A+ Core 1 All Domains

Question 1

Which of the following is a characteristic of an SSD compared to an HDD?

Accepted Answer

More resistant to physical shock

Question 2

A user reports that their smartphone screen does not respond to touch. What is the most likely hardware issue?

Accepted Answer

Broken touchscreen digitizer

Question 3

Which wireless standard operates only on the 5 GHz frequency?

Accepted Answer

802.11ac

Question 4

Which cloud service model provides only the hardware resources, requiring install of OS and applications?

Accepted Answer

IaaS

Question 5

What is the standard connector used for internal hard drives in modern desktop PCs?

Accepted Answer

SATA

Question 6

Which type of hypervisor runs directly on the hardware without an underlying OS?

Accepted Answer

Type 1

Question 7

What is the function of an uninterruptible power supply (UPS)?

Accepted Answer

Protects against data loss during power outages

Question 8

Which command is used to check the IP configuration of a Windows computer?

Accepted Answer

ipconfig

Question 9

What type of security feature allows a mobile device to be remotely erased if lost or stolen?

Accepted Answer

Remote wipe

Question 10

What is the purpose of a subnet mask?

Accepted Answer

Determines the network and host portions of an IP address

Question 11

Which of the following ports is used for HTTPS traffic?

Accepted Answer

443

Question 12

What is the main purpose of a mobile device's IMEI number?

Accepted Answer

Identifies the device on a cellular network

Question 13

What type of address is used by MAC filtering?

Accepted Answer

Physical Address

Question 14

Which connector is commonly used for wired networking in desktop computers?

Accepted Answer

RJ-45

Question 15

Which networking device operates at Layer 2 of the OSI model?

Accepted Answer

Switch

Question 16

What does RAID stand for in computer storage?

Accepted Answer

Redundant Array of Independent Disks

Question 17

What is the purpose of a proxy server?

Accepted Answer

Caches and filters web traffic for security and efficiency

Question 18

What is the function of the CMOS battery in a computer?

Accepted Answer

Stores BIOS settings when the system is off

Question 19

Which of the following network types is typically used within a single building or campus?

Accepted Answer

LAN

Question 20

What is the primary function of an accelerometer in a mobile device?

Accepted Answer

Detect motion and orientation

Question 21

7. What is the purpose of airplane mode on a mobile device?

Accepted Answer

Disables all wireless communications

Question 22

What is the primary purpose of virtualization?

Accepted Answer

To run multiple operating systems on a single physical machine

Question 23

What device is used to connect multiple network segments and forward packets based on IP addresses?

Accepted Answer

Router

Question 24

Which of the following is NOT a characteristic of cloud computing?

Accepted Answer

Requires physical presence of users in the data center

Question 25

What is the primary advantage of cloud computing?

Accepted Answer

Provides on-demand access to resources with scalability

Question 26

What is the maximum transmission speed of 802.11ac Wi-Fi?

Accepted Answer

1.3 Gbps

Question 27

Which of the following is NOT an example of an optical storage device?

Accepted Answer

NVMe SSD

Question 28

What is an example of a SaaS (Software as a Service) application?

Accepted Answer

Google Docs

Question 29

What does NAT (Network Address Translation) do?

Accepted Answer

Allows multiple devices to share a public IP address

Question 30

What is the function of a power supply unit (PSU) in a computer?

Accepted Answer

Converts AC power to DC power

Question 31

Which port is commonly used to connect a monitor to a computer? (Choose 2)

Accepted Answer

DP

Question 32

What is the function of a snapshot in virtualization?

Accepted Answer

Creates a backup of a virtual machine’s state

Question 33

What is a key benefit of virtual machines (VMs)?

Accepted Answer

They provide isolation from the host system

Question 34

What is the primary function of the GPU?

Accepted Answer

Perform specialized vector and cryptographic math

Question 35

Which type of display technology is commonly used in modern smartphones?

Accepted Answer

OLED

Question 36

Which of the following is a benefit of using a mobile device's VPN feature?

Accepted Answer

Encrypts internet traffic for security

Question 37

What is a common example of a Type 2 hypervisor?

Accepted Answer

Oracle VirtualBox

Question 38

Which cloud computing model provides hardware, operating systems, and development tools to customers?

Accepted Answer

PaaS

Question 39

Which memory type is volatile and loses data when power is lost?

Accepted Answer

RAM

Question 40

What does DHCP do in a network?

Accepted Answer

Assigns IP addresses dynamically

A+ Core 1 All Domains

Questions 40

A+ Core 1 All Domains

Questions 40