Section 2

Question 1

What is a network?

Answer 1

A network is 2+ computing devices that are connected in order to share data.

Question 2

What are converged networks?

Answer 2

Networks that serve multiple purposes.

Question 3

What is a client?

Answer 3

A client is any device used by an end-user to connect to a network.

Question 4

What is a server?

Answer 4

A server is a device that provides resources to the rest of the network.

Question 5

What is a hub?

Answer 5

A hub is an older technology that connects network devices together.

Question 6

What is a WAP? And what does it stand for?

Answer 6

WAP stands for a Wireless Access Point.

A WAP is a device that allows wireless devices to connect to a wired network.

Question 7

What is a switch?

Answer 7

A switch is a device that connects network devices together to share information and talk to each-other.

Question 8

What is a Router?

Answer 8

A router is a device that connects networks to each other, and forwards traffic to and from a network.

Question 9

What is network media? Give examples

Answer 9

Network media refers to the communication channels used to interconnect nodes on a network.

Examples include copper cable, fibre optic cables, wireless transmission

Question 10

What does WAN stand for?

What is a WAN used for?

Answer 10

WAN stands for a Wide Area Network.

A WAN connects an internal network to an external one. It has worldwide coverage.

Question 11

What is the Client/Server Model?

Advantages / Disadvantages

Answer 11

A resource model that uses a dedicated server to provide access to resources on a network.

Advantages: Easier administration/backup, better scalability, easier management.

Disadvantages: Higher cost, requires dedicated resources.

Question 12

What is the Peer-To-Peer model?

Advantages / Disadvantages

Answer 12

A resource model where peers share resources directly with each other.

Advantages: low cost, no dedicated resources.

Disadvantages: inefficient for larger networks, administration and backup is difficult.

Question 13

What does PAN stand for?

What is a PAN? Give Example

Answer 13

PAN stands for Personal Area Network.

A PAN is a type of network that covers a very small area. (Example Bluetooth)

Question 14

What does LAN stand for?

What is a LAN? (Give example)

Answer 14

LAN stands for a Local Area Network.

A LAN is a network that covers a limited distance (for example a house)

Question 15

What does CAN Stand for?

What is a CAN? (Example)

Answer 15

CAN stands for Campus Area Network.

It is a type of network that connects LANs across a certain area. (Example
University)

Question 16

What does MAN stand for?

What is a MAN? Examples

Answer 16

MAN stands for Metropolitan Area Network.

It is a network that spans the size of a metropolitan area (example City)

Question 17

What does a WAN stand for?

What is a WAN (examples)

Answer 17

WAN stands for a Wide Area Network.

A WAN is a network that has worldwide coverage.

Question 18

What is the Ethernet Standard?

Answer 18

IEEE 802.3

Question 19

What is the Wi-Fi standard?

Answer 19

IEEE 802.11

Question 20

Describe a Bus network topology.

Answer 20

Bud topology uses a single cable, each device taps into the main cable.

Question 21

Describe a Ring network topology.

Answer 21

Ring topology uses a cable running in a circular loop, each device connects to the ring and data travels in a single direction.

Question 22

What is FDDI ring?

Answer 22

For ring topology: uses two counter rotating rings, used for redundancy.

Question 23

Describe Star network topology.

Answer 23

The most popular LAN topology. Devices connect to a single point. If the central device fails the whole network fails.

Question 24

Describe Hub-and-Spoke network Topology.

Answer 24

Similar to star topology but with WAN links instead of LAN connectors. Used for connecting multiple sites.

Question 25

Describe Full-Mesh network topology.

Answer 25

Full-mesh is where every node is interconnected. It is suitable for small networks and allows optimal routing.

Question 26

Describe Partial-Mesh network topology.

Answer 26

It is a hybrid of full-mesh and hub-and-spoke topologies. Allows for optimal routing between some sites. Better refinance than single hub-and-spoke.

Question 27

What is infrastructure mode?

Answer 27

A wireless network topology that uses a Wireless Access Point as the centralised point.

Question 28

What is Ad-Hoc mode?

Answer 28

A wireless decentralised network topology that uses peer-to-peer. It does not require router or access point.

Question 29

Describe Wireless Mesh Topology.

Answer 29

A wireless topology that involves interconnection of different nodes, devices or radios. Creates redundant and reliable connections.

Question 30

What does RFID stand for?

Describe it

Answer 30

Stands for Radio Frequency Identification.

It is a technology that uses electromagnetic fields to read data stored in embedded tags.

Question 31

What does NFC stand for?

What is NFC?

Answer 31

Stands for Near Field Communication.

It is a technology that allows two devices to communicate within a very short range.

Question 32

How does infrared technology work? (Example)

Answer 32

Operates in line of sight. Example TV remote

Question 33

What is Z-Wave?

What is it used for

Answer 33

It is a type of technology that provides short range, low latency data transfer.

Mainly used for home automation (lights off etc)

Question 34

What is ANT+?

Answer 34

It is a technology used for the collection and transfer of sensory data.