DIHA exam Practice

Domestic IT Helpdesk Attendant v3

Your Name

Batch Name

Center Code

1. What is the first step in troubleshooting a computer issue?
Check power supply
Restart the computer
Ask the user about the issue
Open the CPU case

2. Which command is used to check network connectivity?
tracert
ping
ipconfig
nslookup

3. Which Windows feature allows you to restore your computer to a previous state?
Disk Cleanup
Task Manager
System Restore
Device Manager

4. What port does HTTP use by default?
20
21
80
443

5. What does BIOS stand for?
Basic Input Output System
Binary Integrated Operating System
Basic Integrated Operating Software
Built-In Operating Setup

6. What tool allows you to manage startup programs in Windows?
msconfig
cmd
services.msc
control panel

7. What is the purpose of Safe Mode in Windows?
To speed up startup
To run without GUI
To load only essential drivers
To prevent internet access

8. What does DNS stand for?
Digital Network Server
Domain Name System
Dynamic Name Setup
Domain Network Service

9. Which file system is commonly used in Windows?
EXT3
FAT16
NTFS
HFS+

10. What device assigns IP addresses on a network?
Firewall
DNS Server
Router
Switch

11. What is the shortcut for opening Task Manager in Windows?
MCtrl + Alt + Del
Ctrl + Shift + Esc
Alt + Tab
Ctrl + Esc

12. WWhich type of memory is volatile?
ROM
SSD
RAM
Flash

13. What does IP stand for?
Internet Protocol
Internal Program
Input Process
Integrated Protocol

14. Which one is a valid IPv4 address?
192.168.1.1
256.100.50.25
300.200.100.0
abcd::1234

15. Which device works at Layer 2 of the OSI model?
Router
Switch
Hub
Firewell

16. What is the function of a firewall?
Boost internet speed
Filter network traffic
Store user data
Assign IP addresses

17. Which tool shows background processes in Windows?
Control Panel
Task Manager
Cmd
Device Manager

18. Which file extension is associated with Windows executables?
exe
doc
zip
.bat

19. Which command is used to release an IP address?
ipconfig /release
ping /release
netstat /free
tracert /release

20. What is the purpose of the Device Manager?
View network activity
Manage hardware drivers
Install software
Uninstall programs

21. What is a common reason for a blue screen in Windows?
Outdated antivirus
Driver failure
Low disk space
Too many open tabs

22. What type of malware disguises itself as legitimate software?
Virus
Worm
Trojan
Spyware

23. Which key enters BIOS setup on most PCs?
F1
F2
F12
Del

24. Which of the following is NOT an operating system?
Linux
Windows
Photoshop
macOS

25. .Which command shows your computer's IP configuration?
ipconfig
netstat
ping
tracert

26. What is the default gateway?.
Primary DNS
Exit point to external networks
FIP address of your PC12
Subnet mask

27. What does SSD stand for?
Solid State Drive
Standard Storage Device
Super Speed DiskMare
Smart Storage Device

28. What kind of address is 127.0.0.1?
Broadcast
Loopback
Multicast
Public

29. Which tool allows remote desktop access?
TeamViewer
Excel
WinRR
Chrome

30. What type of backup backs up only changed files since last backup?
Full Backup
Incremental Backup
Differential Backup
Clone Backup

31. What is phishing?
Hacking files directly
Malware spreading
Tricking users to share info
Scanning network ports

32. What is the common connector type for Ethernet cables?
RJ-45
USB-C
HDMI
VGA

33. Which Windows command shows active network connections?
ipconfig
tracert
netstat
whoami

34. What command clears the DNS cache in Windows?
ipconfig /flushdns
Maldns /clear
ping /reset
tracert /flush

35. What does Ctrl + C do in the command prompt?
Copy text
Cancel command
Clear screen
Create folder

36. What is the common resolution for HD displays?
1024x768
1366x768
1280x720
1920x1080

37. What does a proxy server do?
Directs user to printer
Filters and forwards web requests
Blocks malware
Encrypts data

38. What is DHCP used for?
Manages disk space
Assigns IP addresses automatically
Encrypts files
Filters websites

39. What utility checks disk health in Windows?
chkdsk
ping
netstat
format

40. Which port is used for HTTPS?
80
21
110
443

41. What is two-factor authentication?
Password only
Fingerprint only
Password + extra verification
Security question only

42. What is the extension for a Windows batch file?
.bat
.exe
.cmd
.text

43. Which protocol secures websites?
HTTP
FTP
SSH
HTTPS

44. Which storage has no moving parts?
HDD
SSD
DVD
Floppy disk

45. Which keyboard key refreshes a webpage?
F5
f1
f10

46. Which OS is open-source?
Windows
Linux
macOS
iOS

47. What command lists files in CMD?
ls
list
dir
show

48. What is a UPS used for?
Back up files
Power backup
Boost Wi-Fi
Print documents

49. What is the main function of antivirus software?
Clean registry
Optimize disk
Prevent malware
Encrypt data

50. Which type of malware replicates itself to spread to other computers?
Trojan
Ransomware
Worm
Spyware