CrossAsyst Technologies Private Limited. Junior Developer Interview Questions and Answers

The aptitude test was comprising of questions related to qualitative and quantitative reasoning along with basic computer science questions and coding questions also.

Q1. Why are pointers not used in Java but in C and C++ ?
Ans. 
Java has automatic memory management, so pointers are not needed.
• Java has a garbage collector that automatically manages memory.

• Pointers can lead to memory leaks and security vulnerabilities.

• C and C++ are low-level languages that require manual memory management.
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Q2. Types of access modifiers.
Ans. 
Access modifiers control the visibility and accessibility of class members.
• Public: accessible from anywhere

• Private: accessible only within the class

• Protected: accessible within the class and its subclasses

• Default: accessible within the same package
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Q3. Explain polymorphism.
Ans. 
Polymorphism is the ability of an object to take on many forms.
• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• It is achieved through method overriding and method overloading.

• Examples include function overloading, operator overloading, and inheritance.

• Polymorphism helps in achieving loose coupling and flexibility in code design.
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Q1. Tell me something about yourself.
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Q2. Are you wishing to relocate ?
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Q3. Do you know about the bond ?
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Q1. AWS basic questions were asked
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Q2. MongoDB, MySQL basic questions were asked
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5 coding questions on google docs..duration 1 hour

Q1. Questions on string and array manipulation, leap year identification, second largest element of array, etc
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5-6 questions were provided and a day was given.

Q1. DSA question related to array and string
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Q1. Find the minimum number of coins to make a given value. (Coin Change)
Ans. 
Find minimum number of coins to make a given value using dynamic programming.
• Use dynamic programming to find the minimum number of coins needed.

• Create a dp array to store the minimum number of coins for each value up to the given value.

• Iterate through each coin denomination and update the dp array accordingly.

• Return the value at the given value index in the dp array.
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20 questions and 40 minutes time, questions were asked from computer science basics and aptitude

5 coding questions and 1 hr time. Questions were easy to medium level and mostly asked on topics like array, strings and basic data structures

Q1. Next 3 rounds were technical interviews. Coding questions were asked in all rounds and some hr questions in 3rd interview.
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