Are you looking to take your Mainframe Testing career to the next level? An interview is the perfect opportunity to demonstrate your skills and knowledge. Whether you’re preparing for a job interview or just brushing up on the basics, it’s important to know the most commonly asked Mainframe Testing interview questions. Understanding the types of questions that employers may ask is the first step to success. This blog post will provide you with a comprehensive list of Mainframe Testing interview questions and tips to help you ace the interview. The questions will cover a range of topics including software and hardware, troubleshooting and debugging, scripting and automation, and database management. With these questions, you will be well equipped to tackle any Mainframe Testing interview.
- Explain some attributes of Mainframe testing? Answer: …
- What index cardinality? …
- Say some word about clusters? …
- Explain some differences between HIDAM and HDAM databases? …
- What is referential integrity? …
- what is spufi and isolation level? …
- What is JCL in the mainframe?
Mainframe Interview Questions and Answers for Experienced (more than 1 years) COBOL JCL DB2 | Learn
5. What should be tested during mainframe batch application testing? —> This has a broad scope and varies from application to application. Typically, batch processing involves JCL; you must execute JCL and look for output files, tables, or front-end screens. Batch processing is primarily used to process enormous amounts of data simultaneously. ex – Interest calculation in bank on month end.
10. What is the jobcard in JCL? —> JOB CARD is the first statement in every JCL. It is employed to specify the task or unit of work (UoW) that the mainframe operating system will carry out. Only one jobcard is allowed per job. it starts with //. example – //job-name JOB jab-card-parameters.
7. Have you ever used a scheduler? As its name implies, it is used to schedule jobs based on certain conditions. The condition might be day- or time-specific, or it might be dependent on another job. Various scheduler available in mainframe are – CA7, OPC. Additionally, it performs ongoing automatic job monitoring and completion notification.
2. What distinguishes mainframe testing from manual testing? —> Process-wise, it is similar to other types of testing; the distinction is in the technology In addition, we conduct manual testing on, say, web applications or any desktop applications with GUI However, there is no GUI when using a mainframe application; all that is visible are blue screens, either CICS Screens for online testing or a mainframe host for batch testing.
The most typical interview questions for mainframe testing are included in this post as part one of a two-part series.
Mainframe Application Testing Interview Questions for freshers experienced :-
1. A significant electronic data processing system that can manage record gaps is known as a mainframe computer or system. IBM builds Mainframe Computers. Today’s large businesses use mainframes to process their business data, including banks, insurance companies, retailers in the travel and retail industries, and telecom companies. Numerous people today use their credit cards to make purchases, make electronic money transfers, and book flights all over the world. A Mainframe processor quickly completes these transactions.
2. Similar to client-service application testing, mainframe application testing requires testers to be familiar with basic TSO and ISPF commands and menus, view mainframe files, examine and use SDSF or other output tools, log on to CICS and transactions, use FTP or another transfer protocol, and submit batch jobs.
3. What distinguishes general testing from mainframe testing? Whether testing a Windows-based application, a Web-based application, or a mainframe application, the testing methodologies are the same; the only difference is the environment. Testers should have awareness on Environment.
4. JCL is the control language for running programs in a batch environment, so how is it used for testing batch programs? The JCL that actually manages the process is submitted as a test JOB when running a test job.
5. Does the QTP Tool support testing of mainframe applications? Yes, it does. The TE (Terminal Emulators) Add-in is used to support mainframe environments.
Before you go! Take this “Mainframe Interview Questions” interview guide with you
The mainframe ecosystem is made up of computers with various processor and memory configurations that serve as workstations and terminals for processing jobs and carrying out necessary operations. In the 1930s, the first mainframe computer was created, and it became operational in 1943. It cost about $200K, filled an entire room, and weighed about 5 tonnes. IBM began developing smaller, Linux-based systems starting in 1998. Mainframe computers are known to be powerful, agile, and no smaller than refrigerators in size today. They primarily work with systems that can process trillions of instructions per second for data processing and analysis. Even though mainframe technology has become outdated, there is still a need for them because of their powerful processing capabilities.
In this section, we’ll look at the most frequently asked mainframe interview questions, which will help developers ace mainframe interviews by covering concepts from COBOL and JCL. Take a free mock interview to get immediate feedback and recommendations so you can ace your next tech interview with confidence.
Mainframe Interview Questions for Freshers
Different processors and RAM (memory) are combined to create mainframe computers. They function as the central processing unit (CPU) for all connected workstations and terminals. They are used to process petabyte-scale amounts of data, allowing them to handle the requests of thousands of users. A mainframe is a frame that can accommodate several processors and main memory. Real-time request processing is done on these computers in e-commerce, banking, and education. government and various other applications. The following diagram represents the view of the Mainframe system.
COBOL expands to Common Business Oriented Language. This object-oriented, procedural, and imperative language was created as a result of the US Department of Defense’s research and development efforts in the 1950s to create standardized channels of communication among various mainframes. Following are the features of COBOL:
The term “DRDA” stands for Distributed Relational Database Architecture, which functions as a connection protocol for handling local databases. This is mainly used by vendors such as IBM. Rules in the architecture help applications and databases communicate with one another.
FAQ
What is testing in mainframe?
Software services and applications built on mainframe systems are tested through mainframe testing. Application development involves active mainframe testing, which is important for overall development cost and quality. Mainframe testing is a component of platform-spanning end-to-end test coverage.
Is mainframe a testing tool?
In the finance, insurance, and healthcare sectors, for example, mainframes are frequently used for large-scale computing processes that call for performance, dependability, and a high level of security. Testing software services and applications built on mainframe systems is known as “mainframe testing.”
Is mainframe testing manual testing?
There are two ways to test mainframes: manually or automatically using programs like QTP, REXX, and IBM Application Performance Analyzer, among others.
How do I test a job in mainframe?
- Batch Job Testing –
- Online Testing –
- Step 1): Shakedown/Smoke Testing.
- Step 2): System Testing.
- Step 3): System Integration Testing.
- Step 4): Regression Testing.
- Step 5): Performance Testing.
- Step 6): Security Testing.
