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Recent questions tagged tbb-cn-1
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1
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Test by Bikram | Computer Networks | Test 1 | Question: 30
The bandwidth in a CSMA/CD network is $10$ Mbps. The minimum frame size required in the network when RTT is $384$ microsecond _______ in Bytes.
Bikram
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in
Computer Networks
Nov 26, 2016
by
Bikram
519
views
tbb-cn-1
numerical-answers
1
vote
1
answer
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Test by Bikram | Computer Networks | Test 1 | Question: 29
A selective repeat ARQ uses a window size of $26$ to send the data. The number of bits needed to define the sequence number is _____.
Bikram
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in
Computer Networks
Nov 26, 2016
by
Bikram
410
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tbb-cn-1
numerical-answers
2
votes
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Test by Bikram | Computer Networks | Test 1 | Question: 28
Which among the following services is provided by the transport layer? Recovery from message loss. End to end delivery of individual messages. Correct order message delivery. All of the above.
Bikram
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in
Computer Networks
Nov 26, 2016
by
Bikram
722
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tbb-cn-1
transport-layer
6
votes
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Test by Bikram | Computer Networks | Test 1 | Question: 27
A sliding window protocol uses Selective Repeat. The sender sliding window size is $32$. After receiving the first $100$ frames, the acknowledgement number that is piggybacked by the receiver along with data frame is _______.
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
1.9k
views
tbb-cn-1
numerical-answers
8
votes
2
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Test by Bikram | Computer Networks | Test 1 | Question: 26
Consider a sliding window protocol that uses Selective Repeat, the sender sliding window size is $32$. The sequence number of the frame to be sent after sending $200$ frames ___________
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
859
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tbb-cn-1
numerical-answers
2
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Test by Bikram | Computer Networks | Test 1 | Question: 25
A $3000$ km long trunk operates at $1.536\times 10^6$ bps and is used to transmit $64$ byte frames using sliding window protocol. If the propagation speed is $6$ microseconds/km then the number of bits needed for the sequence number for maximum efficiency is _______
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
1.3k
views
tbb-cn-1
numerical-answers
sliding-window
1
vote
1
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Test by Bikram | Computer Networks | Test 1 | Question: 24
... a-1,b-4, c-3,d-2 b-1,a-4, c-3,d-2 a-1,c-4, b-3,d-2 d-1,b-4, a-3,c-2
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
237
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tbb-cn-1
1
vote
1
answer
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Test by Bikram | Computer Networks | Test 1 | Question: 23
The bandwidth in a Stop n Wait ARQ is $1$ Gbps and $1$ bit delay to make round trip time $30$ microseconds, if data frames are $2000$ bits in length then the link is utilized in __________ percentage.
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
984
views
tbb-cn-1
numerical-answers
2
votes
1
answer
9
Test by Bikram | Computer Networks | Test 1 | Question: 22
A TCP connection is transferring $6000$ bytes where the first byte is numbered $10010.$ If data is sent in five segments with the first four segments carrying $1000$ bytes and the last segment carrying $2000$ bytes then number of the last byte sent is ______
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
707
views
tbb-cn-1
numerical-answers
tcp
1
vote
3
answers
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Test by Bikram | Computer Networks | Test 1 | Question: 21
Let the number of bits used to represent the frame sequence number is $x$ then the total number of frames in the sliding window can be send from sender side using Go Back $N$ is : $1$ $2x$ $2x - 1$ $2(x - 1)$
Bikram
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in
Computer Networks
Nov 26, 2016
by
Bikram
449
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tbb-cn-1
2
votes
2
answers
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Test by Bikram | Computer Networks | Test 1 | Question: 20
Two hosts $A$ and $B$ are connected via a Router $R$ with two links $L_1$ and $L_2.$ Each link is $125m$ long and has a bandwidth of $109 \;bps.$ If router queuing delay is $5$ microsec and propagation speed is $250,000$ km/sec the total transfer delay of $1$ kB packet from $A$ to $B$ is _______ microsec
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
1.1k
views
tbb-cn-1
numerical-answers
routing
4
votes
2
answers
12
Test by Bikram | Computer Networks | Test 1 | Question: 19
A $20$ kbps satellite link has propagation delay of $300$ ms , transmitter use Go Back $10$ ARQ scheme, if each frame is $50$ bytes long then the maximum data rate is ________ kbps
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
823
views
tbb-cn-1
numerical-answers
0
votes
1
answer
13
Test by Bikram | Computer Networks | Test 1 | Question: 18
Number of subnets can be formed by using the subnet mask $255.255.248.0$ in a class B network _________
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
391
views
tbb-cn-1
numerical-answers
3
votes
2
answers
14
Test by Bikram | Computer Networks | Test 1 | Question: 17
A message bit stream is $101101101$, the bit pattern will be if message is transmitted with bit stuffing and a flag bit of $0111$___________
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
603
views
tbb-cn-1
numerical-answers
6
votes
2
answers
15
Test by Bikram | Computer Networks | Test 1 | Question: 16
In a token bucket network transmission spreed is $20^*(10^6)$ bps and maximum rate can only be sent for at most $10$ sec at a time, and at most $150$ Mb can be sent over any $15$ sec window, then the value for token input rate is _________ mbps
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
1.2k
views
tbb-cn-1
numerical-answers
1
vote
1
answer
16
Test by Bikram | Computer Networks | Test 1 | Question: 15
A LAN operates Ethernet with CSMA/CD mechanism runs at a transmission rate of 8 Mbps and one way signal propagation time is 25 microsecond, the minimum transmitted frame length is ________ bits
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
269
views
tbb-cn-1
numerical-answers
1
vote
1
answer
17
Test by Bikram | Computer Networks | Test 1 | Question: 14
In a class B network subnet mask for $200$ subnets each with $220$ systems will be $255.255.255.0$ $255.255.0.0$ $255.255.224.0$ $255.0.0.0$
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
474
views
tbb-cn-1
subnetting
1
vote
1
answer
18
Test by Bikram | Computer Networks | Test 1 | Question: 13
Which parameter can be used by a firewall to decide whether to forward or drop packets? source ip address & destination ip address tcp/udp source and destination port number tcp SYN and ACK bits all of these
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
452
views
tbb-cn-1
5
votes
2
answers
19
Test by Bikram | Computer Networks | Test 1 | Question: 12
Sanjay is looking for a file from the file server for his word processing application, which layer is responsible for this function? Presentation Transport Network Session
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
733
views
tbb-cn-1
4
votes
1
answer
20
Test by Bikram | Computer Networks | Test 1 | Question: 11
An organization with a class C IP address of $195.37.5.0$ wish to divide the network into different sub networks, the subnet mask is 255.255.255.192. Which one among these is not a broadcast address in any of the sub network? $195.37.5.127$ $195.37.5.191$ $195.37.5.31$ $195.37.5.255$
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
414
views
tbb-cn-1
1
vote
1
answer
21
Test by Bikram | Computer Networks | Test 1 | Question: 10
Symmetric key algorithm is same as: RSA encryption Public key encryption Secret key encryption Secret hash encryption
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
304
views
tbb-cn-1
3
votes
0
answers
22
Test by Bikram | Computer Networks | Test 1 | Question: 9
Internet address always have at least: A country name or organization type Internet service provider's name Name of organization Name of individual Type of organization ii, iii,iv i, iii i,ii,iii ii,iii,iv,v
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
568
views
tbb-cn-1
2
votes
3
answers
23
Test by Bikram | Computer Networks | Test 1 | Question: 8
The message $11011011$ should be transmitted using CRC polynomial $x3+x+1$, to protect it from errors that message will be transmitted as ________
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
829
views
tbb-cn-1
numerical-answers
4
votes
1
answer
24
Test by Bikram | Computer Networks | Test 1 | Question: 7
Consider private key crypto-system has $3$ keys, $3$ plain-texts and $4$ cipher-texts: $K=\{ k1,k2,k3 \}$ $M=\{m1, m2,m3 \}$ $C=\{c1,c2,c3,c4 \}$ In a valid encryption table find the key that maps two different messages to same cipher text: k1 k2 k3 No key can map
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
483
views
tbb-cn-1
6
votes
1
answer
25
Test by Bikram | Computer Networks | Test 1 | Question: 6
IP address of a particular class B host is $152.45.32.14$, what is the broadcast address of the subnet if the subnet mask is $255.255.240.0$? $152.45.47.255$ $152.45.255.255$ $152.45.53.14$ $152.45.47.256$
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
751
views
tbb-cn-1
1
vote
1
answer
26
Test by Bikram | Computer Networks | Test 1 | Question: 5
A class C network is sub divided into subnets with $3$ bit subnet number, the maximum number of available hosts in each sub network is __________
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
474
views
tbb-cn-1
numerical-answers
3
votes
1
answer
27
Test by Bikram | Computer Networks | Test 1 | Question: 4
Routers can be configured using several sources, which among these can not be used for Router Configuration? Removable media Console port TFTP server Virtual terminals
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
670
views
tbb-cn-1
3
votes
1
answer
28
Test by Bikram | Computer Networks | Test 1 | Question: 3
Let the source has sent four TCP segments to Destination with the sequence numbers $50, \ 74, \ 97,\ 120$ ($1$st, $2$nd, $3$rd and $4$th segment) if the first and fourth segments arrive at destination successfully then the negative acknowledgement that destination sends to source is _______
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
668
views
tbb-cn-1
numerical-answers
1
vote
1
answer
29
Test by Bikram | Computer Networks | Test 1 | Question: 2
A CRC code use the generator polynomial $x6+x4+x+1$ and it has $10$ message bits, what is the redundant check bits appended to the following message at sender side $1011001011$? $000001$ $000011$ $000000$ $110000$
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
310
views
tbb-cn-1
4
votes
3
answers
30
Test by Bikram | Computer Networks | Test 1 | Question: 1
A class B address has the subnet mask of $255.255.224.0$. what will be the IP address of the second host in the second sub network of the main network address $132.55.0.0$? $132.55.0.1$ $132.55.32.2$ $132.55.64.1$ $132.55.64.2$
Bikram
asked
in
Computer Networks
Nov 26, 2016
by
Bikram
1.0k
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tbb-cn-1
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