Infosys Desktop Support Engineer L1 Interview Questions and Answers

Q1. What is different between POP ,&IMAP
Ans. 
POP and IMAP are email protocols used for retrieving emails from a mail server.
• POP downloads emails from the server to the local device and deletes them from the server.

• IMAP syncs emails between the server and the local device, allowing access to emails from multiple devices.

• POP is a one-way communication protocol while IMAP is a two-way communication protocol.

• POP is less secure than IMAP as it doesn't support encrypti...read more
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Q2. What is share the troubleshooting Outlook
Ans. 
Sharing the troubleshooting steps for resolving Outlook issues
• Document the issue and steps taken to troubleshoot

• Share the troubleshooting steps with the team or supervisor

• Collaborate with other team members to resolve the issue

• Provide feedback on the effectiveness of the troubleshooting steps

• Continuously update the troubleshooting steps for future reference
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Q1. What is different between network and Networking
Ans. 
Network refers to a group of interconnected devices, while networking refers to the process of connecting these devices.
• Network is a noun, while networking is a verb.

• Network refers to the physical or logical connections between devices, while networking refers to the process of establishing and maintaining those connections.

• Examples of network devices include routers, switches, and servers, while examples of networking...read more
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Q2. What is switching and routing
Ans. 
Switching and routing are two fundamental concepts in computer networking.
• Switching is the process of forwarding data packets between devices on the same network.

• Routing is the process of forwarding data packets between different networks.

• Switches operate at the data link layer of the OSI model, while routers operate at the network layer.

• Switches use MAC addresses to forward packets, while routers use IP addresses.

• Exam...read more
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Q1. Tell me about yourself.
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Q2. How many members are there in your family?
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Q3. Why are you interested in this job?
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Q1. What is ip address? Explain the types of ip address?
Ans. 
An IP address is a unique identifier assigned to devices on a network. There are two types of IP addresses: IPv4 and IPv6.
• IP address stands for Internet Protocol address

• It is a numerical label assigned to each device connected to a network

• IPv4 addresses are 32-bit and represented in dotted decimal notation (e.g. 192.168.0.1)

• IPv6 addresses are 128-bit and represented in hexadecimal notation (e.g. 2001:0db8:85a3:0000:000
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Q2. What is ping command?
Ans. 
Ping command is a network utility used to test the reachability of a host on an Internet Protocol (IP) network.
• Ping sends an ICMP echo request to the target host and waits for a response.

• It measures the round-trip time for messages sent from the originating host to a destination computer.

• It can also be used to determine the number of hops between two hosts.

• Ping is commonly used to troubleshoot network connectivity issu
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Q3. What is antivirus? Name some of the antivirus available in the market?
Ans. 
Antivirus is a software program designed to prevent, detect, and remove malicious software from a computer system.
• Antivirus software scans files and directories for any malware or suspicious patterns.

• It uses various techniques like signature-based detection, behavioral analysis, and heuristics to identify and remove viruses.

• Some popular antivirus software in the market are Norton, McAfee, Kaspersky, Avast, and AVG.
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Q1. Explain about DHCP,DNS,OSI MODEL and different between ost. , pst. In Outlook
Ans. 
Explanation of DHCP, DNS, OSI model, and difference between OST and PST in Outlook.
• DHCP (Dynamic Host Configuration Protocol) assigns IP addresses to devices on a network.

• DNS (Domain Name System) translates domain names into IP addresses.

• OSI (Open Systems Interconnection) model is a conceptual framework for network communication.

• OST (Offline Storage Table) is a file format used by Outlook to store offline copies of ema...read more
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Q1. Tell me about your self, salary expectations, location preference about wipro
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Q1. Tell me about yourself.
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Q2. Why do you want to work for us?
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Q3. Why you left your previous job?
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Q1. General knowledge about personal life n expectation
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Q1. Strong on technical Skills
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Round duration - 140 minutes
Round difficulty - Medium

Test timing was at 2:00 pm , it was conducted in a college and the environment was good for the test. Camera was a primary part of test, so no suspicious activity.

Q1. 
Sum of Two Numbers Represented as Arrays
Given two numbers in the form of two arrays where each element of the array represents a digit, calculate the sum of these two numbers and return this sum as an ar...read more
Ans. 
Given two numbers represented as arrays, calculate their sum and return the result as an array.
• Iterate through the arrays from right to left, adding digits and carrying over if necessary

• Handle cases where one array is longer than the other by considering the remaining digits

• Ensure the final sum array does not have any leading zeros
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Round duration - 20 minutes
Round difficulty - Easy

The round was conducted at around 12 p.m. I was called at the college location and then it was conducted. The interviewer was quite polite and frank.

Round duration - 8 minutes
Round difficulty - Easy

This round was conducted right after finishing and clearing the technical round at the same place and on the same day.

Q1. Solid principles in c#
Ans. 
Solid principles are a set of design principles for writing maintainable and scalable code in C#.
• Single Responsibility Principle (SRP) - a class should have only one reason to change

• Open/Closed Principle (OCP) - a class should be open for extension but closed for modification

• Liskov Substitution Principle (LSP) - derived classes should be substitutable for their base classes

• Interface Segregation Principle (ISP) - client...read more
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