class 5 power point

which number system, do humans normally use for counting?

a. binary

b. hexadecimal

c. decimal

d. octal

decimal

how do computers process, transmit, and store data

a. using letters and symbols

b. using numbers 0-9

c. using electrical words

d. using 1s and 0s

using 1s and 0s

what number system uses only 1s and 0s

a. decimal

b. binary

c. hexadecimal

d. octal

binary

what is a single binary digit called

a. byte

b. nibble

c. bit

d. word

bit

why does storing or transmitting data require many 1s and 0s

a. computers can only use letters

b. data is represented using bits

c. data is stored as images only

d. computers use decimal numbers

data is represented using bits

how many bits are in one byte

a. 4

b. 6

c. 8

d. 16

8

how much storage is typically required to store one character on a computer

a. 1 bit

b. 4 bits

c. 1 byte

d. 1 kilobyte

1 byte

how many bytes are in one kilobyte (KB)

a. 100 bytes

b. 512 bytes

c. 1024 bytes

d. 2048 bytes

1024 bytes

which type of file is most commonly measure in kilobytes

a. video files

b. operating systems

c. spreadsheets and documents

d. hard drives

spreadsheets and documents

how many KB equal one megabyte (MB)

a. 1000 KB

b. 512 KB

c. 1024 KB

d. 2048 KB

1024 KB

which file type is commonly measured in megabytes (MB)

a. text documents

b. audio files such as MP3

c. thumb drives

d. hard disk drives

audio files such as MP3

how many MB are in one gigabyte (GB)

a. 512 MB

b. 1000 MB

c. 1024 MB

d. 2048

1024 MB

which storage device is typically measured in gigabytes (GB)

a. CPU cache

b. RAM registers

c. thumb drives

d. textfiles

thumb drives

how many GB are in one terabyte (TB)

a. 1000 GB

b. 512 GB

c. 1024 GB

d. 2048 GB

1024 GB

which devices are most commonly measured in TB’s?

a. USB flash drives

b. audio files

c. hard disk and solid state drives

d. spreadsheets

hard disk and solid state drives

which of these numbers are hexadecimal

a. 6G

B. R50

C. 8B

D. 50h

8B

how can you determine if a number is a hexadecimal

a. it only uses numbers 0-7

b. it only uses 1s and 0s

c. it uses digits 0-9 and letter A-F

d. it always ends with the letter H

it uses digits 0-9 and letters A-F

what is the primary purpose of network media

a. to store user data

b. to protect computers form viruses

c. to provide pathways that connect computers

d. to control user permissions

to provide pathways that connect computers

what best describes a network interface

a. a cable that carries data

b. a set of communication rules

c. the point where two different systems interact

d. a storage location for network files

the point where two different systems interact

what is the role of network protocols

a. they physically connect devices

b. they store transmitted data

c. they act as a common language for communication

d. they supply power to network devices

they act as a common language for communication

what type of address is a MAC address

a. logical address

b. physical address

c. internet address

d. temporary address

physical address

why is a MAC address called a burnt-in address

a. it changes every time you connect

b. it is assigned by DHCP

c. it is built into the network device

d. it is created by the user

it is built into the network device

what type of address is an IP (internet protocol) address

a. physical

b. burnt in

c. logical

d. hardware

logical

which IV version is older format and still commonly used today

a. IPv8

b. IPv6

c. IPv5

d. IPv4

IPv4

what does DHCP do automatically

a. assigns MAC addresses

b. assigns IP addresses

c. encrypts traffic

d. blocks websites

assigns IP addresses

what does static configuration mean

a. the IP address changes automatically

b. the device assigns is own address randomly

c. the IP address is manually assigned

d. the network is disconnected

the ip address is manually assigned

in a client-server network, what is the clients role?

a. the client stores all data for network

b. the client requests info

c. the client manages all other computers

d. the client assigns IP addresses

the client requests info

what best describes a peer to peer (P2P) network

a. one main server controls all devices

b. devices only send requests

c. each device can act as both a client and a server

d. only one device shares files

each device can act as both a client and a server

on a LAN how are devices identified

a. all devices share the same name

d. devices do not need names

c. each device has a unique name or identifier

d. only servers have identifiers

each device has a unique name or identifier

how do desktop computers usually connect to a LAN

a. using Bluetooth

b. using Wi-Fi only

c. directly to the router using cables

d. going through the internet

directly to the router using cables

how do mobile devices usually connect to a LAN

a. using cables only

b. using wifi

c. using satellite connections

d. using USB drives

using wifi

what is the router used for in a LAN

a. it stores all files

b. it connects devices on the local network

c. it replaces desktop computers

d. it assigns usernames only

it connects dives on the local network

what does WAN stand for

a. wireless access network

b. wide area network

c. world access network

d. wired area network

wide area network

what does a WAN do

a. connects devices in one room

b. connects devices in one building

c. extends over a large geographical area

d. only connects mobile phones

extends over a large geographic area

a WAN is often described as what type of connection

a. temp. connection

b. wireless only connection

c. leased connection

d. Bluetooth connection

leased connection

which statement best describes the internet

a. a single local network

b. a private home network

c. a network that links millions of smaller networks

d. a wireless router

a network that links millions of smaller networks

what is the main purpose of a VPN

a. speed up the internet

b. block all websites

c. create a secure connection between your device and the internet

d. replace your router

create a secure connection between your device and the internet

what does a modem do

a. connects multiple devices together

b. translates signals form an ISP to your devices

c. blocks unwanted traffic

d. assigns IP addresses

translates signals from an ISP to your devices

what is the main job of a router

a. translate internet signals

b. monitor network traffic

c. connect different networks together

d. store files

connect different networks together

what does a switch do on a network

a. connects to multiple devices on the same network

b. connects to the internet

c. encrypts data

d. assigns MAC addresses

connects to multiple devices on the same network

what is he job of a firewall

a. speed up the internet

b. store network data

c. monitor and control network traffic

d. connect devices with cables

monitor and control network traffic

what does twisted pair cabling use

a. single straight wires

b. wireless signals

c. pairs of wires twisted together

d. fiber strands

pairs of wires twisted together

why are the wires in twisted pair cabling twisted together

a. to make the cable stronger

b. to increase cable strength

c. to minimize crosstalk and interface

d. to add power

to minimize crosstalk and interface

what are 568A and 568B

a. types of routers

b. wireless standards

c. wiring standards for network cables

d. internet speeds

wiring standards for network cables

why are wiring standards like 568A and 568B important

a. they control internet speed

b. they ensure cables are wired consistently

c. they encrypt network traffic

d. they replace connectors

they ensure cables are wired consistently

what is a RJ45

a. HDMI cable

b. ethernet (network) cable

c. power cable

d. USB cable

ethernet (network) cable

what does WAP stand for

a. wireless access protocol

b. wired access point

c. wireless access point

d. wide area port

wireless access point

what is the main job of a wireless access point (WAP)

a. connects wired devices to each other

b. allow wireless devices to connect to a wired network

c. assign IP addresses

d. block internet traffic

allow wireless devices to connect to a wired network

what does WLAN stand for

a. wide local area network

b. wireless local area network

c. wired local access network

d. wireless long area network

wireless local area network

what does WLAN use to connect devices

a. ethernet cables

b. fiber optic cables

c. wireless signals

d. USB cables

wireless signals

a WLAN is best described as connecting devices in what type of area

a. across the entire internet

b. across multiple countries

c. within a limited area, like a home or office

d. only one device

within a limited area, like a home or office

what does modulation mean in wireless networking

a. blocking wireless signals

b. data riding on a carrier signal

c. encrypting data

d. increasing internet speed

(modulation - adjust wifi waves so it can carry messages)

data riding on a carrier signal in order for it to carry and deliver a message

what do 802.11 standards mainly ensure

a. faster internet billing

b. compatibility between wireless devices

c. stronger passwords

d. physical cable connections

compatibility between wireless devices

(802.11 - they make all Wi-Fi devices follow the same rules)

what is the purpose of wireless security

a. increase signal range

b. encrypt data while it is being sent

c. replaces wired networks

d. assign IP addresses

encrypt data while it is being sent

what does latency describe

a. signal strength

b. lag time or delay

c. internet speed plan

d. download size

lag time or delay

what can cause wireless interference

a. only cables

b. other signals and physical objects

c. strong passwords

d. routers only

other signals and physical objects

what does attenuation mean in wireless networking

a. signal getting stronger over distance

b. signal loss as distance increases

c. faster data speeds

d. better encryption

signal loss as distance increases

what is a key advantage of 2.4 GHz wireless

a. faster speeds

b. longer range and better through walls

c. less crowded

d. shorter distance

longer range and better through walls

what is a key advantage of 5 GHz wireless

a. longer range

b. better through walls

c. higher data speeds and less crowded

d. works without a router

higher data speeds and less crowded

what does hertz (Hz) measure

a. internet speed

b. number of devices

c. cycles per second of a signal

d. signal strength

cycles per second of a signal

what does virtualization allow you to do

a. replaces hardware

b. run computers inside computers

c. increase internet speed

d. removes operating systems

run computers inside computers

what is required to use virtualization

a. only a network cable

b. a computer and a hypervisor

c. a router

d. a firewall

a computer and a hypervisor

what does a hypervisor do

a. encrypts data

b. manages hardware for virtual machines

c. routers internet traffic

d. assigns IP addresses

manages hardware for virtual machines

what is a type 1 hypervisor

a. runs on top of a host OS

b. runs directly on computer hardware

c. only used for gaming

d. used only for containers

runs directly on computer hardware

what is a type 2 hypervisor

a. runs directly on hardware

b. runs without an OS

c. runs on top of a host operating system

d. is harware-based

runs on top of a host operating system

what is a guest operating system

a. the main physical OS

b. an OS running inside a virtual machine

c. a network OS

d. firmware

an OS running inside a virtual machine

what is container virtualization mainly used for

a. running only one app

b. portable software packages that run multiple apps

c. hardware replacement

d. network security

portable software packages that run multiple apps

what is a virtual server

a. a physical server only

b. a software based server

c. a router

d. a firewall

a software based server

what is a benefit of virtual servers

a. one server per building

b. multiple servers on one physical machine

c. no operating system needed

d. no hardware required

multiple servers on one physical machine

which counting system uses 1s and 0s

a. decimal

b. hexadecimal

c. binary

d. octal

binary

what are the two main network types

a. LAN and VPN

b. WAN and WLAN

c. LAN and WAN

d. PAN and MAN

LAN and WAN

what does virtualization allow

a. one OS per computer only

b. multiple systems on one physical machine

c. faster Wifi

d. better cables

multiple systems on one physical machine