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Search results for computer-networks
126
votes
18
answers
1
GATE CSE 2009 | Question: 57, ISRO2016-75
Frames of $\text{1000 bits}$ are sent over a $10^6$ $\text{bps}$ duplex link between two hosts. The propagation time is $\text{25 ms}$. Frames are to be transmitted into this link to maximally pack them in transit (within the link). What is the ... ? Assume that no time gap needs to be given between transmission of two frames. $I=2$ $I=3$ $I=4$ $I=5$
Frames of $\text{1000 bits}$ are sent over a $10^6$ $\text{bps}$ duplex link between two hosts. The propagation time is $\text{25 ms}$. Frames are to be transmitted into ...
Kathleen
48.1k
views
Kathleen
asked
Sep 22, 2014
Computer Networks
gatecse-2009
computer-networks
sliding-window
normal
isro2016
+
–
100
votes
21
answers
2
GATE CSE 2016 Set 1 | Question: 54
For a host machine that uses the token bucket algorithm for congestion control, the token bucket has a capacity of $1$ $\text{megabyte}$ and the maximum output rate is $20$ $\text{megabytes}$ per $\text{second}$. Tokens arrive at a rate to ... to send $12$ $\text{megabytes}$ of data. The minimum time required to transmit the data is _____________ $\text{seconds}$.
For a host machine that uses the token bucket algorithm for congestion control, the token bucket has a capacity of $1$ $\text{megabyte}$ and the maximum output rate is $2...
Sandeep Singh
41.7k
views
Sandeep Singh
asked
Feb 12, 2016
Computer Networks
gatecse-2016-set1
computer-networks
token-bucket
normal
numerical-answers
+
–
77
votes
8
answers
3
GATE CSE 2005 | Question: 74
Suppose the round trip propagation delay for a $10\text{ Mbps}$ Ethernet having $48\text{-bit}$ jamming signal is $46.4\ \mu s$. The minimum frame size is: $94$ $416$ $464$ $512$
Suppose the round trip propagation delay for a $10\text{ Mbps}$ Ethernet having $48\text{-bit}$ jamming signal is $46.4\ \mu s$. The minimum frame size is:$94$$416$$464$$...
Kathleen
48.3k
views
Kathleen
asked
Sep 22, 2014
Computer Networks
gatecse-2005
computer-networks
mac-protocol
ethernet
+
–
47
votes
8
answers
4
GATE CSE 2006 | Question: 46
Station $A$ needs to send a message consisting of $9$ packets to Station $B$ using a sliding window (window size $3$) and go-back-$n$ error control strategy. All packets are ready and immediately available for transmission. If every $5$th packet that $A$ ... what is the number of packets that $A$ will transmit for sending the message to $B$? $12$ $14$ $16$ $18$
Station $A$ needs to send a message consisting of $9$ packets to Station $B$ using a sliding window (window size $3$) and go-back-$n$ error control strategy. All packets ...
Rucha Shelke
40.8k
views
Rucha Shelke
asked
Sep 26, 2014
Computer Networks
gatecse-2006
computer-networks
sliding-window
normal
+
–
25
votes
8
answers
5
GATE CSE 2005 | Question: 25
The maximum window size for data transmission using the selective reject protocol with $n\text{-bit}$ frame sequence numbers is: $2^n$ $2^{n-1}$ $2^n-1$ $2^{n-2}$
The maximum window size for data transmission using the selective reject protocol with $n\text{-bit}$ frame sequence numbers is:$2^n$$2^{n-1}$$2^n-1$$2^{n-2}$
Kathleen
38.5k
views
Kathleen
asked
Sep 22, 2014
Computer Networks
gatecse-2005
computer-networks
sliding-window
easy
+
–
106
votes
11
answers
6
GATE CSE 2015 Set 3 | Question: 36
Two hosts are connected via a packet switch with $10^7$ bits per second links. Each link has a propagation delay of $20$ microseconds. The switch begins forwarding a packet $35$ microseconds after it receives the same. If $10000$ bits of ... between the transmission of the first bit of data and the reception of the last bit of the data in microseconds is ______.
Two hosts are connected via a packet switch with $10^7$ bits per second links. Each link has a propagation delay of $20$ microseconds. The switch begins forwarding a pack...
go_editor
32.6k
views
go_editor
asked
Feb 15, 2015
Computer Networks
gatecse-2015-set3
computer-networks
normal
numerical-answers
network-switching
+
–
35
votes
7
answers
7
GATE IT 2006 | Question: 63, ISRO2015-57
A router uses the following routing table: \begin{array}{|l|l|l|} \hline \textbf {Destination} & \textbf { Mask} & \textbf{Interface} \\\hline \text {144.16.0.0} & \text{255.255.0.0} & \text{eth$0$} \\\hline\text { ... address $144.16.68.117$ arrives at the router. On which interface will it be forwarded? eth$0$ eth$1$ eth$2$ eth$3$
A router uses the following routing table:\begin{array}{|l|l|l|} \hline \textbf {Destination} & \textbf { Mask} & \textbf{Interface} \\\hline \text {144.16.0.0} & \text...
Ishrat Jahan
37.6k
views
Ishrat Jahan
asked
Nov 1, 2014
Computer Networks
gateit-2006
computer-networks
subnetting
normal
isro2015
+
–
82
votes
12
answers
8
GATE CSE 2014 Set 1 | Question: 27
Let the size of congestion window of a TCP connection be $32$ KB when a timeout occurs. The round trip time of the connection is $100$ msec and the maximum segment size used is $2$ KB. The time taken (in msec) by the TCP connection to get back to $32$ KB congestion window is _________.
Let the size of congestion window of a TCP connection be $32$ KB when a timeout occurs. The round trip time of the connection is $100$ msec and the maximum segment size u...
go_editor
37.5k
views
go_editor
asked
Sep 26, 2014
Computer Networks
gatecse-2014-set1
computer-networks
tcp
congestion-control
numerical-answers
normal
+
–
70
votes
8
answers
9
GATE CSE 2005 | Question: 73
In a packet switching network, packets are routed from source to destination along a single path having two intermediate nodes. If the message size is $24$ bytes and each packet contains a header of $3$ bytes, then the optimum packet size is: $4$ $6$ $7$ $9$
In a packet switching network, packets are routed from source to destination along a single path having two intermediate nodes. If the message size is $24$ bytes and each...
Kathleen
42.1k
views
Kathleen
asked
Sep 22, 2014
Computer Networks
gatecse-2005
computer-networks
network-switching
normal
+
–
55
votes
6
answers
10
GATE CSE 2003 | Question: 82, ISRO2009-1
The subnet mask for a particular network is $255.255.31.0.$ Which of the following pairs of $\text{IP}$ addresses could belong to this network? $172.57.88.62$ and $172.56.87.23$ $10.35.28.2$ and $10.35.29.4$ $191.203.31.87$ and $191.234.31.88$ $128.8.129.43$ and $128.8.161.55$
The subnet mask for a particular network is $255.255.31.0.$ Which of the following pairs of $\text{IP}$ addresses could belong to this network?$172.57.88.62$ and $172.56....
Kathleen
28.8k
views
Kathleen
asked
Sep 17, 2014
Computer Networks
gatecse-2003
computer-networks
subnetting
normal
isro2009
+
–
74
votes
7
answers
11
GATE CSE 2012 | Question: 45
Consider an instance of TCP's Additive Increase Multiplicative Decrease (AIMD) algorithm where the window size at the start of the slow start phase is $2$ MSS and the threshold at the start of the first transmission is $8$ MSS. Assume that a timeout occurs during ... Find the congestion window size at the end of the tenth transmission. $8$ MSS $14$ MSS $7$ MSS $12$ MSS
Consider an instance of TCP’s Additive Increase Multiplicative Decrease (AIMD) algorithm where the window size at the start of the slow start phase is $2$ MSS and the t...
Arjun
38.1k
views
Arjun
asked
Sep 29, 2014
Computer Networks
gatecse-2012
computer-networks
congestion-control
normal
+
–
87
votes
7
answers
12
GATE CSE 2009 | Question: 58
Frames of $1000\text{ bits}$ are sent over a $10^6$ bps duplex link between two hosts. The propagation time is $25ms$. Frames are to be transmitted into this link to maximally pack them in transit (within the link). Let $I$ be ... before starting transmission of the next frame? (Identify the closest choice ignoring the frame processing time) $16ms$ $18ms$ $20ms$ $22ms$
Frames of $1000\text{ bits}$ are sent over a $10^6$ bps duplex link between two hosts. The propagation time is $25ms$. Frames are to be transmitted into this link to maxi...
go_editor
29.9k
views
go_editor
asked
Apr 23, 2016
Computer Networks
gatecse-2009
computer-networks
sliding-window
normal
+
–
55
votes
12
answers
13
GATE CSE 2006 | Question: 44
Station $A$ uses $32\; \text{byte}$ packets to transmit messages to Station $B$ using a sliding window protocol. The round trip delay between A and $B$ is $80\; \text{milliseconds}$ and the bottleneck bandwidth on the path between $A$ and $B$ is $128\; \text{kbps}$ . What is the optimal window size that $A$ should use? $20$ $40$ $160$ $320$
Station $A$ uses $32\; \text{byte}$ packets to transmit messages to Station $B$ using a sliding window protocol. The round trip delay between A and $B$ is $80\; \text{mil...
Rucha Shelke
26.7k
views
Rucha Shelke
asked
Sep 26, 2014
Computer Networks
gatecse-2006
computer-networks
sliding-window
normal
+
–
60
votes
13
answers
14
GATE CSE 2007 | Question: 67, ISRO2016-72
The address of a class $\text{B}$ host is to be split into subnets with a $6\;\text{-bit}$ subnet number. What is the maximum number of subnets and the maximum number of hosts in each subnet? $62$ subnets and $262142$ hosts. $64$ subnets and $262142$ hosts. $62$ subnets and $1022$ hosts. $64$ subnets and $1024$ hosts.
The address of a class $\text{B}$ host is to be split into subnets with a $6\;\text{-bit}$ subnet number. What is the maximum number of subnets and the maximum number of ...
Kathleen
35.4k
views
Kathleen
asked
Sep 21, 2014
Computer Networks
gatecse-2007
computer-networks
subnetting
easy
isro2016
+
–
58
votes
11
answers
15
GATE CSE 2016 Set 1 | Question: 55
A sender uses the Stop-and-Wait $\text{ARQ}$ protocol for reliable transmission of frames. Frames are of size $1000$ ... $100$ milliseconds. Assuming no frame is lost, the sender throughput is ________ bytes/ second.
A sender uses the Stop-and-Wait $\text{ARQ}$ protocol for reliable transmission of frames. Frames are of size $1000$ bytes and the transmission rate at the sender is $80\...
Sandeep Singh
26.1k
views
Sandeep Singh
asked
Feb 12, 2016
Computer Networks
gatecse-2016-set1
computer-networks
stop-and-wait
normal
numerical-answers
+
–
44
votes
10
answers
16
GATE CSE 2012 | Question: 10
The protocol data unit (PDU) for the application layer in the Internet stack is: Segment Datagram Message Frame
The protocol data unit (PDU) for the application layer in the Internet stack is:SegmentDatagramMessageFrame
gatecse
27.9k
views
gatecse
asked
Aug 5, 2014
Computer Networks
gatecse-2012
computer-networks
application-layer-protocols
easy
+
–
27
votes
5
answers
17
GATE CSE 2005 | Question: 27
An organization has a class $B$ network and wishes to form subnets for $64$ departments. The subnet mask would be: $255.255.0.0$ $255.255.64.0$ $255.255.128.0$ $255.255.252.0$
An organization has a class $B$ network and wishes to form subnets for $64$ departments. The subnet mask would be:$255.255.0.0$$255.255.64.0$$255.255.128.0$$255.255.252.0...
Kathleen
39.6k
views
Kathleen
asked
Sep 22, 2014
Computer Networks
gatecse-2005
computer-networks
subnetting
normal
+
–
69
votes
10
answers
18
GATE IT 2005 | Question: 73
On a TCP connection, current congestion window size is Congestion Window = $4$ KB. The window size advertised by the receiver is Advertise Window = $6$ KB. The last byte sent by the sender is LastByteSent = $10240$ and the last byte acknowledged by ... LastByteAcked = $8192$. The current window size at the sender is: $2048$ bytes $4096$ bytes $6144$ bytes $8192$ bytes
On a TCP connection, current congestion window size is Congestion Window = $4$ KB. The window size advertised by the receiver is Advertise Window = $6$ KB. The last byte ...
Ishrat Jahan
25.9k
views
Ishrat Jahan
asked
Nov 3, 2014
Computer Networks
gateit-2005
computer-networks
congestion-control
normal
+
–
37
votes
9
answers
19
GATE CSE 2018 | Question: 14
Consider the following statements regarding the slow start phase of the TCP congestion control algorithm. Note that cwnd stands for the TCP congestion window and MSS window denotes the Maximum Segments Size: The cwnd increases by $2$ MSS on every successful acknowledgment The cwnd ... true Only $\text{(iv)}$ is true Only $\text{(i)}$ and $\text{(iv)}$ are true
Consider the following statements regarding the slow start phase of the TCP congestion control algorithm. Note that cwnd stands for the TCP congestion window and MSS wind...
gatecse
22.9k
views
gatecse
asked
Feb 14, 2018
Computer Networks
gatecse-2018
computer-networks
tcp
congestion-control
normal
1-mark
+
–
61
votes
7
answers
20
GATE CSE 2010 | Question: 54
Consider a network with $6$ routers $\textbf{R1}$ to $\textbf{R6}$ connected with links having weights as shown in the following diagram. All the routers use the distance vector based routing algorithm to update their routing tables. Each router starts with its ... stabilize, how many links in the network will never be used for carrying any data? $4$ $3$ $2$ $1$
Consider a network with $6$ routers $\textbf{R1}$ to $\textbf{R6}$ connected with links having weights as shown in the following diagram.All the routers use the distance ...
go_editor
23.4k
views
go_editor
asked
Sep 30, 2014
Computer Networks
gatecse-2010
computer-networks
routing
distance-vector-routing
normal
+
–
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