Topologies

Question 1

Typology

Answer 1

arrangement of the nodes and connections in a network

Question 2

Bus

Answer 2

• clients, servers, resources connected to one cable (bus)
• Node communicates - data is transmitted down the bus, all devices revive, only intended recipient accepts and processes the message
• terminator prevents message bouncing back

Question 3

Adv and Disadv of Bus

Answer 3

A - Cheap/easy to install

D- If bus fails so does the whole network

• More workstations = worse performance as more data collisions
• All workstations see all the data - security risk

Question 4

Star

Answer 4

Central connection point - hub, switch, router.

Each node is connected too the central point

Question 5

Adv and Disadv of star

Answer 5

Adv

• reliable, one cable or device fails, other devices are unaffected
• high performance, no data collisions

Disadv

• Expensive, lot of cable/extra hardware
• central device fails, network fails

Question 6

Ring

Answer 6

Each device connected to two others.

Message is sent in one directing, received by each device until intended recipient receives it.

Question 7

Adv and Disadv of ring

Answer 7

Adv
- data transfered quickly, data flows in one direction, no data collisions

Disadv

• cable fails/faulty device then whole network fails
• workstations see data not intended for them - security risk