Data | MCQs

Explanation

Sorting is one of the most common tools for data management.

In Excel, you can sort your table by one or more columns, by ascending or descending order, or do a custom sort.

Explanation

Explanation

Explanation

In MS-Excel, the "Undo" command allows you to reverse recent actions, such as accidental deletions or changes to the data on the sheet.

It is the quickest way to restore a record immediately after it has been erased.

Explanation

Information on a hard disk is usually backed up using a backup storage device.

Such as a CD-ROM, SSD, HDD, optical disk, or tape system.

The type of medium used depends on how quickly the data needs to be restored.

Explanation

Fiber optics uses light to transmit data at high speeds through thin glass or plastic fibers.

It is mainly used in communication networks like internet, telephone, and cable TV.

Explanation

Wireless communication allows quick, remote data transfer without physical connections.

It's commonly used by agencies for mobility, flexibility, and real-time communication.

Explanation

File Manager helps users manage files and folders (copy, move, delete, etc.).

It is a utility program that supports the operating system's functionality.

Explanation

Twisting copper wires (as in twisted pair cables) helps cancel out electromagnetic interference from external sources and reduces crosstalk between adjacent wires.

This method improves signal quality in data transmission.

Explanation

In Ring topology, each computer is connected to two others, forming a circle.

Data travels in one direction (or sometimes both, in a dual ring) from node to node until it reaches its destination.