Knowledge

Question 1

Inverter

Answer 1

DC to AC

Question 2

LCD

Answer 2

Liquid Crystal Display
- lightweight
- low power and inexpensive

• requires backlight
  -black level is a challenge

Question 3

TN

Answer 3

Twisted Nematic

• fast response = Gaming
• poor viewing angles
• low color quality
• OG tech

Question 4

SO-DIMM

Answer 4

Small outline dual in line memory module

• memory used for laptops

Question 5

HDD

Answer 5

-Traditional spinning drive platter
- 2.5 in for laptop
- 3.5 for desktop

Question 6

SDD

Answer 6

• All memory, no moving parts
• silent, fast access time, less latency
• 2.5 in
• 1.8 in

Question 7

M.2

Answer 7

• Small form factor
• No SATA data or power cable
• Easy to install and replace

Question 8

Migration from HDD to SDD

Answer 8

Method 1
- Install an OS on SDD
- Manually move user document over to new drive
Method 2
- Image/Clone the HDD
Method 2.1
- Create image file
- 1 drive at a time
-Create multiple copies across multiple system
Method 2.2
- Drive to drive image
- Image directly from 1 drive to the other
- Taking everything from 1 sys and copying sector by sector to another drive
- requires 2 system running simultaneously or system supports multiple drive running simultaneously

Question 9

PAN

Answer 9

personal area network

-Bluetooth

Question 10

NFC

Answer 10

Near field Communication

• 4cm or less

Question 11

IPS

Answer 11

In Plane Switching
- excellent color rep
- wide viewing angle

• more expensive than TN
• slow response time

Question 12

VA

Answer 12

Vertical Alignment
- bwt TN and IPS
- Good color rep
- High Contrast Ratio
- Good viewing angle

• Slower response time than TN

Question 13

OLED

Answer 13

Organic Light emitting diode

• no backlight
• thinner and lighter, flexible
• very accurate color rep
• better contrast ratio and color rep than LCD
• higher cost and lower brightness than LCD

Question 14

Hub

Answer 14

multi port repeater

half duplex

Question 15

Cable Modem

Answer 15

-Data on “cable” network
- Coaxial Cable
- Shared bandwidth
-Broadband
- Highspeed networking

Question 16

DSL Modem

Answer 16

ADSL
- use telephone line
- dedicated bandwidth
- Twisted pair copper cabling

Question 17

ONT

Answer 17

Optical Network Terminal
- AKA FIBER
- connect ISP fiber network to copper network

Question 18

Port Replicator

Answer 18

• Similar to docking station
• Does not commonly have an expansion slot

Question 19

GSM

Global System for Mobile Communication

Answer 19

• 90% of market
• Move your SIM card from phone to phone
• Multiplexing (everyone gets a little slice of time)

Question 20

CDMA

Code Division Multiple Access

Answer 20

• Everyone communicate at the same time
• Each call use a different code

Question 21

2G

Answer 21

• Poor data support
• orginally used circuit-switching
• minor upgrade for some packet-switching

Question 22

3G

Answer 22

• upgrade data connectiviety over 2G
• improved speeds = several Mbit/s
• Bandwidth improved allowed new functionality (GPS, Mobile TV, Video on Demand, Video conferencing)

Question 23

4G and LTE

Answer 23

LTE - converged standard of GSM and CDMA providers
- Based on GSM and EDGE
- support download rate of 150 Mbit/s

LTE-A
- support rate of 300 Mbit/s

Question 24

5G

Answer 24

• significant performance improvement
• high freq, 10 Gbit/s
• IoT impact, faster monitoring and notification, large data transfer, additional cloud processing

Question 25

GPS

Answer 25

• Needs at least 4 satellites for precise navigation
• location based on timing difference (longitiude, latitude, alititude)

Question 26

DPL

Data Loss Prevention

Answer 26

• prevent someone from sending and email containing PII and senstive info
• blocks data if it finds a pattern match

Question 27

Legal Hold

Answer 27

• Mailbox has no mailbox limit
• Any deleted emails are retained in purges folder
• prevent user under investigation from deleting emails

Question 28

Conservation Mode

Answer 28

• battery only charges to 50-60%
• Smartphone goes into low power mode
• GPS does not work

Question 29

Digitizer

Answer 29

Device that recieves, processes and record digitally any analog info

Question 30

SDN

Software Defined Networking

Answer 30

• Allows rapid provisioning and deprovisioning networks in a virtual environment
• allows script
• Simplify netwokr infrastructure management

Infrastructure layer - Process network frames and packets (forwarding, trunking, encrypting, NAT)

Control layer - Manages action of data plane (Routing table, session table, NAT table, dynamic routing protocol updates)

Application layer - Configure & manage device (SSH, Browser, API)