What is the function of a modem's modulation? MCQ with Answer and Explanation

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What is the function of a modem's modulation?

A. Converts digital signals to analog for transmission

B. Amplifies signals

C. Converts analog to digital

D. Filters signals

Answer: Option A

Solution (By JKSSB Mock Tests)

Modulation converts digital data from a computer into analog signals suitable for transmission over telephone lines.

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Question #1

What is the primary function of a network Default Gateway configuration point on a local client terminal?

A. To translate public domains to internal directory paths.

B. To generate dynamic MAC hardware masks.

C. To handle internal loopback software testing.

D. To provide the routing IP path used to send data outside the local network segment.

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Correct Answer: Option D

Explanation:
The default gateway is the router interface address that a device uses to send traffic destined for networks outside its local subnet.

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Question #2

What notation standard is used to write out physical hardware MAC addresses for human configuration monitoring?

A. Binary data arrays

B. Dotted decimal values

C. Base-64 string fields

D. Six pairs of hexadecimal characters separated by colons or hyphens

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Correct Answer: Option D

Explanation:
MAC addresses are written as six pairs of hexadecimal digits separated by colons or dashes (e.g., 00:11:22:33:44:55).

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Question #3

What is the purpose of a network topology?

A. To secure the network

B. To manage bandwidth

C. To assign IP addresses

D. To define the physical or logical layout of a network

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Correct Answer: Option D

Explanation:
Topology describes how devices are connected in a network, either physically or logically.

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