9. DNS & Cloud storage

Question 1

DNS

Answer 1

Domain Name Server

Question 2

What does DNS do?

Answer 2

Resolves names to numbers. Resolves domain names to I.P. addresses.

Question 3

What is ‘https://www.yahoo.com’?

Answer 3

A Uniform Resource Locater (URL)

Question 4

What is a URL?

Answer 4

The address of a particular page on a website

Question 5

A router is connected to…

Answer 5

An Internet Service Provider (ISP)

Question 6

An ISP is connected to…

Answer 6

A Domain Name Server (DNS) and other routers

Question 7

Those routers are also connected to…

Answer 7

Their own LAN’s, other routers & servers

Question 8

What is the cloud?

Answer 8

Servers that can store data and programs that can be accessed over the internet

Question 9

Advantages of the cloud

Answer 9

• Access anytime, anywhere
• Large storage capacity
• Automatic Backup
• Central back up

Question 10

Disadvantages of the cloud

Answer 10

• Data could get intercepted
• Must have access to the internet
• Storing files on network = expensive
• Needs experts to manage cloud storage

Question 11

Purpose of web servers

Answer 11

Hosting websites and dealing with client requests

Question 12

Hosting

Answer 12

When websites are stored on servers dedicated for this purpose