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Computing 1 > network protocols > Flashcards

network protocols Flashcards

1
Q

what is a protocol

A

a set of rules to allow for communication

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2
Q

what is a standard

A

a set of agreed requirements for hardware and software

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3
Q

what are the 2 versions of IP

A

IPv4
IPv6

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4
Q

what does TCP stand for

A

transmission control protocol

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5
Q

what is the purpose of TCP

A

sets the rules of how devices connect to a network and controls how data is split into packets and checking that all packets have been received

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6
Q

give 5 protocols

A

HTTP(S)
FTP
IP
POP
IMAP
SMTP

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7
Q

what HTTP(S)

A

Hypertext transfer protocol (secure) - used to access websites securely

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8
Q

what is FTP

A

file transfer protocol - used to access, edit and move files between devices on a network

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9
Q

what is POP

A

post office protocol - used to retrieve emails from the server, by downloading them and deleting them from the server

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10
Q

what is IMAP

A

internet message access protocol - used to retrieve emails from a server, the server will keep it on it so you can access it from any device

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11
Q

what is SMTP

A

simple mail transfer protocol - used to send emails

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12
Q

what is a layer

A

a group of protocols which have similar function

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13
Q

give the names and purposes of each layer

A

application layer - turns data into websites and other application
transport - splitting data into packets and sending it correctly
network layer - making connections between networks and directing it
link - passed data over a physical network

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14
Q

what are the protocols in each layer

A

application - HTTP(S), FTP, SMTP
transport - TCP
Network - IP
Link - ethernet

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15
Q

what are 3 advantages of layers

A
  • breaks network communication into manageable pieces
  • self-contained so a layer can be changed without affecting others
  • have standards for each layer so it forces companies to make compatible hardware and software
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16
Q

what is WWW

A

The World Wide Web is a collection of websites that are on the internet

17
Q

what is the purpose of a DNS

A

translates a website domain name into an IP address

18
Q

what is cloud storage

A

storing data remotely on a server using the internet

19
Q

what are 5 pros of using the cloud

A
  • users can access files from anywhere
  • easy to increase storage
  • no need to buy expensive hardware
  • no need to pay IT staff to manage hardware
  • automated backups
20
Q

what are the 4 cons of cloud software

A
  • an internet connection is needed
  • dependent on the host for security
  • data stored on the cloud is vulnerable to hackers
  • subscription fees may become expensive

Computing 1 (8 decks)

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