Tag: mainframe

Questions Related to mainframe

Which statements concerning the JCLLIB statement are true? (2 answers)
technology mainframe

  1. There is either a JCLLIB statement for the entire JOB, or a separate one for each EXEC statement, not both.

  2. A JCLLIB statement can not have a statement name.

  3. There can only be one JCLLIB statement per JOB.

  4. A JCLLIB statement must be coded before the first EXEC statement.

Show answer
Correct Option: C,D

Which of the following conditional expressions can not be used with an IF-THEN-ELSE-ENDIF construction?

technology mainframe

  1. STEP.RC NE 8

  2. ABEND = FALSE

  3. STEP.CC = U4038

  4. STEP.RUN EQ TRUE

Show answer
Correct Option: C

AI Explanation

To answer this question, we need to understand the syntax and rules of using conditional expressions with an IF-THEN-ELSE-ENDIF construction.

The IF-THEN-ELSE-ENDIF construction is used in programming languages to make decisions based on a condition. It follows the syntax:

IF condition THEN statement(s) ELSE statement(s) ENDIF

The condition in the IF statement is a conditional expression that evaluates to either true or false.

Let's go through each option to understand why it can or cannot be used with an IF-THEN-ELSE-ENDIF construction:

A. STEP.RC NE 8 - This option can be used with an IF-THEN-ELSE-ENDIF construction because it is a valid conditional expression. It checks if the value of the STEP.RC variable is not equal to 8.

B. ABEND = FALSE - This option can be used with an IF-THEN-ELSE-ENDIF construction because it is a valid conditional expression. It checks if the value of the ABEND variable is equal to false.

C. STEP.CC = U4038 - This option cannot be used with an IF-THEN-ELSE-ENDIF construction because it is missing the comparison operator. The correct syntax for this condition would be STEP.CC EQ U4038. Therefore, this option is incorrect.

D. STEP.RUN EQ TRUE - This option can be used with an IF-THEN-ELSE-ENDIF construction because it is a valid conditional expression. It checks if the value of the STEP.RUN variable is equal to true.

The correct answer is C. STEP.CC = U4038. This option is incorrect because it is missing the comparison operator.

Therefore, the conditional expression that cannot be used with an IF-THEN-ELSE-ENDIF construction is C. STEP.CC = U4038.

When calling a procedure we can change - in different ways - this procedure. Which is the most complete statement?

technology mainframe

  1. We can override parameters on EXEC statements and add DD statements.

  2. We can override, nullify and add parameters on all statements and add DD and/or OUTPUT statements.

  3. We can add and override parameters to all statements, but can only nullify parameters to DD and OUTPUT statements.

  4. We can nullify, override and add parameters to all statements, but can only add DD statements.

Show answer
Correct Option: B

AI Explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) We can override parameters on EXEC statements and add DD statements. This option is incorrect because it only mentions overriding parameters on EXEC statements and adding DD statements. It does not mention nullifying parameters or adding parameters to other statements.

Option B) We can override, nullify and add parameters on all statements and add DD and/or OUTPUT statements. This option is the most complete statement because it mentions that we can override, nullify, and add parameters on all statements. It also mentions that we can add DD and/or OUTPUT statements. This option covers all possible ways to change a procedure.

Option C) We can add and override parameters to all statements, but can only nullify parameters to DD and OUTPUT statements. This option is incorrect because it limits nullifying parameters to only DD and OUTPUT statements. It does not mention that we can nullify parameters in other statements.

Option D) We can nullify, override and add parameters to all statements, but can only add DD statements. This option is incorrect because it limits adding parameters to only DD statements. It does not mention that we can add parameters in other statements.

The correct answer is B. This option is correct because it mentions that we can override, nullify, and add parameters on all statements. It also mentions that we can add DD and/or OUTPUT statements. This option covers all possible ways to change a procedure.

Which of the following are directly controlled by JCL statements: (2 answers)
technology mainframe

  1. The passing of job control information to the Job Entry Subsystem

  2. The addressing of input resources

  3. The performance of calculations

  4. The sending of an email to the person who submitted the job

Show answer
Correct Option: A,B

Which of the following equations are correct? (2 answers)
technology mainframe

  1. DISP=(,PASS) is equivalent to DISP=(NEW,PASS,KEEP)

  2. DISP=(,,KEEP) is equivalent to DISP=(NEW,DELETE,KEEP)

  3. DISP=(,,CATLG) is equivalent to DISP=(OLD,CATLG,CATLG)

  4. DISP=(OLD,,) is equivalent to DISP=(OLD,KEEP,KEEP)

Show answer
Correct Option: B,D

One job has abended due to SB37 abend code. What should be the solution?
technology mainframe

  1. The program is not getting special resource

  2. Input or Output datasets have some space unavailability

  3. The job has abended because of database problem.

  4. None of the above

Show answer
Correct Option: B

What is the purpose of DD * statement in JCL?
technology mainframe

  1. Begins the input data prompt at the system console

  2. Begins an instream dataset

  3. Marks the end of the command stream

  4. Includes all datasets within a naming pattern

Show answer
Correct Option: B

How can a job send a status message to TSO user at the completion of job?
technology mainframe

  1. STATUS

  2. NOTIFY

  3. ENDMSG

  4. USER

Show answer
Correct Option: B
Explanation:

The correct answer is B. NOTIFY.

In TSO (Time Sharing Option) or ISPF (Interactive System Productivity Facility), a job can send a status message to the TSO user at the completion of the job using the NOTIFY command.

By specifying the NOTIFY parameter in the job's JCL (Job Control Language) or by using the NOTIFY command within a program, the TSO user will receive a message indicating the completion status of the job once it finishes executing. This allows the user to be notified and stay informed about the job's completion.

Option A (STATUS), Option C (ENDMSG), and Option D (USER) are not valid options for sending a status message to the TSO user at the completion of a job in TSO or ISPF.

So, the correct answer is B. NOTIFY.

How can un used space allocation be returned to the system when a dataset is closed?
technology mainframe

  1. RETURN

  2. RLSE

  3. CONTIG

  4. CLOSE

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Correct Option: B

Where can program check points be stored for use in a restart?
technology mainframe

  1. SYSCHK DD statement

  2. CHCKPOINT DD statement

  3. CHKOUT DD statement

  4. CHECK or DD statement

Show answer
Correct Option: A