Recent questions and answers in Computer Networks

+1 vote

1 answer

1

Made Easy-CBT-2017-Q27

answered 1 hour ago in Computer Networks by nikkey123 (199 points) | 123 views

0 votes

1 answer

2

#bit stuffing

answered 13 hours ago in Computer Networks by stblue Loyal (3k points) | 9 views

0 votes

1 answer

3

UGCNET-june2009-ii-49
The device which connects dissimilar LANs of different topologies using different sets of communication protocols so that information can flow from one to another is called: (A) Router (B) Bridge (C) Gateway (D) Switch

answered 14 hours ago in Computer Networks by Sushant Yadav 1 Junior (591 points) | 12 views

0 votes

0 answers

4

UGCNET-june2009-ii-48
After sending a message, the sender should not be able to, at a later date, deny having sent the message, is referred to as: (A) Authenticity (B) Non-Repudiability (C) Auditability (D) Repudiability

asked 16 hours ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 4 views

0 votes

0 answers

5

UGCNET-june2009-ii-47
A clustering technique that permits a convenient graphical display is: (A) partition based clustering (B) probabilistic model based clustering (C) hierarchical clustering (D) agglomerative clustering

asked 16 hours ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 5 views

0 votes

0 answers

6

UGCNET-june2009-ii-46
E-commerce includes: (A) B2C (B) B2B (C) C2C (D) All of the above

asked 16 hours ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 7 views

0 votes

0 answers

7

UGCNET-june2009-ii-45
When compared with analog cellular systems, an advantage of digital TDMA cellular system is that: (A) it is less complicated (B) it requires less of computer memory (C) it conserves spectrum bandwidth (D) it costs less

asked 16 hours ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 4 views

0 votes

0 answers

8

UGCNET-june2009-ii-41
Which one of the following ISO standard is used for software process? (A) ISO 9000 (B) ISO 9001 (C) ISO 9003 (D) ISO 9000-3

asked 16 hours ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 3 views

0 votes

0 answers

9

#serial communication
http://gateoverflow.in/2229/gate1997_2-3 ans is a) or b)????

asked 20 hours ago in Computer Networks by shefali1 Active (1.2k points) | 3 views

0 votes

1 answer

10

Self doubt Switches
In link-layer switches ,switch performs the filtering function to discards the frame which is to be redirected to same interface from which it came. If a frame destined for station 712B13456142 arrives at port 1, the switch consults its ... if both source and destination node are on same LAN and source node has destination's IP and MAC address?

answered 1 day ago in Computer Networks by Rupendra Choudhary Loyal (3k points) | 14 views

0 votes

0 answers

11

UGCNET-june2009-ii-31
Usually information security in a network is achieved by: (A) Layering (B) Cryptography (C) Grade of service (D) None of the above

asked 1 day ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 5 views

0 votes

0 answers

12

hamming code direction of parity bits From left or right?

asked 1 day ago in Computer Networks by Parshu gate (457 points) | 12 views

+1 vote

1 answer

13

UGCNET-june2009-ii-02
In order that a code is error correcting, the minimum Hamming distance should be : (A) t (B) 2t - 1 (C) 2t (D) 2t + 1

answered 1 day ago in Computer Networks by Parshu gate (457 points) | 14 views

0 votes

1 answer

14

UGCNET-june2009-ii-30
GSM/CDMA systems: (A) are limited to very low speed data (B) require no local loop wires (C) are predominantly used for voice (D) all of the above

answered 2 days ago in Computer Networks by stdntlfe (61 points) | 10 views

+1 vote

1 answer

15

bridges
Bridges connect two LAn segments of same or different protocol?

answered 2 days ago in Computer Networks by Rupendra Choudhary Loyal (3k points) | 20 views

0 votes

0 answers

16

UGCNET-june2009-ii-29
X.25 protocol consists of: (A) Physical and Frame levels (B) Frame and Packet levels (C) Physical, Frame and Packet levels (D) None of the above

asked 2 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 8 views

0 votes

2 answers

17

made easy

answered 2 days ago in Computer Networks by nikkey123 (199 points) | 74 views

0 votes

1 answer

18

made easy
The services like flow control, error detection and error correction is given by which of the following: a. Data link layer b. Network layer c. Data link Control d. None of these

answered 2 days ago in Computer Networks by nikkey123 (199 points) | 14 views

0 votes

0 answers

19

made easy

asked 2 days ago in Computer Networks by Nils (471 points) | 25 views

+1 vote

1 answer

20

leaky bucket
Computer A has 19.5MB to be sent on a network and transmits the data in burst at 6mbps.The max transmission rate across routers in the network is 4mbps.If computer A's transmission is shaped using leaky bucket.Capacity that the queue in bucket must hold so that no data is discarded is ________________________________(in MB upto 1 decimal place)

answered 2 days ago in Computer Networks by rahul sharma 5 Veteran (11.4k points) | 29 views

0 votes

0 answers

21

MTU with header
If suppose MTU =620 (including header) and 1380 bytes has to be sent (header is 20B) s data to be sent is 1380 -20 =1360 MTU = 600 -20 =600 so max capacity to be sent as fragments is 600 + header or 596 + header?

asked 2 days ago in Computer Networks by A_i_$_h Boss (5.2k points) | 19 views

+1 vote

1 answer

22

Slow start
Consider the efffect of using slow start on a line with 10msec RTT.The receiver window and size of congestion window are 38KB and 36KB respectively.Sender side threshold is set to 18KB.After 8 transmission timeout occurs,after timeout the time ... first full window of 18KB is ________________(in msec).Assume window size at the start of slow start phase is 2KB

answered 2 days ago in Computer Networks by Habibkhan Veteran (78k points) | 27 views

0 votes

0 answers

23

UGCNET-june2009-ii-08
To employ multi-access in GSM, users are given different: (A) time slots (B) bandpass filters (C) handsets (D) frequency bands

asked 2 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 7 views

0 votes

0 answers

24

UGCNET-june2009-ii-07
The Fiber Distributed Data Interface uses: (A) single mode fibers and LEDs (B) multimode fibers and LEDs (C) single mode fibers and ILDs (D) multimode fibers and ILDs

asked 2 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 6 views

0 votes

0 answers

25

UGCNET-june2009-ii-06
The throughput of pure ALOHA is given by: (A) S=G (B) S=e2G (C) S=Ge2G (D) Ge-2G

asked 2 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 5 views

+1 vote

0 answers

26

self_doubt
In CSMA-CD,suppose A is sending data to B. colligen occure at middle of the path then who will send jamming signal to whom ?

asked 2 days ago in Computer Networks by Nils (471 points) | 17 views

+1 vote

0 answers

27

back off algo
Assume X and Y are the only two stations on ethernet.Each has a steady queue of frames to send.Both X and Y attempt to tranmit a frame,they wait to get the control of the channel using binary exponential algo.The prob that both were ... allowed to send the frame on 5th round(assuming everytime both X and Y will collide in back off race till 4th round)

asked 2 days ago in Computer Networks by A_i_$_h Boss (5.2k points) | 28 views

+1 vote

0 answers

28

RTS /CTS
a)What is the purpose of RTS and CTS frames b) what is DHCP server? and absence of it doesnt create any problem in IPV6 protocol as it supports both statefull and stateless configuration...What is the meaning of this statement...how are they related??

asked 2 days ago in Computer Networks by A_i_$_h Boss (5.2k points) | 15 views

+1 vote

0 answers

29

nyquist theorem
Is nyquist theorem there in syllabus... if yes can someone explain its purpose

asked 2 days ago in Computer Networks by A_i_$_h Boss (5.2k points) | 7 views

0 votes

1 answer

30

UGCNET-dec2009-ii-26
Device on one network can communicate with devices on another network via a (A) Hub/Switch (B) Utility server (C) File server (D) Gateway

answered 3 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 16 views

0 votes

1 answer

31

UGCNET-dec2009-ii-30
Match the following : (i) Ethernet (a) Deterministic (ii) Token Ring N (b) Utilize the full wire speed (iii) Cut-through switch (c) Prevent looping (iv) Spanning tree (d) Checking valid address Codes : (A) i – d, ii – a, iii – b, iv – c (B) i – a, ii – d, iii – b, iv – c (C) i – d, ii – d, iii – c, iv – b (D) i – d, ii – c, iii – b, iv – a

answered 3 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 22 views

0 votes

1 answer

32

UGCNET-dec2009-ii-29
In case of Bus/Tree topology signal balancing issue is overcome by (A) Modulation (B) Polling (C) Segmentation (D) Strong transmitter

answered 3 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 23 views

0 votes

1 answer

33

UGCNET-dec2009-ii-27
What is the maximum window size in sliding window protocol used in a computer network ? (A) 4 (B) 8 (C) 15 (D) 16

answered 3 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 23 views

0 votes

1 answer

34

UGCNET-dec2009-ii-28
Which of the following are Data Link Layer standard ? 1. Ethernet 2. HSSI 3. Frame Relay 4. 10 – Base T 5. Token Ring (A) 1, 2, 3 (B) 1, 3, 5 (C) 1, 3, 4, 5 (D) 1, 2, 3, 4, 5

answered 3 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 29 views

0 votes

2 answers

35

UGCNET-dec2009-ii-48
Which technology is sometime referred to as wireless cable ? (A) MMDS (B) ATM (C) LMDS (D) CDMA

answered 3 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 21 views

0 votes

2 answers

36

UGCNET-dec2009-ii-50
The unlicensed National Information Infrastructure band operates at the _________ frequency (A) 2.4 GHz (B) 5 GHz (C) 33 MHz (D) 5 MHz

answered 3 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 24 views

0 votes

2 answers

37

UGCNET-dec2009-ii-49
Another name of IEEE 802.11 a is ____________ (A) Wi-Max (B) Fast Ethernet (C) Wi-Fi (D) 802.11 g

answered 3 days ago in Computer Networks by rishu_darkshadow Loyal (2.9k points) | 31 views

+1 vote

1 answer

38

Bit stuffing

answered 4 days ago in Computer Networks by saxena0612 Active (2.1k points) | 59 views

+1 vote

1 answer

39

Fragmentation

answered 4 days ago in Computer Networks by Habibkhan Veteran (78k points) | 40 views

0 votes

1 answer

40

While TCP is a connection oriented service then why its segment follows different path.

answered 5 days ago in Computer Networks by Priyanka Agarwal Junior (519 points) | 61 views

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