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Infosys Mainframe Developer Interview Questions, Process, and Tips
Top Infosys Mainframe Developer Interview Questions and Answers
- Q1. What is the difference between comp comp3
- Q2. What is a cursor in the context of databases, and what purposes does it serve?
- Q3. What is the difference between static and dynamic calls?
Infosys Mainframe Developer Interview Experiences
9 interviews found
Anonymous
I applied via Naukri.com and was interviewed in Dec 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. What is the difference between comp comp3
- Ans.
comp and comp3 are data types used in mainframe programming.
comp is a binary data type that uses one byte for each digit.
comp3 is a packed decimal data type that uses half a byte for each digit.
comp3 is more space-efficient but requires additional processing for arithmetic operations.
comp3 can store both positive and negative numbers, while comp can only store positive numbers.
Interview Preparation Tips
Skills evaluated in this interview
I was interviewed in Jan 2025.
(4 Questions)
- Q1. What is the difference between static and dynamic calls?
- Q2. How to get control over job execution?
- Q3. What is a cursor in the context of databases, and what purposes does it serve?
- Q4. How can null variables be handled in COBOL DB2 programs?
(2 Questions)
- Q1. What is the waterfall model in software development?
- Q2. What is the Agile framework?
(1 Question)
- Q1. Discussion on CTC, work location and project.
Protya Roy
(2 Questions)
- Q1. Types of utilities in mainframe
- Ans.
Mainframe utilities are software programs used for various tasks like data management, job scheduling, and system maintenance.
IEFBR14 - used for creating empty datasets
IEBCOPY - used for copying datasets
IEBGENER - used for generating datasets
IDCAMS - used for defining and managing VSAM datasets
DFSORT - used for sorting and merging datasets
- Q2. Differentiate between Comp vs Comp3
- Ans.
Comp is a binary data type with fixed length, while Comp3 is a packed decimal data type with variable length.
Comp is binary and fixed length, while Comp3 is packed decimal and variable length
Comp stores data in binary format, while Comp3 stores data in packed decimal format
Comp uses 4 bytes for each field, while Comp3 uses variable length depending on the precision required
Example: Comp field with value 1234 will be st...
(2 Questions)
- Q1. What is your salary expectation
- Ans.
My salary expectation is based on my experience, skills, and the market rate for Mainframe Developers.
Consider my years of experience in Mainframe development
Research the average salary for Mainframe Developers in the current market
Factor in the location and size of the company
- Q2. What you want to leave your current organisation
- Ans.
Seeking new challenges and opportunities for growth.
Looking for a more challenging role that allows me to further develop my skills
Interested in exploring new technologies and methodologies
Seeking a more supportive and collaborative work environment
Want to take on more responsibility and leadership opportunities
Skills evaluated in this interview
(2 Questions)
- Q1. Static call and dynamic call
- Q2. Abend SOC4 how to resolve
- Ans.
Abend SOC4 is a system completion code indicating a protection exception error in a mainframe program.
Check for invalid data or address in the program
Review the program logic for any potential issues
Ensure proper handling of data and memory allocation
Use debugging tools like IPCS to analyze the error
Infosys interview questions for designations
I applied via Naukri.com and was interviewed in Apr 2024. There was 1 interview round.
(2 Questions)
- Q1. What is diff between index and subscript
- Ans.
Index is the position of an element in an array, while subscript is the variable used to access elements in an array.
Index is a fixed value that represents the position of an element in an array.
Subscript is a variable that is used to access elements in an array.
Example: arr[2] - '2' is the index, while '2' is the subscript.
- Q2. What is explanation for SPUFI
- Ans.
SPUFI stands for SQL Processing Using File Input. It is a tool used to execute SQL queries in DB2 databases.
SPUFI is a menu-driven tool provided by IBM for executing SQL queries in DB2 databases.
It allows users to interactively execute SQL queries and view the results.
SPUFI can be used to test SQL statements before embedding them in application programs.
It is commonly used by developers and database administrators for ...
Interview Preparation Tips
Skills evaluated in this interview
Get interview-ready with Top Infosys Interview Questions
Selected
I applied via Walk-in and was interviewed in Feb 2024. There was 1 interview round.
(1 Question)
- Q1. Which methodology is your using ?
- Ans.
I am using Agile methodology for software development.
Agile methodology focuses on iterative development and collaboration between cross-functional teams.
It emphasizes adaptability to changes in requirements and continuous improvement.
Examples of Agile practices include Scrum, Kanban, and Extreme Programming (XP).
Mainframe Developer Jobs at Infosys
Aptitude will be easy
(6 Questions)
- Q1. What are your salary expectations?
- Q2. What are your strengths and weaknesses?
- Q3. Why are you looking for a change?
- Q4. Share details of your previous job.
- Q5. Why should we hire you?
- Q6. Tell me about yourself.
Interview Preparation Tips
Depa. patidar14
(1 Question)
- Q1. Cobol , JCl, Db2 basic question
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Feb 2021. There were 2 interview rounds.
(2 Questions)
- Q1. Technical, HR & Final round
- Q2. COBOL,j CL DB 2 VS AM
Interview Preparation Tips
What people are saying about Infosys
Interview questions from similar companies
Selected
I applied via Company Website and was interviewed in Jun 2024. There was 1 interview round.
(2 Questions)
- Q1. Explain Precompilation process
- Q2. How do you do Load and Unload Process
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Infosys Mainframe Developer Interview Process
based on 7 interviews
2 Interview rounds
- Technical Round
- HR Round
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based on 16 reviews
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