Data | MCQs

Explanation

A cell reference or cell address is a combination of a column letter and a row number that identifies a cell on a worksheet.

For example, A1 refers to the cell at the intersection of column A and row 1; B2 refers to the second cell in column B, and so on.

Explanation

MS Access is a database application used to store, manage, and manipulate data.

It allows for the creation of databases, tables, queries, and reports.

Explanation

Explanation

Data in any computer always stored and send in binary form.

Binary form means 1 and 0.

Explanation

A worksheet is an electronic spreadsheet that lets users to Calculate, Enter & Analyze data.

A spreadsheet is a computer application for computation, organization, analysis and storage of data in tabular form.

Explanation

In the relational model of databases, a primary key is a specific choice of a minimal set of attributes that uniquely specify a tuple in a relation.

Informally, a primary key is "which attributes identify a record", and in simple cases are simply a single attribute: a unique id.

A field is also known as a column

that stores the same type of data and hence can be called a category of data.

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Explanation

The correct term for a repository for data, usually covering a specific topic, is a "database" or a "data repository."

Explanation

The CPU (Central Processing Unit) is the part of the computer that adds, compares, and processes data.

It includes components like the ALU (Arithmetic Logic Unit) and Control Unit that handle these tasks.

Explanation

A variable is a named memory location whose value can change during the execution of a program.

In contrast, a constant has a fixed value that does not change while the program runs.

Explanation

1. Simplex: Data flows in one direction only (e.g., keyboard to computer).
2. Half-Duplex: Data can flow both ways, but not at the same time (e.g., walkie-talkies).
3. Full-Duplex: Data flows both ways simultaneously (e.g., telephone conversations).