UST Senior Application Developer Interview Questions and Answers

Q1. What is COND parameter
Ans. 
COND parameter is used in JCL to specify a condition for executing a job step.
• COND parameter is used in IF/THEN/ELSE statements to determine the execution of a job step.

• It can be used to check the return code of a previous step or a specific condition.

• COND parameter can have values like ONLY, EVEN, ONLY EVEN, etc.

• It can also be used with the NOT operator to negate the condition.

• COND parameter can be used with job steps
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Q2. Used in JCL to skip few steps
Ans. 
COND parameter is used in JCL to skip few steps
• COND parameter is used in JCL to specify a condition that must be met before executing a step

• If the condition is not met, the step is skipped

• The syntax for using COND parameter is: COND=(code,operator,stepname)

• For example, COND=(0,NE,STEP1) will skip the step if the return code of the previous step is not 0
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Q1. What is DISTINCT in DB2
Ans. 
DISTINCT is a keyword in DB2 used to retrieve unique values from a column or set of columns.
• DISTINCT is used in SELECT statements to eliminate duplicate rows.

• It can be used with one or more columns.

• It is often used in conjunction with aggregate functions like COUNT, SUM, AVG, etc.

• Example: SELECT DISTINCT column1, column2 FROM table_name;

• Example: SELECT COUNT(DISTINCT column_name) FROM table_name;
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Q2. Used to remove duplicates
Ans. 
The function used to remove duplicates is called 'distinct'.
• Distinct is used in SQL to remove duplicate rows from a result set.

• In Python, the set() function can be used to remove duplicates from a list.

• The unique() function in R can be used to remove duplicates from a vector.
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Round duration - 60 Minutes
Round difficulty - Medium

This round started slow with some basic fundamental questions around OOPS and then paced up higher to some more advanced questions around Java 8 and Java in general.

Q1. Can you explain the SOLID principles in Object-Oriented Design?
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Q2. What is abstraction in Object-Oriented Programming?
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Q3. How is an abstract class different from an interface?
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Q4. What is a classloader in Java?
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Q5. Why are Java Strings immutable in nature?
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Q6. Why is Java considered platform independent, while the Java Virtual Machine (JVM) is platform dependent?
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Q7. What are some standard Java pre-defined functional interfaces?
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Q8. What are the advantages of using the Optional class in Java?
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Round duration - 60 Minutes
Round difficulty - Medium

This round had questions from Microservices , Spring Boot and Hibernate. The interviewer was quite freindly and also helped
wherever I was stuck.

Q1. How many bean scopes are supported by Spring?
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Q2. What do you understand by autowiring in Spring Boot, and can you name the different modes of autowiring?
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Q3. Can you explain the @RestController annotation in Spring Boot?
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Q4. What does the @SpringBootApplication annotation do internally?
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Q5. Can you explain the difference between setMaxResults() and setFetchSize() in a Query?
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Q6. What are the concurrency strategies available in Hibernate?
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Q7. Can you explain the working of Microservice Architecture?
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Q8. What issues are generally addressed by Spring Cloud?
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Round duration - 30 Minutes
Round difficulty - Easy

This was a Technical Cum HR round where I was first asked some basic Java related concepts and then we discussed
about my expectations from the company , learnings and growth in the forthcomig years. I would suggest be honest and
try to communicate your thoughts properly in these type of rounds to maximise your chances of getting selected.

Q1. Kubernetes related
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Q1. What are your salary expectations?
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Q2. Share details of your previous job.
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Q3. Where do you see yourself in 5 years?
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Q4. What are your strengths and weaknesses?
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Q5. Tell me about yourself.
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Q1. Aiw?nnnnnnnnnnnnn? Mmmma q
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Formulas related to ece

Arrays,oops,reverse program

Q1. Self introduction,family background, relocate,any shifts
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Q1. Technical discussion
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Q1. Process flow of my work
Ans. 
My work involves analyzing requirements, designing solutions, coding, testing, and deploying applications.
• Analyze requirements provided by stakeholders

• Design solutions based on requirements

• Code the application using appropriate programming languages

• Test the application for bugs and errors

• Deploy the application to production environment
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