Yotta Infrastructure Solutions Graduate Trainee Interview Questions and Answers

Basic appti. Question

Q1. Question about computer networks
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Q1. Technical questions about DG ,T/F, Cooling System related Questions
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Q1. Questioning about how deal in critical condition
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Q1. HR discussion with about the machinery and how machinery will be operate and sallery Discussion.
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Basic apptitude question and technical question

Q1. Networking question
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Q1. Simple self intro and few questions about previous experience
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Q1. 1. Self intro 2. Previous experience related questions 3. How fit am I for this job?
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Q2. 4. Salary expectation
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Q1. 1. Self intro and previous experience related questions
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Q2. 1. Overall about HVAC systems 2. Overall about FPS system
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Q3. 1. Testing procedures for piping and duct
Ans. 
Testing procedures for piping and duct involve pressure testing, leak testing, and visual inspection.
• Pressure testing involves pressurizing the system with air or water to check for leaks.

• Leak testing can be done using soap solution or electronic leak detectors.

• Visual inspection includes checking for proper installation, support, and connections.

• Testing procedures should follow industry standards and regulations.

• Docume...read more
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Q4. 1. Fire pump room working principle
Ans. 
Fire pump room is designed to provide water supply at high pressure to the sprinkler system in case of fire emergency.
• Fire pump room houses pumps that are capable of delivering water at high pressure to the sprinkler system

• The pumps are usually powered by electricity or diesel engines

• The room is equipped with controllers and alarms to monitor and control the water flow

• Regular maintenance and testing of the pumps are es...read more
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Q5. 1. Insulation material specification
Ans. 
Insulation material specification includes type, thickness, density, and thermal conductivity.
• Specify the type of insulation material (e.g. fiberglass, foam, mineral wool)

• Provide the thickness of the insulation material in inches or millimeters

• Include the density of the insulation material in pounds per cubic foot or kilograms per cubic meter

• State the thermal conductivity of the insulation material in BTU/(hr*ft*F) or
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Q1. Cultural fit assessment conducted and conducted one to one interview
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Q1. This round was postponed continuously 40 days.
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Q1. What is BGP, MPLS?
Ans. 
BGP (Border Gateway Protocol) is a routing protocol used to exchange routing information across the Internet. MPLS (Multiprotocol Label Switching) is a technique for speeding up network traffic flow.
• BGP is used to make core routing decisions on the Internet.

• MPLS is used to speed up network traffic flow by allowing routers to make forwarding decisions based on labels instead of IP addresses.

• BGP operates between differen...read more
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Q2. What is the use of networking in a company?
Ans. 
Networking in a company allows for communication, data sharing, resource sharing, and collaboration among employees and departments.
• Facilitates communication between employees, departments, and branches

• Enables sharing of resources such as printers, servers, and internet connection

• Allows for centralized data storage and access

• Facilitates collaboration on projects and tasks

• Enhances security through network monitoring and
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Q3. How would you define ports of a Router?
Ans. 
Ports of a router are physical connection points that allow devices to connect to the network.
• Ports on a router can include Ethernet ports, USB ports, and WAN ports.

• Each port serves a specific function, such as connecting a computer or printer to the network.

• Routers may have different types and numbers of ports, depending on the model and manufacturer.

• Ports can be used for wired or wireless connections, depending on th
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Q1. Situation based question where detailed explanation is needed.
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Q2. What was the last task you have resolved?
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Q1. How many people directly reports to you?
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Q2. What would be the notice period you need to seve?
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It is easier with logical and verbal reasoning and two hand on programming

Q1. How to swap two variables without using third variable
Ans. 
To swap two variables without using a third variable, use arithmetic operations.
• Use addition and subtraction to swap values

• Example: a = 5, b = 10. a = a + b (a = 15), b = a - b (b = 5), a = a - b (a = 10)
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Q1. Self introduction
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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.
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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).
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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
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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.
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Round duration - 30 minutes
Round difficulty - Easy

HR round with typical behavioral problems.