Mobile Devices

Question 1

Hard Drive
SSD(Laptops)

Answer 1

Solid State Drive - Lower temps, no moving parts, no noise, .1ms access time, 5% failure rate, less storage but more money to pay if want more storage.

Question 2

Hard Drive
HDD(Laptops)

Answer 2

Hard Disk Drive - hot, high power, moving parts, more noise, 5.5 - 3.0 ms, 2-5% failure, more storage, cheaper. Also Non-volitile meaning info retained after power is off

Question 3

Memory
RAM(Laptops)

Answer 3

Random Access Memory - very fast, volitile which means power is required to maintain the stored info.

Question 4

DC Jack(Laptops)

Answer 4

Where power comes from motherboard

Question 5

Batteries(Laptops)

Answer 5

many now are lithium-ion and lithium polymer now.

Question 6

LCD(Laptops)

Answer 6

Liquid Crystal Display - connects to motherboard via ribbon , light, thin, backlight, bright

Question 7

OLED(Laptops)

Answer 7

Organic light emitted diodes - cheaper than LED, best black levels, light, diode supplies light.

Question 8

LED(Laptops)

Answer 8

Light emitting diode - use less power than lcd and thus more efficient, lcd is better than oled if you want more brightness.

Question 9

Wifi antenna(Laptops)

Answer 9

Located around the screen

Question 10

Inverters

Answer 10

converts direct current(dc) comes from motherboard too AC. to be used by backlight. cause for flickering or dimming

Question 11

Tablets

Answer 11

portable, good battery, no high processing, touch screen.

Question 12

Smartphones

Answer 12

portable, common, good battery, less powerful than a laptop, small screen

Question 13

Wearable Devices

Answer 13

popular, smart watch, small task/ little processing

Question 14

Connection Type

Answer 14

USB, Micro USB, Mini USB, USB C, Lighting Cable

Question 15

Tethering

Answer 15

allows desktop computer or laptop to share the mobile devices internet connection.

Question 16

NFC

Answer 16

t’s a way to send small amounts of data between devices that are located very close to each other.

Question 17

Mobile Hotspot

Answer 17

Let people connect to your phone and use your internet connections via 802.11

Question 18

POP3

Answer 18

Post Office Protocol - store and retrieve emails from a server to the client. Only one device connectivity. original port:110 default port:995. Outlook

Question 19

IMAP

Answer 19

internet message access protocol - store and retrieve your emails from a server to the client. folder creation, multiple devices can retrieve information. yahoo or google. original port: 143 default port: 993

Question 20

S/MIME

Answer 20

Secure/multipurpose internet mail extensions - digitally signed and encrypted messages

Question 21

PRI Update

Answer 21

Product Release Information - contains radio settings, which might be ID numbers, network codes, country codes, and other important information that allows your phone to connect to the right mobile provider’s network.

Question 22

PRL Update

Answer 22

Preferred Roaming List - connects proper cell phone towers while roaming.

Question 23

Baseband Updates

Answer 23

update of the “sub os” that manages wireless comm.

Question 24

Radio Firmware

Answer 24

controls the parameters of your cellular and/or Wi-Fi signal. When problems exist with the device connections, a firmware upgrade often resolves the issue. Not an ‘OS’ update.

Question 25

IMEI

Answer 25

each mobile device, such as phones or tablets, on the planet has to have a unique hardware identifier. that identifier is a number that is unique worldwide and assigned by the manufacturer.

Question 26

IMSI

Answer 26

is assigned to the user or cellular subscriber. This number will be assigned by your service provider and stored on your device’s SIM card, making it portable.

Question 27

VPN

Answer 27

Virtual Private Network - useful in the mobile environment. They provide highly secure connections from unlikely locations, basically anywhere with cellular service. By providing a secure tunnel for your connection, its integrity and security are assured.

Question 28

SMTP

Answer 28

Simple Mail Transfer Protocol - when an email is sent from email to email client, first goes to smtp server then sent off. og port 23 ssl or tls encrytped session: 587 0r 465

Question 29

Magnetic Disk

Answer 29

Moving parts, uses actual mechanical disk and an arm with a read/write head to store data

Question 30

Laptop Memory

Answer 30

SODIMM

Question 31

FTP

Answer 31

File Transfer Protocol - transfers files between systems. port 20(active mode data) and 21(control) example: like filezilla

Question 32

SSH

Answer 32

Secure Shell - remote connections to server or networking devices. more secure replacement for FTP and telnet. port 22(like 2 s's) open

Question 33

Telnet

Answer 33

remote access to other host using the command line interface. unsecure plain text. port 23 but is insecure.

Question 34

DNS

Answer 34

Domain Name System - translates domain names to IP addresses, does it so computer and web server communicates through IP. port: 53

Question 35

HTTP

Answer 35

Hypertext transer protocol - used to surf web, not as secure as https. default port is 80

Question 36

HTTPS

Answer 36

used to surf web, securer than http. default port is 443

Question 37

RDP

Answer 37

Remote Desktop Protocol - used to remote connect to server or desktop. original port 3389

Question 38

NetBios/NetBt

Answer 38

used to talk over LAN, used windows for file/printer share. allows apps to talk over LAM aswell. Port 137-139

Question 39

SMB/CIF

Answer 39

server message - provides access to shared items such as files and printers. port number 445

Question 40

SLP

Answer 40

Service Location protocol - allows comptuers and other devices to find services in a local area network without prio config. port 427

Question 41

AFP

Answer 41

Apple filing protocol - file services for mac computers running macOS. allowing for transfer of files across the network. port 548

Question 42

DHCP

Answer 42

Dynamic Host Configuration - automatically assign IP address to hosts. hosts can be like computers, and printers. small places uses dhcp. port: 67 and 68

Question 43

LDAP

Answer 43

lightweight directory access protocol - access and maintain distributed directories of information. stores username and passwords. port 389 secure port 636. example: microsoft active directory

Question 44

SNMP

Answer 44

Simple network management protocol - standard for managing and monitoring a device on your network. port 161 and port 162

Question 45

Routers

Answer 45

moving data from one network to another network

Question 46

switches

Answer 46

device where all computers connect to it in a wired fashion.

Question 47

access point

Answer 47

devices to connect to wireless network

Question 48

cloud based network controller

Answer 48

software that provides for centralized management, configuration, and monitoring of a computer network.

Question 49

firewall

Answer 49

Any hardware or software that protects a computer from unwanted intrusions.

Question 50

Network interface card

Answer 50

is a network adapter or a physical device that can be added to a computer or a network device that has an open and compatible slot.

Question 51

Repeater

Answer 51

lengthen a signal further that it was originally suppose to go

Question 52

Hub

Answer 52

creates a simple shared phical connection that all computers use to send data

Question 53

cable/dsl modem

Answer 53

device that allows computer to have

Question 54

Hub

Answer 54

creates a simple shared phical connection that all computers use to send data

Question 55

patch panel

Answer 55

device that acts as a terminator point for all the network cables in a the building.