GAO Group Inc Intern Interview Questions and Answers for Freshers

MCQ's on all technologies.

Q1. Questions based on your resume
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Q1. Introduction About company
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MCQ's on all technologies.

Q1. Questions based on your resume
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Q1. Introduction About company
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Q1. Use of Hash Table
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Hash tables are data structures that store key-value pairs for efficient retrieval.
• Hash tables use a hash function to map keys to indexes in an array.

• They have constant time complexity for insertion, deletion, and lookup operations.

• Collisions can occur when multiple keys hash to the same index, which can be resolved using techniques like chaining or open addressing.
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Q1. It was a online coding round with one question related to a medium hard binary search question..
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Q2. The second question was bit ambiguous question involving a tree, where we were asked to add a tree child and subchild in the form a a directory and subdirectory
Ans. 
Adding a tree child and subchild resembles creating directories and subdirectories in a file system.
• A tree structure consists of nodes, where each node can have multiple children.

• To add a child, create a new node and link it to the parent node.

• For example, if 'Folder A' is a parent, 'Folder B' can be a child of 'Folder A'.

• To add a subchild, link a new node to the child node, e.g., 'File 1' as a subchild of 'Folder B'.

• T...read more
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Q1. Explain about yourself
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Q2. Share your weekness
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Identifying weaknesses can show self-awareness and a willingness to improve, which are valuable traits in any intern.
• Perfectionism: I often spend too much time on details, striving for perfection, which can delay project completion. For example, I once spent extra hours refining a presentation.

• Public Speaking: I feel nervous when presenting in front of large groups. To improve, I've started practicing in smaller settin...read more
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Q1. What do you mean by object oriented programming?
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Object-oriented programming (OOP) is a programming paradigm based on the concept of 'objects', which can contain data and methods.
• Encapsulation: Bundling data and methods that operate on the data within one unit (e.g., a class).

• Inheritance: Mechanism to create a new class using properties and methods of an existing class (e.g., a 'Dog' class inheriting from an 'Animal' class).

• Polymorphism: Ability to present the same i...read more
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Basic Mern stack questions

Q1. Tell about yourself
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Q2. Basic web technologies questions
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