Associate Systems Engineer Interview Questions and Answers for Freshers

Reverse a string and replace vowels with numbers in descending order. Restart numbering if more than 9 vowels.

• Reverse the given string using built-in functions or loops

• Create a dictionary to map vowels to numbers from 1-9

• Iterate through the reversed string and replace vowels with numbers from the dictionary

• If there are more than 9 vowels, restart numbering from 1

• Sort the replaced numbers in descending order from left to right

To replace a sub-string in a string, use the replace() method.

• Use the replace() method with the old sub-string and new sub-string as arguments.

• The replace() method only replaces the first occurrence of the sub-string by default.

• To replace all occurrences, use a regular expression with the global flag.

• Example: 'hello world'.replace('world', 'universe') returns 'hello universe'.

• Example: 'hello world'.replace(/world/g, 'universe') returns 'hello universe'.

Java is a high-level programming language known for its portability, security, and versatility.

• Java is platform-independent, meaning it can run on any device with a Java Virtual Machine (JVM).

• It is known for its strong security features, such as automatic memory management and built-in exception handling.

• Java is versatile, with a wide range of applications including web development, mobile apps, and enterprise software.

• The language is object-oriented, making it easier to orga...read more

Program to reverse array of strings using pointers

• Create two pointers, one pointing to the start of the array and the other pointing to the end

• Swap the elements pointed by the two pointers and move them towards each other until they meet

• Repeat the swapping process until the entire array is reversed

Closure in React refers to the ability of a function to remember and access its lexical scope even when it is executed outside that scope.

• Closure allows functions to access variables from their parent function even after the parent function has finished executing.

• In React, closures are commonly used to maintain state in functional components using the useState hook.

• Example: const outerFunction = () => { const outerVariable = 'I am outer'; return () => { console.log(outerVaria...read more

DOM stands for Document Object Model. It is a programming interface for web documents that allows scripts to dynamically access and update the content, structure, and style of a webpage.

• DOM is a programming interface for web documents.

• It represents the structure of a document as a tree of objects.

• Scripts can manipulate the DOM to dynamically update webpage content.

• Examples include using JavaScript to change text, styles, or elements on a webpage.

React Hook is a feature that allows functional components to have state and lifecycle methods.

• React Hooks were introduced in React 16.8 as a way to use state and other React features in functional components.

• Hooks are functions that let you use state and other React features without writing a class.

• Some commonly used React Hooks include useState, useEffect, useContext, and useReducer.

• Hooks can be used to manage component state, perform side effects, and share data between com...read more

Nuclear family consists of parents and their children, while joint family includes extended family members living together.

• Nuclear family is more common in Western cultures, while joint family is prevalent in Eastern cultures.

• In a nuclear family, decision-making is usually done by parents, whereas in a joint family, decisions are often made collectively by all family members.

• Financial responsibilities are typically shared among family members in a joint family, whereas in a n...read more