Top 50 Network Technical Support Interview Questions You Must Prepare 23.Jul.2024

Q1. Which Command(s) Would You Use To Get A List Of All Microsoft Signed Drivers On Your Computer?

Type winmsd or msinfo32 in the command prompt, expand Software Environment and then select “Signed drivers“.

Q2. Difference Between Ram And Rom?

RAM (Random Access Memory): is used to temporarily store information that the computer is currently working on.

ROM (Read Only Memory): This is a Permanent type of memory storage used by computers for important data which never changes. (Example: BIOS)

Q3. What Are Some Drawbacks Of Implementing A Ring Topology?

In case one workstation on the network suffers a malfunction, it can bring down the entire network. Another drawback is that when there are adjustments and reconfigurations needed to be performed on a particular part of the network, the entire network has to be temporarily brought down as well.

Q4. How Will You Do A System Restore In Windows Xp From Command Prompt?

Run> CMD> C:windowssystem32restorerstrui.exe

Q5. What Does The Term Uac Stand For?

UAC stands for User Access Control. For more information read this article.

Q6. What Would You Do If You Keep Getting The Error Message "usb Device Not Recognized" When You Connect Any Usb Device To Your Computer?

You get this error if either the USB drivers are not installed or the USB port(s) are not working properly.

Q7. If You See A "?" Next To Any Component In The Windows Device Manager, What Does It Mean?

The ‘?’ in Device Manager me that the device is not properly installed. It could also mean that the driver for a device is not installed.

Q8. To Install Usb Devices That Are Plug And Play Compliant Using Win Xp?

Just plug the device in and it will be detected automatically even without restarting the computer.

Q9. How Do You Boot In The Recovery Console?

We can boot up to the Recovery Console by using the windows XP CD to start up the computer and select then select the option “press R to repair the Windows XP Installation”.

Q10. A User Cannot Access The Local Intranet. What Would You Try First In Helping To Determine How To Narrow The Problem Down To The Intranet?

Don’t make this question harder than it really is. Sometimes the interviewer will try to trip you up to test your common sense. Go for the obvious, rather than complicating the situation. In this case, simply trying to access the intranet from another workstation would help isolate the problem to the machine.

Q11. What Are Rj45 And Rj11 Connectors?

RJ45 connectors are used for LAN/Ethernet connections and RJ11 connectors are used for Telephone Cable connections.

Q12. What Is Peer To Peer?

Peer to peer are networks that does not reply on a server. All PCs on this network act as individual workstations.

Q13. What Is Ping?

Ping is a command that checks the connectivity with an IP address. For more read this article.

Q14. What Do You Understand By Ftp ?

File trfer protocol.

Q15. Name One Of The Latest Computer Processors (cpu) ?

Intel Pentium Quad Core, Intel I3, I5, I7 processors.

Q16. You Have Norton 36

Reconfigure Norton Firewall to allow Internet Explorer to access the internet.

Q17. When You Are Configuring Power Management On Your Windows Xp,who/what Will Control The Acpi Functions?

ACPI will be fully controlled by The operating system.

Q18. What Is Multicast Routing?

Multicast routing is a targeted form of broadcasting that sends message to a selected group of user, instead of sending it to all users on a subnet.

Q19. The Range Of Ip Address That Ics (internet Connection Sharing) Use By Default Is Through

Q20. What Is Ipconfig?

Ipconfig is a utility program that is commonly used to identify the addresses information of a computer on a network. It can show the physical address as well as the IP address.

Q21. Frequently, Users In Your Office Leave Floppy Disks In Drives. This Causes Problems When Users Attempt To Boot With Floppies Still In Drive And Results In A Support Request. You Want To Change The Com

Change the boot order in CMOS

Q22. What Is The Difference Between Csma/cd And Csma/ca?

CSMA/CD, or Collision Detect, retrmits data frames whenever a collision occurred. CSMA/CA, or Collision Avoidance, will first broadcast intent to send prior to data trmission.

Q23. What Can Be Done To Fix Signal Attenuation Problems?

A common way of dealing with such a problem is to use repeaters and hub, because it will help regenerate the signal and therefore prevent signal loss. Checking if cables are properly terminated is also a must.

Q24. What Protocol Can Be Applied When You Want To Trfer Files Between Different Platforms, Such Between Unix Systems And Windows Servers?

Use FTP (File Trfer Protocol) for file trfers between such different servers. This is possible because FTP is platform independent.

Q25. What Are The Components Needed To Setup A Basic Home Network?

LAN Cards, LAN Cables, Router/Hub

Q26. After Upgrading To Windows Xp Professional From Windows 98, The Computer Has Really Slowed Down. The Windows, Menus And Other Options Take A Long Time To Open. What Can You Do To Make Them Open Up Fas

Select the “Adjust for best performance” option in the advanced system properties.

Q27. Which File Must Be Located In The Root Folder Of The Active Partition For Dual Booting Of Windows Xp And Windows Me To Boot?


Q28. What Does Isp Stand For ?

Internet Service Provider

Q29. What Is A Parallel Windows Installation?

When the first installation of Windows fails to boot for some reason, another copy of Windows is installed in the same drive but in a different directory (so that the customer can access to and backup his old data). This is called Parallel Installation of Windows.

Q30. Which Utility Is Used To Do A Software Clean Boot?


Q31. Explain The Importance Of Authentication?

Authentication is the process of verifying a user’s credentials before he can log into the network. It is normally performed using a username and password. This provides a secure me of limiting the access from unwanted intruders on the network.

Q32. Which Windows Utility Helps To Clean Boot Your Pc?

The Windows MSCONFIG utility can be used to Clean Boot a PC.

Q33. What Is The Difference Between A Hub And A Switch?

A hub acts as a multiport repeater. However, as more and more devices connect to it, it would not be able to efficiently manage the volume of traffic that passes through it. A switch provides a better alternative that can improve the performance especially when high traffic volume is expected across all ports.

Q34. How Will You Enable Packet Filtering When Your Computer Is Connected To The Internet Using A Dsl Connection?

You can enable packet filtering in a Windows XP computer from the Advanced TCP/IP properties. Alternatively, you can also configure the Windows Firewall.

Q35. What Is The Default Browser That Comes With Windows Xp To Browse The Internet ?

None of the above

Q36. What Is The Difference Between Crt (cathode Ray Tube) And Lcd (flat Screen Monitors)?

CRT Monitors: The Monitor has a picture tube and uses a light-gun to highlight pixels on the screen.

LCD Monitors: These monitors do not have a picture tube and contain a layer of liquid crystals on an Electronic Board.

Q37. What Protocols Fall Under The Application Layer Of The Tcp/ip Stack?

The following are the protocols under TCP/IP Application layer: FTP, TFTP, Telnet and SMTP.

Q38. When Troubleshooting Computer Network Problems, What Common Hardware-related Problems Can Occur?

A large percentage of a network is made up of hardware. Problems in these areas can range from malfunctioning hard drives, broken NICs and even hardware startups. Incorrectly hardware configuration is also one of those culprits to look into.

Q39. You Performed A Parallel Installation Of Windows Xp (home Edition) To Resolve Certain Problems On A Customer's Computer. After Installation, The Customer Says She Can See The Previous Profile Folders

Boot into Safe Mode, Right-Click on the Old Profile Folder, Go to Security – Advanced and give Ownership to the new user.

Q40. After Restarting Your Windows Xp (professional) Computer, Your Monitor Shows A Blank, Blue Screen. You Remember That A New Video Driver Was Just Installed. What Would Be The Best Way To Fix This Probl

Restart the Computer, Keep tapping on the F8 Key to go to the Windows Advanced Options Menu and select the option “Last Known Good Configuration” and hit the key.

Q41. Mark Uses Windows Xp Professional And Is Connected To The Internet Directly Through A Dsl Line. He Wants To Know How He Would Enable The Filtering Of Packets And Get Rid Of The Harmful Incoming Data.

Enable the Firewall

Q42. What Is The Difference Between A Straight-through And Crossover Cable?

A straight-through cable is used to connect computers to a switch, hub or router. A crossover cable is used to connect two similar devices together, such as a PC to PC or Hub to hub.

Q43. What Is Sneakernet?

Sneakernet is believed to be the earliest form of networking wherein data is physically trported using removable media, such as disk, tapes.

Q44. What Does A "?" Signify In The Device Manager?

Device not installed.

Q45. What Is The Proper Termination Rate For Utp Cables?

The proper termination for unshielded twisted pair network cable is 100 ohms.

Q46. What Is The Blue Screen Of Death (bsod)?

A Blue Screen of Death (or just a Blue Screen Error) is an indication of a Critical System Problem wherein the Computer freezes all together and does not respond to anything.

To rectify this problem, try Restarting the computer or Booting into Safe Mode. For more information, read this.

Q47. A User Has Left The Company And You Need To Create A New User With The Same Rights And Permissions. Please Describe Some Of The Ways To Create The New User?

This question tests your ability to get the job done in the most efficient way possible. For example, you can create new accounts from scratch and assign the original rights to the accounts or you can simply rename the old account for the new user, which saves you a lot of time and effort.

Q48. Why Are Device Drivers Required?

A Device Driver (or just Driver) is a piece of software which is required to run every Hardware Component present in the computer.

Q49. What Would You Check If There Is No Sound From Your Computer? (audio Not Working)

  1. Check for cable connections
  2. Check for power to the speakers
  3. Check for volume control
  4. Check for device drivers

Q50. In A Network That Contains Two Servers And Twenty Workstations, Where Is The Best Place To Install An Anti-virus Program?

An anti-virus program must be installed on all servers and workstations to ensure protection. That’s because individual users can access any workstation and introduce a computer virus when plugging in their removable hard drives or flash drives.