Weaknesses 1.1 - 1.6

Question 1

LAN

Answer 1

Local Area Network - Is computers which are connected together over a small geographical area.
All the hardware for the LAN is owned by the organisation that uses it.
Examples: School,Home Network

Question 2

WAN

Answer 2

Wide Area Network - Computers that are connected together over a large geographical area.
A network that connects LANs.
Organisations hire infrastructure from telecommunications companies
Example: The Internet, Satellite Connections

Question 3

NIC

Answer 3

Network Interface Card - Is an internal piece of hardware that allows a device to connect to a network.

Question 4

Coaxial Cable

Answer 4

Coaxial cable - Is a transmission media made of a single copper wire surrounded by an insulation and a metallic mesh which provides shielding which minimise interference.

Question 5

Fibre Optic Cable

Answer 5

These cables transmit data as light.
They are high performance cables and therefore expensive.
They can transmit data over very large distances.

Question 6

Router

Answer 6

Connects different networks and directs data packets to there correct destination

Question 7

WAP

Answer 7

Wireless Access Point - A piece of hardware that allows wireless devices to connect to a network

Question 8

Switch

Answer 8

Receives data packets and then proceeds to forward the data packets directly to there destination

Question 9

Transmission Media

Answer 9

The communication channel over which data is transferred
Examples:
Ethernet cables
Fibre Optic cables
Coaxial cables

Question 10

Factors that affect the performance of the network

Answer 10

The bandwidth available
Number of data collisions
Number of users on a network
Interference
Signal strength/Distance to Travel
Amount of data to transfer
Applications being used
CPU performance

Question 11

Details of client server

Answer 11

Clients are completely dependent on the server to provide and manage information
The server controls network security and backups
All clients make requests to the server for services/files

Question 12

Advantages of Client Server

Answer 12

Advantages:
Controlled centrally - Easily backed up data and update software
Hardware, software and resources can be shared
Improved scalability - Clients can be easily added to the central server

Question 13

Disadvantages of Client Server

Answer 13

Disadvantages:
Large Amounts of Traffic congestion - Network slows down
Fault occurs with server - Whole network fails
Technicians required to manage and maintain the network
Malware can spread quickly

Question 14

Details of Peer - Peer network

Answer 14

Data is shared directly between systems without requiring a central server
Optimal for sharing files
No additional hardware required

Question 15

Advantages of Peer - Peer Network

Answer 15

No server required
Not dependent on a server
Quickly sharing files between systems

Question 16

Disadvantages of Peer - Peer Network

Answer 16

No central device to manage security or backups
Performance decreases - Due to more devices being connected