Instant Systems Interview Questions, Process, and Tips

Aptitude test was the mixture of common aptitude questions along with sql, basic javascript and java language basic questions and couple of simple coding questions like febinachi series, palindrom pattern etc .

Q1. They started from basic of java and some frameworks like springboot and then moved to advance of these topics.
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Q2. Springboot annotations Opps concept run-time and compile time polimorphisam SQL quesries for Select and Joins
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Q1. Level 2 interview from the same topics along with abstraction and interface Constructor overriding is possible or not? dependency injection
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Q2. Ways to create object in java.
Ans. 
Objects in Java can be created using the 'new' keyword, constructors, and factory methods.
• Use the 'new' keyword followed by the class name to create an object

• Objects can also be created using constructors to initialize the object's state

• Factory methods can be used to create objects without exposing the instantiation logic
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There was basic GD topic

Q1. Google form was shared in which 15 questions were there and 3 were apti questions (work ,time ,speed) and others were from java programming and the time given was 2 hours.
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Q1. In this only you will be asked theoretical questions like DBMS, JAVA, Programming, Your Project for programming he will ask only logic and will not ask you to code.
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Q1. Count the number of words and their frequency
Ans. 
Count the number of words and their frequency
• Split the given text into words using whitespace as delimiter

• Create a dictionary to store the word frequency

• Iterate through each word and update the frequency in the dictionary

• Return the dictionary with word frequency
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Q2. Count frequency of characters.
Ans. 
Count the frequency of characters in a given string.
• Iterate through the string and use a hash map to store the count of each character.

• Initialize the count of each character to 0 and increment it as you encounter the character.

• Finally, iterate through the hash map to get the frequency of each character.
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Q3. Reversing the array
Ans. 
Reverses an array of strings
• Use a loop to iterate through half of the array

• Swap the elements at the current index with the corresponding element from the end of the array
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Q4. Implementing the comparator function for sorting
Ans. 
Implementing the comparator function for sorting an array of strings.
• Use the built-in sort() function in most programming languages.

• Define a custom comparator function that compares two strings.

• Return a negative value if the first string should come before the second, a positive value if it should come after, and 0 if they are equal.

• Example: ['apple', 'banana', 'cherry'] can be sorted in alphabetical order using the co
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In a group of 8 people. They gave us topic on Online & Offline Education. I just say be speak boldly

Tricky but easy. Coding remains the same as we have done many times.

Q1. List, Tuples, Dictionary, Set, Binary search, LinkedList..
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Q2. I prefer you to do Edureka’s top 100 python interview Q&A then it will be easy to crack interview
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Any topic can be given

Related to java

Q1. Difference between Assert and verify
Ans. 
Assert checks if a condition is true, while verify checks if a condition is true and reports if it is false.
• Assert is used to validate the expected result of a test case

• Verify is used to validate the actual result of a test case

• Assert throws an exception and stops the test execution if the condition is false

• Verify reports the failure but continues with the test execution

• Assert is used for critical validations, while ve
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Q2. Verification and validation
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Q3. SDLC Models like agile model and V model
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Q4. Process of manual testing
Ans. 
Manual testing involves executing test cases manually without the use of automation tools.
• Identify test scenarios and create test cases

• Execute test cases and record results

• Report defects and retest after fixes

• Perform regression testing

• Ensure test coverage and traceability
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Q5. Regression and retesting
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Q1. What is maven and Maven hierarchy
Ans. 
Maven is a build automation tool used primarily for Java projects. It manages dependencies and builds the project.
• Maven uses a Project Object Model (POM) to manage dependencies and build process

• Maven has a hierarchical structure with parent and child projects

• Maven plugins can be used to extend its functionality

• Maven can be integrated with Continuous Integration tools like Jenkins

• Example: mvn clean install command is us
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Q2. What is framework and Use of testNG
Ans. 
TestNG is a testing framework for Java. It is used to perform unit, functional, integration, and end-to-end testing.
• TestNG is an open-source testing framework for Java

• It supports various types of testing such as unit, functional, integration, and end-to-end testing

• TestNG provides annotations to define test methods, test suites, and test cases

• It generates test reports and allows parallel execution of tests

• TestNG can be ...read more
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Q3. Page oriented model and program oriented model
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Q4. CSS selector and Xpath
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Q5. Locators and line of code to store any data in a textbox
Ans. 
To store data in a textbox, use locators and line of code.
• Identify the textbox element using locators such as ID, name, class, or XPath

• Use the sendKeys() method to enter data into the textbox

• Store the data in an array of strings for later use
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Q1. Java topics, mostly core java
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Q2. Some pattern design and encapsulation inhabitance, polymorphism, abstraction etc
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Q3. Also some critical and analytical thinking questions
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Q1. Abstraction and Interfaces
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Q2. Analytical and critical thinking questions
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Basic aptitude questions

Basic coding questions