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Home » Technical » Networking » Aptitude Test - 12
1. Which of the following is a basic network topology?
A. Tree
B. point-to-point
C. multipoint
D. Tree
2. Which of the following is a basic network topology?
A. half-duplex
B. multipoint
C. ring
D. half-duplex
3. In a _______ relationship, the link is shared equally between devices.?
A. peer-to-peer
B. point-to-point
C. primary-secondary
D. peer-to-peer
4.In a _______ relationship, one device controls traffic and the others must transmit through it?
A. peer-to-peer
B. point-to-point
C. primary-secondary
D. peer-to-peer
5.Devices in a ring or mesh topology are usually configured in a _______ relationship.?
A. peer-to-peer
B. primary-secondary
C. master-slave
D. peer-to-peer
6.Seven devices are arranged in a mesh topology. _______ physical channels link these devices.?
A. Seven
B. Six
C. Twenty
D. Seven
7.Forty-five physical channels link _______ devices arranged in a mesh topology.?
A. Nine
B. Ten
C. Forty
D. Nine
8.When nine devices are arranged in a mesh topology, each device needs _______ input/output ports.?
A. Eight
B. Nine
C. Ten
D. Eight
9. When _______ devices are arranged in a mesh topology, each device needs six input/output ports.?
A. Five
B. Six
C. Seven
D. Five
10. In a mesh topology with n devices, if a new device is added, _______ new links are needed.?
A. n – 1
B. n
C. n + 1
D. n – 1
11. In a _______ topology, a dedicated link connects a device to a central controller.?
A. Ring
B. Bus
C. Mesh
D. Ring
12.A _______ topology is a variation of a star topology.?
A. Ring
B. Bus
C. Mesh
D. Ring
13.The multiplexing technique, in which each input connection has an allotment in the output even if it is not sending data is.?
A. Asynchronous TDM
B. Synchronous TDM
C. FDM
D. Asynchronous TDM
14.Techniques can make the size of the routing table manageable and also handle issues such as:
A. Flow control
B. Error reporting
C. Tunneling
D. Flow control
15.The five components that make up a data communications system are the message, sender, receiver, medium and...?
A. protocol
B. Code
C. connecting device
D. protocol
16.The mobile station moves from one cell to another during a:
A. Optimization
B. Connection
C. Conversation
D. Optimization
17.Parallel transmission is good in speed but it is very?
A. cheap
B. costly
C. time consuming
D. cheap
18.Multiplexing techniques are of:
A. 3 type
B. 4 types
C. 5 types
D. 3 type
19.A digital multiplexing technique for combining several low-rate channels into one high-rate channel is called...?
A. FDM
B. TDM
C. WDM
D. FDM
20.Channels are separated in multiplexing by unused strips of bandwidth guard bands to prevent:
A. Dispersion
B. Noise in channel
C. Overlapping
D. Dispersion
21. Time-division multiplexing multiplexes the :
A. Analog signals
B. Digital signals
C. Both A and B
D. Analog signals
22.An analog multiplexing technique named WDM combines :
A. Electromagnetic signals
B. Optical signals
C. Digital signals
D. Electromagnetic signals
23.Which of the following does not allow multiple uses or devices to share one communication line?
A. doubleplexer
B. multiplexer
C. concentrator
D. doubleplexer
24.A communications device that combines transmissions from several I/O devices into one line is a ?
A. concentrator
B. modifier
C. multiplexer
D. concentrator
25.The sharing of a medium and its link by two or more devices is called _______.?
A. modulation
B. encoding
C. line discipline
D. modulation
26.Which multiplexing technique transmits analog signals?
A. FDM
B. TDM
C. WDM
D. FDM
27.The word ______ refers to the portion of a _______ that carries a transmission.?
A. channel; link
B. link; channel
C. line; channel
D. channel; link
28.We can divide ____ into two different schemes: synchronous or statistical.
A. FDM
B. TDM
C. WDM
D. FDM
29.In ________ TDM, each input connection has an allotment in the output even if it is not sending data.?
A. synchronous
B. statistical
C. isochronous
D. synchronous
30.In ________ TDM, slots are dynamically allocated to improve bandwidth efficiency.?
A. synchronous
B. statistical
C. isochronous
D. synchronous
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