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Question 1

Are arrays dynamic or static

Answer 1

Static

Question 2

Extra thing OS do

Answer 2

Input output management

Question 3

Cisc

Answer 3

Large devices pcs

Question 4

Risc

Answer 4

Mobile phones

Question 5

What does router use

Answer 5

IP adress

Question 6

static v immutable

Answer 6

static, size cannot be changed whereas immutable size and elements cant be changed

Question 7

PC

Answer 7

Next instruction

Question 8

Another advatnage of packet switching

Answer 8

Harder to intercept them all as individual path

Question 9

DNS

Question 10

Advantages of packet switching

Answer 10

It makes very efficient use of the network - no tied-up lines which is particularly good for internet traffic which is bursty (ie lots and then nothing)
It can easily get around broken bits of the network. The node will simply send the packet a different route.
Transmission is safer from interception since it is impossible to intercept all packets as they use different routes

Question 11

Disadvantages of packet switching

Answer 11

The time it takes to put back the data package changes each time, which can be a problem for time-critical information such as an emergency signal. The fancy name is for this is ‘latency’.
Not very good for small data packages - packet header becomes a considerable overhead.