chauhan
1.8k
views
Sumit Singh Chauhan
asked
Aug 2, 2018
Computer Networks
computer-networks
data-link-layer
signal-to-noise
+
–
1
votes
2
answers
1284
Data Link Layer
The distance b/w two microwave towers, with the link capacity 100 Mbps, is 24 km and the speed of the signal is 3 x 10^8 m/sec. If the frame size is 16 Kb in the stop-and-wait protocol, what is the approximate link utilization? Assume that the ACK packets are negligible in the size and there are no errors during communication. a. 33% b. 50% c. 66% d. 75%
The distance b/w two microwave towers, with the link capacity 100 Mbps, is 24 km and the speed of the signal is 3 x 10^8 m/sec. If the frame size is 16 Kb in the stop-and...
Sumit Singh Chauhan
1.6k
views
Sumit Singh Chauhan
asked
Aug 2, 2018
Computer Networks
computer-networks
data-link-layer
link-utilisation
+
–
1
votes
0
answers
1285
Supernetting
I have doubt that how to merge the ip addresses into single one using Aggregation. Please discuss the approach Like I have ip addresses 192.24.0.0/21,192.24.16.0/20,192.24.8.0/22 It's merged into single one ip 192.24.0.0/19 How, I am little confused with the approach help me out here :)
I have doubt that how to merge the ip addresses into single one using Aggregation. Please discuss the approach Like I have ip addresses 192.24.0.0/21,192.24.16.0/20,192.2...
Na462
640
views
Na462
asked
Aug 1, 2018
Computer Networks
computer-networks
network
+
–
0
votes
1
answer
1286
Data Link Layer
The IEEE 802 project provides the data link layer into two sublayers. Which sublayer of the data link layer communicates directly with the NIC? a) Logical Link Control Sublayer b) Logical Access Control Sublayer c) Medium Access Control Sublayer d) Data Access Control Sublayer
The IEEE 802 project provides the data link layer into two sublayers. Which sublayer of the data link layer communicates directly with the NIC?a) Logical Link Control Sub...
Sumit Singh Chauhan
1.8k
views
Sumit Singh Chauhan
asked
Jul 31, 2018
Computer Networks
ieee-802
data-link-layer
computer-networks
+
–
0
votes
0
answers
1287
IP Addressing
An IP router implementing CIDR services a packet with address 131.23.151.76. The routers routing table has the following entries: Prefix Output Interface Identifier 131.16.0.0/12 3 131.28.0.0/14 5 131.19.0.0/16 2 131.22.0.0/15 1 The identifier of the output interface on which this packet will be forwarded is______________
An IP router implementing CIDR services a packet with address 131.23.151.76. The routers routing table has the following entries:PrefixOutput Interface Identifier131.16.0...
Sumit Singh Chauhan
408
views
Sumit Singh Chauhan
asked
Jul 30, 2018
Computer Networks
computer-networks
ip-addressing
+
–
0
votes
0
answers
1288
Networks - Access Control
Consider the following statements: S1 : Token bucket shapes bursty traffic into fixed-rate traffic by averaging the data rate. S2 : Leaky buckets are more restrictive compared to token bucket. S3 : A choke packet is a congestion-control mechanism in which a packet is sent ... of congestion. Which of the given statements are false? a. S1 b. S2 c. S1 & S2 d. all of these
Consider the following statements:S1 : Token bucket shapes bursty traffic into fixed-rate traffic by averaging the data rate.S2 : Leaky buckets are more restrictive compa...
Concerned Geek
189
views
Concerned Geek
asked
Jul 27, 2018
Computer Networks
computer-networks
+
–
0
votes
1
answer
1289
packet switching
Consider the store and forward packet switched network where host A and B are connected via 2 routers R1 and R2 . Assume Transmission time to be 1ms and Propagation time of link to be 5ms. If a message is divided into 6 packets of equal length then total time to transfer message is _________ ?
Consider the store and forward packet switched network where host A and B are connected via 2 routers R1 and R2 . Assume Transmission time to be 1ms and Propagation time ...
Lone Wolf
1.4k
views
Lone Wolf
asked
Jul 26, 2018
Computer Networks
network-switching
computer-networks
pipelining
+
–
0
votes
0
answers
1290
Syllabus Doubt
What exactly to study in IEEE 802.11 Wireless medium for GATE 2019 Following Topics are there in tanenbaum which is the book i am refering. 1.IEEE 802.11 Architecture and Protocol stack 2. The 802.11 Physical layer 3. The 802.11 MAC Sublayer Protocol 4. The ... vary vast i dont know exactly what to study in GATE 2018 syllabus its wriiten only Basics of Wifi. Help me out here Please.
What exactly to study in IEEE 802.11 Wireless medium for GATE 2019Following Topics are there in tanenbaum which is the book i am refering.1.IEEE 802.11 Architecture and P...
Na462
389
views
Na462
asked
Jul 24, 2018
Computer Networks
syllabus
computer-networks
+
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