Neustar Senior IT Specialist Interview Questions and Answers

60mintues DSA level coding exam

Q1. React js, ReactHooks, es67 features, bootstrap
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Q1. Closures, hostings, react js, redux, hooks basic
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Q2. Html5, css3, basic javascript stuff
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Reasoning and aptitude questions are given

Q1. Tell all concepts of Overloading
Ans. 
Overloading is a concept in programming where multiple functions can have the same name but different parameters.
• Functions with the same name but different parameters can be defined in a class

• Overloading allows for flexibility in function usage

• Example: void print(int num) and void print(string text) are overloaded functions
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Q2. Tell me about a live example of inheritance
Ans. 
Inheritance in software development allows a class to inherit properties and behaviors from another class.
• Inheritance allows a subclass to reuse code from a superclass

• Subclass can also add new functionalities or override existing ones

• Example: Animal class can be a superclass with properties like name and age, while Dog class can inherit from Animal and add a method bark()
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Q1. Tell about the your self
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Q1. What is HashMap?
Ans. 
HashMap is a data structure that stores key-value pairs and provides constant time complexity for basic operations.
• HashMap allows quick access to values based on their keys

• Keys must be unique and values can be duplicated

• HashMap is not thread-safe and requires synchronization for concurrent access

• Java's HashMap implementation uses hashing to distribute keys across buckets
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Q2. It’s a collection framework.
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Basic maths and quant

For me it was cyber crime

Q1. Oops java dbms coa
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Q1. General question
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Q1. 2 coding question
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Aptitude test on amcade platform logical reasoning verbal and quantitative aptitude and Java mcqs and English listening and speaking.

GD was about remote jobs is good or bad

Q1. Based on resume ,oops and projects
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