Hardware

Category 5, 5e cable supported distance (1000BASE-T)

100 meters

Category 6, 6A cable supported distance (10GBASE-T)

55 meters (unshielded)

100 meters

Plenum-rated cable is made of what?

FEP or PVC

Coaxial cables is also known as

RG-6

You can terminate one side of a T568A cable with a T568B true or false?

False, there is no crossover between the two standards

Which USB connector type is reversible?

USB-C (not annoying like A)

USB 3.2 1x2 and 2x2 speeds

10/20 Gbit/sec

Thunderbolt max distance (copper and optical)

3 meters, 6 meters

The three types of DVI connectors

A, D, I

(Analog, Digital, Integrated)

DVI speeds (single and dual link)

3.7, 7.4 Gbps

SATA 3.2 Transfer Rate

16 Gbps

How many devices on a SCSI bus?

8 (narrow), 16 (wide)

Advantage of serial attached SCSI over parallel

Increase throughput, no termination needed

HDMI is only backward compatible with this version of DVI

D

6P2C cable used for phone or DSL connection

RJ11

Connector used for cable/cable tv

F connector

Molex connector

4 pin, 12v and 5v

Three types of fiber connectors

ST (straight tip), SC (subscriber), LC (lucent)

Data width of DIMM

64 bits

Advantage of SDRAM

(S)ynchronous with system clock, increasing speed

ECC and parity memory are examples of what? And where might they be useful?

Memory that checks itself, useful for servers, critical databases

How SATA moves drive data to RAM

AHCI (Advanced Host Controller Interface)

What drive data needs to be transported with SSD

NVMe

RAID

Redundant Array of Independent Disks

RAID 0 (striping)

at least 2 drives, ZERO redundancy, high performance

RAID 1 (mirroring)

at least 2 drives, high redundancy, drive failure does not affect data availability

RAID 5 (striping with parity)

at least 3 drives, high redundancy, most common

RAID 10 (stripe of mirrors)

at least 4 drives, best redundancy, most expensive (most drives)

You can add an ITX motherboard into an ATX case True or False?

True, ITX is adaptable

Power 24 pin motherboard provides:

3.3v, 5v, 12v using direct current (DC)

What might you connect to PCIe slots?

SSD, CPU, GPU

AMD is value, Intel is

performance

The "big 4" to check when a system fails to boot

CPU, RAM, MOBO, GPU

When to use secure boot

System is infected with malware or is not booting correctly

If there is an issue with the date and time it's most likely a problem with this

CMOS battery

Some things you can do in BIOS

set boot order, overclocking, WOL, temperature monitoring

Typical normal temperatures for CPU/GPU

60 degrees Celsius (CPU)

70 degrees Celsius (GPU)

How the system verifies the bootloader in BIOS secure boot

digital signature or manually-approved signature

What is TPM (Trusted Platform Module)?

hardware to help with encryption-generates keys/numbers

What is a HSM (Hardware Security Module)?

high end cryptographic hardware for large environments

HTT

Hyper-Threading Technology-one CPU acts as two

What directory would you use to find apps on a 64 bit and 32-bit Windows OS?

\Program Files

\Program Files (x86)

Where to manually install drivers (windows)

Device Manager

Amperage (A) vs. Voltage (V)

rate vs pressure of electron flow

Amps x volts =

Watts (W)

PC power requires AC or DC power?

DC converted from AC (outlet)

What is a multifunction device? (MFD)

Printer, scanner, fax machine

MFDs typically use these connectors

USB-B, RJ45/ethernet

Printer language created by HP

PCL (printer command language)

Printer language created by Adobe

Postscript (for more high end equipment)

How many pins on SATA connector? (Power and Data)

15 (power), 7 (data)

Part(s) laser printers use to add color to page

Transfer belt and roller

Corona wires in laser printers do this

Prepare the photosensitive drum to draw toner to the page

What should you do last when installing a maintenance kit?

Reset page counter (to know when next maintenance will be required)

What to use when cleaning a laser printer?

Damp cloth, cold water, isopropyl alcohol (IPA)

How many pins on a dot matrix (impact) printer?

9-24

Worst enemy of thermal printer paper

heat

Describe 3D printing

Filament and resin is hardened by UV light layer by layer rendered from an image on the screen

7 steps of laser printing

-processing

-charging

-exposing

-developing

-transferring

-fusing

-cleaning

(please chuck eggs down the first corridor)

What are PoE injectors? (power over ethernet)

adapters that allow you to power other devices over the network