NetBrain Network Automation Engineer Interview Questions and Answers

Q1. Write a java code to print sum of 100 numbers
Ans. 
Java code to print sum of 100 numbers
• Create an array of 100 numbers

• Use a loop to iterate through the array and calculate the sum

• Print the sum at the end
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Q2. Write a count of K char in your name
Ans. 
My name is John Doe. There are 1 'o' in my name.
• Count the occurrences of the specified character in the name

• Iterate through each character in the name and compare with the specified character

• Increment a counter each time the specified character is found
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Q3. How to move to another tabs in selenium
Ans. 
To move to another tab in Selenium, switch to the desired tab using window handles.
• Use getWindowHandles() to get all window handles

• Switch to the desired tab using switchTo().window(handle)
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Q1. Write a program to print 2 nd highest number from array with using sorting?
Ans. 
Program to find 2nd highest number in array without sorting.
• Iterate through array to find highest and second highest numbers

• Initialize variables to store highest and second highest numbers

• Compare each element with highest and second highest numbers
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Q2. Write a program to add value into hashmap?
Ans. 
Program to add values into a hashmap in Java.
• Create a new HashMap object.

• Use the put() method to add key-value pairs into the hashmap.

• Keys must be unique, values can be duplicated.

• Example: HashMap map = new HashMap<>(); map.put("A", 1);
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Q3. What are main concepts of OOPS in java?
Ans. 
Main concepts of OOPS in Java include inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class B extends class A.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables with public getter and setter methods.

• Polymorphism: Ability of a method to do different things ba...read more
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Q1. What are the different http codes used in rest assure?
Ans. 
Different HTTP codes used in Rest Assured
• 200 - OK: Request was successful

• 201 - Created: Request was successful and a new resource was created

• 400 - Bad Request: Request was invalid

• 401 - Unauthorized: Request requires user authentication

• 404 - Not Found: Requested resource was not found

• 500 - Internal Server Error: Server encountered an unexpected condition
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Q2. Write a code using rest assure for status code
Ans. 
Code using Rest Assured for checking status code
• Import Rest Assured library

• Use given() method to specify the base URI

• Use when() method to specify the HTTP method and endpoint

• Use then() method to validate the status code
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Q1. Group anagram strings in a array
Ans. 
Group anagram strings in an array
• Iterate through the array of strings

• For each string, sort the characters alphabetically

• Use a hashmap to group anagrams together based on sorted strings
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Q2. Reverse subset of array 'k'
Ans. 
Reverse a subset of strings in an array 'k'
• Iterate through the array 'k' and reverse the strings within the specified subset range

• Use a temporary variable to swap the strings at the start and end of the subset range

• Ensure to handle edge cases like empty array or invalid subset range
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Q1. Difference between hash map and hash table
Ans. 
HashMap is non-synchronized and allows null values and keys, while HashTable is synchronized and does not allow null values or keys.
• HashMap is non-synchronized and not thread-safe, while HashTable is synchronized and thread-safe.

• HashMap allows null values and keys, while HashTable does not allow null values or keys.

• HashMap is generally preferred over HashTable for non-thread-safe operations due to better performance.
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Q2. What is final finally finalize
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final, finally, and finalize are keywords in Java used for different purposes.
• final is a keyword used to declare constants, prevent method overriding, and prevent inheritance.

• finally is a block of code that is always executed, whether an exception is thrown or not.

• finalize is a method used for cleanup operations before an object is garbage collected.
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Q3. What is idempotent in API
Ans. 
Idempotent in API means that making the same request multiple times has the same effect as making it once.
• Idempotent operations produce the same result regardless of how many times they are called.

• GET and PUT requests are typically idempotent, while POST requests are not.

• For example, sending a PUT request to update a resource should have the same result whether it is sent once or multiple times.
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Q4. Pillars of JAVA and explain with example
Ans. 
The pillars of JAVA are Inheritance, Encapsulation, Polymorphism, and Abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class Dog extends Animal.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables with public getter and setter methods.

• Polymorphism: Ability of a method to do different things based on the ob...read more
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Q1. Questions are based on ur projects Some code snipets Some sql query writings
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Q1. Then 2nd round is mangerial Interpersonal skills
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Q1. Salry negotiations Family background
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Coding test Whit box testing black book testing Gray Box testing

Q1. Technical related Questions
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Q3. Attitude test related
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Q4. JavaScript programming related
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