Computer Networking

Question 1

what does computer networking help facilitate?

Answer 1

the exchange of information between people and computers

Question 2

small networks of close-by computers are called what?

Answer 2

Local Area Networks (LANs)

Question 3

a ___ can be either two computers in a small room or computers in a university

Answer 3

LAN

Question 4

a series of computers are connected to a single ______ ______

Answer 4

ethernet cable

Question 5

when a computer wants to transfer data to another computer, it _____ the data as an electrical onto the _____ cable

Answer 5

writes, ethernet

Question 6

since the ethernet cable is shares, all computers get the data transmitted, but don’t know who it’s for. What do they each posses that helps figure out who the data is for?

Answer 6

the Media Access Control (MAC) adress

Question 7

Because of MAC addresses, all computers receive the data but only let is pass if…

Answer 7

it’s their MAC address in the header

Question 8

a ____ is any shared transmission media that carries data

Answer 8

carrier

Question 9

the rate at which a carrier can transmit data is called ______

Answer 9

bandwidth

Question 10

a _____ is a network device that connects multiple hosts together and forwards packets based on their destination within the local network

Answer 10

switch

Question 11

_____ are basically a bunch of small pieces of data that contain a Destination Address on the network

Answer 11

packets

Question 12

A Destination address is used so that _____ can know where to ______ them. This is what ______ _____ is

Answer 12

routers, forward, internet protocol

Question 13

every computer connected to a network gets an _____ ______

Answer 13

IP address

Question 14

the world’s first packet-switched network and the ancestor to the modern internet was ______

Answer 14

ARPANET

Question 15

ARPANET was funded by who?

Answer 15

advanced research projects agency

Question 16

what did the ARPANET do?

Answer 16

it was the first integrated computer network, it allowed devices on different networks to connect with each other

Question 17

ARPANET was a product to the ____ _____

Answer 17

cold war

Question 18

what wre the first 4 nodes of the ARPANET?

Answer 18

UCLA, utah, SRI, UCSB

Question 19

after ARPANET, other networks emerged where different organizations were connected to different networks and were running different protocols , making it hard for them to communicate. What was created to fix this?

Answer 19

Transmission Control Protocol (TCP)/ Internet Protocol (IP)

Question 20

_________ was designed to allow networks running on different protocols to have an intermediary protocol that would allow them to communicate. It is now the standard protocol

Answer 20

TCP/IP

Question 21

_____ means “an interconnected network of networks”

Answer 21

internet

Question 22

what four things does a packet include?

Answer 22

sender’s address, destination address, sequence, and a piece of the overall message

Question 23

a _____ receives & analyzes packets and routes them toward their destination. they’re also used to connect one network to another network

Answer 23

router

Question 24

a ____ ___ is a human-friendly name that’s convenient for remembering a website

Answer 24

domain name

Question 25

what does DNS stand for?

Answer 25

domain name server/system

Question 26

DNS acts as the _____ of websites on the internet. When a request to access a host with a domain name is given, a DNS server is queries and returns the IP address of the host requested, which allows for proper routing

Answer 26

directory

Question 27

_____ _____ is when packets are sent on different routes to the destination. They might get there out of order, but that's okay because each packet has information about what order they should be in

Answer 27

packet switching

Question 28

who introduced the world wide web?

Answer 28

Tim Berners-Lee

Question 29

the _____ _____ ____ provided an easy way to navigate the internet through the use of ______.

Answer 29

world wide web, hypertext

Question 30

Web 2.0 was created in the early _____ with changes about how the internet was being used

Answer 30

2000s

Question 31

which key characteristic of web 2.0 made a major change in society? allowing news outlets to be reported quicker online through new apps

Answer 31

social tools encouraging people to share information

Question 32

what was the killer app of the internet?

Answer 32

e-mail

Question 33

what was the killer app for the personal computer?

Answer 33

spreadsheet

Question 34

t/f: the internet and the WWW are the same thing

Answer 34

false, The internet is an interconnected network or networks while the WWW is just one part of the internet

Question 35

highspeed access, also known as _____, is important because it affects how the internet is used.

Question 36

_____ takes an internet signal and converts it into radio waves

Answer 36

wi-fi

Question 37

what creation allowed smartphones and other cellular devices to access data from the internet?

Answer 37

3G networks

Question 38

what creation allowed more powerful smartphones to get the same speeds of 3G from their home connection?

Answer 38

4G data speeds

Question 39

why is it that our phones don't work abroad?

Answer 39

different countries choose different communication standards for their mobile phone networks

Question 40

why was bluetooth created?

Answer 40

to replace wired connections between devices

Question 41

_____ allows analog signals to be converted to digital signals, then transmitted on a network. This allows voice communication over the internet.

Answer 41

VoIP (voice over ip)

Question 42

a ___ ___ ____ allowed computers to connect to each other and to peripherals. it's a local network that operates in the same buildin g or campus.

Answer 42

local area network

Question 43

a ___ ___ ____ provides connectivity over a wider area such as an organization's locations in different cities or states

Answer 43

wide area network

Question 44

______ _____ ____ provides stand alone devices like PCs and printers to work together

Answer 44

client-server computing

Question 45

an _____ provides web-based resources for the users within an organization that aren't accessible outside the company.

Answer 45

intranet

Question 46

an _____ is a part of a company's network that can be made available to those outside the company securely. they can allow customers to log in and place orders.

Answer 46

extranet

Question 47

______ _____ allows companies or individuals to contract data storage on devices somewhere on the internet. applications can be "rented" as needed

Answer 47

cloud computing

Question 48

______ _____ states that the value of a telecommunications network is proportional to the squae of the number of connected users of a system.

Answer 48

Metcalfe's Law