Computer-Database Concepts (NCO- Cyber Olympiad (SOF) Class 12): Questions 1 - 7 of 29

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Question number: 1

» Computer » Database Concepts

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Question

In Relational Database, ________ is known as a set of values of the same type for the given attribute.

Choices

Choice (4) Response

a.

Structure

b.

Degree of Relations

c.

Domain

d.

Cardinality

Question number: 2

» Computer » Database Concepts

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Question

________ Is an Instance of Computer Programs, which will be Executed Sequentially by a Computer System.

Choices

Choice (4) Response

a.

Computer Process

b.

Thread

c.

Active Process

d.

None of the above

Question number: 3

» Computer » Database Concepts

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Question

Which of the following is NOT types of Join in DBMS?

Choices

Choice (4) Response

a.

Equi Join

b.

Cross Join

c.

Index Join

d.

Inner Join

Question number: 4

» Computer » Database Concepts

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The most common letters are in the center row of keys, so less hand movement is needed when a person is typing in ________.

Choices

Choice (4) Response

a.

DVORK

b.

ACMCHI

c.

KALQ

d.

QWERTY

Question number: 5

» Computer » Database Concepts

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Question

________ Key Constraint Uniquely Identified Each Record in the Database.

Choices

Choice (4) Response

a.

Foreign

b.

Primary

c.

Unique

d.

Both a. and c. are correct

Question number: 6

» Computer » Database Concepts

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________ Is a software application that interacts with the user, applications, and the database itself to capture and analyze data.

Choices

Choice (4) Response

a.

DML

b.

DCL

c.

SQL

d.

DBMS

Question number: 7

» Computer » Database Concepts

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MCQ▾

Question

Updates that Violate ________ are Disallowed.

Choices

Choice (4) Response

a.

Authorization

b.

DDL constraints

c.

Transaction control

d.

Integrity constraints

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