Databases (GATE (Graduate Aptitude Test in Engineering) Computer Science): Questions 122 - 128 of 154

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Question number: 122

» Databases » Query Languages

MCQ▾

Question

________ is the time from when a read or write request is issued to when data transfer begins.

Choices

Choice (4) Response

a.

Access time

b.

seek time

c.

average seek time

d.

rotational latency time.

Question number: 123

» Databases » Database Design

MCQ▾

Question

ODBC stands for-

Choices

Choice (4) Response

a.

Open Database Connectivity

b.

open database command

c.

Operation Database Connectivity

d.

Open Database connection

Question number: 124

» Databases » Relational Model

MCQ▾

Question

An entity in A is associated with at most one entity in B. An entity in B, however, can be associated with any number (zero or more) of entities in A is called________.

Choices

Choice (4) Response

a.

one to one

b.

many to one

c.

one to many

d.

All of the above

Question number: 125

» Databases » Query Languages

MCQ▾

Question

________ are the most elementary form of integrity constraint.

Choices

Choice (4) Response

a.

Domain constraints

b.

Integrity constraints

c.

Referential Integrity

d.

Integrity

Question number: 126

» Databases » Database Design

MCQ▾

Question

The logical model of the database is the correct level for database ________ to focus on.

Choices

Choice (4) Response

a.

end user

b.

server

c.

network

d.

users

Question number: 127

» Databases » Database Design

MCQ▾

Question

________ ensure that changes made to the database by authorized users do not result in a loss of data consistency.

Choices

Choice (4) Response

a.

Integrity

b.

Integrity constraints

c.

Referential Integrity

d.

Domain constraints

Question number: 128

» Databases » Database Design

MCQ▾

Question

________ is used primarily for backup and archival data.

Choices

Choice (4) Response

a.

main memory

b.

Tape storage.

c.

optical storage

d.

Flash memory

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