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Search results for computer-networks
29
votes
2
answers
21
GATE CSE 2020 | Question: 38
An organization requires a range of IP address to assign one to each of its $1500$ computers. The organization has approached an Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space $202.61.0.0/17$. The ... $\text{III}$ only $\text{III}$ and $\text{IV}$ only $\text{I}$ and $\text{IV}$ only
An organization requires a range of IP address to assign one to each of its $1500$ computers. The organization has approached an Internet Service Provider (ISP) for this ...
Arjun
24.2k
views
Arjun
asked
Feb 12, 2020
Computer Networks
gatecse-2020
computer-networks
subnetting
2-marks
+
–
58
votes
7
answers
22
GATE CSE 2017 Set 1 | Question: 45
The values of parameters for the Stop-and-Wait ARQ protocol are as given below: Bit rate of the transmission channel $= 1$ Mbps. Propagation delay from sender to receiver $= 0.75$ ms. Time to process a frame $= 0.25$ ms. Number ... (expressed in percentage) of the Stop-and-Wait ARQ protocol for the above parameters is _____________ (correct to $2$ decimal places).
The values of parameters for the Stop-and-Wait ARQ protocol are as given below:Bit rate of the transmission channel $= 1$ Mbps.Propagation delay from sender to receiver $...
Arjun
32.6k
views
Arjun
asked
Feb 14, 2017
Computer Networks
gatecse-2017-set1
computer-networks
stop-and-wait
numerical-answers
normal
+
–
79
votes
11
answers
23
GATE CSE 2014 Set 3 | Question: 27
Every host in an $\textsf{IPv4}$ network has a $1\text{-second}$ resolution real-time clock with battery backup. Each host needs to generate up to $1000$ ... globally unique ID for this purpose. After what period (in seconds) will the identifiers generated by a host wrap around?
Every host in an $\textsf{IPv4}$ network has a $1\text{-second}$ resolution real-time clock with battery backup. Each host needs to generate up to $1000$ unique identifie...
go_editor
21.5k
views
go_editor
asked
Sep 28, 2014
Computer Networks
gatecse-2014-set3
computer-networks
ip-addressing
numerical-answers
normal
+
–
34
votes
9
answers
24
GATE CSE 2008 | Question: 58
A computer on a $10\text{Mbps}$ network is regulated by a token bucket. The token bucket is filled at a rate of $2\text{Mbps}$. It is initially filled to capacity with $16\text{Megabits}$. What is the maximum duration for which the computer can transmit at the full $10\text{Mbps}$? $1.6$ seconds $2$ seconds $5$ seconds $8$ seconds
A computer on a $10\text{Mbps}$ network is regulated by a token bucket. The token bucket is filled at a rate of $2\text{Mbps}$. It is initially filled to capacity with $1...
Kathleen
24.7k
views
Kathleen
asked
Sep 12, 2014
Computer Networks
gatecse-2008
computer-networks
token-bucket
+
–
76
votes
9
answers
25
GATE CSE 2015 Set 2 | Question: 52
$\text{Host A}$ sends a $\text{UDP}$ datagram containing $8880\text{ bytes}$ of user data to $\text{host B}$ over an $\text{Ethernet LAN}.$ Ethernet frames may carry data up to $1500\text{ bytes (i.e. MTU = 1500 bytes)}.$ Size of $\text{UDP}$ ... be the contents of offset field in the last fragment? $6$ and $925$ $6$ and $7400$ $7$ and $1110$ $7$ and $8880$
$\text{Host A}$ sends a $\text{UDP}$ datagram containing $8880\text{ bytes}$ of user data to $\text{host B}$ over an $\text{Ethernet LAN}.$ Ethernet frames may carry data...
go_editor
25.4k
views
go_editor
asked
Feb 13, 2015
Computer Networks
gatecse-2015-set2
computer-networks
ip-packet
normal
+
–
43
votes
8
answers
26
GATE CSE 2018 | Question: 54
Consider an IP packet with a length of $4,500\;\text{bytes}$ that includes a $20\text{-byte}\;\textsf{IPv4}$ header ans $40\text{-byte}$ TCP header. The packet is forwarded to an $\textsf{IPv4}$ router that supports a ... that the fragmentation offset value stored in the first fragment is $0$. The fragmentation offset value stored in the third fragment is ________.
Consider an IP packet with a length of $4,500\;\text{bytes}$ that includes a $20\text{-byte}\;\textsf{IPv4}$ header ans $40\text{-byte}$ TCP header. The packet is forward...
gatecse
18.9k
views
gatecse
asked
Feb 14, 2018
Computer Networks
gatecse-2018
computer-networks
ip-addressing
numerical-answers
2-marks
+
–
57
votes
6
answers
27
GATE CSE 2011 | Question: 53
Consider a network with five nodes, $N1$ to $N5$, as shown as below. The network uses a Distance Vector Routing protocol. Once the routes have been stabilized, the distance vectors at different nodes are as follows. N1: $(0, 1, 7, 8, 4)$ ... the NEXT ROUND of update, what will be the cost to $N1$ in the distance vector of $N3$ ? $3$ $9$ $10$ $\infty$
Consider a network with five nodes, $N1$ to $N5$, as shown as below.The network uses a Distance Vector Routing protocol. Once the routes have been stabilized, the distanc...
go_editor
23.4k
views
go_editor
asked
Apr 21, 2016
Computer Networks
gatecse-2011
computer-networks
routing
distance-vector-routing
normal
+
–
77
votes
6
answers
28
GATE IT 2008 | Question: 64
A $1\;\text{Mbps}$ satellite link connects two ground stations. The altitude of the satellite is $36,504\;\text{km}$ and speed of the signal is $3 \times 10^{8}\;\text{m/s}.$ What should be the packet size for a channel utilization of $25\%$ for ... there are no errors during communication. $120\;\text{bytes}$ $60\;\text{bytes}$ $240\;\text{bytes}$ $90\;\text{bytes}$
A $1\;\text{Mbps}$ satellite link connects two ground stations. The altitude of the satellite is $36,504\;\text{km}$ and speed of the signal is $3 \times 10^{8}\;\text{m/...
Ishrat Jahan
24.5k
views
Ishrat Jahan
asked
Oct 28, 2014
Computer Networks
gateit-2008
computer-networks
sliding-window
normal
+
–
41
votes
6
answers
29
GATE CSE 2014 Set 1 | Question: 28
Consider a selective repeat sliding window protocol that uses a frame size of $1$ $\text{KB}$ to send data on a $1.5$ $\text{Mbps}$ link with a one-way latency of $50$ $\text{msec}$. To achieve a link utilization of $60\%$, the minimum number of bits required to represent the sequence number field is ________.
Consider a selective repeat sliding window protocol that uses a frame size of $1$ $\text{KB}$ to send data on a $1.5$ $\text{Mbps}$ link with a one-way latency of $50$ $\...
go_editor
26.9k
views
go_editor
asked
Sep 26, 2014
Computer Networks
gatecse-2014-set1
computer-networks
sliding-window
numerical-answers
normal
+
–
86
votes
7
answers
30
GATE CSE 2009 | Question: 47
While opening a $TCP$ connection, the initial sequence number is to be derived using a time-of-day (ToD) clock that keeps running even when the host is down. The low order $32$ bits of the counter of the ToD clock is to be used for the initial sequence numbers ... sequence numbers used for packets of a connection can increase? $0.015$/s $0.064$/s $0.135$/s $0.327$/s
While opening a $TCP$ connection, the initial sequence number is to be derived using a time-of-day (ToD) clock that keeps running even when the host is down. The low orde...
Kathleen
25.2k
views
Kathleen
asked
Sep 22, 2014
Computer Networks
gatecse-2009
computer-networks
tcp
difficult
ambiguous
+
–
64
votes
9
answers
31
GATE CSE 2012 | Question: 34, ISRO-DEC2017-32
An Internet Service Provider (ISP) has the following chunk of CIDR-based IP addresses available with it: $245.248.128.0/20$. The ISP wants to give half of this chunk of addresses to Organization $A$, and a quarter to Organization $B$, while retaining the remaining ... $245.248.136.0/24 \text{ and } 245.248.132.0/21$
An Internet Service Provider (ISP) has the following chunk of CIDR-based IP addresses available with it: $245.248.128.0/20$. The ISP wants to give half of this chunk of a...
gatecse
29.8k
views
gatecse
asked
Sep 26, 2014
Computer Networks
gatecse-2012
computer-networks
subnetting
normal
isrodec2017
+
–
78
votes
7
answers
32
GATE CSE 2003 | Question: 84
Host $A$ is sending data to host $B$ over a full duplex link. $A$ and $B$ are using the sliding window protocol for flow control. The send and receive window sizes are $5$ packets each. Data packets (sent only from $A$ to $B$) are all $1000$ bytes long and the ... ? $7.69 \times 10^6$ Bps $11.11 \times 10^6$ Bps $12.33 \times 10^6$ Bps $15.00 \times 10^6$ Bps
Host $A$ is sending data to host $B$ over a full duplex link. $A$ and $B$ are using the sliding window protocol for flow control. The send and receive window sizes are $5...
Kathleen
27.7k
views
Kathleen
asked
Sep 17, 2014
Computer Networks
gatecse-2003
computer-networks
sliding-window
normal
+
–
29
votes
5
answers
33
GATE CSE 2022 | Question: 45
Consider routing table of an organization's router shown below: ... of the subnets in the routing table? $12.20.164.0/20$ $12.20.164.0/22$ $12.20.164.0/21$ $12.20.168.0/22$
Consider routing table of an organization’s router shown below:$$\begin{array} {|l|l|l|} \hline \text{Subnet Number} & \text{Subnet Mask} & \text{Next Hop} \\\hline 12....
Arjun
15.1k
views
Arjun
asked
Feb 15, 2022
Computer Networks
gatecse-2022
computer-networks
subnetting
multiple-selects
2-marks
+
–
53
votes
5
answers
34
GATE CSE 2006 | Question: 82
Consider the diagram shown below where a number of LANs are connected by (transparent) bridges. In order to avoid packets looping through circuits in the graph, the bridges organize themselves in a spanning tree. First, the root bridge is identified as the bridge with the least serial number. ... $\text{B1, B5, B2, B3, B4}$ $\text{B1, B3, B4, B5, B2}$
Consider the diagram shown below where a number of LANs are connected by (transparent) bridges. In order to avoid packets looping through circuits in the graph, the bridg...
Rucha Shelke
22.7k
views
Rucha Shelke
asked
Sep 26, 2014
Computer Networks
gatecse-2006
computer-networks
bridges
normal
+
–
64
votes
6
answers
35
GATE CSE 2009 | Question: 48
Let $G(x)$ be the generator polynomial used for CRC checking. What is the condition that should be satisfied by $G(x)$ to detect odd number of bits in error? $G(x)$ contains more than two terms $G(x)$ does not divide $1+x^k$, for any $k$ not exceeding the frame length $1+x$ is a factor of $G(x)$ $G(x)$ has an odd number of terms.
Let $G(x)$ be the generator polynomial used for CRC checking. What is the condition that should be satisfied by $G(x)$ to detect odd number of bits in error?$G(x)$ contai...
Kathleen
29.0k
views
Kathleen
asked
Sep 22, 2014
Computer Networks
gatecse-2009
computer-networks
error-detection
normal
+
–
70
votes
5
answers
36
GATE CSE 2015 Set 2 | Question: 34
Assume that the bandwidth for a $\text{TCP}$ connection is $1048560$ bits/sec. Let $\alpha$ be the value of RTT in milliseconds (rounded off to the nearest integer) after which the $\text{TCP}$ window scale option is needed. Let $\beta$ be the maximum possible ... $^{16}$ $500$ milliseconds, $65535$ $\times $2$^{14}$ $500$ milliseconds, $65535$ $\times $2$^{16}$
Assume that the bandwidth for a $\text{TCP}$ connection is $1048560$ bits/sec. Let $\alpha$ be the value of RTT in milliseconds (rounded off to the nearest integer) afte...
go_editor
27.6k
views
go_editor
asked
Feb 12, 2015
Computer Networks
gatecse-2015-set2
computer-networks
difficult
tcp
+
–
48
votes
7
answers
37
GATE CSE 2016 Set 1 | Question: 25
Which of the following is/are example(s) of stateful application layer protocol? $\textsf{HTTP}$ $\textsf{FTP}$ $\textsf{TCP}$ $\textsf{POP3}$ $\text{(i)}$ and $\text{(ii)}$ only $\text{(ii)}$ and $\text{(iii)}$ only $\text{(ii)}$ and $\text{(iv)}$ only $\text{(iv)}$ only
Which of the following is/are example(s) of stateful application layer protocol?$\textsf{HTTP}$$\textsf{FTP}$$\textsf{TCP}$$\textsf{POP3}$$\text{(i)}$ and $\text{(ii)}$ o...
Sandeep Singh
18.8k
views
Sandeep Singh
asked
Feb 12, 2016
Computer Networks
gatecse-2016-set1
computer-networks
application-layer-protocols
normal
+
–
9
votes
7
answers
38
GATE CSE 2023 | Question: 7
Suppose two hosts are connected by a point-to-point link and they are configured to use $\textsf{Stop-and-Wait}$ protocol for reliable data transfer. Identify in which one of the following scenarios, the utilization of the ... Longer link length and higher transmission rate Shorter link length and lower transmission rate Shorter link length and higher transmission rate
Suppose two hosts are connected by a point-to-point link and they are configured to use $\textsf{Stop-and-Wait}$ protocol for reliable data transfer. Identify in which on...
admin
12.0k
views
admin
asked
Feb 15, 2023
Computer Networks
gatecse-2023
computer-networks
stop-and-wait
1-mark
+
–
36
votes
6
answers
39
GATE CSE 2015 Set 1 | Question: 53
Suppose that the stop-and-wait protocol is used on a link with a bit rate of $64$ $\text{kilobits}$ per second and $20$ $\text{milliseconds}$ propagation delay. Assume that the transmission time for the acknowledgment and the processing time ... . Then the minimum frame size in bytes to achieve a link utilization of at least $50$ $\text{%}$ is_________________.
Suppose that the stop-and-wait protocol is used on a link with a bit rate of $64$ $\text{kilobits}$ per second and $20$ $\text{milliseconds}$ propagation delay. Assume th...
makhdoom ghaya
26.1k
views
makhdoom ghaya
asked
Feb 13, 2015
Computer Networks
gatecse-2015-set1
computer-networks
stop-and-wait
normal
numerical-answers
+
–
8
votes
4
answers
40
GATE CSE 2023 | Question: 55
The forwarding table of a router is shown below. ... to a destination address $200.150 .68 .118$ arrives at the router. It will be forwarded to the interface with $\text{ID}$ __________.
The forwarding table of a router is shown below.$$\begin{array}{|l|l|c|}\hline \textbf{Subnet Number} & \textbf{Subnet Mask} & \textbf{Interface ID} \\\hline 200.150 .0 ....
admin
11.8k
views
admin
asked
Feb 15, 2023
Computer Networks
gatecse-2023
computer-networks
subnetting
numerical-answers
2-marks
+
–
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