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Mainframe MCQ

You want to load the data in a VSAM cluster. What ways can you take?

None

Use the COBOL program

Use the REPRO command

Answer

Correct Answer: Use the COBOL program

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What is the purpose of Basic Mapping support?

Helps to coordinate transactions

Helps to coordinate tasks

Used to store information about CICS system

Helps to get output in desired format

Answer

Correct Answer: Helps to get output in desired format

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What will be the value of EIBCALEN at START?

Answer

Correct Answer: 0

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Which of the following resets MDT?

RMDT

FSET

RESET

FRSET

Answer

Correct Answer: FRSET

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The INSPECT statement can be used to check whether the value in a data name is numeric.

True

False

Answer

Correct Answer: False

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Relative key clause must be mentioned in case of a relative file organisation.

False

True

Answer

Correct Answer: False

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Is Control Interval Descriptor Field present for each Control Interval?

Yes

Answer

Correct Answer: Yes

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Which of the following is true about Primary key values and Alternate key values?

Primary key values must be unique, alternate key values need not be

Primary key values need not be unique, alternate key values must be unique

None

Unique key values

Answer

Correct Answer: Primary key values must be unique, alternate key values need not be

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The START statement enables the programmers to start processing from any record position.

False

True

Answer

Correct Answer: False

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Which of the following is true about START and XCTL?

START is an INTERVAL control command, XCTL is a program control command

All

START is used to start a new task

XCTL is used to pass control to a program within the same task

Answer

Correct Answer: All

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If program A passes 40 bytes to program B through common area and program B has defined its DFHCOMMAREA to be 60 bytes. Can there be a problem?

No, B will never access bytes from 41-60

Yes

Yes, if B tries to access bytes from 41-60

Answer

Correct Answer: Yes, if B tries to access bytes from 41-60

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A map was generated. What is the output created as a result?

Map copy book

None

Map copy book And Load module

Load module

Answer

Correct Answer: Map copy book And Load module

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Attribute byte is received at EOF in symbolic map?

False

True

Answer

Correct Answer: True

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What happens when you perform update/ delete via a cursor?

Whole table is updated/deleted

Only the current row is updated/ deleted

Update/ delete is not possible via cursor

None

Answer

Correct Answer: Only the current row is updated/ deleted

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The cursor is declared in the “working storage” in a program:

False

True

Answer

Correct Answer: True

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In which phase of a job the jobs are processed and fine tuned for execution?

Conversion

Output

Processing

Input

Answer

Correct Answer: Conversion

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Which of the following statements are true about a Leaf pages?

Leaf pages are lowest level index pages

Leaf pages are opposite of root pages And Leaf pages are lowest level index pages

Leaf pages are opposite of root pages

None

Answer

Correct Answer: Leaf pages are opposite of root pages And Leaf pages are lowest level index pages

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What does a file status of 02 on a VSAM indicate?

Duplicate primary key

No Key

Duplicate alternate key

Answer

Correct Answer: Duplicate alternate key

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_____________ helps in monitoring of tasks.

CICS

None

JCL

VSAM

Answer

Correct Answer: CICS

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Which of the following is true about DCB?

All

It is used to describe Data Sets

DCB stands for Data Control Block

It is a keyword for DD statement

Answer

Correct Answer: All

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