Google IT Support Professional Practice Test

1. What is the primary purpose of the BIOS in a computer system?

Manage all application software running on the computer

Initialize hardware and load the operating system

Store permanent user files and documents

Control internet connectivity and network protocols

2. Which of the following best describes the role of DNS in networking?

Encrypts data during transmission across networks

Translates domain names into IP addresses

Manages physical network cables and switches

Authenticates user credentials on a network

3. What does DHCP do on a network?

Automatically assigns IP addresses to devices

Encrypts all network communication

Routes data between different networks

Manages user permissions and access control

4. In Active Directory, what is the primary function of a Group Policy?

To manage user and computer settings across a network

To encrypt all network traffic automatically

To monitor employee internet usage

To allocate bandwidth to specific applications

5. Which of the following is NOT a valid IPv4 address?

192.168.1.1

10.0.0.255

256.256.256.256

172.16.0.1

6. What is the primary advantage of using a VPN for remote IT support work?

It increases internet speed significantly

It encrypts data and secures remote connections

It eliminates the need for firewalls

It reduces the cost of IT infrastructure

7. When troubleshooting a slow computer, which is typically the first component to check?

Hard drive capacity and free space

CPU temperature and thermal paste

RAM usage and available memory

Graphics card drivers and updates

8. What does RAM stand for, and what is its primary function?

Random Access Memory; temporary storage for active processes

Read-Only Memory; permanent storage of system files

Redundant Array of Memory; backup storage system

Remote Access Module; enables remote connections

9. What is the difference between a full backup and an incremental backup?

Full backups are faster; incremental backups store more data

Full backups copy all data; incremental backups copy only changes since last backup

Full backups are only for databases; incremental backups are for files

There is no practical difference between the two methods

10. What is the purpose of a firewall in IT security?

To permanently delete malware from the system

To monitor and control incoming and outgoing network traffic

To replace antivirus software entirely

To prevent users from accessing the internet

11. In Windows, which command-line tool is used to check network connectivity to a specific host?

Ipconfig

Tracert

Ping

Netstat

12. In macOS, what is the equivalent of Windows Task Manager for monitoring system processes?

System Preferences

Activity Monitor

Console

Disk Utility

13. Which file system is most commonly used on modern Linux distributions?

NTFS

FAT32

Ext4

HFS+

14. Which protocol is commonly used for secure remote access to servers?

HTTP

Telnet

SSH

FTP

15. What is the primary role of a proxy server in a corporate network?

To replace the need for a router

To filter traffic, cache content, and provide security

To increase the physical speed of internet connections

To eliminate the need for firewalls