Sunday, September 20, 2015

Computer Networks Objective Questions(11-15)



11) Which of the following is not a type of Computer Network?
  1. Local Area Network (LAN)
  2. Personal Area Network (PAN)
  3. Remote Area Network (RAN)
  4. Metropolitan Area Network (MAN)
Answer = c
Explanation:The Types of Computer Networks are LAN, MAN, PAN, WAN, CAN but RAN Remote Area Network is not a type of CN.

12) Full Form of NIC?
  1. New Internet Connection
  2. Network Interface Card
  3. Network Interface Connection
  4. Net Interface Card
Answer =B
Explanation: NIC is Network Interface Card Which is Used to Connect Computer to a Network.
13) Which of the following are type of Twisted Pair Cable?
  1. Coaxial Cable
  2. Shielded Twisted Pair (STP)
  3. Unshielded Twisted Pair (UTP)
  4. Only B and C
Answer = D
Explanation:STP and UTP are type of Twisted Pair Cable which are mostly used in all Networks.

14) _________ Supports Data Rate Upto 1000 Mbps Gigabyte Ethernet.
  1. CAT 1
  2. Thinnet
  3. CAT 5
  4. CAT 5e
Answer = D
Explanation: CAT 5e is also Know As 1000 Mbps Gigabyte Ethernet and Supports Data Rate Upto 1000 Mbps.

15) Which Color Coding of Cable is Used to Connect Similar Devices?
  1. Straight Cable
  2. Cross Over Cable
  3. Serial Cable
  4. All of Above.
Answer = B
Explanation: Cross Over Color Coding of UTP Cable is Used to connect Similar Devices like HUB to HUB, PC to PC, Switch To Switch.

Monday, September 14, 2015

Computer Networks Objective Questions(1-10)



1) Manchester code is a ?
  1. Bi- Polar code
  2. non return to zero code
  3. polar code
  4. B and C
Answer = D 

2) How many OSI layers are covered in the X.25 standard ?
  1. three
  2. two
  3. seven
  4. six
  5. None of above
Answer = A 

3) The receive equalizer reduce delay distortions using ?
  1. tapped delay lines
  2. gearshift
  3. descrambler
  4. difference engine
  5. None of above
4) In communication satellite, multiple repeaters are known as ?
  1. detector
  2. modulator
  3. stations
  4. transponders
  5. None of above
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
Answer = A 

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
Answer = D 
Explanation:  A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth's rotation period.

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
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
Answer = A  

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
Answer = C 

10) Which of the following is a function of e-mail system ?
  1. Composition
  2. Transfer
  3. Reporting
  4. All of above
Answer = D

Computer Networks Objective Questions(1-10)



1) Manchester code is a ?
  1. Bi- Polar code
  2. non return to zero code
  3. polar code
  4. B and C
Answer = D 

2) How many OSI layers are covered in the X.25 standard ?
  1. three
  2. two
  3. seven
  4. six
  5. None of above
Answer = A 

3) The receive equalizer reduce delay distortions using ?
  1. tapped delay lines
  2. gearshift
  3. descrambler
  4. difference engine
  5. None of above
4) In communication satellite, multiple repeaters are known as ?
  1. detector
  2. modulator
  3. stations
  4. transponders
  5. None of above
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
Answer = A 

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
Answer = D 
Explanation:  A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth's rotation period.

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
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
Answer = A  

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
Answer = C 

10) Which of the following is a function of e-mail system ?
  1. Composition
  2. Transfer
  3. Reporting
  4. All of above
Answer = D