Securonix Sdet-I Interview Questions and Answers

Dataweave logic questions

Q1. Basic HR questions
Add your answer
Q2. Prepare basic interview answers
Add your answer

Easy problem on java

Q1. Technical discussion
Add your answer

Q1. Threading: Write and use a mutex?
Ans. 
A mutex is a synchronization primitive that ensures only one thread can access a resource at a time.
• Create a mutex object using the appropriate library or language-specific function.

• Lock the mutex before accessing the shared resource to prevent other threads from accessing it.

• Unlock the mutex after finishing the operation on the shared resource to allow other threads to access it.

• Example: pthread_mutex_t mutex; pthread...read more
Answered by AI
Add your answer
Q2. Find the memory leak in a given set of code.
Ans. 
Identify memory leak in code
• Check for any dynamically allocated memory that is not being freed

• Look for any infinite loops or recursive functions that consume memory

• Use memory profiling tools like Valgrind to detect leaks

• Check for any global variables that are not properly managed
Answered by AI
Add your answer

Q1. How to check a number is power of 2
Ans. 
To check if a number is a power of 2, we can use bitwise operations.
• A power of 2 has only one bit set to 1, so we can use the bitwise AND operator to check if the number is a power of 2.

• If n is a power of 2, then n & (n-1) will be 0.

• For example, 8 (1000 in binary) is a power of 2, and 8 & 7 (0111 in binary) is 0.
Answered by AI
Add your answer
Q2. Sort a stack without using another data structure
Ans. 
Sort a stack without using another data structure
• Use recursion to pop the top element and insert it at the bottom of the remaining stack

• Repeat until the stack is sorted in ascending order

• Time complexity: O(n^2), space complexity: O(n) due to recursion
Answered by AI
Add your answer
Q3. Check weather array have continuous increasing than decreasing value
Ans. 
Check if array has continuous increasing and decreasing values
• Loop through the array and check if each element is greater than the previous one

• Once you find the maximum element, check if the remaining elements are in decreasing order

• If yes, return true else false
Answered by AI
Add your answer

Q1. Design a cricinfo (LLD)
Ans. 
Design a cricinfo (LLD)
• Identify the entities: players, teams, matches, scorecards, tournaments, etc.

• Define the relationships between entities

• Create a database schema to store the data

• Implement APIs to fetch and update data

• Design a UI to display the information

• Consider scalability and performance

• Ensure data security and privacy
Answered by AI
Add your answer

Q1. Share details of your previous job.
Add your answer
Q2. Why should we hire you?
Add your answer
Q3. What are your strengths and weaknesses?
Add your answer

Logical reasoning And aptitude test

C++, python and Java programming

Codility coding rounds , where code execution is mandatory and system design qiestions

Q1. Again execute code and technical questions
Add your answer

Q1. One more coding test and tech questions
Add your answer

Q1. Design patterns
Add your answer
Q2. Design Patterns , scenario based
Add your answer

Karat took 2 rounds of coding test

Q1. Tree based hard level question...
Add your answer
Q2. Diameter of tree but nodes are strings
Ans. 
To find the diameter of a tree with nodes as strings, convert strings to integers for calculations.
• Convert strings to integers for calculations

• Use depth-first search to find the longest path between two nodes
Answered by AI
Add your answer
Q3. Design question LRU cache
Add your answer