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mainframe Online Quiz - 97

Description: mainframe Online Quiz - 97
Number of Questions: 20
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Tags: mainframe
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What part of the BRMS defines the objects that are to be saved in a particular save operation.?

  1. CONTROL GROUP

  2. MEDIA POLICY

  3. SAVE POLICY

  4. BACKUP PLICY


Correct Option: A

How can buffers be assigned to a DCB ?

  1. Through the BUFMAX subparameter

  2. Through the BUFOUT subparameter

  3. Through the BUF subparameter

  4. Through the BUFNO subparameter


Correct Option: D

AI Explanation

To assign buffers to a DCB (Data Control Block), you can use the BUFNO subparameter.

The BUFNO subparameter specifies the number of buffers to be assigned to the DCB. Buffers are temporary storage areas that hold data temporarily during input/output operations. By assigning buffers to a DCB, you can enhance the performance of input/output operations by reducing the number of physical I/O operations to the external storage.

Therefore, the correct answer is:

D) Through the BUFNO subparameter

If a generation data set is specified as input without the generation number, what will the input to the DD ?

  1. the most recent generation created

  2. the earliest generation created

  3. a concatenation of all the cataloged generations

  4. a jcl error will be returned to the job


Correct Option: C
  1. Marks the beginning of one or more program control statements

  2. Identifies the control card library

  3. Delimits the PROC control statements

  4. None of the above


Correct Option: A
  1. Using DD like parameter

  2. Using DD Copy parameter

  3. Using DD Refer parameter

  4. Attributes cannot be copied within SMS datasets


Correct Option: A
  1. Through the RETURN parameter

  2. Through the STARTUP parameter

  3. Through the RESTART parameter

  4. Through the CHECKPNT keyword


Correct Option: C
  1. Yes

  2. No

  3. Only for uncataloged datasets

  4. Only for cataloged datasets


Correct Option: C
  1. Through the RC keyword

  2. Through the COND keyword

  3. Through the CODE keyword

  4. Through the RETURNCD keyword


Correct Option: B
  1. Specifies no space allocation & no disposition processing

  2. Marks a deleted DD statement

  3. Begins an interpreted command stream

  4. Suppress command processing


Correct Option: A
  1. specifies the amount of space required by a step

  2. specifies the amount of space required by a job

  3. both of the above

  4. none of the above


Correct Option: C
  1. Storage violation error

  2. Dataset out of space

  3. Indicates a time out abend

  4. Caused by invalid data in a numeric field.


Correct Option: D

What is COND=EVEN ?

  1. Means execute this step even if any of the previous steps, terminated abnormally.

  2. Means execute this step only if any of the previous steps, terminated normally.

  3. Means execute this step only if any of the previous steps, terminated abnormally.

  4. Means execute this step even if any of the previous steps, terminated normally.


Correct Option: A

How many extents are possible for a sequential file ?

  1. 15

  2. 16

  3. 17

  4. 18


Correct Option: B

Temporary datasets can be created either by not specifying any DSNAME or by specifying the temporary file indicator as in

  1. DSN=&&TEMP

  2. DSN=TEMP

  3. DSN=&TEMP

  4. DSN=*TEMP


Correct Option: A

How can a job’s execution priority be modified ?

  1. PRIQTY parameter

  2. PRTY parameter

  3. JOBCLASS parameter

  4. RUNTIME parameter


Correct Option: B

Which of the following describes relative access speed for z9 major storage types?

  1. Tape is faster than DASD

  2. DASD is faster than cache

  3. Real memory is faster than DASD

  4. Optical storage is faster than cache


Correct Option: C
Explanation:

To solve this question, the user needs to know about the relative access speed for different storage types.

Now, let's go through each option and explain why it is right or wrong:

A. Tape is faster than DASD: This option is incorrect. DASD (Direct Access Storage Device) is faster than tape. Tape is a sequential access storage device, which means that data can only be accessed in a linear sequence, from the beginning to the end of the tape. On the other hand, DASD is a random access storage device, which means that data can be accessed directly and in any order.

B. DASD is faster than cache: This option is incorrect. Cache is faster than DASD. Cache is a type of high-speed memory that is used to store frequently accessed data. It is located between the CPU and the main memory (RAM) and is designed to improve system performance by reducing the number of accesses to slower storage devices such as DASD.

C. Real memory is faster than DASD: This option is correct. Real memory (also known as main memory or RAM) is faster than DASD. Real memory is used by the CPU to store data and instructions that are currently being executed. It is faster than DASD because it can be accessed directly by the CPU without the need for a mechanical arm to move to a specific location.

D. Optical storage is faster than cache: This option is incorrect. Cache is faster than optical storage. Optical storage devices, such as CD-ROMs and DVDs, are slower than cache and are typically used for long-term storage of data that is not frequently accessed.

Therefore, the correct option is:

The Answer is: C. Real memory is faster than DASD.

In the ISPF Edit panel, there are fields named PROJECT, GROUP, TYPE, and MEMBER. What information do these fields specify?

  1. DSNAME

  2. DDNAME

  3. PARM field

  4. DD Statement


Correct Option: A
Explanation:

To answer this question, the user needs to understand the ISPF Edit panel and its fields.

The PROJECT, GROUP, TYPE, and MEMBER fields in the ISPF Edit panel define the dataset name (DSNAME) of the member being edited.

Option A (DSNAME) is incorrect because while the PROJECT, GROUP, TYPE, and MEMBER fields specify the DSNAME of the member, they do not specify the DDNAME of the dataset.

Option B (DDNAME) is incorrect because the fields do not specify the DDNAME.

Option C (PARM field) is incorrect because the PARM field is used to pass additional parameters to the program being invoked and is not related to the fields in the ISPF Edit panel.

Option D (DD Statement) is incorrect because the fields do not specify the DD statement, which is used to define the input and output datasets for a job step.

Therefore, the correct answer is:

The Answer is: A

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