NetApp Intern Interview Questions and Answers

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
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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
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Logical reasoning And aptitude test

C++, python and Java programming

Karat took 2 rounds of coding test

Q1. Tree based hard level question...
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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
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Q3. Design question LRU cache
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