1101: Chap 3 - Hardware Flashcards
(78 cards)
F-type connector
used for Coaxial cabl. Threaded and screws into place
1101-Chap3-2: Of the following fiber connectors, which are used for duplex (two strands instead of one)? (choose two)
ST
SC
FC
LC
SC
LC
SC
- fiber connector
- square
- can be single or duplex connector
- 2.5mm
https://datasave.qsfptek.com/resources/image/2021-12-20962220.jpg
LC
- fiber connector
- square
- can be single or duplex connector
- 1.25mm and have a latch to keep in place
https://datasave.qsfptek.com/resources/image/2021-12-20962220.jpg
ST
fiber connector, bayonet connection
2.5mm
https://datasave.qsfptek.com/resources/image/2021-12-20962220.jpg
FC
- fiber connector, threaded coupling
- 2.5mm
https://datasave.qsfptek.com/resources/image/2021-12-20962220.jpg
T568A standard
network cable
colors:
green stripe
green
orange stripe
blue
blue stripe
orange
brown stripe
brown
https://cdn.cableorganizer.com/images/articles/networks/t-568a.jpg
T568B standard
network cable
colors:
orange stripe
orange
green stripe
blue
blue stripe
green
brown stripe
brown
https://cdn.cableorganizer.com/images/articles/networks/t-568B.jpg
How many pins on a DDR4 SODIMM?
260 pins
How many pins on a DDR3 SODIMM?
204 pins
How many pins on a DD5 SODIMM
262 pins
What is the size of a Nano-ITX mobo?
4.7” square
What is the size of a mini-ITX mobo?
6.7” square
What is the size of a pico-ITX mobo?
3.9” x 2.8”
What is the size of a mobile-ITX mobo?
2.4” square
1101-Chap3-12: The DC Power Supply within a laser printer converts AC power into what three voltages? (Choose three)
+5v DC
-5v DC
+24v DC
-24v DC
- +5v DC - for logic circuitry
- -5v DC - for logic circuitry
- +24v DC- for paper transport motors
1101-Chap3-14: A technician is considering whether to buy a new LCD. Which type of LCD has faster response times than the others?
TN
VA
IPS
Plasma
TN
RAID 0
no redundancy; strips data across multiple disks. Done for performance increase; minimum 2 disks
RAID 1
mirroring; minimum of 2 drives
RAID 5
striping w/ Parity, need 3 drives; parity bit is the third write; the parity info is used to maintain data is one of the drives failed. The parity information is used to rebuild the lost data in the stripping; capacity 2/3rds of total of all drives
RAID 10
aka 1 + 0: requires at least 4 drives. Does stripping and mirroring; 2 mirrored sets that are stripped
1101-Chap3-21: You are working on repairing a defective laser printer. Which of the following is a true statement regarding the imaging drum in a laser printer?
It can hold a high negative charge only when its not exposed to light
It can hold a high negative charge only when its exposed to light
It can hold a high negative charge regardless of light exposure
It is not requried to hold a charge
It can hold a high negative charge only when its not exposed to light
What are the 7 steps of laser printing?
- processing: formatter board receives instructions for processing:
- charging/conditioning: drum gets a strong negative charge
- exposing/writing: laser assembly and mirror writes image to drum (strong negative charge to slight negative charge)
- developing: toner is attracted to negative charge
- transfering: positive charge is put on paper, toner moves from imaging drum to paper
- fusing: paper is heated to lock toner to paper
- cleaning: all charges and extra toner on imaging drum are removed
1101-Chap3-31: Which of the following connectors transmit analog signals? (choose two)
VGA
RJ-45
RJ-11
HDMI
VGA
RJ-11