Infosys System Engineer Desktop Support Engineer Interview Questions and Answers

Q1. Tell me about yourself?
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Q1. Explain osi model
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The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
• The OSI model stands for Open Systems Interconnection model.

• It helps in understanding how different networking protocols work together.

• The seven layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has specific functions and communicates w...read more
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Q2. Difference between ipv4 and ipv6
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IPv4 uses 32-bit addresses while IPv6 uses 128-bit addresses, allowing for more unique addresses and improved security features.
• IPv4 addresses are written in decimal format (e.g. 192.168.1.1) while IPv6 addresses are written in hexadecimal format (e.g. 2001:0db8:85a3:0000:0000:8a2e:0370:7334)

• IPv4 supports around 4.3 billion unique addresses, while IPv6 supports around 340 undecillion unique addresses

• IPv4 uses ARP (Addr...read more
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Q3. What is .ost and .pst file?
Ans. 
OST and PST files are Outlook data files used by Microsoft Outlook to store emails, contacts, calendar events, and other data.
• OST file is an offline Outlook data file that allows users to access their emails and other data even when not connected to the internet.

• PST file is a personal storage table file used to store emails, contacts, calendar events, and other data in Microsoft Outlook.

• OST files are typically used wit...read more
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Q4. How to troubleshoot wifi?
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Troubleshooting wifi involves checking network settings, signal strength, and device connectivity.
• Check if wifi is enabled on the device

• Ensure the correct network is selected

• Restart the router and modem

• Move closer to the router to improve signal strength

• Update wifi drivers on the device
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Medium to hard question.

One is easy problem another one medium problem.

Q1. Tell me about your self.
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Q2. What is your project.
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Q3. What is your stregth.
Ans. 
My strength lies in my ability to troubleshoot technical issues efficiently and effectively.
• Strong problem-solving skills

• Excellent communication skills

• Ability to work well under pressure

• Attention to detail

• Experience with various operating systems and software applications
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I'm just writing this in order to view some interview questions please ignore

Q1. Tell me about ur self
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Q2. How are u doing
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Q1. What is bsod? What is networking? What is pst and ost fills? How using ost pst fills? What is out look? Some off questions etc
Ans. 
BSOD stands for Blue Screen of Death, a Windows error screen displayed when a system encounters a critical error. Networking refers to the practice of connecting computers and other devices to share resources. PST and OST files are used in Microsoft Outlook to store email data. Outlook is an email client developed by Microsoft.
• BSOD is a Windows error screen that appears when a critical system error occurs.

• Networking in...read more
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Q2. What is printer?
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A printer is a device that produces text or graphics on paper or other media.
• Printers can be connected to computers or networks to produce physical copies of digital documents.

• There are different types of printers such as inkjet, laser, and dot matrix printers.

• Printers can be used for printing documents, photos, labels, and more.

• Common printer manufacturers include HP, Canon, Epson, and Brother.
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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?
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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. Tell me about your self?
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Q2. What is outlook?, how to configure outlook?
Ans. 
Outlook is a personal information manager from Microsoft used for email, calendar, contacts, and tasks.
• Open Outlook and click on File > Add Account

• Enter your email address and password

• Follow the prompts to complete the setup

• Configure server settings if necessary

• Test the account to ensure it is working properly
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Q1. What is DHCP AND DNS?
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DHCP assigns IP addresses to devices on a network. DNS translates domain names to IP addresses.
• DHCP stands for Dynamic Host Configuration Protocol

• It automatically assigns IP addresses to devices on a network

• DNS stands for Domain Name System

• It translates domain names to IP addresses

• DNS is used to access websites and other resources on the internet
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Q2. Diffrence between router and switch? Differnce between TCP AND UDP? what is port no. Of SMTP AND POP3? What is Printer? How to add new printer? What is BSOD? HOW to fix it? How to take backup of data ...read more
Ans. 
Questions related to networking and technical support.
• Router connects multiple networks and switches connect devices within a network.

• TCP is a connection-oriented protocol while UDP is connectionless.

• SMTP uses port number 25 and POP3 uses port number 110.

• Printer is a device that produces a hard copy of digital documents.

• To add a new printer, go to Control Panel > Devices and Printers > Add a Printer.

• BSOD (Blue Screen o...read more
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Q3. What is APIPA? WHAT IS SUBNETMASK? DIFFERENCE BETWEEB IPv4 and IPv6. How many types of os installation? What is BIOS AND what is use of CMOS BATTARY? WHST IS HDD and how many types of HDD? How to sho...read more
Ans. 
A set of technical questions related to desktop support engineering.
• APIPA is Automatic Private IP Addressing used when DHCP server is not available.

• Subnet mask is used to divide an IP address into network and host portions.

• IPv4 uses 32-bit addresses while IPv6 uses 128-bit addresses.

• There are two types of OS installation: clean installation and upgrade installation.

• BIOS is a firmware that initializes hardware during bo...read more
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1) I have one laptop and network is not working in this laptop. How to fix it?
2) I have one desktop and display is not coming then how to troubleshoot it?
3) I have one laptop and power is not coming in this laptop then how to troubleshoot it?

Q1. Salary discussion and acceptation
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Q2. And then release offer latter
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Hardware and networking problem

Q1. Application related problems
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Q2. How to resolved Os installation problem
Ans. 
To resolve OS installation problems, check hardware compatibility, ensure proper boot order, and troubleshoot installation media.
• Check hardware compatibility with the OS being installed

• Ensure proper boot order in BIOS settings

• Troubleshoot installation media, such as checking for scratches or creating a new bootable USB

• Check for any error messages during installation and troubleshoot accordingly
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Q3. Windows update, internet connection problem, data recovery
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Q4. How to rectify data recovery, dual monitor connection
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To rectify data recovery, dual monitor connection, check cables, update drivers, and use data recovery software.
• Check cables and connections for dual monitor setup

• Update drivers for graphics card and monitor

• Use data recovery software to recover lost data

• Ensure proper backup procedures are in place to prevent data loss
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Share details of your previous job.
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Q4. Why should we hire you?
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Q5. Why are you looking for a change?
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Q6. Where do you see yourself in 5 years?
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Q7. What are your strengths and weaknesses?
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Q8. Tell me about yourself.
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Q1. VPN related Outlook Related What is DNS what is DHCP how add network printer what is blue screen error scanner issues
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