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Cloudflare Interview Questions and Answers

Updated 4 Dec 2024

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Interview Questions & Answers

user image Anonymous

posted on 17 Oct 2024

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. Walk me through your resume
  • Ans. 

    Experienced cyber security professional with a background in incident response and coordination.

    • Started career as a security analyst at XYZ company

    • Promoted to team lead for incident response team at ABC company

    • Managed global cyber incident response for DEF organization

  • Answered by AI
  • Q2. What is your experience with incident response?
  • Ans. 

    I have over 10 years of experience in incident response, including leading teams in responding to cyber attacks.

    • Led incident response teams in identifying and mitigating cyber attacks

    • Developed incident response plans and procedures to ensure quick and effective response

    • Performed post-incident analysis to identify root causes and improve response processes

  • Answered by AI

Sopra Steria

Success to our employee's well-being? A work-life balance that's simply unbeatable.

Our employees have rated us 4 for Work-Life Balance on AmbitionBox

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - One-on-one 

(1 Question)

  • Q1. Tell me about yourself

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Intern Interview Questions & Answers

FireEye user image Siriguppa Aditya

posted on 15 May 2017

I was interviewed before May 2016.

Interview Preparation Tips

Round: Test
Experience: Test had all kinds of questions apti+c-apti+cse concepts+coding.
It covered all the things related to computer science.There were 3 coding questions among 39
Duration: 1 hour
Total Questions: 39

Round: Technical Interview
Experience: Resume Related

Round: Technical Interview
Experience: Resume related and tested my knowledge on networking

I applied via Referral

Interview Questionnaire 

15 Questions

  • Q1. Program to swap kth and kth to last element of a singly linked list in one pass. You are not given the length of the linked list before hand
  • Ans. 

    Swap kth and kth to last element of a singly linked list in one pass without knowing the length of the list.

    • Traverse the linked list using two pointers, one starting from the head and the other starting from kth node.

    • When the second pointer reaches the end of the list, the first pointer will be pointing to the kth to last node.

    • Swap the values of kth and kth to last node.

    • Handle edge cases such as k being out of bounds o...

  • Answered by AI
  • Q2. Program to reverse the ordering of words in a sentence
  • Ans. 

    Program to reverse the ordering of words in a sentence

    • Split the sentence into an array of words

    • Reverse the array

    • Join the array into a sentence

  • Answered by AI
  • Q3. Program to find the intersection point of two singly linked lists in O(n)
  • Ans. 

    Program to find intersection point of two singly linked lists in O(n)

    • Traverse both lists and find their lengths

    • Move the head of the longer list by the difference in lengths

    • Traverse both lists in parallel until intersection point is found

    • Return the intersection point

  • Answered by AI
  • Q4. Program to reverse a singly linked list both recursively and iteratively
  • Ans. 

    Program to reverse a singly linked list both recursively and iteratively

    • Iteratively: Use three pointers to reverse the links between nodes

    • Recursively: Use a recursive function to reverse the links between nodes

    • In both approaches, update the head and tail pointers accordingly

  • Answered by AI
  • Q5. There are 12 balls which are identical in size and appearance but one is an odd weight (could be light or heavy). Find it in minimum number of weighings using a balance
  • Ans. 

    Find odd weight ball among 12 identical balls using a balance in minimum weighings.

    • Divide balls into 3 groups of 4 each

    • Weigh any 2 groups against each other

    • If both groups weigh the same, the odd ball is in the third group

    • If one group is heavier, weigh any 2 balls from that group against each other

    • If they weigh the same, the odd ball is the remaining one

    • If one ball is heavier, it is the odd ball

    • Repeat the process with t

  • Answered by AI
  • Q6. Program to reverse a singly linked list in groups of k recursively
  • Ans. 

    A program to reverse a singly linked list in groups of k using recursion.

    • Create a recursive function that takes the head of the linked list and the group size as parameters.

    • If the remaining list has less than k nodes, return the head as it is.

    • Reverse the first k nodes by recursively calling the function for the next group.

    • Connect the reversed group to the remaining list.

    • Return the new head of the reversed list.

  • Answered by AI
  • Q7. Program to find the length of the longest substring without repeating characters in a string
  • Ans. 

    Program to find length of longest substring without repeating characters in a string.

    • Use a sliding window approach to traverse the string

    • Use a hash set to keep track of unique characters in the current substring

    • Update the length of longest substring without repeating characters as you traverse the string

  • Answered by AI
  • Q8. You are given two cubes. Represent the date of a month (01 ­ 31) using both the cubes by placing numbers on the given cubes
  • Ans. 

    Representing date of a month using two cubes with numbers 0-9 on each face

    • Assign numbers 0-9 on each face of both cubes

    • Use one cube to represent tens digit and other for ones digit

    • Rotate cubes to display desired date

    • Example: Cube 1 - 0, 1, 2, 3, 4, 5; Cube 2 - 0, 1, 2, 6, 7, 8; To represent 23, Cube 1 shows 2 and Cube 2 shows 3

  • Answered by AI
  • Q9. Given an array containing repeated characters, find the character repeated most number of times
  • Ans. 

    Find the character repeated most number of times in an array of strings.

    • Create a dictionary to store character count

    • Iterate through each string and character

    • Return the character with highest count

  • Answered by AI
  • Q10. Trace the output of a C/C++ code snippet containing extensive pointers and references
  • Ans. 

    Answering a question on tracing output of C/C++ code snippet with pointers and references

    • Understand the code and identify all pointers and references

    • Trace the values of each pointer and reference at each step

    • Follow the flow of the code to determine the final output

  • Answered by AI
  • Q11. Explain segmentation fault
  • Ans. 

    Segmentation fault is a type of error that occurs when a program tries to access a memory location that it is not allowed to access.

    • Segmentation fault is also known as a segfault.

    • It is a common error in C and C++ programming languages.

    • It occurs when a program tries to read or write to a memory location that it does not have permission to access.

    • This can happen when a program tries to access an uninitialized pointer or ...

  • Answered by AI
  • Q12. Explain BFS and DFS
  • Ans. 

    BFS and DFS are graph traversal algorithms used to search for nodes in a graph.

    • BFS stands for Breadth First Search and explores all the nodes at the current depth before moving to the next level.

    • DFS stands for Depth First Search and explores as far as possible along each branch before backtracking.

    • BFS uses a queue data structure while DFS uses a stack or recursion.

    • BFS is useful for finding the shortest path in an unwei...

  • Answered by AI
  • Q13. 4. Which traversal would I prefer for finding a cycle in a graph?
  • Ans. 

    I would prefer Depth First Search (DFS) traversal for finding a cycle in a graph.

    • DFS is better suited for finding cycles in a graph as it explores deeper into the graph before backtracking.

    • DFS can detect a cycle in a graph in O(V+E) time complexity.

    • DFS can be implemented using recursion or a stack.

    • Breadth First Search (BFS) can also be used to find cycles but it is less efficient than DFS.

    • In DFS, we can keep track of v

  • Answered by AI
  • Q14. Explain time and space complexities of hashmap
  • Ans. 

    Hashmap has constant time complexity for insertion, deletion, and retrieval, but requires additional space.

    • Hashmap provides constant time complexity O(1) for insertion, deletion, and retrieval operations on average.

    • The space complexity of a hashmap is proportional to the number of elements stored in it.

    • Hashmap uses a hash function to map keys to indices in an underlying array, which allows for efficient lookup.

    • In case ...

  • Answered by AI
  • Q15. Design the underlying data structure behind a login page
  • Ans. 

    The data structure behind a login page should store user credentials securely.

    • Use a database to store user information

    • Hash and salt passwords for security

    • Include fields for username, email, password, and possibly additional information

    • Consider implementing two-factor authentication

  • Answered by AI

Interview Preparation Tips

Skills:
College Name: NA

Skills evaluated in this interview

I was interviewed before Oct 2020.

Round 1 - Face to Face 

(2 Questions)

Round duration - 90 minutes
Round difficulty - Medium

Interviewer was cool, he started with basics of c and c++ and oops concept and extended to data structures .

  • Q1. 

    Count Subsequences Problem Statement

    Given an integer array ARR of size N, your task is to find the total number of subsequences in which all elements are equal.

    Explanation:

    A subsequence of an array i...

  • Ans. 

    Count the total number of subsequences in which all elements are equal in an integer array.

    • Iterate through the array and count the frequency of each element.

    • Calculate the total number of subsequences for each element using the formula (frequency * (frequency + 1) / 2).

    • Sum up the total number of subsequences for all elements to get the final result.

  • Answered by AI
  • Q2. 

    Kevin's Stack Problem

    Kevin requires assistance in reversing a string using the concept of a stack. Help Kevin by providing a solution that will reverse the string 'S' using a stack. The strings will only...

  • Ans. 

    Reverse a string using a stack

    • Create a stack to store characters of the input string

    • Pop characters from the stack to reverse the string

    • Reconstruct the reversed string from the popped characters

  • Answered by AI
Round 2 - HR 

Round duration - 30 minutes
Round difficulty - Easy

It was an easy round interviewer basically asked questions about family, goals and education background.

Interview Preparation Tips

Eligibility criteria7 CGpaZscaler interview preparation:Topics to prepare for the interview - Data Structures, Algorithm, OOPS, Sql, logical reasoning , aptitudeTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Stick on the basics 
Tip 2 : practice ds as much as you can

Application resume tips for other job seekers

Tip 1 : keep it of one page
Tip 2 : don't put false things on resume and add atleast 1 good project.

Final outcome of the interviewSelected

Skills evaluated in this interview

I applied via Newspaper Ad and was interviewed before Mar 2021. There were 2 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 - Aptitude Test 

Interview Preparation Tips

Interview preparation tips for other job seekers - Just be confident in whatever you say
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Data structures, Algorithm
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Approached by Company and was interviewed before Jul 2023. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. What is ng-container
  • Ans. 

    ng-container is a structural directive in Angular used to group elements without creating an extra element in the DOM.

    • ng-container is used to group elements together without adding an extra element to the DOM

    • It is often used with structural directives like *ngIf and *ngFor to apply logic to multiple elements

    • ng-container is not rendered in the final DOM, making it useful for organizing code without affecting the layout

  • Answered by AI
  • Q2. Show the list of values using ngFor
  • Ans. 

    Using ngFor to display a list of values in Angular

    • Use ngFor directive in Angular to iterate over an array of strings

    • Bind the array of strings to a template using ngFor

    • Example:

      • {{value}}

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. General questions from the product manager and about project I have worked.
Round 3 - HR 

(1 Question)

  • Q1. Generally question and salary negotiation

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Oct 2022. There were 4 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 - HR 

(1 Question)

  • Q1. Experience discussions
Round 3 - Coding Test 

Pair programming with engineer

Round 4 - Technical 

(1 Question)

  • Q1. Kubernetes practical applications
  • Ans. 

    Kubernetes is used for container orchestration, scaling, and management in cloud-native applications.

    • Automating deployment, scaling, and management of containerized applications

    • Ensuring high availability and fault tolerance

    • Facilitating easy scaling of applications based on demand

    • Managing updates and rollbacks seamlessly

    • Supporting multi-cloud deployments

    • Example: Running microservices architecture on Kubernetes for a sca

  • Answered by AI

Skills evaluated in this interview

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

I applied via LinkedIn and was interviewed in Aug 2024. There were 2 interview rounds.

Round 1 - Coding Test 

Dataweave logic questions

Round 2 - HR 

(2 Questions)

  • Q1. Basic HR questions
  • Q2. Prepare basic interview answers

Interview Preparation Tips

Interview preparation tips for other job seekers - Easy and fast interview process
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Cloudflare Interview FAQs

How many rounds are there in Cloudflare interview?
Cloudflare interview process usually has 1 rounds. The most common rounds in the Cloudflare interview process are One-on-one Round.
How to prepare for Cloudflare 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 Cloudflare. The most common topics and skills that interviewers at Cloudflare expect are DNS, SAN, Sales Operations, Sanction Screening and Python.
What are the top questions asked in Cloudflare interview?

Some of the top questions asked at the Cloudflare interview -

  1. What is your experience with incident respon...read more
  2. Tell me about yours...read more

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