Fulcrum Digital Senior Software Developer Interview Questions and Answers

Q1. No of divisions in cobol?
Ans. 
There are four divisions in COBOL: Identification Division, Environment Division, Data Division, and Procedure Division.
• Identification Division: Contains program name, author, and date.

• Environment Division: Specifies the hardware and software environment.

• Data Division: Defines the data structures used in the program.

• Procedure Division: Contains the actual program logic.
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Q2. What is GDG in JCL?
Ans. 
GDG stands for Generation Data Group in JCL, used to manage related datasets as a single unit.
• GDG is used in JCL to group related datasets together for easier management.

• It allows for easy referencing of datasets within the group using relative generation numbers.

• Example: MYDATA.GDG(+1) refers to the most recent generation in the GDG.

• Example: MYDATA.GDG(-1) refers to the previous generation in the GDG.
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Q1. Java OOPS concepts, Algorithms, Exception Handling
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Q1. Solid Principle, Design Patterns,
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Q2. React sharing data btw siblings without any state management.
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Q3. NodeJs is single threaded then why it feels concurrent?
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Q1. Questions related micro services
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Q2. Message queue related questions
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Q3. NodeJs related questions: Event loop
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Q1. Tell us about your experience.
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Q2. In english, give me a feedback you received lately.
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Q1. Brief explanation of SOLID principles
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Q2. Ref vs out arguments
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Leet code medium level question

Q1. About Java Streams
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Q2. Restful API coding completion based on given file
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Q1. To check your attitude
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Q2. Given detailed about company and what project you are going to work on?
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Q1. Hashmap working
Ans. 
Hashmap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
• Hashmap uses a hashing function to map keys to indices in an array.

• It allows for constant time complexity O(1) for insertion, deletion, and retrieval operations.

• Example: HashMap<String, Integer> map = new HashMap<>(); map.put("key", 123); int value = map.get("key");
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Q2. Multithreading cases
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Q3. Scenario specific on how to handle multiple events on a single variable to have accurate result
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Q4. Database indexing
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Q5. Architecture level
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I was given a test which was not that difficult

Q1. Why are you leaving the current job
Ans. 
Seeking new challenges and growth opportunities in a more innovative environment.
• Looking for new challenges and opportunities for growth

• Interested in working in a more innovative environment

• Seeking a change in company culture or work-life balance
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Q2. What's the driving factor for you to join Altair
Ans. 
The innovative projects and collaborative work environment at Altair are the driving factors for me to join.
• Innovative projects: I am excited about the opportunity to work on cutting-edge projects that push the boundaries of technology.

• Collaborative work environment: I value teamwork and believe that working with talented individuals at Altair will help me grow professionally.

• Company culture: I have heard great things ...read more
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Q1. Print Longest Increasing Subsequence
Ans. 
Print the longest increasing subsequence of an array of strings.
• Use dynamic programming to find the longest increasing subsequence.

• Iterate through the array and keep track of the longest increasing subsequence ending at each index.

• Return the longest increasing subsequence found.
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