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Q.

An operation that will increase the length of a list is

A

Insert

B

Look-up

C

Modify

D

All of the above

E

None of the above

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Which of the following products implemented the CODASYL DBTG model?

A

IDMS

B

DB2

C

dBase-II

D

R:base

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Which of the following products was the first to implement true relational algebra in a PC DBMS?

A

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3.

A large computer information system maintains many different computer files. Which amongst them is called a perpetual file?

A

Specialized file

B

Log file

C

Master file

D

Update file

E

None of the above

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4.

Which of the following places the common data elements in order from smallest to largest?

A

character, file, record, field, database

B

character, record, field, database, file

C

character, field, record, file, database

D

Bit, byte, character, record, field, file, database

E

None of these

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Which of the following products was an early implementation of the relational model developed by E.F. Codd of IBM?

A

IDMS

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DB2

C

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