OodlesTechnologies Devops Engineer Interview Questions and Answers

General aptitude questions

Q1. Basic HR interview questions, they also give you a scenario for which you have to draft a sample e-mail.
Add your answer

Q1. This interview is with the Hiring manager. Basic questions about yourself , last job and role. They also give you some conditions and wish to hear your replies and how take it.
Add your answer
Q2. Basic Questions on the technology for which you have applied.
Add your answer

Q1. What is VPN virtual private network?
Ans. 
VPN is a secure connection between two or more devices over the internet.
• VPN encrypts data to ensure privacy and security

• It allows remote access to a private network

• It can be used to bypass geo-restrictions and access blocked content

• Examples include OpenVPN, Cisco AnyConnect, and NordVPN
Answered by AI
Add your answer
Q2. Specifications about ping cmd
Ans. 
Ping cmd is a network diagnostic tool used to test connectivity between two devices.
• Ping sends ICMP packets to the destination device and measures the response time.

• It can be used to test network latency, packet loss, and network congestion.

• Ping can also be used to determine the IP address of a device.

• Ping can be run from the command prompt on Windows, macOS, and Linux systems.

• Ping can be used with various options such...read more
Answered by AI
Add your answer
Q3. Explain how to dual boot system
Ans. 
Dual booting allows two operating systems to be installed on one computer, giving the user the option to choose which to use.
• Create a separate partition for each operating system

• Install the first operating system on one partition

• Install the second operating system on the other partition

• Use a boot manager to choose which operating system to boot into

• Examples of boot managers include GRUB and Windows Boot Manager
Answered by AI
Add your answer
Q4. What is virtual machine
Ans. 
A virtual machine is a software emulation of a physical computer that can run multiple operating systems and applications.
• Virtual machines allow for efficient use of hardware resources by sharing them among multiple virtual machines

• They provide a secure and isolated environment for running applications

• Virtual machines can be easily created, cloned, and moved between physical hosts

• Examples of virtual machine software in
Answered by AI
Add your answer

There where two paper one was of maths and second paper was of engligh.

There where ten person in one GD, topic was provided us by them.

Q1. It was technical interview. They have asked about our project in our resume. After that they asked questions on based of that project.
Add your answer

Q1. Basic Networking Concepts like OSl/TCP/IP models. Basic protocols.
Add your answer
Q2. Current Windows and Android OS info with their differences from the past versions.
Ans. 
Windows and Android OS have evolved with new features and improvements compared to past versions.
• Windows 10 introduced a new Start menu and Cortana virtual assistant.

• Android 11 focused on improved privacy controls and messaging features.

• Both OS have enhanced security measures compared to their past versions.
Answered by AI
Add your answer

Q1. Networking Questions about devices and their functionality.
Add your answer
Q2. Deep networking topics like Subnetting, NAT and their working.
Add your answer

Q1. This a one-on-one final round with director. He himself was systems Engineer. Expect deep networking concept questions.
Add your answer

Round duration - 30 minutes
Round difficulty - Medium

This was a MCQ round. 30 ques in 30 mins consisting of difficult quantitative aptitude questions were to be solved.

Round duration - 60 minutes
Round difficulty - Medium

In this test round, 2 coding questions were given. Either write the code or pseudo code

Q1. 
N Queens Problem
Given an integer N, find all possible placements of N queens on an N x N chessboard such that no two queens threaten each other.
Explanation:
A queen can attack another queen if they ar...read more
Ans. 
The N Queens Problem involves finding all possible placements of N queens on an N x N chessboard without threatening each other.
• Use backtracking algorithm to explore all possible configurations.

• Keep track of rows, columns, and diagonals to ensure queens do not threaten each other.

• Generate all valid configurations and print them out.
Answered by AI
Add your answer
Q2. 
Sort 0 1 2 Problem Statement
Given an integer array arr of size 'N' containing only 0s, 1s, and 2s, write an algorithm to sort the array.
Input:
The first line contains an integer 'T' representing the n...read more
Ans. 
Sort an array of 0s, 1s, and 2s in linear time complexity.
• Use three pointers to keep track of 0s, 1s, and 2s while traversing the array.

• Swap elements based on the values encountered to sort the array in-place.

• Time complexity should be O(N) and space complexity should be O(1).
Answered by AI
Add your answer

Round duration - 60 minutes
Round difficulty - Easy

This was a technical round with questions on DSA.

Q1. 
Reverse Words in a String: Problem Statement
You are given a string of length N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o...read more
Ans. 
Reverse words in a string while handling leading, trailing, and multiple spaces.
• Split the input string by spaces to get individual words

• Reverse the order of the words

• Join the reversed words with a single space in between
Answered by AI
Add your answer
Q2. 
Circular Linked List Detection
You are provided with the head of a linked list containing integers. Your task is to determine if the linked list is circular.
Note:
• A linked list is considered circula...read more
Ans. 
Detect if a given linked list is circular by checking if it forms a closed loop.
• Traverse the linked list using two pointers, one moving at double the speed of the other.

• If the two pointers meet at any point, the linked list is circular.

• If the faster pointer reaches the end of the list (NULL), the linked list is not circular.
Answered by AI
Add your answer

Round duration - 30 minutes
Round difficulty - Easy

HR round with typical behavioral problems.

Very basic aptitude questions along with few coding questions

Q1. A problem statement was given and we had to provide an optimal approach to design and handle that problem
Add your answer
Q2. Oops concepts, SQL queries
Add your answer

The basic question is related to profit percentage, time and distance

Q1. Is the database schema of any type?
Ans. 
Yes, the database schema can be of various types such as relational, hierarchical, network, object-oriented, etc.
• Relational database schema is the most common type, using tables to store data with relationships between them.

• Hierarchical database schema organizes data in a tree-like structure.

• Network database schema allows multiple relationships between records.

• Object-oriented database schema stores data as objects with...read more
Answered by AI
Add your answer