Computer Networking Flashcards

1
Q

what does computer networking help facilitate?

A

the exchange of information between people and computers

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2
Q

small networks of close-by computers are called what?

A

Local Area Networks (LANs)

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3
Q

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

A

LAN

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4
Q

a series of computers are connected to a single ______ ______

A

ethernet cable

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5
Q

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

A

writes, ethernet

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6
Q

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?

A

the Media Access Control (MAC) adress

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7
Q

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

A

it’s their MAC address in the header

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8
Q

a ____ is any shared transmission media that carries data

A

carrier

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9
Q

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

A

bandwidth

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10
Q

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

A

switch

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11
Q

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

A

packets

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12
Q

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

A

routers, forward, internet protocol

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13
Q

every computer connected to a network gets an _____ ______

A

IP address

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14
Q

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

A

ARPANET

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15
Q

ARPANET was funded by who?

A

advanced research projects agency

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16
Q

what did the ARPANET do?

A

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

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17
Q

ARPANET was a product to the ____ _____

A

cold war

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18
Q

what wre the first 4 nodes of the ARPANET?

A

UCLA, utah, SRI, UCSB

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19
Q

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?

A

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

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20
Q

_________ 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

A

TCP/IP

21
Q

_____ means “an interconnected network of networks”

A

internet

22
Q

what four things does a packet include?

A

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

23
Q

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

A

router

24
Q

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

A

domain name

25
Q

what does DNS stand for?

A

domain name server/system

26
Q

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

A

directory

27
Q

_____ _____ 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

A

packet switching

28
Q

who introduced the world wide web?

A

Tim Berners-Lee

29
Q

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

A

world wide web, hypertext

30
Q

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

A

2000s

31
Q

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

A

social tools encouraging people to share information

32
Q

what was the killer app of the internet?

A

e-mail

33
Q

what was the killer app for the personal computer?

A

spreadsheet

34
Q

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

A

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

35
Q

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

A
36
Q

_____ takes an internet signal and converts it into radio waves

A

wi-fi

37
Q

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

A

3G networks

38
Q

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

A

4G data speeds

39
Q

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

A

different countries choose different communication standards for their mobile phone networks

40
Q

why was bluetooth created?

A

to replace wired connections between devices

41
Q

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

A

VoIP (voice over ip)

42
Q

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.

A

local area network

43
Q

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

A

wide area network

44
Q

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

A

client-server computing

45
Q

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

A

intranet

46
Q

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.

A

extranet

47
Q

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

A

cloud computing

48
Q

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

A

Metcalfe’s Law