CyberArk Software Developer Interview Questions and Answers

Q1. I was asked about pascals triangle and basic questions from oops, dbms, SQL, networking and other topics.
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180 mins test calculatogn

Q1. OOPS questions
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Q2. Design Pattern test
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Coding test was medium to hard leetcode problems.

Round duration - 120 Minutes
Round difficulty - Medium

I was MCQ + Coding round, Their were MCQ Based on DSA, Aptitude and 2 easy coding questions.

Q1. 
Ninja Competition Problem Statement
Ninja is organizing a coding competition where two teams compete at a time. To keep it fair and interesting, both teams must have an equal number of members. Ninja’s ta...read more
Ans. 
Check if Ninja can create two teams with equal members given an integer N and its divisors.
• Iterate through all divisors of N and assign members to the first or second team based on whether the divisor is even or odd.

• Keep track of the total members in each team and check if they are equal at the end.

• Return true if the total members in both teams are equal, false otherwise.
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Q2. 
Help Bob Out! - Validating IFSC Code
Bob has just turned 18 and opened a bank account. Being inexperienced with banking, Bob needs your help to validate whether an IFSC code provided by his bank is valid.
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Ans. 
Validate IFSC code based on given rules and return True or False for each test case.
• Check if the code is 11 characters long.

• Verify the first four characters are uppercase alphabets.

• Ensure the fifth character is '0'.

• Validate that the last six characters are alphanumeric.
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Round duration - 50 Minutes
Round difficulty - Easy

The nature of the interviewer was very kind. The test was proctored, our webcam and mic were on, and shared my screen.

Round duration - 50 minutes
Round difficulty - Easy

The nature of the interviewer was very kind. The test was proctored, our webcam and mic were on, and shared my screen.

It was combination of mcqs and 2 coding questions

Q1. What is oops concepts
Ans. 
Object-oriented programming concepts that focus on objects and classes for better code organization and reusability.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation det...read more
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Q2. Difference between java nd putjon
Ans. 
Java is a programming language while Putjon is not a recognized term in software development.
• Java is a widely used programming language for developing applications.

• Putjon is not a recognized term in software development, it may be a typo or a specific term not commonly used.

• There is no direct comparison between Java and Putjon as they are not related.
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Q3. Tell about ur project
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Q1. What are your strengths
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Q2. What is ur greatest comeback
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Round duration - 90 minutes
Round difficulty - Easy

It was on online objective test consisting of 4 sections: Aptitude, Technical MCQs, Code snippet based MCQs and Coding part.

Q1. 
Valid Parentheses Problem Statement
Given a string 'STR' consisting solely of the characters “{”, “}”, “(”, “)”, “[” and “]”, determine if the parentheses are balanced.
Input:
The first line contains an...read more
Ans. 
The task is to determine if a given string of parentheses is balanced or not.
• Iterate through the characters of the string and use a stack to keep track of opening parentheses.

• When encountering an opening parenthesis, push it onto the stack. When encountering a closing parenthesis, check if it matches the top of the stack.

• If the stack is empty at the end or there are unmatched parentheses, the string is not balanced.

• Exa...read more
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Q2. 
Palindrome Linked List Problem Statement
Determine if a given singly linked list of integers is a palindrome. Return true if it is a palindrome, otherwise return false.
Example:
Input:
1 -> 2 -> ...read more
Ans. 
Check if a given singly linked list of integers is a palindrome.
• Use two pointers to find the middle of the linked list.

• Reverse the second half of the linked list.

• Compare the first half with the reversed second half to determine if it is a palindrome.
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Round duration - 60 minutes
Round difficulty - Easy

This was a technical and managerial round. The interviewer gave me a situation where I am in testing team and I found that customer requirement was drop down list at a place but developer has used bullet selection, and is not ready to change it. How will you manage? I gave some good replies and he was convinced.

Q1. What is a virtual function?
Ans. 
A virtual function is a function in a base class that is declared using the keyword 'virtual' and can be overridden by a function with the same signature in a derived class.
• Virtual functions allow for dynamic polymorphism in object-oriented programming.

• They are used to achieve runtime polymorphism by enabling late binding.

• Virtual functions are declared in a base class and can be overridden in derived classes.

• Example: v...read more
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Q2. Can you explain how to perform a level order traversal of a binary tree in spiral form?
Ans. 
Level order traversal of a binary tree in spiral form involves alternating between left and right while traversing each level.
• Start by pushing the root node into a queue.

• While the queue is not empty, pop a node, print its value, and push its children into the queue.

• For each level, alternate between popping nodes from the queue and printing their values from left to right or right to left.

• Continue this process until all
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Q3. What are abstract classes in C++?
Ans. 
Abstract classes in C++ are classes that cannot be instantiated and are designed to be base classes for other classes.
• Abstract classes may contain pure virtual functions, making them incomplete and unable to be instantiated.

• Derived classes must implement all pure virtual functions from the abstract class in order to be concrete classes.

• Abstract classes can have non-virtual functions and member variables like regular cl...read more
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Round duration - 60 minutes
Round difficulty - Easy

This was also a technical round. He asked to optimize the code I wrote in coding round. Then he asked me a few puzzles and questions on OOPS, OS and DBMS.

Q1. Can you explain the ACID properties in the context of database management systems?
Ans. 
ACID properties are a set of properties that guarantee the reliability of transactions in database management systems.
• ACID stands for Atomicity, Consistency, Isolation, and Durability.

• Atomicity ensures that either all operations in a transaction are completed successfully or none of them are.

• Consistency ensures that the database remains in a consistent state before and after the transaction.

• Isolation ensures that the e...read more
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Q2. What is the difference between paging and segmentation in operating systems?
Ans. 
Paging and segmentation are memory management techniques in operating systems.
• Paging divides physical memory into fixed-size blocks called pages, while segmentation divides logical memory into variable-size segments.

• Paging allows for efficient memory allocation and management, while segmentation provides protection and sharing of memory.

• Paging is simpler to implement but can lead to internal fragmentation, while segmen...read more
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Q3. What is concurrency control?
Ans. 
Concurrency control is a technique used in databases to manage simultaneous access and modification of data by multiple users or processes.
• Concurrency control ensures that transactions are executed in a way that maintains data consistency and integrity.

• Techniques like locking, timestamp ordering, and optimistic concurrency control are used to implement concurrency control.

• For example, in a banking system, concurrency c...read more
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Q4. What is the difference between String Buffer and String Builder in Java?
Ans. 
String Buffer is synchronized and thread-safe, while String Builder is not synchronized and faster.
• String Buffer is synchronized, making it thread-safe for use in multi-threaded environments.

• String Builder is not synchronized, resulting in faster performance but not thread-safe.

• String Builder is preferred for single-threaded operations, while String Buffer is preferred for multi-threaded operations.
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Q5. What are smart pointers in C++?
Ans. 
Smart pointers in C++ are objects that act like pointers but provide automatic memory management.
• Smart pointers help prevent memory leaks by automatically managing memory allocation and deallocation.

• Examples include unique_ptr, shared_ptr, and weak_ptr.

• unique_ptr is used for exclusive ownership, shared_ptr for shared ownership, and weak_ptr to prevent circular references.
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Q6. What is the difference between a mutex and a semaphore?
Ans. 
Mutex is used for exclusive access to a resource, while semaphore is used for controlling access to a resource by multiple threads.
• Mutex is binary and allows only one thread to access the resource at a time.

• Semaphore can have a count greater than one, allowing multiple threads to access the resource simultaneously.

• Mutex is typically used for protecting critical sections of code, while semaphore is used for synchronizat...read more
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