System Administrator interview questions

  1. Which port does SSH use?
  2. Port 21
  3. Port 22
  4. Port 25
  5. Port 443

Answer: B

  • Which command for Hop-by-Hop Analysis & Troubleshooting
  • IPCONFIG
  • Ping
  • Tracert
  • Net statistics

Answer: C.

  • Why do you receive this warning?
  1. Certificate issue
  2. Use HTTP instead
  3. You get virus
  4. DNS issue

Answer A.

  • You can’t open a website. However, ping IP works.
  • Website is down.
  • Internet is down
  • You should use IP instead of website name.
  • This is DNS issue.

Answer: D.

  • After opening attachment, you can’t open any files because of ransomed.
  • Pay money to hacker to  fix
  • Restore the file.
  • Disconnect the network.
  • Run Windows update

Answer: C.

  • The computer keeps rebooting by itself. What should you check?
  • Check Log file.
  • Reinstall Windows.
  • Check IPCONFIG.
  • Check Event viewer

Answer: E

  • After a Windows update, the user can’t login with Please wait….
  • Run anti-virus.
  • Re-install Windows update
  • Disconnect all external device except keyboard and mouse.
  • Run system restore.

Answer: C.

  • When assigning a Statistics IP address to a network device, which options you may have?
  • Type the statistics IP address in the web browser.
  • Run ipconfig /renew
  • Go to NIC to change adapter settings.
  • Use DHCP reservation.

Answer: D and D.

  • The new Server comes with two hard disks and your boss want a redundancy RAID.

Answer: C

  1. The new Server comes with four hard disks and your boss wants a high performance and security RAID.

A.           RAID 0

B.           RAID 1

C.           RAID 5

D.           RAID 6

E.            RAID 10.

F.            RAID 1+0

Answer: E and F.

  1. Your laptop (mylaptop) has joined a domain, mydomain. Which is options to login Local Windows Account instead of Domain account?
  2. .\username
  3. Username
  4. Mydomain\username
  5. Mylaptop\username

Answer: A and D.

  1. Your boss wants you to upload some secured files to a remote site. What may you use?
  2. FTP
  3. SFTP
  4. FTPS
  5. HTTPS

Answer: B, C and D

Office 365 Couldn’t install with Error code 0-2031 (17004)

Situation: When the client runs Office 365 update or Online repair, he may receive Couldn’t install with Error code 0-2031 (17004).

Troubleshooting: Download Microsoft Automatically Office Uninstallation Tool from this link: https://support.microsoft.com/en-us/office/uninstall-office-automatically-9ad57b43-fa12-859a-9cf0-b694637b3b05

uninstall office 365 and re-install it.

Missing “Show text predictions while typing” in Outlook

Situation: The client has version of Outlook. One of them doesn’t have “Show text predictions while typing”.

Troubleshooting: Run Office 365 online repair by follow these steps:
  1. Type control on the search bar. Open Control Panel.

2. Click on Program and Features.

3. Highlight the Microsoft 365 and click Change

4. Click Yes on popup.

5. Check Online Repair and click on Repair. It may take a couple hours to complete.

The repair could take hours depends on your Internet speed. Now, you may have “Show text predictions while typing” feature looks like this: