2.1.6 Networks

Question

A Local Area Network (LAN) is...

Answer 1

confined to one site such as an office or a school campus. - connected using equipment owned by the organisation. - maintained by the organisation (or it maybe be outsourced).

Answer 2

confined to one or more sites such as an office or a school campus. - connected using equipment. - maintained by the organisation.

Answer 3

confined to one site such as an office or a school campus. - connected using equipment owned by the organisation. - maintained by one person, usually an IT manager.

Answer 4

often connect only 2 LANs together. - make use of publicly available telecoms facilities. - allow businesses to function from any location.

Answer 5

often connect LANs together. - make use of publicly available telecoms facilities. - allow businesses to function from any location.

Answer 6

often connect only 2 LANs together. - make use of private telecoms facilities. - allow businesses to function from any location.

Answer 7

a physical device that generates and receives suitable electrical signals.

Answer 8

a physical device that receives suitable electrical signals.

Answer 9

a physical device that generates and receives suitable signals.

Answer 10

receives data in the form of packets and forwards them on.

Answer 11

receives data in the form of pulses and forwards them to their destination.

Answer 12

receives data in the form of packets and forwards them to their destination.

Answer 13

one server provides services to many client machines where the users work.

Answer 14

one or more servers provide services to a few client machines where the users work.

Answer 15

one or more servers provide limited services to many client machines where the users work.

Answer 16

one or more servers provide services to many client machines where the users work.

Answer 17

network functions are handled by dedicated machines. - clients can provide for the immediate needs of the user. - this is an efficient, high speed model.

Answer 18

network functions are handled by dedicated machines. - clients can provide for the immediate needs of the user most of the time. - this is sometimes an efficient, high speed model.

Answer 19

network functions are handled by dedicated machines. - clients can provide for the immediate needs of the user. - this is an efficient model.

Answer 20

network functions are handled by a single machine. - clients can provide for the immediate needs of the user. - this is an efficient, high speed model.

Answer 21

all computers are equal. Each computer serves the needs of the user as well as carrying out networking functions.

Answer 22

all computers are equal. Each computer serves the needs of the user.

Answer 23

some computers are equal. Each computer serves the needs of the user as well as carrying out networking functions.

Answer 24

most computers are equal. Each computer serves the needs of the user as well as carrying out limited networking functions.

Answer 25

maintenance is more difficult with a dedicated server. - security is poor. - they tend to be slow because of the amount of clients.

Answer 26

maintenance is more difficult because of the number of clients. - security is poor. - they tend to be slow because of the amount of multi-tasking.

Answer 27

maintenance is more difficult with a dedicated server. - security is poor. - they tend to be slow because of the amount of multi-tasking.

Answer 28

maintenance is more difficult with a dedicated server. - security is non-existent. - they tend to be slow because of the amount of multi-tasking.

Answer 29

Ring, Bus & Wave.

Answer 30

Ring, Line & Star.

Answer 31

Star, Bus & Circle.

Answer 32

Ring, Bus & Star.

Answer 33

a set of rules that covers data communications.

Answer 34

a set of rules that covers how data moves between hosts.

Answer 35

a set of rules that covers the use of data packets.

Answer 36

a set of rules that identifies which packets of data can be sent.

Answer 37

DNS, FTD, HTTP, POP4

Answer 38

DNS, FTP, HTTP, POP3

Answer 39

FTP, HTTP, TLS, DNS

Answer 40

FTP, HTTP, SSL, DNA

Answer 41

Backups, Archives, Failunder, Disaster site, Authentication & Acceptable use policies (AUP).

Answer 42

Backups, Archives, Failover, Disaster recovery, Authentication & Acceptable use policies (AUP).

Answer 43

Backups, Archives, Failover, Disaster recovery, Authentication & Acceptable policies (AP).

Answer 44

Backups, Archives, Failover, Disaster recovery, Syncing & Acceptable use policies (AUP).

Answer 45

he transmission of all sorts of information such as text, graphics, voice, video and computer programs.

Answer 46

retrieving all sorts of information such as text, graphics, voice, video and computer programs.

Answer 47

posting of all sorts of information such as text, graphics, voice, video and computer programs.

Answer 48

the transmission of all sorts of information such as text and graphics only.

Answer 49

one of the facilities that makes use of the internet. It consists of millions of pages written in HTML only.

Answer 50

one of two facilities that makes use of the internet. It consists of billions of pages written in HTML or its derivatives.

Answer 51

the only facilities that makes use of the internet. It consists of billions of pages written in HTML.

Answer 52

one of the facilities that makes use of the internet. It consists of billions of pages written in HTML.

Answer 53

Title/943656934594390

Answer 54

http://www.hoddereducation.co.uk/

Answer 55

OCR_Computing_for_GCSE

Answer 56

Title/943656934594390/

Answer 57

http://www.hoddereducation.co.uk/

Answer 58

OCR_Computing_for_GCSE

Answer 59

http://www.hoddereducation.co.uk

Answer 60

Title/943656934594390/

Answer 61

OCR_Computing_for_GCSE

Answer 62

store bit-mapped images using lossless compression.

Answer 63

store still images using lossy compression.

Answer 64

represent digital audio using lossy compression.

Answer 65

represent documents in the same way no matter what software is being used to display them.

Answer 66

store bit-mapped images using lossless compression.

Answer 67

represent digital audio using lossy compression.

Answer 68

i) save storage space on media. ii) reduce transmission times on a network.

Answer 69

i) save storage space. ii) reduce transmission times on the internet.

Answer 70

i) save storage space online. ii) reduce file sizes.

Answer 71

files are compressed by removing some data that is less essential for the purpose.

Answer 72

files are compressed by removing half the data of a selected file.

Answer 73

files are compressed with no loss of essential data.

Answer 74

files are compressed with severe loss of essential data.

Answer 75

files are compressed with no loss of any data.

Answer 76

files are compressed with no loss of essential data.

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2.1.6 Networks

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