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10+ TCS Interview Questions and Answers

Updated 26 Jan 2025

Q1. What is your approach to performing data backups for users, and what types of user data do you consider essential to back up?

Ans.

I prioritize user data based on importance and frequency of use, ensuring regular backups to prevent data loss.

  • Identify critical user data such as documents, photos, videos, and emails

  • Implement automated backup solutions to ensure regular and consistent backups

  • Educate users on the importance of backing up data and provide guidance on best practices

  • Utilize cloud storage services for offsite backups to protect against physical damage or theft

  • Regularly test data backups to ensur...read more

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Q2. Do you know the difference between PST and OST file formats?

Ans.

PST is a personal storage table used by Outlook to store emails, while OST is an offline storage table used for offline access.

  • PST is used for storing emails, contacts, calendar items, etc. locally on the computer.

  • OST is a copy of items stored on a mail server and allows offline access to emails.

  • PST files can be imported/exported, while OST files are synchronized with the mail server.

  • PST files are typically larger in size compared to OST files.

  • Example: When you archive emails...read more

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Q3. What is the color coding for LAN (Local Area Network) cables?

Ans.

LAN cables are color coded for easy identification and troubleshooting purposes.

  • LAN cables typically follow the TIA/EIA-568-B color coding standard

  • The standard color coding for LAN cables is: white/orange, orange, white/green, blue, white/blue, green, white/brown, brown

  • Each color corresponds to a specific pin configuration for proper connectivity

  • Color coding helps in quickly identifying cable types and troubleshooting network issues

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Q4. Do you have experience using antivirus software such as Sentinel, eScan, or others?

Ans.

Yes, I have experience using antivirus software such as Sentinel and eScan.

  • I have experience installing, configuring, and troubleshooting antivirus software on desktops.

  • I am familiar with managing virus definition updates and performing system scans.

  • I have worked with Sentinel and eScan to protect systems from malware and other security threats.

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Q5. What are the steps to connect a USB printer to various computer systems?

Ans.

Steps to connect a USB printer to various computer systems

  • Ensure the printer is compatible with the computer's operating system

  • Connect the USB cable from the printer to the computer

  • Install the printer drivers on the computer

  • Set up the printer in the computer's settings

  • Test the printer by printing a document

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Q6. Are you knowledgeable about IP address classification?

Ans.

Yes, IP addresses are classified into different classes based on their range and purpose.

  • IP addresses are classified into five classes: A, B, C, D, and E.

  • Class A addresses are used for large networks, with the first octet being the network portion.

  • Class B addresses are used for medium-sized networks, with the first two octets being the network portion.

  • Class C addresses are used for small networks, with the first three octets being the network portion.

  • Class D addresses are res...read more

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Q7. What does POST refer to in computer hardware?

Ans.

POST refers to Power-On Self Test in computer hardware.

  • POST is a diagnostic testing sequence that a computer's BIOS runs to determine if the computer hardware is functioning properly.

  • It checks the CPU, RAM, storage devices, and other hardware components for errors.

  • If any issues are detected during POST, the computer may display error messages or beep codes to indicate the problem.

  • POST results are typically displayed on the screen during the boot process.

  • POST is essential for ...read more

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Q8. What are the differences between BIOS and UEFI?

Ans.

BIOS is an older firmware interface, while UEFI is a newer and more advanced replacement for BIOS.

  • BIOS stands for Basic Input/Output System, while UEFI stands for Unified Extensible Firmware Interface.

  • BIOS uses the Master Boot Record (MBR) partitioning scheme, while UEFI uses the GUID Partition Table (GPT) scheme.

  • UEFI supports larger hard drives and faster boot times compared to BIOS.

  • UEFI has a graphical user interface, while BIOS typically has a text-based interface.

  • UEFI is ...read more

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Q9. Do you have experience with router configuration?

Ans.

Yes, I have experience with router configuration.

  • I have configured routers for network connectivity and security purposes.

  • I am familiar with setting up VLANs, DHCP, NAT, and firewall rules on routers.

  • I have troubleshooted router issues such as connectivity problems and performance issues.

  • I have worked with routers from various manufacturers like Cisco, Juniper, and Ubiquiti.

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Q10. Do you have experience related to SAP?

Ans.

Yes, I have experience working with SAP in previous roles.

  • Implemented SAP solutions for various business processes

  • Provided support for SAP applications and troubleshooting

  • Configured and maintained SAP systems

  • Trained end-users on SAP functionality

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Q11. What is a firewall?

Ans.

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

  • Acts as a barrier between a trusted internal network and untrusted external network

  • Filters network traffic based on rules set by the administrator

  • Can be hardware-based or software-based

  • Examples include Cisco ASA, Palo Alto Networks, and Windows Firewall

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