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Q.

Which layer of OSI determines the interface of the system with the user?

A

Network

B

Application

C

Data-link

D

Session

E

None of the above

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MCQ

1.

Which of the following summation operation is performed on the bits to check an error-detecting code?

A

Codec

B

Coder-decoder

C

Checksum

D

Attenuation

E

None of the above

Discussion

MCQ

2.

In geosynchronous orbit, satellite

A

remains in a fixed position so that as earth rotates, it can fully cover the earth

B

remains in a fixed position related to points on earth

C

moves faster than the earth's rotation so that it can cover larger portion of earth.

D

moves simultaneously

E

None of the above

Discussion

MCQ

3.

You are working with a network that has the network ID 192.168.10.0 and require nine subsets for your company and the maximum number of hosts. What subnet mask should you use?

A

255.255.255.192

B

255.255.255.224

C

255.255.255.240

D

255.255.255.248

E

255.255.255.252

Discussion

MCQ

4.

With an IP address starting at 200, you currently have 10 subnets. What subnet mask should you use to maximize the number of available hosts?

A

192

B

224

C

240

D

248

E

252

Discussion

MCQ

5.

The EIA-232 interface has _____ pins.

A

20

B

24

C

25

D

30

E

None of the above

Discussion

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