Showing posts with label Computer Network. Show all posts
Showing posts with label Computer Network. Show all posts

Computer Networks Multiple Choice Questions

Friday, 14 September 2012

Computer networks Multiple choice , objective type and quiz questions 

 1) BSC is a  ?
  1. Character Oriented Protocol
  2. Bit Oriented Protocol
  3. Full duplex protocol
  4. Half duplex protocol
  5. A and D
Show/Hide Answer
Answer = E 
Explanation: BSC stands for Binary synchronous Communication. It is a character oriented protocol by IBM's that interpret a transmission frame as a character and usually contain one byte.
2) Which of the following are non - polling system ?
  1. TDMA
  2. Stop & wait
  3. Xon/Xoff
  4. Continuous ARQ
  5. A and C
Show/Hide Answer
Answer = E 
Explanation: No Explanation
3) Adaptive or dynamic directory used in packet routing changes?
  1. within each user session
  2. with each user session
  3. at system generation time only
  4. Both A and B
Show/Hide Answer
Answer = A 
Explanation: No Explanation
4) The parameter which gives the probability of the transport layer itself spontaneously terminating a connection due to internal problem is called?
  1. protection
  2. resilience
  3. option negotiation
  4. transfer failure
Show/Hide Answer
Answer = B 
Explanation: Resilience is the ability to provide and maintain an acceptable level of service in the face of faults and challenges to normal operation.
5) What is the main purpose of a data link content monitor ?
  1. to detect problems in protocols
  2. to determine the type of switching
  3. to determine the type of transmission used in data link
  4. to determine the flow of data
Show/Hide Answer
Answer = A 
Explanation: No Explanation
6) Which of the following is an example of bounded media ?
  1. Wave guide
  2. Coaxial Cable
  3. Fiber optic cable
  4. All of above
Show/Hide Answer
Answer = D 
Explanation: Bounded media is also calles the wired media or guided media.
7) ICMPv6 includes ......?
  1. RARP
  2. ARP
  3. ICMP
  4. B and C
Show/Hide Answer
Answer = D
Explanation: Internet control message protocol includes ABP and ICMP both.
8) IPv6 has ...... bit address ?
  1. 32
  2. 64
  3. 128
  4. variable
Show/Hide Answer
Answer = C 
Explanation:  IPv6 addresses have a size of 128 bits. Therefore, IPv6 has a vastly enlarged address space compared to IPv4.
9) What is the main difference between DDCMP and SDLC ?
  1. DDCMP does not need special hardware to final the beginning of a message
  2. DDCMP has a message header
  3. SDLC has a IP address
  4. SDLC does not use CPC
Show/Hide Answer
Answer = A
Explanation: HDLC (High-Level Data Link Control) is communication protocol and SDLC (Synchronous Data Link Control) is data link protocols.
10) Number of bits per symbol used in Baudot code is ?
  1. 7
  2. 8
  3. 5
  4. 9
Show/Hide Answer
Answer = C 
Explanation: Baudot code is a character set that preceded the more sophisticated character set EBCDIC 
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Multiple Choice Questions On Computer Networks

Sunday, 15 July 2012

Following is the Full index of Computer Network's Multiple Choice Questions. Great Source for Best Multiple Choice Questions of Computer Network with Answers and Explanation. CCNA Questions and Answer, TCP/IP MCQ, Protocols, IP Address Questions, OSI Layers MCQ and More.

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    Objective Type Questions On Computer Networks - Set 8

    Tuesday, 3 July 2012

    Following are the multiple choice question on Computer Network related concepts that are useful for the competitive exams like UGC-NET Exam, TET Exams etc.
     
    1) Manchester code is a ?

    1. Bi- Polar code
    2. non return to zero code
    3. polar code
    4. B and C
    Show/Hide Answer
    Answer = D 
    Explanation:No Explanation

    2) How many OSI layers are covered in the X.25 standard ?
    1. three
    2. two
    3. seven
    4. six
    5. None of above
    Show/Hide Answer
    Answer = A 
    Explanation:The three layer are : Physical, Data Link, Network. 

    3) The receive equalizer reduce delay distortions using ?
    1. tapped delay lines
    2. gearshift
    3. descrambler
    4. difference engine
    5. None of above
    Show/Hide Answer
    Answer = A 
    Explanation: No Explanation 
    4) In communication satellite, multiple repeaters are known as ?
    1. detector
    2. modulator
    3. stations
    4. transponders
    5. None of above
    Show/Hide Answer
    Answer = D 
    Explanation: A communications satellite's transponder, is the series of interconnected units which form a communications channel between the receiving and the transmitting antennas.
    5) In OSI network architecture, the dialogue control and token management are responsibilities of ?
    1. Session layer
    2. network layer
    3. transport layer
    4. Data link layer
    5. None of above
    Show/Hide Answer
    Answer = A 
    Explanation: No Explanation
    6) The geostationary satellite used for communication system ?
    1. rotates with earth
    2. remains stationery relative to the earth
    3. is positioned over equator
    4. All of above
    Show/Hide Answer
    Answer = D 
    Explanation:  A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth's rotation period. Such a satellite returns to the same position in the sky after each sidereal day, and over the course of a day traces out a path in the sky that is typically some form of analemma. A special case of geosynchronous satellite is the geostationary satellite, which has a geostationary orbit – a circular geosynchronous orbit directly above the Earth's equator
    7) Radio communication frequencies ranges from?
    1. 3 KHz to 300 KHz
    2. 3 KHz to 300 GHz
    3. 300 KHz to 3 GHz
    4. 3 KHz to 3,000 GHz
    Show/Hide Answer
    Answer = B 
    Explanation: Radio frequency (RF) is a rate of oscillation in the range of about 3 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals.
    8) The frequency ranges from 300 KHz to 3 MHz is used for ?
    1. AM radio transmission
    2. TV transmission
    3. FM radio transmission
    4. Microwave communication, satellite and rader
    5. None of above
    Show/Hide Answer
    Answer = A  
    Explanation: No Explanation 
    9) Establishing a virtual connection is functionally equivalent to ?
    1. Connecting as virtual memory
    2. Physically connecting a DTE and DCE
    3. Placing a telephone call prior to a conversation
    4. Placing a modem prior to a conversation
    5. None of above
    Show/Hide Answer
    Answer = C 
    Explanation: No Explanation 
    10) Which of the following is a function of e-mail system ?
    1. Composition
    2. Transfer
    3. Reporting
    4. All of above
    Show/Hide Answer
    Answer = D 
    Explanation: No Explanation 
    Tags :  Computer Networks multiple choice questions with answers, Objective type questions on computer networks with answers, networking MCQ's, Computer network mcqs, UGC-NET exam preparation, TET exams preparation, multiple choice questions on computer networks , Teacher eligibility test, TET Exams preparation.
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    Computer Networks Objective Type Questions With Answers - Set 7

    Friday, 22 June 2012

    Following are the multiple choice question on Computer Network related concepts that are useful for the competitive exams like UGC-NET Exam, TET Exams etc.
     
    1) A network that requires human intervention of route signals is called a ?
    1. Bus network
    2. Ring netwkork
    3. Star network
    4. T-switched network
    5. None of above
    Show/Hide Answer
    Answer = D 
    Explanation: No Explanation

    2)  Which layer functions as liaison between user support layers and network support layers ?
    1. network layer
    2. physical layer
    3. transport layer
    4. session layer
    Show/Hide Answer
    Answer = C 
    Explanation: Transport Layer functions as liaison between user support layers (Application, Presentation and Session) and network support layers (Network, Data Link and Physical)

    3) If digital data rate of 9600 bps is encoded using 8-level phase shift keying method, the modulation rate is?

    1. 1200 bands
    2. 3200 bands
    3. 4800 bands
    4. 9600 bands
    5. None of above
    Show/Hide Answer
    Answer = C 
    Explanation: Add Explanation in comments!!!

    4)  Maximum data rate of a channel for a noiseless 3-KHz binary channel is?
    1. 3000 bps
    2. 6000 bps
    3. 1500 bps
    4. None of above
    Show/Hide Answer
    Answer =  B
    Explanation: Explanation 4

    5) If the bit string 0111101111101111110 is subjected to bit stuffing for the flag string 01111110, the output string is ?
    1. 011110111110011111010
    2. 01111011111011111100
    3. 01111011111011111010
    4. 0111101111101111110
    Show/Hide Answer
    Answer = A 
    Explanation: No Explanation

    6)  Which of the following is not a standard RS-232C signal ?
    1. RTS
    2. CTS
    3. DSR
    4. VDR
    Show/Hide Answer
    Answer = D 
    Explanation:No Explanation

    7) In Ethernet CSMS/CD the special bit sequence transmitted by the media access management for collision handling is called as  ?
    1. preamble
    2. postamble
    3. jam
    4. None of above
    Show/Hide Answer
    Answer = C 
    Explanation: No Explanation 
    8) HDLC is ?
    1. bit oriented
    2. Code transparent
    3. Code dependent
    4. None of above
    5. A and B
    Show/Hide Answer
    Answer = D 
    Explanation: No Explanation 
    9) Which of the following are non-polling system ?
    1. TDMA
    2. stop & wait
    3. Xon/Xoff
    4. Continuous ARQ
    5. A and C
    Show/Hide Answer
    Answer = E 
    Explanation: No Explanation
    10) Adaptive or dynamic directory used in packet routing changes  ?
    1. within each user session
    2. with each user session
    3. at system generation times only
    4. Both A and B
    Show/Hide Answer
    Answer = A 
    Explanation: No Explanation 
    Tags: Computer Networks multiple choice questions with answers, Objective type questions on computer networks with answers, networking MCQ's, Computer network mcqs, UGC-NET exam preparation, TET exams preparation, multiple choice questions on computer networks , Teacher eligibility test, TET Exams preparation.
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    Multiple Choice Questions On Computer Networks - Set 6

    Thursday, 7 June 2012

    Following are the Multiple choice questions on Computer Networks based on the UGC - NET Syllabus , TET exams , and all other competitive exams.
     
    1) Which of the following is a congestion control algorithm?
    1. The leaky bucket
    2. Token bucket
    3. Resource Respondez sil vous plait protocol
    4. All of above
    Show/Hide Answer
    Answer = D 
    Explanation: No Explanation 
    2) Which of the following is a function of e-mail system ?
    1. Mosaic
    2. Netscape
    3. Internet Explorer
    4. All of above
    Show/Hide Answer
    Answer = D 
    Explanation: No Explanation 
    3) Demodulation is the process of ?
    1. converting digital signals to analog signals
    2. converting analog signals to digital signals
    3. dividing the high-speed signals into frequency bands
    4. combining many low speed signals into one high speed channel
    5. None of above
    Show/Hide Answer
    Answer = B 
    Explanation: No Explanation 
    4) Bulletin board system ?
    1. is a public access message system
    2. converts digital signals to analog signals
    3. is a modem capable of accepting commands
    4. converts digital signals to analog signals
    5. None of above
    Show/Hide Answer
    Answer = A 
    Explanation: No Explanation 
    5) An information utility can offer a user ?
    1. instant bonds and stock quotations
    2. news stories from wire services
    3. Complete airline schedules for all domestic flights
    4. All of above
    5. None of above
    Show/Hide Answer
    Answer = D 
    Explanation: No Explanation 
    6) A network that requires human intervention of route signals is called a ?
    1. bus network
    2. ring network
    3. star network
    4. T- switched network
    5. None of above
    Show/Hide Answer
    Answer = D 
    Explanation: No Explanation 
    7) In OSI network architecture, the dialogue control and token management are responsibilities of ?
    1. session layer
    2. network layer
    3. transport layer
    4. data link layer
    5. none of above
    Show/Hide Answer
    Answer = A 
    Explanation: No  Explanation 
    8) What is the main function of transport layer ?
    1. node to node delivery
    2. process to process message delivery
    3. synchronization
    4. updating and maintenance of routing tables
    Show/Hide Answer
    Answer = B 
    Explanation: No Explanation 
    9) Which of the following is an important characteristics of LAN ?
    1. application independent interface
    2. low cost access for low bandwidth channels
    3. unlimited expansion
    4. parallel transmission
    5. None of above
    Show/Hide Answer
    Answer = A 
    Explanation: No Explanation 
    10) To deliver a message to the correct application program running on a host, the .... address must be consulted ?
    1. port
    2. physical
    3. IP
    4. None
    Show/Hide Answer
    Answer = A 
    Explanation: No Explanation 

    Tags: Computer Networks multiple choice questions with answers, Objective type questions on computer networks with answers, networking MCQ's, Computer network mcqs, UGC-NET exam preparation, TET exams preparation, multiple choice questions on computer networks , Teacher eligibility test, TET Exams preparation.
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    Multiple Choice Questions On Computer Networks - Set 5

    Sunday, 13 May 2012

    Following are the Multiple choice questions on Computer Networks based on the UGC - NET Syllabus 
     
    1) Collection of interconnected networks sometimes called ?
    1. Internet
    2. Wireless network
    3. Mobile Network
    4. None of these
    Show/Hide Answer
    Answer = A 
    Explanation: Internet is not a single network but network of networks.

    2) Which of the following is wrong example of network layer ?
    1. X.25 Level 2-ISO
    2. Source Routing and Domain Naming Usenet
    3. Internet Protocol(IP) - ARPANET
    4. X-25 Packet Level Prrotocol (PLP) - ISO
    5. None of these
    Show/Hide Answer
    Answer = A 
    Explanation: X.25 is an ITU - T standard that specifies an interface between a host system and a packet switching network.
    3) Mobile computers and personal digital assistant (PDAs) are the examples of ?
    1. Radio broadcasting
    2. Wireless network
    3. Geosynchronous
    4. LAN
    Show/Hide Answer
    Answer = B 
    Explanation: Personal Digital Assistant also known as palmtop computers is a mobile device that functions as the personal  information manager, mostly access internet through Wi - Fi or wireless wide area network

    4) ATM (Asynchronous Transfer Mode) is fundamentally a....... technology?
    1. Circuit switching
    2. Packet switching
    3. Narrow band
    4. None of these
    Show/Hide Answer
    Answer = B 
    Explanation:ATM is a cell switching and multiplexing technology that combines the features of circuit switching with packet switching. Like X.25 and frame relay ATM defines the interaction between the user equipment and network.

    5) Which of the following is a variation of Frequency Division Multiplexing (FDM) ?
    1. Time Division Multiplexing(TDM)
    2. Pulse Code Multiplexing(PCM)
    3. Wavelength Division Multiplexing(WDM)
    4. None of these
    Show/Hide Answer
    Answer = C 
    Explanation:The WDM is commonly applied on the optical carrier while FDM is applied on the radio carrier. Since wavelength and frequency are tied together through a simple directly inverse relationship, the two terms actually describe the same concept.

    6) One security method is encryption. But encryption does nothing to keep digital pests and hackers out. To accomplish this goal, we need ?
    1. Router
    2. Bridges
    3. Hubs
    4. Firewalls
    Show/Hide Answer
    Answer = D
    Explanation: Main objective of firewall is to control the incoming and outgoing network traffic by analyzing the data packets and determining whether it should be allowed through or not, based on a predetermined rule set.
    7) HTTP refers to  ?
    1. Hyper Text Transfer Protocol
    2. Hyper Text Transmission Protocol
    3. Hyper Text Tie Protocol
    4. None of these
    Show/Hide Answer
    Answer = A 
    Explanation:No explanation

    8) Why was the OSI developed ?
    1. Manufacturers disliked the TCP/IP protocol
    2. The rate of data transfer was increasing exponentially
    3. Standards were needed to allow any two systems to communicate
    4. None of these
    Show/Hide Answer
    Answer = C 
    Explanation:OSI was an effort to standardize the networking that was started in 1977

    9) Auto dialing allows ?
    1. You to dial up phone numbers by typing them on the keyboard
    2. A personal computer to answer incoming calls without human assistance
    3. Both A and B
    4. None of above
    Show/Hide Answer
    Answer = A 
    Explanation:Auto dialer is an electronic device or software that automatically dials the telephone numbers.

    10) Sending a file from your personal computer's primary memory or disk to another computer is called ?
    1. uploading
    2. hang on
    3. logging on
    4. downloading
    5. None of these
    Show/Hide Answer
    Answer = A 
    Explanation: Uploading refers to sending data from local system to remote system such as server or client.

    Tags: Computer Networks multiple choice questions with answers, Objective type questions on computer networks with answers, networking MCQ's, Computer network mcqs, UGC-NET exam preparation, TET exams preparation, multiple choice questions on computer networks
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    Multiple Choice Questions On Computer Networks - Set 4

    Wednesday, 9 May 2012

    Following are the Multiple choice questions on Computer Networks based on the UGC - NET Syllabus 

    1) The area of coverage of satellite radio beam is known as... ?
    1. Footprint
    2. Circular polarization
    3. Beam width
    4. Identity
    5. None of Above
    Show/Hide Answer
    Answer = A 
    Explanation:No explanation for this question.

    2) Coaxial cable has conductors with ?
    1. Equal resistance
    2. The same diameter
    3. Both A and B
    4. A common axis
    5. None of these
    Show/Hide Answer
    Answer = D 
    Explanation: Coaxial cables has two type of conductors one is inner and other is outer that has common axis.

    3) What protects the coaxial cable from noise ?
    1. Inner conductor
    2. Outer conductor
    3. Diameter of cable
    4. Insulating material
    Show/Hide Answer
    Answer = B 
    Explanation:The outer conductor is covered in protective plastic sheath. This shielding of coaxial cable give it a good combination of high bandwidth and excellent noise immunity.

    4) Error detection at the data link level is achieved by ?
    1. Bit stuffing
    2. Hamming codes
    3. Cyclic Redundancy codes
    4. Equalization
    5. None of above
    Show/Hide Answer
    Answer = A 
    Explanation:Bit stuffing also known as positive justification is the insertion of non-information bits into data.

    5) MAN refers to ?
    1. Mega Area Network
    2. Metropolitan Area Network
    3. Mini Area Network
    4. Medium Area Network
    Show/Hide Answer
    Answer = B 
    Explanation: A metropolitan area network covers a city. The best example is the cable television network available in cities.

    6) Which of the following layer is not in OSI model ?
    1. physical layer
    2. internet layer
    3. network layer
    4. transport layer
    Show/Hide Answer
    Answer =B
    Explanation: The OSI model has total 7 layers out of which internet layer is not a part of OSI model.
    7) Nyquist Theorem to calculate data rate is ?
    1. 2H log2 V bits/sec
    2. H log2 V bits/sec
    3. Hlog2 (1+S/N)
    4. 2H log2 (1+s/n)
    Show/Hide Answer
    Answer = A  
    Explanation:No explanation

    8) Copper wire is an example of ?
    1. Guided Transmission Media
    2. Unguided Transmission Media
    3. Group Media
    4. None of these
    Show/Hide Answer
    Answer = A 
    Explanation:Copper wires comes under the Guided Media. Coaxial cables consist of the stiff copper wire as a core.

    9) Iridium and Dysprosium projects, proposed by Motorola are related to ?
    1. Geosynchronous satellite
    2. Wavelength
    3. Low orbit satellite
    4. ISDN
    Show/Hide Answer
    Answer = C 
    Explanation:Moving down in altitude, we come to LEO satellites. Due to their rapid motion, large numbers of them are needed for a complete system.

    10) Which of the following is a type of fragmentation ?
    1. Transparent
    2. Non transparent
    3. Both A and B
    4. None of these
    Show/Hide Answer
    Answer = C 
    Explanation:Fragmentation is used to break up the packets into fragments. It is of two types : Transparent and Non transparent.


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    Tags: Computer Networks multiple choice questions with answers, Objective type questions on computer networks with answers, networking MCQ's, Computer network mcqs, UGC-NET exam preparation, TET exams preparation, multiple choice questions on computer networks
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    Multiple Choice Questions On Computer Networks

    Tuesday, 10 April 2012

    1) Which of the following is considered a broad band communication channel ?
    1. coaxial cable
    2. fiber optics cable
    3. microwave circuits
    4. all of above
    Show/Hide Answer
    Answer = D
    2) Which of the following does not allow multiple uses or devices to share one communication line?
    1. doubleplexer
    2. multiplexer
    3. concentrator
    4. controller
    Show/Hide Answer
    Answer = A
    3) Which of the following is required to communicate between two computers ?
    1. communications software
    2. protocol
    3. communication hardware
    4. all of above including access to transmission medium
    Show/Hide Answer
    Answer = D
    4)Which of the following is an advantage to using fiber optics data transmission ?
    1. resistance to data theft
    2. fast data transmission rate
    3. low noise level
    4. all of above
    Show/Hide Answer
    Answer = D
    5)The interactive transmission of data within a time sharing system may be best suited to ?
    1. simplex lines
    2. half-duplex lines
    3. full duplex lines
    4. biflex-lines
    Show/Hide Answer
    Answer = B
    6) The optical fiber trans-Atlantic cable TAT-14 includes a section from Bude, Cornwall to Tucker ton, New Jersey. Determine the propagation delay if the route length is 6,254 km. ?
    1. 31.98 ms
    2. 3.198 ms.
    3. 31.27 ms
    4. 312.7 ms
    Show/Hide Answer
    Answer = C
    7) Manchester encoding is principally designed to ?
    1. ensure that the line remains unbalanced.
    2. have more than one symbol per bit period.
    3. increase the bandwidth of a signal transmitted on the medium
    4. ensure that a transition occurs in the center of each bit period.
    Show/Hide Answer
    Answer = D
    8) A router ?
    1. forwards a packet to all outgoing links.
    2. forwards a packet to all outgoing links, except the link upon which the packet originated
    3. forwards a packet to the next free outgoing link
    4. determines on which outgoing link a packet is to be forwarded.
    Show/Hide Answer
    Answer = D
    9) Telephone systems may be classified as ?
    1. simplex and symmetrical.
    2. duplex and asymmetrical.
    3. simplex and asymmetrical.
    4. duplex and symmetrical.
    Show/Hide Answer
    Answer = D
    10) Which of the following signal is not standard RS-232-C signal ?
    1. VDR
    2. RTS
    3. CTS
    4. DSR
    Show/Hide Answer
    Answer =A
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