JCL (Z/OS) - INTRODUCTION TO JCL
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
Understanding Batch Processing - ANSWER Module 1
Enterprise Data Processing - ANSWER Quiz 1
Online processing usually occurs during non-peak processing time, for example, early hours of the
morning. - ANSWER False --> Online processing often occurs during normal business times.
In batch processing, a batch job is submitted that invokes one or more programs. - ANSWER True --> A
batch job contains one or more programs to be run, input data, and output requirements.
Only programmers will be responsible for submitting batch jobs. - ANSWER False --> Several job roles
within your organization will have a need to submit their own batch jobs, not just programmers.
Enterprise data can only be accessed through batch processing. - ANSWER False --> Both online and
batch processing can be used to access enterprise data.
Which file, or data set, cannot be opened using JCL? - ANSWER Segmented --> Segmented is not a file
type or data set, therefore cannot be used by JCL.
Segmented is not a file type or data set, therefore cannot be used by JCL. - ANSWER Large amounts of
repeated work can be processed quickly, Updates to data can be performed at a time suitable to the
organization --> The following are some of the advantages of running batch processing:
Updates to data can be performed at a time suitable to the organization,
It is suitable for large amounts of repeated work,
Dollar costs per workload are significantly less because of the characteristics above,
Less user interaction is required to schedule and run batch jobs
, Code that is used for specifying the input data, output requirements, and programs that will reference
them - ANSWER JCL
Used for viewing the output produced from the batch job. - ANSWER SDSF
Receives jobs into the system, making them available for processing, and controls output processing. -
ANSWER JES2
Needed to access existing JCL that is stored in partitioned data sets. - ANSWER ISPF
Each batch job you create should stand alone as the only member in a PDS. - ANSWER False --> A PDS
used for JCL normally contains many members for jobs that perform various tasks.
Batch Processing Prerequisites - ANSWER Quiz 2
JCL can only be accessed using a 3270 greenscreen interface. - ANSWER False --> Today, JCL can be
accessed through several interfaces including the traditional 3270 greenscreen and the GUI in z/OS
Explorer.
There are several ISPF utilities that can be used to automatically create JCL based on-screen prompts. -
ANSWER True --> The ISPF search utility provides an option to submit a batch job based on user input.
JCL organizational standards only apply to inexperienced JCL users. - ANSWER False --> Organizational JCL
standards apply to all JCL users.
A colleague mentions that they are about to run a "job" on the mainframe. What does this mean? -
ANSWER They are going to submit some JCL to the system. --> "Running a job" on the mainframe means
that the user will submit some JCL to the mainframe system.
Module Test - ANSWER Mastery Test 1
You need to enter a new customer's details directly into the system, using a screen-based form. -
ANSWER Online
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