comptia a+ practice

APIPA / Link-Local address

169.254.x.x

802.11a

Data transmission rate: 54 Mb/s

Operates in 5 GHz band

802.11b

Data transmission rate: 11 Mb/s

Operates in 2.4 GHz band

802.11g

Data transmission rate: 54 Mb/s Operates in 2.4 GHz band

802.11n

Data transmission rate: 300-600 Mb/s

Operates in 2.4 GHz and 5 GHz band

802.11ac

Data transmission rate: up to 1.7 Gb/s

Operates in 5 GHz band

802.11ax

Data transmission rate: up to 9.6 Gb/s

Operates in 2.4 GHz and 5 GHz bands.

Type-1 Hypervisor

also known as a bare-metal hypervisor, runs directly on the host's hardware to manage guest operating systems

Type-2 Hypervisor

runs on top of a host operating system and relies on it for resource management, allowing for easier management of virtual machines.

Thunderbolt 1

supports up to 10 Gb/s and uses the Mini DisplayPort connector.

Thunderbolt 2

supports up to 20 Gb/s and uses the Mini DisplayPort connector.

Thunderbolt 3

supports up to 40 Gb/s, utilizes the USB-C connector, and is compatible with USB and DisplayPort

USB 1.1

runs at 12 Mb/s with max cable length of 3m

USB 2.0

runs at 480 Mb/s with a maximum cable length of 5 meters.

USB 3.0

runs at 5 Gb/s with a maximum cable length of 3 meters.

USB 3.1

runs at 10 Gb/s with a maximum cable length of 3 meters.

Bluetooth Version 1

speed of 721 Kb/s

Bluetooth Version 2

speed of 2.1 Mb/s

Bluetooth Version 3

speed of 24 Mb/s

Bluetooth Class I

range of 100m

Bluetooth Class II

range of 10m

Bluetooth Class III

range of 1m

Laser Printer

A type of printer that uses a laser beam to produce high-quality text and graphics on paper, utilizing toner rather than ink.

Impact Printer

A type of printer that forms characters and images by striking an inked ribbon against the paper, producing a printed image through physical impact.

Inkjet Printer

A printer that uses tiny droplets of liquid ink to produce text and images on paper, commonly used for color printing.

Thermal Printer

A printer that produces images by applying heat to specially coated thermal paper, commonly used for receipts and labels.