MobileComm Technologies India DT Engineer Interview Questions and Answers

Q1. How to check cyclic swap in sector?
Ans. 
To check cyclic swap in sector, verify if the data is shifted by a fixed number of positions.
• Check if the data in the sector is shifted by a fixed number of positions

• Compare the original data with the shifted data to identify cyclic swap

• Use algorithms like bubble sort or rotation to detect cyclic swaps
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Q2. If u visit the site at first what will you do?
Ans. If I visit the site first I will call the technician and take the permission from technician if he garent me permission then I will raise my ptw .Ptw is very necessary working from height.
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Q3. If you visiting the site what what things you will carry?
Ans. 
I would carry necessary tools, safety equipment, documentation, and a mobile device.
• Tools such as multimeter, screwdrivers, pliers

• Safety equipment like hard hat, gloves, safety glasses

• Documentation including site plans, project specifications

• Mobile device for communication, accessing digital resources
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60 minutes 60 aptitude and logical reasoning questions questions

Q1. Can you write a program to demonstrate soccket programming
Ans. 
Yes
• Socket programming is a way to establish communication between two computers over a network using sockets.

• It involves creating a socket, binding it to an IP address and port, listening for incoming connections, and sending/receiving data.

• Examples of socket programming include creating a chat application, a file transfer program, or a web server.
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Q2. What do you know about ipv4 vs ipv6,ip masking and more computer network related stuff
Ans. 
IPv4 and IPv6 are internet protocol versions. IP masking is a technique to hide IP addresses.
• IPv4 is the fourth version of the Internet Protocol, while IPv6 is the sixth version.

• IPv4 uses 32-bit addresses, allowing for approximately 4.3 billion unique addresses.

• IPv6 uses 128-bit addresses, providing a significantly larger address space.

• IP masking, also known as IP anonymization, is the process of hiding the IP address ...read more
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Q1. Construction and work experience
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Construction and relevant questions

General aptitude questions

Q1. Questions based on resume
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Q1. More based on resume but from managers
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Round duration - 40 Minutes
Round difficulty - Medium

Round 1 was mainly focused on data structures and algorithms ,core java concepts and dbms

Q1. Minimum Characters For Palindrome
you are given a string and you have to find the minimum number of characters to be inserted to convert it to a palindrome.
Ans. 
Tip 1 : Be clear and loud while solving problem , discuss approach with interviewer.
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Q2. Next Greater Element
Given an array, print the Next Greater Element (NGE) for every element. The Next greater Element for an element x is the first greater element on the right side of x in the array. Eleme...read more
Ans. Brute Force
For every element in the array, we will run a loop on its right side. As soon as we find an element on its right side which is greater than it, we will break the loop, assign it as the NGE of this element, move forward, and do the same for the next element.
Space Complexity: O(1)Explanation:
O(1)
 
No extra space is used.
Time Complexity: O(n^2)Explanation:
O(N ^ 2),  Where N is the number of elements ...read more
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Q3. OOPS based Questions
brush up basic core java concepts like oops concepts, serialization and also java 8 new features, was asked to write codes with java 8 features
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Q4. DBMS Questions
ACID properties,sql quries like 2nd highest salary from employee table and more dbms concepts.
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Round duration - 40 to 50 min
Round difficulty - Medium

Focussed mainly on projects and system design

Q1. Technical Questions
I was asked about projects.HLD of my current project and my role in it.Different design patterns were asked .discussed various architectural approach for solving problem according to req...read more
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Round duration - 30 Minutes
Round difficulty - Medium

Managerial round

Q1. Project Based Questions
Mainly about my current role and projects i worked on.Discussed HLD problems from projects i worked on and side projects.
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Round duration - 20 Minutes
Round difficulty - Easy

Q1. Basic HR questions
Introduction ,Where do you see yourself in 2-3 years?
What do you know about Airtel Xlabs?
Why do you want to join Airtel?
Ans. 
Tip 1 : read about company before applying.
 
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Q1. About coding and all oops concept SQL, unix
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Q2. Unix, sql, language and oops concepts questions
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