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SDE - 1

Cisco
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4 rounds | 16 Coding problems

Interview preparation journey

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Preparation
Duration: 3 Months
Topics: Data Structures, DBMS, OS, Algorithms,DCN, Software Engineering,Oops
Tip
Tip

Tip 1 : Focus On DSA,OOPS,DBMS,OS,DCN
Tip 2 : Write only those things on resume that are familiar to you
Tip 3 : Try to give answer by giving real life examy don't give bookish answer

Application process
Where: Campus
Eligibility: Above 7 CGPA
Resume Tip
Resume tip

Tip 1 : Write only those things that are comfortable with
Tip 2 : Should have atleast 1 good development projects prefer full stack instead of ML Project

Interview rounds

01
Round
Medium
Online Coding Interview
Duration60 Minutes
Interview date8 Jul 2021
Coding problem0

It was consists of 25 MCQ. These MCQ are based on OOPS,DBMS,OS,DCN, Electronics.DBMS questions were little bit tough. Apart from above there was one question of coding related to recursion. I don't remember that question. It was on hacker rank and timing was around 8 PM.
Those who solved coding questions were shortlisted for SDE and others were shortlisted for consultation role

02
Round
Easy
Video Call
Duration60 Minutes
Interview date11 Jul 2021
Coding problem9

It started in morning 8.15 AM. There were two interviewer one was about 3-4 years of experience and one was about 20-25 years experience. They were very calm and asking questions with proper explanation. Be calm while giving this round.

1. Reverse Linked List

Moderate
15m average time
85% success
0/80
Asked in companies
CIS - Cyber InfrastructureInfo Edge India (Naukri.com)Cisco

Given a singly linked list of integers. Your task is to return the head of the reversed linked list.

For example:
The given linked list is 1 -> 2 -> 3 -> 4-> NULL. Then the reverse linked list is 4 -> 3 -> 2 -> 1 -> NULL and the head of the reversed linked list will be 4.
Follow Up :
Can you solve this problem in O(N) time and O(1) space complexity?
Problem approach

First I took one own example and explain them that the expected output should be this to get clarity on the question. 
After discussing the question properly I tried to solve by recursive approach. Now they asked can we do it without extra space so I explained them iterative approach

Try solving now

2. System Design Question

Which Data structures you will use to design a website like LinkedIn

Problem approach

I have told them that we can use Graphi data stry to design website like LinkedIn. I have also explained them about 1st Connection, 2nd Connection and 3rd Connection and 3rd+ Connection how displayed by the LinkedIn

3. DBMS Question

Asked about normalisation

Problem approach

I have explained them the normalisation concept

4. OS Question

Asked about deadlock

Problem approach

Explained the deadlock using real life example

5. Technical Question

The name of first computer processor

Problem approach

I didn't know the answer so I told them the same

6. React Questions

They asked questions about react native questions because those are part of my experience and everything that we present in my resume they covered in interview

7. Technical Questions

How you can scale the API

Problem approach

Part of my internship vso I explained them very well

8. DBMS Question

How can you get a desired number of records from a database

Problem approach

Using limit() method

9. Data Structure based Question

You have queue and array linkedlist and you have space constraints which DS you will use

Problem approach

I asked them queue can be made up of both array and linked list can you please tell here which DS is used for queue. They have asked to answer in both scenarios. I have explained them both scenarios and the were satisfied

03
Round
Easy
Video Call
Duration45 Minutes
Interview date11 Jul 2021
Coding problem3

This was MR round and started around 10 AM. It was taken by 1 manager

1. OOSE Question

Explain SDLC

Problem approach

Tip 1 : Take and example
Tip 2 : Give steps with that example

2. Basic HR Question

How you can handle dispute with your team mates

Problem approach

As I have faced this issue while my previous internship I told them exact steps that I followed there

3. Devops Question

What is Devops?

Problem approach

I have not herd about this so I told them same and after that she explained me what is devops

04
Round
Easy
HR Round
Duration5 Minutes
Interview date11 Jul 2021
Coding problem4

Was taken by HR around 12.30 PM. He was very polite and asked very few questions

1. Basic HR question

Tell me about yourself


 

Problem approach

Prepare a model answer and should not exceed more than 1 minute

2. Basic HR question

Why should we hire you

Problem approach

Tip 1: Research about company 
Tip 2: Research about role
Tip 3: Prepare A template and give answer from that

3. Basic HR question

Why you are doing Graduation from Kerala

 

Problem approach

I have told them diplomatic answer.
Prepare model answer

4. Basic HR question

Do you know about compensation?

Problem approach

I told them yes I have gone through the mail so he did not explained any think

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Skill covered: Programming

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