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MCQ

Q.

Which of the following frequency ranges is used for AM radio transmission?

A

Very Low Frequency : 3 kHz to 30 kHz

B

Medium Frequency : 300 kHz to 3 MHz

C

High Frequency : 3 MHz to 30 MHz

D

Very High Frequency : 30 MHz to 300 MHz

E

None of the above

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MCQ

1.

Eight stations are competing for the use of the shared channel using the modified Adaptive free walk protocol by Gallager. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention?

A

1 slots

B

5 slots

C

10 slots

D

14 slots

E

None of the above

Discussion

MCQ

2.

Which of the following is a wrong example of network layer?

A

Internet Protocol (IP) - ARPANET

B

X.25 Packet Level Protocol (PLP)-ISO

C

Source routing and domain naming-USENet

D

X.25 level 2-ISO

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3.

What device includes an adapter that decodes data sent in radio signals?

A

Modem

B

Digital Translator

C

Router

D

Switch

E

None of these

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4.

Which of the following services dynamically resolves NetBIOS-to-IP resolution?

A

DNS

B

DHCP

C

WINS

D

LMHOSTS

E

None of the above

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5.

The IEEE 802 project of the 1980s involved further defining the lower two layers of the OSI model. A number of standards were agreed upon during that time. Which of the following is the standard for Ethernet?

A

802.2

B

802.3

C

802.4

D

802.5

E

802.6

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