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Computer science > networks > Flashcards

networks Flashcards

1
Q

what is WAN

A

wide area network

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2
Q

what is LAN

A

local area network

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3
Q

what is file servers

A

hold and maintain user files

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4
Q

what is applications servers

A

allow programs to be run over a network

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5
Q

what is web servers

A

hold and share web pages

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6
Q

what is print servers

A

manage printing across a network

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7
Q

what is print servers

A

handle emails between users

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8
Q

what is client-server networks

A

This type of network separates computers into servers and clients.

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9
Q

what is a peer to peer network

A

Instead, each computer is known as a peer. Peers store their own files, which can be accessed by other peers on the network.

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10
Q

what is 1Mbps in bits

A

1,000,000 bits per second

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11
Q

what is 1Gbps in bits

A

1,000,000,000 bits per second

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12
Q

how to calculate how long it would take to transmit a file

A

time = size of file (in bits) / network speed (in bits)

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13
Q

what does the b mean in KB

A

bits

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14
Q

how many bits in a bytes

A

8

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15
Q

what is ethernet

A

used in wired LANs. Ethernet covers a wide range of standards from types of cable to data transmission speed.

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16
Q

what is Wi-Fi

A

used in wireless LANs.

17
Q

what is TCP/IP

A

enables communication over the internet/address

18
Q

what is HTTP and HTTPS

A

governs communication between a web server and a client which includes secure encryption

19
Q

what does HTTP and HTTPS stand for

A

Hypertext Transfer Protocol

20
Q

what is FTP

A

governs the transmission of files across a network and the internet.

21
Q

what is SMTP

A

governs the sending of email over a network to a mail server.

22
Q

what is POP3 and IMAP

A

govern retrieving emails from email servers.

23
Q

what is a node

A

Any device connected to a network

24
Q

what is the bus network topology

A

In a bus network all the nodes are joined to one

cable

25
Q

what is the ring network topology

A

In a ring topology network each node is connected to two other devices

26
Q

what is the star network topology

A

In a star topology all nodes indirectly connect to each other through one or more switches or hubs

27
Q

what is the mesh network topology

A

In a mesh topology there is no central connection point. Instead, each node is connected to at least one other node and usually to more than one.

28
Q

what is a domain name

A

pearson.co.uk

Computer science (5 decks)

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