3.0 Hardware Flashcards
iCAT5e(Ethernet)
-What speeds?
Twisted Pair cable.
Supports Gigabit Ethernet (10/100/1,000Mbps).
CAT6(Ethernet)
(Hint: Cat 5e x 10)
Twisted Pair cable.
Supports 10G Ethernet (10/100/1000/10,000Mbps) and reduces crosstalk for more reliable connections at Gigabit speeds.
Plenum
-When is it used for cabling?
An air space in a building, such as HVAC ductwork or a suspended ceiling.
-You should use only plenum grade cables anytime you need to run your cables through ventilator shafts, under floors, or inside a suspended ceiling
UTP(Unshielded twisted pair) (ethernet)
-What kinds are common UTP cables?
Unprotected (4 pairs)cables which are vulnerable to
electrical or radio interference
-CAT cables
3.1
STP (Shielded twisted pair)
- Has a ___ wire
- Examples
Shielded against interference and crosstalk
- grounding
- CAT 7
3.1
coaxial cabling
-What network is it used with?
Ex:
copper conductor wire that is shielded
- WAN modem
- RG-6
3.1
568B(twisted pair standard)
(Striped to Solid, blue in mid)
OhBiGBee
uses the following wires from pins 1 to 8: orange white, orange, green white, blue, blue white, green, brown white, brown.
568A(twisted pair standard)
(Striped to Solid, Blue in mid)
GeeBOB
uses the following wires from pins 1 to 8
green white, green, orange white, blue, blue white, orange, brown white, brown
3.2
RG-59
-What’s it for?
Coaxial cable used to distribute TV signals in a home or office.
-Patching cables
3.2
RG-6
-What modem connection uses it?
(remote gee)
Coaxial cable used to distribute HDTV signals in a home or office.
-digital modem connection
3.1
Multi-mode fiber optic cabling
-What range?
Can carry multiple light rays, and uses LED light source
- 2km or 550m
3.1
Single mode fiber-optic cabling
-What range?
Uses a single core to carry a light ray, and uses lasers as a source
-80km
3.2
RJ-45
-Other connector name?(hint: 8,8)
Ethernet connector for LAN
-8 position, 8 connector
3.2
RS-232 standard
(hint: remnant)
- What’s it used as?
a legacy standard associated with serial port
- configuration port on a switch or a router or a firewall,
3.2
DB-9
(actually DE-15)
-Commonly used with this standard(serial)
A 9 pin legacy connector, used for keyboards, mice, joysticks
-RS-232
3.2
Molex connector
-What volt connectors?
A 4-pin power connector used for desktop PATA drives and some add-on cards.
- Molex connectors can be adapted to SATA drives, case fans, and Bern connectors (used for floppy drive power).
- 12 and 5 volt
3.2
RJ-11(analog)
-What other connector name(hint: 6,2)
4-6 pin copper connector used with telephone cabling
-6-position 2-conductor connector
- 2 RJ-14 connector
- What other connector name(hint: 6,4)
-six-position four conductor
3.2
SC connector
Used with fiber optic cables
3.1
USB(Universal Serial Bus)
popular connector
3.1
What is this?
- What advantage over other chargers?
- When can it support USB 3.1(requirements)?
USB-C
- Used to charge smarrtphones, laptops, and security cameras
- Doesn’t have a top or bottom
- 3.1 speeds, more than 7.5 watts on the cable, and has to support alternate mode
- 1 USB 1.1
- What speeds and distance?(low speed)
- What speeds and distance?(high speed)
- What connectors?
- 1.5 megabits per second over a maximum cable length of three meters
- 12 megabits per second over 5 meters
- A-plug
3.1
USB 2.0
- What range and speed?
- What connectors?
- 480 megabits a second and 5 meters
- Standard A-plug
3.1
USB 3.0(SuperSpeed)
-What speeds and distance?
-5 gigabits a second up to 3 meters
3.1
USB 3.1
-What speeds?
-10 gigabits per second
USB 3.1
-Speeds?
-20 gigabits a second
- 1 Thunderbolt Version 1
- Sends data over ___ channels
- Uses per second on each channel
- 2 channels
- 10 gigabits a second
3.1
Ethernet standards
A set of standards for network communication in LANs
3.2
BNC connectors(Bayonet Neill-Concelman)
- What 2 famous coaxial cables are they used with?
- What type of network do they connect
a connector used to attach coaxial cables
- RG-59 and RG-6
- WAN
3.2
F connector(what is it for?)
-What 2 cables(usually)
A connector used for cable, satellite, and fixed wireless Internet and TV service.
-RG-59 and RG-6
3.1
DisplayPort
-How many displays can it link to?
A cable and port primarily used to transmit video that can also send audio and USB signals.
-Can link multiple displays
3.1
Thunderbolt
- What 2 ports does it use?
- What standard is it based on?
An Intel-developed ultra-high-speed I/O interface that is available in three versions
- Supports mini DisplayPort and USB-C ports
- NDP
3.1
Serial
A serial communication physical interface (also known as a COM port) through which information transfers in or out 1 bit at a time.
3.1
SATA(Serial AT Attachment)
- SATA 1.0 speeds(GBps)
- SATA 2.0 speeds(GBps)
- SATA 3.0 speeds(GBps)
- SATA 3.2 speeds(GBps)
A version of ATA that uses thin data and power cables to transmit data serially
- at rates of 1.5Gbps
- 3.0Gbps
- 6.0Gbps
- 16Gbps
3.1
What is this
-How many drives does it support
IDE(Integrated Drive Electronics)
3.1
EIDE(Enhanced Integrated Drive Electronics)
-How many drives does it support
Advanced IDE
-4 drives
3.1
SCSI(Small Computer Systems Interface)
-What does daisy chaining allow(narrow vs wide)
A flexible interface that can be used for hard drives and optical drives, scanners, and other devices.
-Narrow SCSI interfaces enable daisy chaining of 7 devices to a single port. Wide SCSI enables daisy chain-ing of up to 15 devices to a single port.
3.3
error-correcting code (ECC)
-What’s it used in?
Advanced memory that can correct data errors and requires special chipsets.
-Used primarily in servers.
3.3
parity memory
A method of checking reliability of data transmission using extra parity bits in the transmission.
3.5
PCI (Peripheral Component Interconnect) bus
- PCI interface cards communicate over a paralllel connection, with __ or __ bit communication
- What PCI- series will accept PCI?
- 32, 64
- PCI-X
PCI (Payment Card Industry)
standards that protect a cardholder’s data.
3.5
PCI Express (PCIe)
-Older legacy expansion slots?
a high-speed set of serial bus communication channels used by adapter cards.
-PCI, PCI-X, AGP
3.5
riser card
-What?
-
- A device used to work around limited space in some systems.
- Riser cards can make multiple ports available from a single slot bracket or slot or enable full-size cards to be mounted horizontally in low-profile systems.
intrusion detection/notification
A notification from an IDS device about threats that might not be detected by a firewall.
3.5
TPM (Trusted Platform Module)
A chip used by Windows editions that support the BitLocker full-disk encryption feature to protect the contents of any specified drive (Windows 7/8/8.1/10).
3.5
LoJack
A popular security feature embedded in the laptop BIOSes of a number of systems and can be added to other systems.
3.5
virtualization support
Hardware-assisted virtualization with BIOS/UEFI and CPU support.
3.5
hardware-assisted virtualization
The process of using hardware resources, especially RAM, to assist in the management of virtual machines.
3.5
Overclocking
-What side effects can happen?
Increasing a component’s clock rate to run at a higher speed than it was designed to run.
-Overheating and system instability
3.5
heat sink
A finned metal device that radiates heat away from the processor.
3.5
video card
An expansion card that generates video signals and displays them on a monitor.
3.6
KVM switch(Keyboard-video-mouse switch)
-What is it(used in data center)
-a hardware device that allows a user to control multiple computers from one or more sets of keyboards, video monitors, and mice
3.6
NFC(Near Field Communication)
Ex:
a feature included in many mobile devices such as tablets for data transfer and shopping.
Ex: Apple Pay, Android Pay
3.1
VGA(Video Graphics Array)
(hint: roman number V)
describes an analog video interface that uses a 15-pin connector, commonly referred to as a DE-15.
3.1
SVGA(Super Video Graphics Array )
(looks the same as VGA)
3.1
High-Definition Multimedia Interface (HDMI)
- Range?
- What kind of connector(letter)?
A compact audio/video interface for transmitting uncompressed digital data.
- 20 meters
- 19 pin A connector
3.1
mini-HDMI
-What kind of connector(letter)?
A type of cable/connector used by smartphones and portable media players
-C connector
3.7
power supply
Used to power a computer
3.5
single-core processor
3.5
multicore processor
multiple CPU’s on one die
3.5
Hyperthreading
-__ is improved
Allows for processing two execution threads within a single processor core.
-Efficiency
3.5
ATX(Advanced Technology eXtended)
- How many pin connector for power supply?
- How many pin connector for CPU power?
- How many expansion slots?(PCI)
- Memory slots(RAM)
- 24-pin connector
- 4 or 8 pin connector for CPU power.
- 6
- 4
3.5
micro-ATX
- How many expansion slots?
- Case size vs ATX?
a reduced-size ATX-family motherboard that supports up to four expansion slots. Usually incorporates video ports and only two memory slots.
- 4 expansion slots
- Same size
3.5
mini-ITX
- What’s it used form?
- How many memory modules?
- How many expansion slots?
- media streaming
- 2 memory modules
- 1 expansion slot
3.5
miniPCIe
Used in laptops and mobile devices
3.5
expansion slots
-
A slot used in motherboards to provide support for additional input/output (I/O) devices and high-speed video/graphics cards.
3.5
bus speeds
The speeds at which different buses in a motherboard connect to different components.
Basic Input/Output System (BIOS)
(ROM BIOS)
-Where is it stored?
firmware or software that’s used to get your computer running.
-Flash memory
3.5
power-on self-test (POST)
-hardware check then bootloader check
3.5
Secure Boot(UEFI)
- What does it check?
- What operating systems is it available on?
- Looks at core files for a digital signature, and if not , it doesn’t boot
- Windows, Linux
3.5
primary VGA BIOS
A setting in BIOS that allows you to choose which video card to enable if two are installed (for example, one VGA and one graphics adapter).
3.4
CD-RW(Compact Disc Rewriteable)
3.4
DVD-RW DL(Rewriteable Dual Layer)
3.4
Blu-ray
-How many gigabytes of in formation can it hold(single and dual layer)
- An optical medium originally developed for HD movies;
- capacity of 25GB single-layer and 50GB in dual-layer; also referred to as BD.
3.4
BD-R Recordable Blu-ray (BD)
Blu-ray standard disks that are readable but not writable.
3.4
BD-RE (Recordable Blu-ray_ (BD)
Blu-ray standard disks that can be written to and erased for reuse multiple times.
CD-ROM
-(How many megabytes of data can it hold)?
-disc was able to hold approximately 700 megabytes of information.
DVD-ROM(Digital Versatile Disc.)
-How many gigabytes can it hold?(single and dual layer)
4.7 gigabytes of information on a single layer DVD-ROM, and it will hold 8.5 gigabytes for a dual layer DVD
3.4
M.2
-(relation with SSD) and size(compared to RAM)
-SSD interface which is about the size of a RAM stick
3.4
Non-Volatile Memory Express (NVMe)
a protocol that allows very high speed access to Solid State Drives (SSDs).
3.4
spin rate
The speed at which hard disk media turns.
hybrid drive
A drive that is a combination of a standard SATA hard disk with up to 8GB of the same type of solid state (SS) memory used in solid-state drives (SSDs).
3.4
flash memory
A type of memory that can retain its contents without electricity.
3.4
hot-swappable drive
A drive that can be safely removed from a system or connected to a system without shutting down the system.
3.3
RAM(random access memory)
temporary memory used for programs and data in use
3.3
SDRAM(Synchronous Dynamic RAM)
- What does the synchronous mean?
- What devices use them?
- it is synchronized with the common system clock of your computer
- desktops and laptop computers
SDR SDRAM
a type of RAM that is now legacy.
DDR SDRAM
3.3
DDR2 DIMM(how many pins)
(legacy)
-What memory memory types is it backwords compatible with?
-None
3.3
DDR3 DIMM
- How many gigabytes of memory?
- What is is backward comptaible with?
- 16 gigabytes of memory
- None
3.3
DDR4
- How much memory?
- What is it backwards compatible with?
- 64 gigabytes
- Not backwards compatible
3.3
DIMM(Dual inline memory module)
- has a __ bit data width
Used in pcs,servers and printers
-64
3.3
SODIMM(Small Outline DIMM)
-How many pins does DDR3 SODIMM have?
Used in laptops,notebooks and routers
-SODIMM DDR3 has 204 pins
3.3
single channel
A single RAM slot on an earlier motherboard.
3.3
multi channel memory
A motherboard feature in which two identical memory modules(RAM) are treated as a single logical unit for faster access.
3.3
triple channel
A motherboard technique used to triple RAM speed.
3.4
Striping(RAID 0)
split a file between two or more different drives
3.4
Mirroring(RAID 1)
Copy information into 2 drives
3.4
RAID Level 5 (RAID 5)
-What happens if we lose a disk?
- striping with parity
- Recover it becuase of parity
3.4
RAID Level 1+0 (RAID 10)
(nested)
-Striping plus mirroring
- 4 RAID drives required(min)
- How many drives does RAID 0 need
- How many drives does RAID 1 need
- How many drives RAID 5 need?
- How many drives RAID 10 need?
- 2 drives
- 2 drives
- 3 drives
- 4 drives
What does virtual printing include?
Hint: Print to ____
XPS(XML Paper Specification), PDF and image
3.1
PS/2 device(keyboard/mouse) is not ___
hot swappable
3.1
What is an SPDIF(Sony/Philips Digital Interface) port used for?
transmits a digital audio signal and comes in two types, coaxial and optical
When you select Print to File in Microsoft Word, what will be the file extension of the new file?
.prn
DVI-D
Carries only digital video signals
DVI-I
Carries both digital and analog signals
3.1 DVI-A
(what signals)
supports analog signals
HMDI(High-Definition Multimedia Interface)
carries a high definition digital video signal and a digital audio signal in a single cable
VGA
carries an analog video signal
3.5
How would you change/upgrade the BIOS
Download a new program from the motherboard manufacturer and flash the BIOS chip.
3.2
DB-15
(dead)
uses a 15-pin connector for sound cards , legacy network cards + devices
GPT(GUID Partition Table)
used with a 64-bit operating system, supports hard drives up to 256 TB in size, and allows the creation of up to 128 primary partitions
3.7
multiple rail power supply characteristics
Multiple 12+ volt outputs
3.7
single rail power supply
single 12 volt rail that is providing those volts to the motherboard
3.7
How are watts calculated?
Amps x volts
AHCI(Advanced Host Controller Interface )
(hint:SATA)
A setting for SATA drives in BIOS to enable them to be hot-swappable
3.5
What is this?
A SATA port
4.2
Hypervisor
virtualization that runs directly on the physical hardware
Host/guest virtualization
uses a VMM that runs several virtual guest operating systems inside a real host operating system.
3.4
Common flash memory types
CompactFlash, xD,MicroSD, SD
3.3
When installing RAM, how would you check that system supports parity or ECC memory?
check the system BIOS memory configuration(Advanced or Chipset screen)
-Find the information on the motherboard manufacturer’s website
3.5
AMD Trinity series CPU is compatible with what socket?
FM2
3.5
Which BIOS setting should you disable if you need to install a sound card?
HD Azalia in BIOS/UEFI
A 24-pin (or a 20-pin) ATX connector provides power to the motherboard. An 8-pin (or a 6-pin) PCIe connector provides 12-volt power to high-performance and midrange video cards. An 8-pin EPS connector provides 12-volt power to the CPU.
3.1
miniDisplayPort
Uses the same connector as Thudnerbolt 1 + 2
3.7
voltage
the pressure of the electrons that are being pushed through that particular wire
Printer overview
XGA
Extetended Graphic Array
An 8-pin (or a 6-pin) PCIe connector provides 12-volt power to high-performance and midrange video cards
An 8-pin EPS connector provides 12-volt power to the CPU.
3.2 DE-15
A connector also known as the VGA connector
3 Audio port colors
- 1 twisted pair (copper)
- balanced power operation
-two wires that interact with each other. They’re both sending the same information– one is a positive value and one is in negative value.
2.8 Because wires are twisted there will be a__
- wire always moving away from any potential interference, and when this information gets to the other end of the wire, those opposite signals can be compared to each other to reconstruct anything that may have been corrupted by this interference.
2.8 different pairsr of cables are twisted at__
different rates
- 8 EIA(Electronic Industries Alliance)
- their standards usually start with an RS
alliance of trade organizations and they create standards for the entire industry.
-Recommended standard
- 8 TIA(Telecommunications Industry Association )
- Commercial Building Telecommunications Cabling Standard(ANSI/TIA/EIA-568)
cabling standard
-cabling infrastructure standard
2.8 International ISO/IEC 11801 cabling standards
define international standards for any organization
- 8 -100BASE-TX speeds
- 1000BASE-T speeds
- What lengths?
- What Cat?
- 100 megabits
- 1,000 megabits
- 100 meters
- Cat 5/5e
- 8 10GBASE-T
- Speed?
- Distance?(Cat 6)
- Distance?(Cat 6A)
- 10Mbps
- 37 to 55m
- 100m
- 1 Plenum fire hazard
- How
- What cable should you run inisde a plenum to prevent this?
- Outer jacket is made PVC, which emits fumes toxic to humans
- use a plenum-rated cable(FEP or ow-smoke polyvinyl chloride)
- 1 eight-conductor 100-ohm balanced twisted pair cabling
- What’s the other name for the RJ45 connector that’s on the end of your ethernet cable?
- -that you would run the pin-outs associated with ____ if you’re running cabling horizontally but many companies run the ____ standard
–What you don’t want to do is terminate one side of the cable with the ___ pin-out and the other side of the cable with the ___ pin-out
T568A and T568B
-eight position, eight conductor connector.
–T568A, T568B
3.1 fiber optic advantages vs copper cabling
(transmitted by light)
longer range and avoids RF/electric interference
3.1 optic fiber diagram
ferrule protects the optic fiber
3.1 VESA(Video Electronic Standards Association)
royalty-free standard(DisplayPort)
- 1 Single and dual-link connections
- single link supports ____
- dual link supports _____
- 3.7 gigabits of throughput which allows you to have HDTV at 60 frames per second.
- 7.4 gigabits per second
3.1 Micro Usb
(disadvantage over Lightning connector)
has to be inserted a certain side
- 1 Thunderbolt Version 2
- how many channels?
- Total throughput?
- aggregation
- 20 gigabits
- 1 Thunderbolt Version 3
- Max throughput
- Connector?
- 40 gigabits per second
- USB-C
- 1 Thunderbolt range?
- Extended range
- How many devvices can you daisy-chain?
- 3 meters
- 60 meters
- 6 devices
- 1 Mini-B and Micro-B plug
- Where are they seen on?
-mobile devices, smaller components
- 1 PATA(Parallel AT Attachment) drives
- Ranges(thoroughput) speeds
legacy storage interface
-16 to 133 megabytes a second
- 1 PATA cables
- On a 40-wire cable, device 0 is the ___ to the motherboard, and device 1 would be the ____ away.
- On an 80-wire cable, Device 0 will be _____ from the motherboard, and device 1 will be ___.
- How many drives can you support on a single PATA ?
- The 80 wire PATA drives ground to reduce ___
- closest, farthest
- farthest, closest
- 2 hard drives
- crosstalk
- 1 SCSI buses
- How many devices on the narrow bus SCSI?
- How many devices on the wide bus SCSI?
- 8 devices
- 16 devices
- 1 SCSI used
- Advantage for configuration?
- IN virtual machines, physical drive arrays
- Just assign an ID number for a device connected to a SCSI bus