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Home » Classes » Intermediate » Aptitude Test - 16
1.Which technique does not use modulation?
A. Baseband
B. Broadband
C. Bandwidth
D. Baseband
2.ASCII-7 can represent maximum characters
A. 65536
B. 256
C. 16
D. 65536
3.Which of the following has a 16-bit coding scheme?
A. BCD
B. EBCDIC
C. ASCII
D. BCD
4.Which technique is used to transmit large amount of data such as voice and video, over long distance by using modulation?
A. Baseband
B. Broadband
C. Bandwidth
D. Baseband
5.How many types, the communication channels are divided?
A. 2
B. 3
C. 4
D. 2
6.Microwave transmission, coaxial cables and fiber optics are examples of choose which one is correct?
A. Modems
B. Communication media
C. Gateways
D. Modems
7.is not a communication media choose which one is correct?
A. Twisted wire
B. UTP, STP
C. Microwave
D. Twisted wire
8.is guided media choose which one is correct?
A. Microwave
B. Satellite
C. Fiber optic cable
D. Microwave
9.The bandwidth of the coaxial is choose which one is correct?
A. 2 times greater than twisted pair
B. 20 times greater than twisted pair
C. 40 times greater than twisted pair
D. 2 times greater than twisted pair
10.is commonly used in LAN choose which one is correct?
A. Satellite
B. Coaxial cable
C. Microwave
D. Satellite
11.uses light to transmit data choose which one is correct?
A. Twisted pair
B. Coaxial cable
C. Microwave
D. Twisted pair
12.is an example of unbounded media choose which one is correct?
A. Microwave
B. Fiber optic cable
C. Twisted pair
D. Microwave
13.An idle line has value 1 then it is called choose which one is correct?
A. Clock
B. Mark state
C. Binary digit
D. Clock
14.In Asynchronous transmission; mark state is represented by choose which one is correct?
A. 2
B. 1
C. 0
D. 2
15.Which one is not unguided media?
A. Satellite
B. Microwave
C. Mobile communication
D. Satellite
16.communication medium requires �line-of-sight� choose which one is correct?
A. Microwave
B. Fiber optic cable
C. Twisted pair
D. Microwave
17.In microwave transmission system, antennas are placed on a high towers or buildings and these are placed within choose which one is correct?
A. 200 to 300 miles of each other
B. 2 to 3 miles of each other
C. 20 to 30 miles of each other
D. 200 to 300 miles of each other
18.Satellites are approximately miles above the earth choose which one is correct?
A. 300 miles
B. 22,000 miles
C. 23300 miles
D. 300 miles
19.Satellite transmission stations that can both send and receive messages are known as choose which one is correct?
A. Transceivers
B. Receivers
C. Earth stations
D. Transceivers
20.affects the quality of satellite transmission choose which one is correct?
A. Mountains
B. Moon
C. Light rays
D. Mountains
21.The process to convert analog signals into digital signals is called choosing which one is correct?
A. Modulation
B. Demodulation
C. Digitization
D. Modulation
22.Which term uses modulation to transmit a large volume of data?
A. Baseband
B. broadband
C. Bandwidth
D. Baseband
23.The process of converting digital data into analog is called choosing which one is correct?
A. Digitization
B. Modulation
C. Processing
D. Digitization
24.The data signals transmitted over telephone lines are in the form of choose which one is correct?
A. Digital
B. Analog
C. Digital pulses
D. Digital
25.�bps� stands for choose which one is correct?
A. Bytes per second
B. Baud per second
C. Bits per second
D. Bytes per second
26.External modem is connected to the choose which one is correct?
A. Serial port
B. Parallel port
C. Both a and b
D. Serial port
27.Which type of modem can be added to the system unit through expansion slot?
A. External modem
B. Wireless modem
C. Internal modem
D. External modem
28.Which type of modem does not require any cable as transmission channel to transmit signals?
A. External modem
B. Wireless modem
C. Internal modem
D. External modem
29.Modem stands for choose which one is correct?
A. Modification/Demodification
B. Modulator/Demodulator
C. Mode/Modeless
D. Modification/Demodification
30.CBT stand for
A. Computer Based Trade
B. Computer Based Training
C. Certificate Based Training
D. Computer Based Trade
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