Palo Alto Networks Associate Interview Questions and Answers

Online test was hackerrank was was og avg difficulty

Q1. Second round was of 1 hr of which 30 mins divided into understanding my current project architecture. And second half was on what i worked and how I worked and what skills I have
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Assignment was straightforward which could be done using trie. Did it in 1/6th throughout time for given queries then mentioned allowed still no reply. Keep on asking engineering manager and hr to which they replied not upto the mark.

Q1. Reverse linked list using the recursion
Ans. 
Reverse a linked list using recursion
• Create a recursive function that takes the head of the linked list as input

• Base case: if the head is null or the next node is null, return the head

• Recursively call the function with the next node as input

• Set the next node's next pointer to the current node

• Set the current node's next pointer to null

• Return the new head of the reversed linked list
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Q2. Find max number in the linked list using stack.
Ans. 
To find max number in linked list using stack.
• Create an empty stack.

• Traverse the linked list and push each element onto the stack.

• Pop elements from the stack and compare with max value.

• Return the max value.
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Basics of C, pointer arithmetic, some output prediction mainly focused on pre and post increment operators, write code to print the character with most occurance in a string with count.

Q1. Data structures and algorithms, files, sockets, synchronous/asynchronous operations, multithreading concepts, synchronization primitives, memory management, VoIP basics, SIP callflow, SIP registration, sub...read more
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Hacker rank codinv problems level medium

Q1. Coding round again D and S
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Q1. System design tech dummies
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Q1. Common questions , why we should hire you , achievements
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Aptitude relates questions... It was modratley difficult

Q1. Twchnical rouns. Qas easy... Asked questions oc C and some. Projects
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Q2. Reverse linked list using recursion
Ans. 
Reverse a linked list using recursion
• Create a recursive function that takes the head of the linked list as input

• Base case: if the head is null or the next node is null, return the head

• Recursively call the function with the next node as input

• Set the next node's next pointer to the current node

• Set the current node's next pointer to null

• Return the new head of the reversed linked list
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Q3. What is difference between mutex semaphore?
Ans. 
Mutex is a locking mechanism to ensure exclusive access to a shared resource, while semaphore is a signaling mechanism to control access to a shared resource.
• Mutex allows only one thread to access the shared resource at a time, while semaphore can allow multiple threads to access the shared resource simultaneously.

• Mutex is binary, meaning it has only two states - locked and unlocked, while semaphore can have multiple s...read more
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Checked general aptitude

Multiple coding rounds each tougher than the last

Q1. Mostly related to Python and Kubernetes
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Q1. Mostly related to salaries
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Date&time, train, distance

One real world problem was given, i have to prepare a ppt for feasible solution about that given problem

Q1. Tell me about yourself question related to ppt networking quesiton some DBMS question 2 dsa question some scenario based question related to job profile
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One hour Leet code medium question

Q1. Golang related questions and Question on projects done.
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