DECK 2 Flashcards
Heat sinks are blocks of copper or aluminum with fins
heat sinks are…, meaning no extra electricity required to cool
Liquid based cooling is quieter and more effective than air convection
-passive
SSDs can perform worse than HDDs in what way?
….uses AHCI while PCIe based SSDs use NVME
M.2 is 22mm x 80mm
In terms of service multi-gig files
-Sata
HDD form factors are 3.5 inches for PC and …for laptops
RAID 10 is striped mirrors and as long as one disk in each mirrored pair functions, data can be retrieved.
How many disk can fail in RAID 5?
-2.5
-2
SO-DIMM memory is common with laptops
Magnetic disk are…for laptops and 3.5 inches for desktop. SSDS are also the same size in laptops. M2s are smallest of all
M.2s have just a single screw
-2.5 inches
migrating from hdd to ssd is mostly done through images and clones
LCD advantages? Disadvantages are blacks are hard, and difficult to replace lights
Twisted Neumatic LCDs are the OGs but have poor…
low power and inexpensive
-viewing angles
IPS LCDs have excellent/best color but are…
VA LCDs have good color but slower response times than Twisted Neumatic
OLEDs are thin and use what to emit light?
-expensive
-organic compounds
Older LCDs used…but now use LED
Inverters convert DC to AC and are used with CCFLs
…..allows touchscreening
-CCFL
-digitizers
lightening cables go both ways and charge things faster
DB-9 are…cables and used for RS 232 (switches, routers, etc)
-serial
DDRAM is 1600MB/s
……PSUs have detachable cables for reducing number of cables needed
RAID has a logical striped volume (RAID 0) and what else?
-modular
-Two mirrors (RAID 1)
non-ECC UDIMMS and ECC UDIMMS do not mix.
ECC RAM needs 72 bits, not 64
…….mismatch causes display fuzziness
-One, short beep normal during POST
Secure boot is UEFI feature that prevents…
-resolution
-malware
Passive taps copy traffic from a cable to a monitor port
2G had GSM and…standards. LTE replaced both.
Original LTE is 150mbs, how much is LTE-A?
DHCP and TFTP use UDP
-CDMA
-300
HTTPS and SSH use what protocol
-TCP
If ya hear a beep then error message its either bad boot order or…
Config your apps to use GPS only when in app to save power
Virtualization: go for most cores and most RAM
-usb flash drive
If a server mentions dis are in degraded state, its a….issue
Hear ticking noise coming from pc= SAVE YOU DATA SON!
A VDI enviroment is company controlled and can be used to provision environments to third parties
-RAID
