Amdocs Associate Software Engineer Interview Questions, Process, and Tips

Q1. Java and Spring boot concepts and along with 1 coding problem
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Q1. Why Amdocs? and basic HR questions
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Round duration - 90 Minutes
Round difficulty - Medium

This was an online coding round where we had 2 questions to solve under 90 minutes . Both the questions were of easy to medium difficulty .

Q1. 
Subarray with Equal Occurrences Problem Statement
You are provided with an array/list ARR of length N containing only 0s and 1s. Your goal is to determine the number of non-empty subarrays where the numbe...read more
Ans. 
Count the number of subarrays where the number of 0s is equal to the number of 1s in a given array of 0s and 1s.
• Iterate through the array and keep track of the count of 0s and 1s encountered so far.

• Use a hashmap to store the count of 0s and 1s encountered at each index.

• For each index, check if the count of 0s and 1s encountered so far are equal. If yes, increment the total count of subarrays.
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Q2. 
Pythagorean Triplets Detection
Determine if an array contains a Pythagorean triplet by checking whether there are three integers x, y, and z such that x² + y² = z² within the array.
Input:
The first lin...read more
Ans. 
Detect if an array contains a Pythagorean triplet by checking if x^2 + y^2 = z^2.
• Iterate through all possible combinations of three numbers in the array.

• Check if the sum of squares of any two numbers is equal to the square of the third number.

• Return 'yes' if a Pythagorean triplet is found, otherwise return 'no'.
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Round duration - 70 Minutes
Round difficulty - Medium

I was asked to solve 3 preety basic DSA questions in this round and discuss their respective time complexities and then we moved onto OOPS where the interviewer asked me some questions related to JAVA as well as C as I had mentioned both of them in my Resume . At the end , I was asked to write a simple SQL query to join two tables . Overall this round was preety intense and I tried to give my best .

Q1. 
Palindrome String Validation
Determine if a given string 'S' is a palindrome, considering only alphanumeric characters and ignoring spaces and symbols.
Note:
The string 'S' should be evaluated in a case...read more
Ans. 
Check if a given string is a palindrome after removing special characters, spaces, and converting to lowercase.
• Remove special characters and spaces from the input string

• Convert the string to lowercase

• Check if the modified string is a palindrome by comparing characters from start and end
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Q2. 
Fibonacci Number Verification
Identify if the provided integer 'N' is a Fibonacci number.
A number is termed as a Fibonacci number if it appears in the Fibonacci sequence, where each number is the sum of...read more
Ans. 
The task is to determine if a given integer is a Fibonacci number or not.
• Iterate through the Fibonacci sequence until the current number exceeds the given integer 'N'.

• Check if the given integer 'N' matches any number in the Fibonacci sequence.

• If a match is found, output 'YES'; otherwise, output 'NO'.
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Q3. 
All Prime Numbers Problem Statement
Given an integer 'N', your task is to print all the prime numbers that lie within the range from 2 to 'N' (inclusive).
Input:
Integer N
Output:
Prime numbers printe...read more
Ans. 
Print all prime numbers within the range from 2 to N.
• Iterate from 2 to N and check if each number is prime

• A prime number is a number greater than 1 that has no positive divisors other than 1 and itself

• Use a nested loop to check divisibility by numbers less than the current number
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Q4. What is the garbage collector in Java?
Ans. 
Garbage collector in Java is a built-in mechanism that automatically manages memory by reclaiming unused objects.
• Garbage collector runs in the background to identify and remove objects that are no longer needed.

• It helps prevent memory leaks and optimize memory usage.

• Examples of garbage collectors in Java include Serial, Parallel, CMS, and G1.
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Q5. What is a static variable in C?
Ans. 
A static variable in C is a variable that retains its value between function calls.
• Declared using the 'static' keyword

• Retains its value throughout the program's execution

• Useful for maintaining state across function calls
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Q6. Can you explain the Singleton Class in Java?
Ans. 
Singleton class in Java ensures that a class has only one instance and provides a global point of access to it.
• Singleton class is implemented by making the constructor private to prevent instantiation from outside the class.

• It provides a static method to access the single instance of the class.

• The instance is created only once and reused throughout the application.

• Example: Logger class in Java can be implemented as a S...read more
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Q7. Can you write a SQL query that joins two tables A and B on the common attribute ID and selects records (ID_NAME) that have matching ID values in both tables?
Ans. 
Write a SQL query to join two tables on a common attribute and select matching records.
• Use the JOIN keyword to combine tables A and B on the common attribute ID

• Specify the common attribute in the ON clause of the JOIN

• Select the desired columns (ID_NAME) from the joined tables
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Round duration - 30 Minutes
Round difficulty - Easy

This was a typical HR round with some standard Behavioral questions like my interests, weaknesses, strengths, family background, are you willing to relocate or travel , why Amdocs, CEO of Amdocs etc.

Q1. Why do you want to work at Amdocs?
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Moderate level questions based on arrays and strings

Q1. Explain inheritance in detail Intermediate level questions on strings and Arrays and counter-questions on the same. Joins in SQL Query to find 3 rd largest salary Puzzle (Minimum comparison to find the h...read more
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Q1. Basic Hr questions like tell me about yourself , Strength, weakness etc.
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Question level were average

Four coding questions in which two is of SQL queries.

Average level

Q1. Two coding questions Interviewer is nice Simple oops theory also . Sometimes they ask puzzle questions also
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Q1. Simple why to join About myself
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