Broadridge Financial Solutions C Developer Interview Questions and Answers

2 DSA medium questions was asked.

2 DSA coding questions and CS fundamentals

Q1. System design questions in a projects
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Q1. Closures, setTimeout, Eventloop in javascript
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Q2. How to center a div in css3
Ans. 
To center a div in CSS3, use the 'margin: auto;' property along with a set width.
• Set the width of the div

• Use 'margin: auto;' to center the div horizontally

• Make sure the parent container has a defined width
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Q3. Call , bind and apply functions in javascript
Ans. 
call, bind, and apply are methods used to manipulate the context of a function in JavaScript.
• call() is used to invoke a function with a specified 'this' value and arguments provided individually.

• bind() is used to create a new function with a specified 'this' value and initial arguments.

• apply() is used to invoke a function with a specified 'this' value and arguments provided as an array.
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Creating a Web App using React JS and Java Servlets

Q1. Basics of angular, ts,js
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Q1. Programming questions
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Q1. Family backgroud
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The topic was -> "One nation one election"

Q1. What is a String pool in Java?
Ans. 
String pool in Java is a pool of unique strings stored in memory to optimize memory usage.
• String pool is a part of Java's memory where unique string literals are stored.

• When a new string is created, Java checks if it already exists in the pool to save memory.

• Strings created using double quotes are added to the pool, while those created using 'new' keyword are not.

• Example: String str1 = "hello"; String str2 = "hello"; /...read more
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Q2. Explain different types of exception in Java.
Ans. 
Java has checked and unchecked exceptions. Checked exceptions must be handled at compile time, while unchecked exceptions do not need to be handled explicitly.
• Checked exceptions: Must be caught or declared in the method signature. Example: IOException, SQLException

• Unchecked exceptions: Do not need to be caught or declared. Example: NullPointerException, ArrayIndexOutOfBoundsException
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I have to write code for a load balancer. The code should be testable and imahoild be thread safe

Q1. Sort the list, after many queries
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Q2. LRU cache with multi level caching
Ans. 
LRU cache with multi level caching involves implementing a cache with multiple levels of storage, where the least recently used items are evicted first.
• Implement a two-level cache system with a primary cache (e.g. in-memory) and a secondary cache (e.g. disk-based).

• Use a data structure like a doubly linked list and a hash map to efficiently manage the cache and track the least recently used items.

• When an item is accesse...read more
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