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About the test:

The JCL Online Test uses scenario-based MCQs to evaluate candidates ability to design, develop and manage JCL (Job Control Language) scripts for batch processing in large enterprise environments. The test assesses candidates on skills such as creating and modifying job control statements, coding condition codes, using utilities such as SORT and IDCAMS, managing resources, and analyzing JCL error messages.

Covered skills:

  • JCL commands
  • JCL utilities
  • JCL job control
  • Job dependency
  • JCL statements
  • JCL parameters
  • Job scheduling
  • Job execution

9 reasons why
9 reasons why

Adaface JCL Test is the most accurate way to shortlist Mainframe Developers



Reason #1

Tests for on-the-job skills

The JCL Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Ability to write and understand JCL commands
  • Ability to use JCL statements effectively
  • Proficiency in JCL utilities
  • Understanding and usage of JCL parameters
  • Capability to control JCL job execution
  • Knowledge of job scheduling and dependencies
  • Strong understanding of job execution in JCL
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 10,000+ questions. The actual questions on this JCL Test will be non-googleable.

🧐 Question

Medium

Disposition Parameters
JCL Syntax
Dataset Management
Solve
Consider the following JCL snippet:
 image
In MYJOB, PROG1 in STEP1 uses the dataset MY.DS.INPUT with a disposition of (OLD,DELETE,KEEP). PROG2 in STEP2 also uses the dataset MY.DS.INPUT with a disposition of (NEW,PASS,DELETE).

Assume that STEP1 executed successfully, but STEP2 failed during its execution. What would be the status of the dataset MY.DS.INPUT after the job MYJOB is run?
A: MY.DS.INPUT will be deleted.
B: MY.DS.INPUT will be kept and can be used by other jobs.
C: MY.DS.INPUT will be newly created.
D: MY.DS.INPUT will be available for the duration of the job, then deleted.
E: MY.DS.INPUT status cannot be determined with the provided information.

Medium

Execution Order and Return Codes
Job Control
Execution Order
Return Codes
Solve
Consider a JCL job that needs to execute five steps: STEP01, STEP02, STEP03, STEP04, and STEP05. The steps represent data initialization, data processing, data validation, error handling, and job finalization respectively.

The execution rules are as follows:

1. The job should always start with STEP01.
2. STEP02 should only execute if STEP01 completes successfully with a return code (RC) of 0.
3. STEP03 should always run after STEP02, irrespective of STEP02's return code.
4. STEP04 should only execute if either STEP02 or STEP03 fails, i.e., return a code not equal to 0.
5. STEP05 should always be the last step, and should only execute if all the previous steps were successful (each returning a code of 0).

Given these rules, how would you design the JCL job using the IF/THEN/ELSE/ENDIF construct?
 image

Medium

Decision Control
Arithmetic Operations
Decision Structures
Data Types
Solve
Consider the following COBOL program:
 image
What will the program display when it is executed?

Medium

Multi Dimensional Arrays
Arrays
Data Processing
Subroutines
Solve
Consider the following pseudocode snippet in COBOL:
 image
After executing this program, what will be the final state of StrArr?

Medium

VSAM File Processing in COBOL
VSAM
File Handling
Solve
Consider the following COBOL code snippet. The program aims to read from a VSAM Key-Sequenced Data Set (KSDS) named 'CUSTOMER-FILE' which contains customer records. The program reads the file in ascending order by 'CUSTOMER-ID', performs some processing (not shown here), and then displays the 'CUSTOMER-NAME' of the last record read.
 image
Assuming there are no syntax errors and the 'CUSTOMER-FILE' is present and accessible, what will the program display as the last customer's name after executing this COBOL program?
A: The program will display the name of the customer with the highest 'CUSTOMER-ID'.
B: The program will display the name of the customer with the lowest 'CUSTOMER-ID'.
C: The program will not display any customer name.
D: The program will display the name of the first customer in the 'CUSTOMER-FILE'.
E: The program will display an uninitialized or random 'LAST-NAME'.
🧐 QuestionπŸ”§ Skill

Medium

Disposition Parameters
JCL Syntax
Dataset Management

2 mins

IBM JCL
Solve

Medium

Execution Order and Return Codes
Job Control
Execution Order
Return Codes

2 mins

IBM JCL
Solve

Medium

Decision Control
Arithmetic Operations
Decision Structures
Data Types

2 mins

COBOL
Solve

Medium

Multi Dimensional Arrays
Arrays
Data Processing
Subroutines

2 mins

COBOL
Solve

Medium

VSAM File Processing in COBOL
VSAM
File Handling

2 mins

COBOL
Solve
🧐 QuestionπŸ”§ SkillπŸ’ͺ DifficultyβŒ› Time
Disposition Parameters
JCL Syntax
Dataset Management
IBM JCL
Medium2 mins
Solve
Execution Order and Return Codes
Job Control
Execution Order
Return Codes
IBM JCL
Medium2 mins
Solve
Decision Control
Arithmetic Operations
Decision Structures
Data Types
COBOL
Medium2 mins
Solve
Multi Dimensional Arrays
Arrays
Data Processing
Subroutines
COBOL
Medium2 mins
Solve
VSAM File Processing in COBOL
VSAM
File Handling
COBOL
Medium2 mins
Solve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment JCL Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the JCL Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

View sample scorecard
Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the JCL Assessment Test

Why you should use Pre-employment JCL Online Test?

The JCL Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • Knowledge and understanding of JCL commands
  • Proficiency in writing JCL statements
  • Ability to utilize JCL utilities
  • Familiarity with JCL parameters
  • Expertise in JCL job control
  • Understanding of job scheduling in JCL
  • Knowledge of job dependency management
  • Ability to execute jobs using JCL
  • Experience in handling exceptions and errors in JCL
  • Proficiency in debugging and troubleshooting JCL code

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the JCL Online Test?

  • JCL commands

    JCL commands refer to the instructions given in JCL (Job Control Language) that define and control various tasks within a job, such as creating datasets, allocating files, executing programs, and managing system resources. This skill is measured in the test to evaluate a candidate's knowledge and proficiency in using JCL commands effectively to perform job-related tasks.

  • JCL statements

    JCL statements are instructions written in JCL (Job Control Language) that specify the steps and parameters needed to execute a job. These statements define the job, job steps, input/output files, and other necessary details. Measuring this skill in the test helps determine a candidate's familiarity with JCL statement syntax and their ability to create error-free and efficient job control procedures.

  • JCL utilities

    JCL utilities are predefined programs that perform specific tasks in the mainframe environment, such as copying, sorting, merging, and manipulating datasets. Evaluating a candidate's knowledge of JCL utilities in the test assesses their ability to utilize these tools effectively for data management and processing tasks, contributing to the overall efficiency of job execution.

  • JCL parameters

    JCL parameters are values provided in the job control language that affect the behavior and execution of a job. These parameters define job-related attributes, such as dataset names, program options, system settings, and resource allocation. Assessing a candidate's understanding of JCL parameters in the test helps measure their capability to define and control job characteristics, ensuring successful job execution.

  • JCL job control

    JCL job control refers to the skill of efficiently managing job execution in the mainframe environment. It involves organizing job steps, defining dependencies, specifying execution order, and monitoring resources to ensure optimal performance. Measuring this skill in the test helps identify candidates who can effectively handle job control tasks, ensuring timely and error-free execution of critical job workflows.

  • Job scheduling

    Job scheduling entails creating a schedule for the execution of various jobs within a computing system. Scheduling involves determining the appropriate timing and sequencing of jobs to optimize system resources and meet organizational requirements. Evaluating a candidate's proficiency in job scheduling in this test enables recruiters to identify individuals who can effectively manage job schedules, ensuring the smooth operation of business processes.

  • Job dependency

    Job dependency refers to the relationship between jobs, where the completion of one job is dependent on the successful execution of another job. Understanding and managing job dependencies is crucial for maintaining the proper order of job execution, avoiding conflicts, and ensuring job workflows are carried out accurately and efficiently. Assessing a candidate's knowledge of job dependency in the test helps determine their ability to manage interdependent jobs effectively, minimizing errors and delays.

  • Job execution

    Job execution refers to the process of running jobs or tasks within a computing system, following the defined instructions and schedules. This skill encompasses managing resources, ensuring job completion within specified time frames, monitoring job statuses, and resolving any issues or errors that may occur during execution. Measuring a candidate's competence in job execution in this test helps gauge their ability to carry out job-related tasks efficiently, ensuring smooth workflow and meeting organizational goals.

  • Full list of covered topics

    The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for JCL Test to be based on.

    JCL Basics
    JCL Syntax
    JCL Job Control Statements
    JCL Job Utilities
    JCL Parameters
    JCL Job Scheduling
    JCL Job Dependency
    JCL Job Execution

What roles can I use the JCL Online Test for?

  • Mainframe Developer
  • Mainframe Operator

How is the JCL Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Understanding of JCL file handling and file organization
  • Ability to analyze and optimize JCL performance
  • Knowledge of JCL code version control techniques
  • Familiarity with JCL job restart and recovery procedures
  • Proficiency in implementing job security measures in JCL
  • Understanding of JCL job documentation and annotation techniques
  • Knowledge of JCL program interfacing and external subsystems
  • Ability to design and implement complex JCL workflows
  • Experience in job scheduling automation using JCL
  • Proficiency in performance tuning and optimization of JCL processes
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The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

JCL Hiring Test FAQs

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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