Dell Software Engineer Level 1 Interview Questions and Answers

Q1. What is your weakness
Add your answer
Q2. What is pn junction diode
Ans. 
A pn junction diode is a semiconductor device that allows current to flow in one direction only.
• Consists of p-type and n-type semiconductor materials

• When forward biased, allows current to flow easily

• When reverse biased, blocks current flow
Answered by AI
Add your answer

Q1. Linux vs Windows
Ans. 
Linux is preferred for server-side development due to its stability and security, while Windows is more commonly used for desktop applications.
• Linux is open-source and free, making it cost-effective for development.

• Windows has a larger user base and more compatibility with software and hardware.

• Linux is known for its stability and security, making it a popular choice for server-side development.

• Windows is more commonly...read more
Answered by AI
Add your answer
Q2. Singleton Class
Add your answer
Q3. Fail Fast vs Fail Safe
Ans. 
Fail Fast focuses on detecting errors as soon as possible, while Fail Safe aims to continue operation despite errors.
• Fail Fast: Emphasizes immediate error detection to prevent further issues.

• Fail Safe: Prioritizes continued operation even in the presence of errors.

• Example: Fail Fast is commonly used in software development to catch bugs early in the development process.

• Example: Fail Safe is often seen in systems where ...read more
Answered by AI
Add your answer
Q4. HashMap and ConcurrentHashMap
Add your answer
Q5. Immutable class
Add your answer

Difficult Coding question.

Q1. Architecture design
Add your answer
Q2. Dont remember question
Add your answer
Q3. Explained desig
Add your answer

DSA Based - Graph, Trees

Q1. Trie Implementation
Ans. 
Trie is a tree data structure used for efficient retrieval of key-value pairs.
• Trie is also known as prefix tree.

• Each node in a trie represents a single character of a key.

• Trie is commonly used in autocomplete and spell checking algorithms.

• Example: Inserting 'apple' and 'app' into a trie would result in a structure where 'app' is a prefix of 'apple'.
Answered by AI
Add your answer
Q2. LRU Implementation
Ans. 
LRU (Least Recently Used) is a cache eviction policy that removes the least recently used items first.
• LRU cache stores key-value pairs with a maximum capacity.

• When the cache is full, the least recently used item is removed to make space for new items.

• Each time a key is accessed, it is moved to the front of the cache to indicate it was recently used.
Answered by AI
Add your answer

About ai
today generation

Easy to write with simole loetters to

Very easy to manipulate with this code

Aptitude duration One hours
Level moderate

Coding Test Duration 3 hours
Level moderate to hard