Bahwan CyberTek Senior Associate Interview Questions and Answers

Q1. Interface vs abstract class
Ans. 
Interface defines a contract while abstract class provides partial implementation.
• Interfaces can only have abstract methods while abstract classes can have both abstract and non-abstract methods.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Interfaces are used for loose coupling while abstract classes are used for code reusability.

• Example of interface: Runnable interface in Java...read more
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Q2. What is Method overloading?
Ans. 
Method overloading is when a class has multiple methods with the same name but different parameters.
• Method overloading allows for flexibility in method calls

• The methods must have different parameters, such as different data types or different numbers of parameters

• Example: public void print(int num) and public void print(String str)

• The compiler determines which method to call based on the arguments passed
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Q3. Indexing of sqlsever dstsbase
Ans. 
Indexing in SQL Server database
• Indexing improves query performance by creating a structure that allows for faster data retrieval

• Clustered and non-clustered indexes are the two types of indexes in SQL Server

• Clustered indexes determine the physical order of data in a table while non-clustered indexes create a separate structure

• Indexing should be done strategically to avoid over-indexing which can slow down data modificat
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Q4. Value type & reference type
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Q1. Only Salary negitiation
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Q1. Few common questions from project & why did u left your current organization
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Q1. Java 8 features
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Q2. Springboot , Microservice
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Q3. Docker knowledge
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Q4. Cloud concept like aws or azure
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Q1. Job change reason
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Q1. Explain datawindow in powerbuilder
Ans. 
DataWindow is a GUI control in PowerBuilder used to display and manipulate data from a database.
• DataWindow can be used to retrieve data from a database, display it in a tabular format, and allow users to edit the data.

• It supports various data sources such as SQL, ODBC, and XML.

• DataWindow can also be used to create reports and graphs.

• It provides various features such as sorting, filtering, grouping, and computed columns...read more
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Basic aptitude questions with problem solving, logical and reasoning questions

Explanation about oops concept with coding, loops and conditional statements.