Connectivity Methods

Question 1

What Is A LAN?

Answer 1

A local area network (LAN) is a network that connects computers and other devices in a relatively small area, typically a single building or a group of buildings.

Question 2

3 Advantages Of A LAN?

Answer 2

1. you can share peripherals like laser printers
2. a file server can be used to store and share documents and files centrally
3. emails can be sent between computers

Question 3

3 Disadvantages Of LAN?

Answer 3

1. If a virus gets on a LAN network then it will spread quickly
2. If The Server Fails then no one can access any files or folders
3. Building A LAN is expensive due to all computers needing cables or wireless technology

Question 4

What is Ethernet?

Answer 4

A system for connecting a number of computer systems to form a local area network

Question 5

3 Advantages Of Ethernet?

Answer 5

1. Very Reliable does not fail often
2. Fast Transfer Speeds
3. Reduces Data Collisions

Question 6

3 Disadvantages Of Ethernet?

Answer 6

1. No Way To Prioritise Traffic
2. Limited Cable Length
3. 10MBPS for base version of Ethernet

Question 7

What Is A Token Ring?

Answer 7

All Devices Connected in a ring

Question 8

3 Advantages Of Ethernet?

Answer 8

1. Excellent Performance under high load
2. Easy Detection and Correction of cable errors
3. TP (Twisted Pair) Cable Is Cheap

Question 9

3 Disadvantages of Ethernet?

Answer 9

1. Low Load = Delay in speed
2. Difficult to configure
3. If the cable breaks the whole network goes down

Question 10

What Does WAN Stand For?

Answer 10

Wide Area Network

Question 11

3 Advantages Of WAN?

Answer 11

1. Everyone on the network can access the same data = everyone’s data is updated
2. Anyone can connect no matter where they are
3. Good for big business and schools because data can be remotely accessed anywhere.

Question 12

3 Disadvantages Of WAN?

Answer 12

1. WAN is expensive to setup
2. WAN’s are not easy to use
3. Low Bandwidth = Low Speeds

Question 13

What Is ADSL?

Answer 13

Type of DSL broadband communications technology used for connecting to the Internet.

Question 14

3 Advantages Of ADSL?

Answer 14

1. Most Common Fast Type of connection to the internet
2. You can talk on the phone whilst using the internet
3. Speeds are much higher than Dial Up

Question 15

2 Disadvantages Of ADSL

Answer 15

1. A DSL connection works better the closer you are to the telephone
2. This service is not available in all locations.

Question 16

Leased Line What Is It?

Answer 16

Leased Line Is a dedicated link. Such as between offices for a big business.

Question 17

Leased Line 2 Advantages?

Answer 17

1. It’s costly – but only carries your data so is guaranteed to give ultrafast speeds
2. Larger Files get really high bandwidth

Question 18

Leased Line 2 Advantages?

Answer 18

1. Costly

2. Installation can take weeks or even months

Question 19

Definition of a ISDN?

Answer 19

allow you to connect to the Internet and transmit digital data over ordinary telephone copper wire as well as other media.

Question 20

ISDN 2 Advantages?

Answer 20

1. high data rate because of digital scheme which is 56 kbps.
2. SDN takes only 2 seconds to launch a connection

Question 21

ISDN 2 Disadvantages?

Answer 21

1. ISDN is much more expensive than its successor being ADSL

2. More Expensive than DSL and cable

Question 22

What Is WLAN?

Answer 22

devices on a WLAN communicate via Wi-Fi.

Question 23

What Is A MAN?

Answer 23

covers town or city (bigger than LAN, smaller than WAN).

Question 24

3 Advantage Of MAN?

Answer 24

Provides a larger and more controllable computer network,

requires fewer resources compared to LAN

cost effective way of sharing common resources.

Question 25

3 Disadvantage MAN?

Answer 25

Difficult to manage the network once it becomes too large difficult to make the system secure to keep hackers out requires more cables for connection.

Question 26

What Is PTSN?

Answer 26

PTSN (world's connection of interconnected phone networks) and Cellular (built from small areas called ‘cells’ around base stations.

Question 27

3 Advantages of PTSN

Answer 27

It is established technology it is reliable it requires no extra equipment.

Question 28

3 Disadvantages of PTSN

Answer 28

Requires a dedicated line for making and taking a call call charges are higher than VoIP you need to pay maintenance fees every month.

Question 29

What are Sat Phones?

Answer 29

Satphones or satellite phones (connect to orbiting satellites not cellular networks and are popular for voice calling in remote locations.) Satphones (also provide data services such as GPS and internet access.)

Question 30

3 Advantages Of Sat Phones?

Answer 30

Signal will be a lot stronger | phones always tell you if you are receiving a call.

Question 31

3 Disadvantages Of Sat Phones?

Answer 31

Maintenance costs are high only work when a direct line of sight exists with the sky difficult to get coverage near a tall building.