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Questions by iarnav
0
votes
1
answer
21
#CN Application Layer MCQ
Application layer offers _______ service a) End to end b) Process to process c) Both End to end and Process to process d) None of the mentioned
Application layer offers _______ servicea) End to endb) Process to processc) Both End to end and Process to processd) None of the mentioned
2.4k
views
asked
Nov 25, 2018
Computer Networks
computer-networks
application-layer-protocols
computer-networks
application-layer-protocols
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0
votes
1
answer
22
#CN HTTP MCQ
In HTTP, the first line in a request message is called a _______ line; the first line in the response message is called the ________ line.
In HTTP, the first line in a request message is called a _______ line; the first line in the response message is called the ________ line.
744
views
asked
Nov 25, 2018
Computer Networks
computer-networks
+
–
1
votes
1
answer
23
How to solve this series which is in both AP and GP?
how to solve this series:
how to solve this series:
6.3k
views
asked
Nov 24, 2018
2
votes
2
answers
24
#CN Forouzan Error Correction Hamming Code
If the Hamming distance between a dataword and the corresponding codeword is three, there are _____ bits in error. A) 5 B) 4 C) 3 D) none of the above
If the Hamming distance between a dataword and the corresponding codeword is three, there are _____ bits in error.A) 5 B) 4 C) 3 D) none of the above
3.1k
views
asked
Nov 19, 2018
Computer Networks
computer-networks
hamming-code
hamming
distance
error-detection
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0
votes
0
answers
25
#CN Error Detection - How many bit errors can simple parity bit error detection or 1-D parity bit can detect?
How many bit errors can simple parity bit error detection or 1-D parity bit can detect?I'm pretty confused about it - that can I detect only one bit errors or all odd bit...
500
views
asked
Nov 16, 2018
Computer Networks
computer-networks
error-detection
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–
1
votes
1
answer
26
#CN Given are the sequence number field bits, tell the total sequence number possible and SWS simple SWP? (Self Doubt)
Say sequence # field has 5 bits.then what would be the max SWS (sender window size) in case of simple SWP where nothing is mentioned explicitly that the SWP is GBN or SN,...
592
views
asked
Nov 12, 2018
Computer Networks
computer-networks
sliding-window
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–
1
votes
0
answers
27
#CN Given are the sequence number field bits, tell the total sequence number possible and SWS in all SWP? (Self Doubt)
Say sequence # field has 5 bits. So, I know, we have a relation Ws+Wr <= avail seq #So in simple SWP = 2^5 = 32 sequence number and SWS = 32 packets ( is it correct)?in G...
500
views
asked
Nov 11, 2018
Computer Networks
computer-networks
sliding-window
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–
0
votes
1
answer
28
#CN What is the channel utilization for the go-back-N protocol with window size of 7 for the problem 3?
Sender Window Size is 7 and every 3rd packet is lost/corrupted. So, how to find channel utilization!?
2.0k
views
asked
Nov 8, 2018
Computer Networks
computer-networks
sliding-window
go-back-n
stop-and-wait
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–
1
votes
1
answer
29
#CN Stop and Wait ARQ Numerical about finding efficency?
Consider the use of 10 K-bit size frames on a 10 Mbps satellite channel with 270 ms delay. What is the link utilization for stop-and-wait ARQ technique assuming P = 10-3? My doubt - In frame size 10 K-bit, what should you take value of K? i.e K ... / (10 Mbps) = 1 msec Hence, a = 270/1 = 270 Link utilization = 0.999/(1+2*270) ≈0.0018 =0.18%
Consider the use of 10 K-bit size frames on a 10 Mbps satellite channel with 270 ms delay. What is the link utilization for stop-and-wait ARQ technique assuming P = 10-3?...
1.9k
views
asked
Nov 8, 2018
Computer Networks
stop-and-wait
computer-networks
go-back-n
sliding-window
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–
0
votes
0
answers
30
#CN Stop and Wait Retransmission user doubt. (Numerical)
Original question link - https://gateoverflow.in/78987/packet-loss-numerical-in-stop-and-wait I know this question has already been solved by Arjun Sir, but is there any other explanation which can simplify things? In a communication link out of p packets one packet ... of retransmissions for a packet? (A) P/(1-P) (B) P (C) 1/(1-P) (D) 1/P
Original question link - https://gateoverflow.in/78987/packet-loss-numerical-in-stop-and-wait I know this question has already been solved by Arjun Sir, but is there any ...
327
views
asked
Nov 3, 2018
Computer Networks
stop-and-wait
computer-networks
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–
0
votes
1
answer
31
#CN Stop And Wait Numerical Question - Finding Throughput of Receiver?
A sender uses the Stop-and-Wait ARQ protocol for reliable transmission of frames. Frames are of size 1000 bytes and the transmission rate at the sender is 80 Kbps (1 Kbps = 1000 bits/second). Size of an ... -way propagation delay is 100 milliseconds. Assuming no frame is lost, the RECIEVER throughout is ________ bytes/ second.
A sender uses the Stop-and-Wait ARQ protocol for reliable transmission of frames. Frames are of size 1000 bytes and the transmission rate at the sender is 80 Kbps (1 Kbps...
1.2k
views
asked
Nov 3, 2018
Computer Networks
computer-networks
stop-and-wait
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–
0
votes
1
answer
32
#CN Subnetting Self Doubt.
Given Subnet mask is 255.255.31.0 then how can one conclude that The subnet mask 255.255.x.x belongs to class B type(IP address range will be from 128.1.0.1 to 191.255.255.254) I get that from 255.255 N/w id = 16 bits but then how can we write range of ip addresses? @Shaik Brother can you see this?
Given Subnet mask is 255.255.31.0 then how can one conclude that The subnet mask 255.255.x.x belongs to class B type(IP address range will be from 128.1.0.1 to 191.255.2...
455
views
asked
Oct 30, 2018
Computer Networks
subnetting
computer-networks
internet
ip-address
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–
0
votes
0
answers
33
#OS Memory management User Mod Gate 2006 IT Doubt
original question https://gateoverflow.in/3600/gate2006-it-56 Please see the best answer of Arjun Sir. My doubt is for paging method - Given is 2 level paging. For P1 we need 195 pages and which can be accommodated in one PT and same for P2 and ... 2 PT. But in question every process needs one more PT, why? as P1,P2,P3 needs - 2 PT and P4 needs 3PT
original question https://gateoverflow.in/3600/gate2006-it-56Please see the best answer of Arjun Sir.My doubt is for paging method - Given is 2 level paging.For P1 we nee...
429
views
asked
Oct 23, 2018
Operating System
operating-system
users
usermod
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–
3
votes
2
answers
34
#OS Fork () tell the O/P?
A process executes the following segment of code : for(i = 1; i <= n; i++) fork (); fork (); The number of new processes created is
A process executes the following segment of code :for(i = 1; i <= n; i++) fork (); fork ();The number of new processes created is
2.0k
views
asked
Oct 18, 2018
Operating System
fork-system-call
operating-system
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–
1
votes
1
answer
35
#OS Fork () tell the output?
void forkexample() { // child process because return value zero if (fork() == 0) printf("Hello from Child!\n"); // parent process because return value non-zero. else printf("Hello from Parent!\n"); } int main() { forkexample(); return 0; } Please someone explain how things are working?
void forkexample() { // child process because return value zero if (fork() == 0) printf("Hello from Child!\n"); // parent process because return value non-zero. else prin...
832
views
asked
Oct 17, 2018
Operating System
operating-system
fork-system-call
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–
0
votes
1
answer
36
#Interrupts #OS Doubt.
When an interrupt occurs, an operating system can ignore the interrupt? Please tell the answer with reasoning? Thank you!
When an interrupt occurs, an operating system can ignore the interrupt?Please tell the answer with reasoning? Thank you!
529
views
asked
Oct 12, 2018
Operating System
operating-system
interrupts
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–
0
votes
1
answer
37
#Threads #OS True/False statements
for kernel-level threads, a system call can block the entire process. User level threads can be scheduled independently. Kernel level threads are transparent to the user level threads. Which of them is True?
for kernel-level threads, a system call can block the entire process.User level threads can be scheduled independently.Kernel level threads are transparent to the user le...
938
views
asked
Oct 12, 2018
Operating System
threads
operating-system
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–
0
votes
0
answers
38
#OS #COA Disks question regarding bits to find a particular track?
Consider a disk pack with 16 surfaces, 128 tracks per surface and 256 sectors per track. 512 bytes of data are stored in a bit serial manner in a sector. The number of bits required to specify a particular track in the disk are ?
Consider a disk pack with 16 surfaces, 128 tracks per surface and 256 sectors per track. 512 bytes of data are stored in a bit serial manner in a sector. The number of bi...
651
views
asked
Oct 9, 2018
CO and Architecture
co-and-architecture
disk
numerical-answers
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–
0
votes
0
answers
39
#COA User Gate 2013 Disk Question Doubt
Source of question - https://gateoverflow.in/1540/gate2013-29 Consider a hard disk with 16 recording surfaces (0−15) having 16384 cylinders (0−16383) and each cylinder contains 64 sectors (0−63). Data storage capacity in each ... , but couldn't get the reverse engineering thing given in best answer. Someone please simplify and explain this question
Source of question - https://gateoverflow.in/1540/gate2013-29Consider a hard disk with 16 recording surfaces (0−15) having 16384 cylinders (0−16383) and each cylinder...
552
views
asked
Oct 8, 2018
CO and Architecture
usermod
disk
co-and-architecture
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–
0
votes
0
answers
40
How to solve this conversion of cm and meter/second
(3.5cm) / (10 meter/second) How to do this division and I need answer in meter/sec
(3.5cm) / (10 meter/second)How to do this division and I need answer in meter/sec
243
views
asked
Oct 6, 2018
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