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Cisco Interview Questions, Process, and Tips
Top Cisco Interview Questions and Answers
- Q1. Snake and Ladder Problem Statement Given a 'Snake and Ladder' board with N rows and N columns, where positions are numbered from 1 to (N*N) starting from the bottom left ...read moreasked in Software Developer interview
- Q2. Find Row With Maximum 1's in a Sorted 2D Matrix You are provided with a 2D matrix containing only the integers 0 or 1. The matrix has dimensions N x M, and each row is s ...read moreasked in Software Engineer interview
- Q3. In a tournament with N teams, where in one team can play only one match per day, develop an algo which schedules the matches in the tournament. Each team shall play with ...read moreasked in Electronic Packaging Designer interview
Cisco Interview Experiences
371 interviews found
Anonymous
Interview Questionnaire
13 Questions
- Q1. #define clrscr() 100 main() { clrscr(); printf(?%d?,clrscr()); }
- Ans.
The code snippet defines a macro called clrscr() and then calls it in the main function.
The macro clrscr() is defined as 100, so when it is called, it will be replaced with 100.
The printf statement will print the value returned by clrscr(), which is 100.
The output of the code will be '100'.
- Q2. A triangle ABC is given, a line DE is paralel to base side and that cuts the triangle. The ratio of area of triangle to the area of trapezium .given DE/BC=3/5
- Ans.
The question asks about the ratio of the area of a triangle to the area of a trapezium formed by a parallel line cutting the triangle.
The given line DE is parallel to the base side of triangle ABC.
The ratio of DE to BC is 3:5.
We need to find the ratio of the area of triangle ABC to the area of the trapezium formed by DE and the base side of the triangle.
- Q3. Struct s1 { struct { struct {int x;}s2}s3}y; How to access x? ANS: y.s3.s2.x
- Ans.
To access x, use the following syntax: y.s3.s2.x
Accessing x requires navigating through the nested structures
Start with y, then access s3, followed by s2, and finally x
- Q4. Given two numbers m and n, write a method to return the first number r that is divisible by both (e.g., the least common multiple). ANS:Define q to be 1. for each prime number p less than m and n: find ...
- Ans.
The method returns the least common multiple (LCM) of two numbers m and n.
The method uses prime factorization to find the LCM.
It iterates through all prime numbers less than m and n.
For each prime number, it finds the largest power of the prime that divides both m and n.
The method then multiplies the current LCM by the prime raised to the maximum power.
Finally, it returns the computed LCM.
- Q5. There are set of coins of {50,25,10,5,1} paise in a box.Write a program to find the number of ways a 1 rupee can be created by grouping the paise
- Ans.
The program finds the number of ways to create 1 rupee using different coins.
Use a recursive function to iterate through all possible combinations of coins
Start with the largest coin and subtract its value from the target amount
Repeat the process with the remaining coins until the target amount becomes zero
Count the number of successful combinations
- Q6. ONE PUZZLE THAT I REMEMBERED. At the local model boat club, four friends were talking about their boats. There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owne...
- Q7. Main() { printf(?as?); printf(?hi?); printf(?is ?); } wat will b printed. 10. main() { unsigned short a=-1; unsigned char b=a; printf(?%d %d ?,a,b); } wat is o/p of the program
- Ans.
Answering two programming questions related to printf() function and data types.
In the first program, the output will be 'as hi is'.
In the second program, the output will be '-1 255'.
The first program uses printf() function to print three strings.
The second program demonstrates type conversion from unsigned short to unsigned char.
The value of -1 in unsigned short is converted to 255 in unsigned char.
- Q8. Given an array which is alternatively sorted. Find an element in it. e.g. 12,2,16,5,18,32,33,38
- Q9. Selective repeat widow size of sender & receiver 1 question
- Q10. Design an algorithm that, given a list of n elements in an array, finds all the elements that appear more than n/3 times in the list. The algorithm should run in linear time ( n >=0 ) You are expected ...
- Ans.
Algorithm to find elements appearing more than n/3 times in an array in linear time
Divide the array into three equal parts
Iterate through the array and count the occurrences of each element in each part
Check if the count of any element is greater than n/3
Return the elements that meet the condition
- Q11. In a tournament with N teams, where in one team can play only one match per day, develop an algo which schedules the matches in the tournament. Each team shall play with the other team once(same as designing the league matches of a Cricket tournament like IPL) He also asked me to optimise on days
- Ans.
An algorithm to schedule matches in a tournament with N teams, where each team plays only one match per day.
Create a round-robin schedule where each team plays every other team once.
Start by assigning each team a number.
Generate a schedule by pairing teams based on their numbers.
Optimize the schedule by minimizing the number of days required.
Consider using a graph-based approach to find the optimal schedule.
- Q12. Main() { int ret; ret=fork(); ret=fork(); ret=fork(); ret=fork(); if(!ret) printf(
- Ans.
The code snippet demonstrates the use of the fork() function to create multiple child processes.
The fork() function is used to create a new process by duplicating the existing process.
Each time fork() is called, it creates a new child process that starts executing from the same point as the parent process.
In the given code, fork() is called four times, resulting in a total of 16 processes (including the original parent...
- Q13. Bridges are used in which layer?
- Ans.
Bridges are used in the network layer of the OSI model.
Bridges are used to connect two or more network segments or LANs.
They operate at the data link layer (Layer 2) of the OSI model.
Bridges use MAC addresses to forward data packets between segments.
They can filter and forward network traffic based on MAC addresses.
Examples of bridges include Ethernet bridges and wireless bridges.
Interview Preparation Tips
Experience: 1.#define clrscr() 100
main()
{
clrscr();
printf(?%d?,clrscr());
}
2.A triangle ABC is given, a line DE is paralel to base side and that cuts the triangle. The ratio of area of triangle to the area of trapezium .given DE/BC=3/5.
3. struct s1 { struct { struct {int x;}s2}s3}y;
How to access x? ANS: y.s3.s2.x
4.Given two numbers m and n, write a method to return the first number r that is divisible by both (e.g., the least common multiple).
ANS:Define q to be 1.
for each prime number p less than m and n:
find the largest a and b such that p^a m and p^b n
let q = q * p^max(a, b)
return q
5.There are set of coins of {50,25,10,5,1} paise in a box.Write a program to find the number of ways a 1 rupee can be created by grouping the paise.
6. ONE PUZZLE THAT I REMEMBERED.
At the local model boat club, four friends were talking about their boats.
There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owned two boats. No friend had two boats of the same colour.
Alan didn't have a yellow boat. Brian didn't have a red boat, but did have a green one. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat. Charles had a yellow boat. Darren had a blue boat, but didn't have a green one.
Can you work out which friend had which coloured boats?
7.main()
{
printf(?as?);
printf(?hi?);
printf(?is
?);
} wat will b printed.
10. main()
{
unsigned short a=-1;
unsigned char b=a;
printf(?%d %d ?,a,b);
}
wat is o/p of the program
8.Given an array which is alternatively sorted. Find an element in it.
e.g. 12,2,16,5,18,32,33,38
9.selective repeat widow size of sender & receiver 1 question.
10.main()
{
int *i;
int s=(int *)malloc(10*sizeof(int));
for (i=0;i<10;i++)
{
printf(?%d?,i*i)
}
whats the output?
11.Design an algorithm that, given a list of n elements in an array, finds all the elements that appear more than n/3 times in the list. The algorithm should run in linear time ( n >=0 )
You are expected to use comparisons and achieve linear time. No hashing/excessive space/ and don't use standard linear time deterministic selection algo
12. In a tournament with N teams, where in one team can play only one match per day, develop an algo which schedules the matches in the tournament.Each team shall play with the other team once(same as designing the league matches of a Cricket tournament like IPL)
He also asked me to optimise on days
13.main()
{
int ret;
ret=fork();
ret=fork();
ret=fork();
ret=fork();
if(!ret)
printf("one");
else
printf("two");
}
14.Bridges are used in which layer?
College Name: NA
Skills evaluated in this interview
Top Cisco Electronic Packaging Designer Interview Questions and Answers
Electronic Packaging Designer Interview Questions asked at other Companies
Selected
I applied via Job Portal and was interviewed in Dec 2024. There were 4 interview rounds.
Topics - mcq of algorithms, networking, dbms
(2 Questions)
- Q1. Based on resume
- Q2. Questions on linked list, tree,
(2 Questions)
- Q1. About how you approach a problem
- Q2. Managerial questions on situations
(1 Question)
- Q1. Basic hr questions
Apprenticeship Trainee Interview Questions asked at other Companies
It is a very Easy Aptitude test, with only general questions
(2 Questions)
- Q1. Technical general questions were asked
- Q2. Basic questions about the position you've applied for
(3 Questions)
- Q1. Technical interview - Regarding the position you've applied for.
- Q2. Managerial interview - Normal conversation easy to crack
- Q3. Hr Interview - General questions about relocation, salary and queries you have if any.
Apprentice Trainee Interview Questions asked at other Companies
What people are saying about Cisco
Selected
I was interviewed in Jan 2025.
(2 Questions)
- Q1. Technical discussion
- Q2. One-to-one round , technical discussion
(1 Question)
- Q1. HR Round, salary
Manager - Business Intelligence Interview Questions asked at other Companies
Cisco interview questions for popular designations
I was interviewed in Aug 2024.
Online assessments consisting of Linked list , stacks , string manipulations with medium difficulty for string manipulation and easy traversal for linked lists.
(3 Questions)
- Q1. Write code for rate limiter in python or any language? If don't know rate limiter , then they will explain the logic but needs to be alligned with rate limiting logic.
- Ans.
Rate limiter code implementation in Python
Use a dictionary to store the timestamps of each request
Check the dictionary to see if the request should be allowed based on the rate limit
Update the dictionary with the current timestamp for each request
- Q2. Check the logic of your code , if you find any limitations.
- Ans.
Check code logic for limitations
Review code for potential edge cases
Test code with different inputs to identify any issues
Consider scalability and performance implications of code
Ensure error handling is robust and comprehensive
- Q3. Managerial and Technical Round 3 with same set of questions as above.
(2 Questions)
- Q1. Kubernetes pods , deployments , replicas , deamon sets , aws services and experience in mitigating issues in devops.
- Q2. Explain full pipeline which you worked from Code Integration to deployment and security check. What all python library used , have you used flask and other libraries for request and response.
- Ans.
I have experience working on full pipeline from code integration to deployment with security checks. Used Flask and other Python libraries for request and response handling.
Used Git for version control and continuous integration tools like Jenkins for automated builds
Utilized Docker for containerization and Kubernetes for orchestration
Implemented security checks using tools like SonarQube and OWASP ZAP
Used Flask for bu...
Interview Preparation Tips
Get interview-ready with Top Cisco Interview Questions
Radheshyam Dhote
Write a code for Fibonacci series?
(1 Question)
- Q1. What is aws and explain how you deployed your project.
- Ans.
AWS is a cloud computing platform that offers a wide range of services for storage, computing, networking, databases, and more.
AWS stands for Amazon Web Services
I deployed my project on AWS using services like EC2 for virtual servers, S3 for storage, and RDS for databases
I used AWS Elastic Beanstalk for easy deployment and scaling of my application
I configured security groups and IAM roles to ensure secure access to my
(1 Question)
- Q1. What is AI, explain its application
- Ans.
AI stands for Artificial Intelligence, it is the simulation of human intelligence processes by machines.
AI is used in various applications such as virtual assistants (e.g. Siri, Alexa), recommendation systems (e.g. Netflix, Amazon), autonomous vehicles, and facial recognition technology.
AI can be applied in healthcare for tasks like disease diagnosis, personalized treatment plans, and drug discovery.
AI is also used in ...
Associate Engineer Interview Questions asked at other Companies
Jobs at Cisco
(2 Questions)
- Q1. Development topics: LWC related questions, trigger, batch apex, governor limits, future method
- Q2. Admin Topics: Flow, price rules, product rules, some scenario based questions
(2 Questions)
- Q1. LWC, Aura, Test Class, Best Practice - trigger, Decorators, Error Handling
- Q2. Rest API, Deployments, Some scenario based questions
(1 Question)
- Q1. Managerial Round: Intro & Scenario based questions
Selected
I applied via Instagram and was interviewed in Jul 2024. There were 3 interview rounds.
(2 Questions)
- Q1. It's all from your Resume only Basic coding questions
- Q2. Be Honest in resume Many technical questions It's about 30 to 40 mins Be confident Show you are enthusiastic and willingness to learn
(3 Questions)
- Q1. Its all about your understanding of technologies Your opinions with clarity
- Q2. Be active and give full pledged answers with crystal clear explanation Otherwise they will not move forward
- Q3. Being confident is only the thing
(3 Questions)
- Q1. Explain about yourself
- Ans.
I am a highly motivated and detail-oriented individual with a strong background in project management and team leadership.
Experienced in project management and team leadership
Detail-oriented and highly motivated
Strong communication and interpersonal skills
- Q2. The HR explain the role package and everything
- Q3. This is also elimination round.Being active is enough
Apprentice Interview Questions asked at other Companies
I was interviewed in Aug 2024.
Code-with-cisco having coding questions and mcq
(2 Questions)
- Q1. Different scheduling algorithms in OS?
- Ans.
Different scheduling algorithms in OS determine how tasks are prioritized and executed.
First-Come, First-Served (FCFS)
Shortest Job Next (SJN)
Round Robin (RR)
Priority Scheduling
Multi-Level Queue Scheduling
- Q2. Resume go-through: projects and intern
(2 Questions)
- Q1. Networking: Transfer packet from one device to another
- Q2. Contact dictionary- data structure used and time complexity
- Ans.
Contact dictionary can be implemented using hash table for fast lookups with O(1) time complexity.
Use a hash table to store contacts with keys as names and values as contact information.
Example: { 'John Doe': '555-1234', 'Jane Smith': '555-5678' }
Time complexity for searching, inserting, and deleting contacts is O(1) with a hash table.
(2 Questions)
- Q1. Basic networking
- Q2. Why cisco, what is cisco?
- Ans.
Cisco is a multinational technology conglomerate known for networking hardware, software, and services.
Cisco is a leading provider of networking equipment and solutions.
They offer a wide range of products including routers, switches, and security devices.
Cisco also provides software solutions for network management and security.
The company offers services such as consulting, technical support, and training.
Cisco is kno...
Skills evaluated in this interview
Embedded Software Engineer Interview Questions asked at other Companies
It was around 1 hour coding test based one dsa.
(1 Question)
- Q1. It will be related to your work and project.
(1 Question)
- Q1. Questions related to techstack
Senior Cloud Engineer Interview Questions asked at other Companies
Ujjwal Pandey
Selected
I applied via Company Website and was interviewed in Sep 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Self , introduction
- Q2. Osi model , networing question , projects internship
(2 Questions)
- Q1. This is mr , focus on mainly resume
- Q2. Situation based question
Interview Preparation Tips
Apprentice Interview Questions asked at other Companies
Cisco Interview FAQs
Some of the top questions asked at the Cisco interview -
The duration of Cisco interview process can vary, but typically it takes about less than 2 weeks to complete.
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