ELB Learning Interview Questions and Answers

Q1. Count occurence of character from a given string without using stream API.

Q2. Rotate given an array by given number

Q1. Count vowels and consonants for the given string
Ans. 
Count vowels and consonants in a given string
• Iterate through each character in the string and check if it is a vowel or consonant

• Keep separate counters for vowels and consonants

• Consider both uppercase and lowercase characters

• Exclude spaces and special characters from counting
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Q2. Find prime number between 1 to n
Ans. 
Use Sieve of Eratosthenes algorithm to find prime numbers between 1 to n.
• Implement Sieve of Eratosthenes algorithm

• Iterate through numbers from 2 to n

• Mark multiples of each number as non-prime

• Remaining unmarked numbers are prime
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Q3. Arraylist vs linkedlist
Ans. 
ArrayList is better for random access and LinkedList is better for frequent insertions and deletions.
• ArrayList uses dynamic array to store elements, allowing fast random access but slower insertions and deletions.

• LinkedList uses doubly linked list to store elements, allowing fast insertions and deletions but slower random access.

• Example: Use ArrayList when you need to frequently access elements by index. Use LinkedList...read more
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Q4. List vs set vs Map
Ans. 
List is an ordered collection, Set is a collection with no duplicates, Map is a key-value pair collection.
• List maintains insertion order, Set does not allow duplicates, Map stores key-value pairs

• List example: ArrayList, Set example: HashSet, Map example: HashMap
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Q5. Count average salary
Ans. 
Calculate average salary of employees
• Sum up all the salaries of employees

• Divide the total sum by the number of employees to get the average

• Example: salaries = [50000, 60000, 70000], average = (50000 + 60000 + 70000) / 3
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Q1. 1. Can you start with a brief introduction about yourself? 2. Have you faced any significant challenges in recruitment? If yes, how did you overcome them? 3. What are the key performance indicators (KPIs...read more
Ans. 
Experienced Senior Talent Acquisition Specialist with a proven track record in closing positions across various levels.
• Overcame challenges in recruitment by implementing targeted sourcing strategies and building strong relationships with hiring managers.

• Track KPIs such as time to fill, quality of hire, and candidate satisfaction on a monthly basis.

• Successfully closed positions ranging from entry-level to executive role...read more
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Q1. Saas applications
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Q2. Projects worked
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3 questions, 1 hour. Questions mostly on DP, Graphs and strings

Q1. Pollfill for Promise Function
Ans. 
Pollfill is a function that returns a promise which resolves when a condition is met.
• Pollfill function should return a promise

• The promise should resolve when a specific condition is met

• Use polling mechanism to check the condition at regular intervals
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Q2. Difference between throttling and Debouncing
Ans. 
Throttling limits the number of times a function can be called over time, while debouncing ensures a function is only called after a certain amount of time has passed without it being called.
• Throttling limits the rate at which a function can be called, preventing it from being called more than once in a specified time frame.

• Debouncing waits for a specified amount of time to pass after the last time a function was calle...read more
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Q1. How many years of experience ?
Ans. 
I have 5 years of experience working as an Academic Counsellor.
• I have 5 years of experience in providing academic guidance and support to students.

• During my time as an Academic Counsellor, I have successfully helped students navigate their academic paths and achieve their goals.

• I have experience in creating academic plans, conducting assessments, and providing resources to students.

• My experience includes working with s...read more
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Q2. Tell us more about yourself.
Ans. 
I am a dedicated academic counsellor with a passion for helping students achieve their academic and personal goals.
• I have a background in education and psychology, which helps me understand the needs of students better.

• I have experience in providing guidance on course selection, career planning, and study skills.

• I am skilled in building rapport with students and creating a supportive environment for them to thrive.

• I am...read more
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Q3. What is your expected salary
Ans. 
My expected salary is negotiable and dependent on the responsibilities and opportunities offered by the position.
• My expected salary is based on my qualifications, experience, and the market rate for similar positions.

• I am open to discussing salary expectations during the interview process.

• I am looking for a competitive salary that reflects my skills and contributions to the organization.
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Q1. You'll salary will be 18K
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Q2. Start working from tomorrow.
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