Digital Nirvana Information Systems Interview Questions and Answers

Q1. Golang questions
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Q2. Dsa questions like binary search and remove duplicate inplace
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Aptitude Had around 50 Questions which cover Logical,Quantitative, Code snippets

Q1. Two Sum in Coding
Ans. 
Find two numbers in an array that add up to a specific target value.
• Use a hashmap to store the difference between the target value and each element in the array.

• Iterate through the array and check if the current element's complement exists in the hashmap.

• Return the indices of the two numbers that add up to the target value.
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Q2. Differences in final,Finally,Finalize
Ans. 
final, finally, and finalize are related terms in programming but have different meanings and usage
• final is a keyword in Java used to restrict inheritance, method overriding, and variable reassignment

• finally is a block of code in exception handling that always executes, regardless of whether an exception is thrown

• finalize is a method in Java used for cleanup operations before an object is garbage collected
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Q3. Basic Sql operations
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Q1. Array List Implementation in Stack for Push and pop
Ans. 
Array List can be implemented in a stack by using an array and keeping track of the top element.
• Create an array to store the elements of the stack.

• Keep track of the top element using a variable.

• For push operation, add the element to the top of the stack and increment the top index.

• For pop operation, remove the top element and decrement the top index.
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Q2. Finding 3rd Largest Number in an Array without using Sort
Ans. 
Find 3rd largest number in array without sorting
• Iterate through array to find largest, 2nd largest, and 3rd largest numbers

• Keep track of these numbers as you iterate

• Return the 3rd largest number found
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Q3. Finding the min number of Swap in Sorting of Array
Ans. 
To find the minimum number of swaps needed to sort an array
• Use graph theory to find cycles in the array

• Count the number of swaps needed to fix each cycle

• Add up the swaps needed for all cycles to get the total minimum swaps
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Q1. Explain HR core operating principles and workforce metrics that strengthen the Value preposition of workforce.
Ans. 
HR core operating principles and workforce metrics enhance the value proposition of the workforce by aligning HR strategies with business goals.
• HR core operating principles include fairness, transparency, compliance, and continuous improvement.

• Workforce metrics such as turnover rate, employee engagement, productivity, and diversity can help measure the effectiveness of HR strategies.

• By focusing on these principles and ...read more
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Q2. Unique Challenges Faced from the Business Stakeholders and solution approached.
Ans. 
Business stakeholders often have unique challenges that require tailored solutions from an Associate HRBP Lead.
• Building strong relationships with stakeholders to understand their needs and concerns

• Customizing HR strategies and solutions to align with business goals

• Providing proactive communication and support to address stakeholder challenges

• Collaborating with cross-functional teams to implement effective solutions

• Leve...read more
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Q1. Fibonacci, swap without 3rd var
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Q2. Non repetitive char in string
Ans. 
Find the first non-repetitive character in a string.
• Iterate through the string and count the occurrences of each character.

• Return the first character with a count of 1.
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Scenario based questions

Machine coding round

Q1. TCP/IP related questions, what happens when you search a webpage?
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Q2. Past projects discussions
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Q1. Behavioural questions on how would you tackle a particular scenario
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Apti was easy. Technical OOP basic, SQL Basic questions were added too.

Code snippets

Platform: Hackerank

Coding questions were of basic level.
1.megre two sorted array
2.Find repeated string (case sensitive)

Q1. OOP concepts were asked
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Q2. SQL queries in good depth
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Q3. In and out of projects
Ans. 
In and out of projects refers to the involvement and contribution of a QA QC Engineer throughout the project lifecycle.
• QA QC Engineer is involved in the planning phase to ensure quality standards are defined and met.

• During the execution phase, they conduct inspections, tests, and audits to verify compliance.

• In the closing phase, they review project deliverables and document lessons learned for future projects.
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Q1. Focused on projects
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Q1. Basic HR questions
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Q2. Relocation related questions
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Basic DSA linked list, stack etc

System design food delivery application

Q1. Tell me about yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java, Python, and web development technologies

• Strong problem-solving skills

• Team player with excellent communication skills
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Q2. Why Appviewx and what do u know about it
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