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Palo Alto Networks Senior Software Engineer Interview Questions and Answers

Updated 6 Oct 2024

Palo Alto Networks Senior Software Engineer Interview Experiences

2 interviews found

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. System design - 1500 max inserting request to db a day max latency 60 se

I applied via Referral and was interviewed in Jul 2022. There were 4 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. L2/L3 layer questions
Round 2 - Technical 

(2 Questions)

  • Q1. Questions related to python coding .
  • Q2. Questions related to work u have done . And coding
Round 3 - Technical 

(1 Question)

  • Q1. Questions about networking , security profile
Round 4 - Technical 

(1 Question)

  • Q1. About networking protocols and coding rounds

Interview Preparation Tips

Interview preparation tips for other job seekers - Have u basics clear and have confidence on your work whatever u have done

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I was interviewed before Mar 2021.

Round 1 - Technical 

(3 Questions)

  • 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
  • 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
  • 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
Round 2 - Technical 

(1 Question)

  • 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
Round 3 - HR 

(3 Questions)

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

Interview Preparation Tips

Interview preparation tips for other job seekers - Do study basic Data Structure questions and also prepare for Low level design.
Do work on behavioral questions too.

Skills evaluated in this interview

Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
No response

I applied via Recruitment Consulltant and was interviewed in Jul 2023. There were 5 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Coding Test 

Coding string related programming

Round 3 - Coding Test 

Hacker rank data structure linked list

Round 4 - Technical 

(1 Question)

  • Q1. System design high level
Round 5 - Coding Test 

Hacker rank data structure trees

Interview Preparation Tips

Interview preparation tips for other job seekers - They will ghost you even if you clear all round
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Assignment 

Was asked to understand a project in python and translate it to NodeJS. This had to be done during the interview with you explaining you thought process through every step.

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Feb 2022. There were 5 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Coding Test 

Hacker rank codinv problems level medium

Round 3 - Technical 

(1 Question)

  • Q1. Coding round again D and S
Round 4 - Technical 

(1 Question)

  • Q1. System design tech dummies
Round 5 - HR 

(1 Question)

  • Q1. Common questions , why we should hire you , achievements

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare for D and S and system design depends on team and role in terms of difficulty
Round 1 - Technical 

(2 Questions)

  • 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

  • Answered by AI
  • 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.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basics. Be confident
. Give answer properly

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Apr 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all Resume tips
Round 2 - Aptitude Test 

Aptitude relates questions... It was modratley difficult

Round 3 - Technical 

(3 Questions)

  • Q1. Twchnical rouns. Qas easy... Asked questions oc C and some. Projects
  • 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

  • Answered by AI
  • 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...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Just give your best.
. Interview will be easy
Rest all was good

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Oct 2022. There were 5 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all Resume tips
Round 2 - Aptitude Test 

Checked general aptitude

Round 3 - Coding Test 

Multiple coding rounds each tougher than the last

Round 4 - Technical 

(1 Question)

  • Q1. Mostly related to Python and Kubernetes
Round 5 - HR 

(1 Question)

  • Q1. Mostly related to salaries
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
Selected Selected
Round 1 - Coding Test 

One take home assignment

Round 2 - Technical 

(2 Questions)

  • Q1. Questions on JS basics
  • Q2. Angular deep dive
Round 3 - HR 

(1 Question)

  • Q1. General discussion with hiring manager

Interview Preparation Tips

Interview preparation tips for other job seekers - Just focus more on JS fundamentals, Angular, NgRx, RxJs you will be good.
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Palo Alto Networks Interview FAQs

How many rounds are there in Palo Alto Networks Senior Software Engineer interview?
Palo Alto Networks interview process usually has 2-3 rounds. The most common rounds in the Palo Alto Networks interview process are Technical.
How to prepare for Palo Alto Networks Senior Software Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Palo Alto Networks. The most common topics and skills that interviewers at Palo Alto Networks expect are Python, Information Technology, Javascript, Linux and microsoft.
What are the top questions asked in Palo Alto Networks Senior Software Engineer interview?

Some of the top questions asked at the Palo Alto Networks Senior Software Engineer interview -

  1. Questions about networking , security prof...read more
  2. System design - 1500 max inserting request to db a day max latency 60...read more
  3. About networking protocols and coding rou...read more

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Palo Alto Networks Senior Software Engineer Interview Process

based on 1 interview

Interview experience

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Good
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Palo Alto Networks Senior Software Engineer Salary
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113% more than the average Senior Software Engineer Salary in India
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