DBMS Online Test | Questions and Answers for Competitive Exams - 2

Question: 6

Which of the following component of a computer system is the most important to a database management system?

(A) High speed, large capacity disk

(B) High resolution video display

(C) Mouse

(D) Printer

Question: 7

In a relational schema, each tuple is divided into fields called

(A) Domains

(B) Queries

(C) Relations

(D) None of these

Question: 8

An indexing operation

(A) Establishes an index for a file

(B) Sorts a file using two keys

(C) Sorts a file using a single key

(D) Both (b) and (c)

Question: 9

The modify operation is likely to be done after

(A) Insert

(B) Delete

(C) Look-up

(D) None of these

Question: 10

Which command creates and initializes one or more memory variables?

(A) RELEASE

(B) KEEP

(C) STORE

(D) UPDATE