Neustar Software Testing Engineer Interview Questions and Answers for Experienced

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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Logic and MCQ were there

Q1. How cobol db 2 works? how to add checkpoint logic.
Ans. 
COBOL DB2 is a programming language used for database management. Checkpoint logic is used to ensure data integrity and recoverability.
• COBOL DB2 is used for accessing and manipulating data in DB2 databases.

• Checkpoint logic in COBOL DB2 involves saving the current state of the database at specific points to ensure data integrity.

• To add checkpoint logic, you can use COMMIT and ROLLBACK statements in your COBOL DB2 progra...read more
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Q2. How jcl works, how to do restart
Ans. 
JCL (Job Control Language) is used to control batch jobs on mainframe systems. Restarting a job involves identifying the step where it failed and resubmitting the job from that step.
• JCL is used to define and control batch jobs on mainframe systems

• To restart a job, identify the step where it failed

• Modify the JCL to start from the failed step by specifying the restart parameter

• Submit the modified JCL to restart the job
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It was easy, the topic is upi

Aptitude + coding Test

Q1. It's about my projects
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Q2. And few Javascript questions
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Q1. General HR questions
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Q1. What are different KPI's
Ans. 
Key Performance Indicators (KPIs) are measurable values that demonstrate how effectively a company is achieving key business objectives.
• KPIs are specific, measurable, achievable, relevant, and time-bound metrics used to evaluate the success of an organization or a particular activity.

• Examples of KPIs include revenue growth rate, customer acquisition cost, customer retention rate, website traffic, conversion rate, and e...read more
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Q2. Differentiate loc and iloc in pandas
Ans. 
loc is label-based indexing while iloc is integer-based indexing in pandas.
• loc is used to access a group of rows and columns by labels

• iloc is used to access a group of rows and columns by integer position

• Example: df.loc['row_label', 'column_label'] vs df.iloc[0, 1]
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Q1. Self Introduction
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Q2. Salary Expectation
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I expect a salary that reflects my skills and experience, ideally in the range of $60,000 to $80,000 annually.
• Research industry standards: For example, Glassdoor and Payscale can provide insights into average salaries for data analysts in my area.

• Consider my experience: With 3 years of experience and proficiency in SQL and Python, I believe I bring valuable skills to the table.

• Factor in the company's size and location:...read more
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Q1. 14 questions in excel formulas
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Q1. React js, ReactHooks, es67 features, bootstrap
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60mintues DSA level coding exam