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MCQ

Q.

If a piece of data is stored in two places in the database, then

A

storage space is wasted

B

changing the data is one spot will cause data inconsistency

C

it can be more easily accessed

D

both (a) and (b)

E

None of the above

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MCQ

1.

Which of the following is a serious problem of file management systems?

A

difficult to update

B

lack of data independence

C

data redundancy

D

program dependence

E

All of the above

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2.

In SQL, the ALTER TABLESPACE command is used

A

to add/rename data files

B

to change storage characteristics

C

to take a tablespace online/offline

D

to begin/end a backup

E

All of the above

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3.

The DBMS that is most difficult to use is ________ .

A

Microsoft's SQL Server

B

Microsoft's Access

C

IBM's DB2

D

Oracle Corporation's Oracle

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4.

In SQL, the CREATE VIEW command is used

A

to recompile view

B

to define a view of one or more tables or views

C

to recompile a table

D

to create a trigger

E

None of the above

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5.

The main idea behind computer files is that it is convenient to

A

arrange them

B

store information together

C

create them

D

access them

E

None of the above

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