DLT Lab Technologies Angular Developer Interview Questions and Answers

30 mins Aptitude Question

30 mins - 3 Coding Question

Q1. Describe Rest API
Ans. 
Rest API is a set of rules and conventions for building and interacting with web services using HTTP methods.
• Rest API stands for Representational State Transfer Application Programming Interface.

• It uses standard HTTP methods like GET, POST, PUT, DELETE to perform CRUD operations.

• RESTful APIs use URLs to access resources, and return data in JSON or XML format.

• Stateless communication allows for scalability and flexibilit...read more
Answered by AI
Add your answer
Q2. What is various Response code. Diffenrence b/w 200 & 201, 400 & 403
Ans. 
Response codes indicate the status of a HTTP request. 200 & 201 are success codes, while 400 & 403 are client error codes.
• 200 - OK: Request was successful

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

• 400 - Bad Request: The server cannot process the request due to a client error

• 403 - Forbidden: The server understood the request, but refuses to authorize it
Answered by AI
Add your answer

Q1. RDBMS related questions asked
Add your answer
Q2. SQL login building related questions
Add your answer

60min of aptitude and coding test

2 questions on coding test

Ten reasoning questions, ten quantitative questions, and fifteen technical questions involving pseudo code, for a total of thirty-five questions to be completed in thirty minutes.

Three questions to solve test cases from LeetCode and similar platforms: one from arrays, one from strings, and one from stacks.

Q1. Many questions related to development , some reasoning questions, simple programs and most form resume
Add your answer

Q1. To write a program for some sorting tech etc.. basic DSA
Add your answer

Q1. About personality development and Resume
Add your answer

Q1. Operate or control a particualar typing of data device that is attached to a computer
Add your answer
Q2. Operate or contriol
Add your answer
Q3. In computing a device driver is a computer program that operates or controls a particular type of device that is attached to a computer or automaton
Add your answer
Q4. To perform some manual act upon a human body in a methodical manner, and usually with instruments, with a view to restore soundness or health, as in amputation, lithotomy, etc.
Add your answer

Q1. 30min technical round
Add your answer
Q2. Project manager round
Add your answer
Q3. HR round for salary discussion
Add your answer

20 questions were given.
aptitude + simple coding output based.

5 questions were shared on a doc file. We need to code them paste their solutions in the file. Level was easy to medium. Array-string based Questions.

Q1. There Were 3 Technical rounds. In 1st Round Basic coding Questions were Asked on Array like find minimum angle between hour and minute hand. 0,1 array sort and there was another question too which I don't...read more
Add your answer
Q2. Find minimum angle between hour and minute hand.
Ans. 
Find minimum angle between hour and minute hand.
• Calculate the angle made by hour hand with 12 o'clock position and minute hand with 12 o'clock position.

• Calculate the difference between the two angles.

• If the difference is greater than 180 degrees, subtract it from 360 degrees to get the minimum angle.
Answered by AI
Add your answer
Q3. 0, 1 array sort (keep complexity low)
Ans. 
Sort an array of 0s and 1s with low complexity.
• Use two pointers, one at the beginning and one at the end of the array.

• Swap 0s from the beginning with 1s from the end until the pointers meet.

• Time complexity: O(n), space complexity: O(1).
Answered by AI
Add your answer

Q1. Then on next day Technical Round 2 happened Same another Interviewer and same process. Round was 1 hour long. I was given a question and I had to solve it. I was not asked puzzles but some of my friends we...read more
Add your answer
Q2. Maximum span of 1 in a 0,1 array
Ans. 
Find the maximum span of 1 in a 0,1 array.
• Iterate through the array and keep track of the first and last occurrence of 1.

• Calculate the difference between the last and first occurrence of 1.

• Repeat the process for all 1's in the array and return the maximum difference.
Answered by AI
Add your answer
Q3. Upside down triangle pattern
Add your answer

Q1. Next day Technical Round 3 This time my interviewer was a Senior Engineer Interview round was 1 hour+ I was given 2 coding questions then hr questions were asked. In hr they asked me a lot regarding my pro...read more
Add your answer
Q2. First non repeating Character
Ans. 
Find the first non-repeating character in a string.
• Create a hash table to store the frequency of each character in the string.

• Iterate through the string and update the frequency in the hash table.

• Iterate through the string again and return the first character with a frequency of 1.
Answered by AI
Add your answer
Q3. Sort a binary array using one traversal and no extra space
Ans. 
Sort a binary array using one traversal and no extra space.
• Use two pointers, one starting from the beginning and one from the end of the array.

• Swap the elements if the left pointer points to 1 and the right pointer points to 0.

• Continue traversing until the pointers meet in the middle.
Answered by AI
View 1 more answer