What is Cloud Computing?

Question 1

Name 3 components of a typical server.

Answer 1

Compute, storage and memory

Question 1

What is the function of a router and how does this differ from that of a switch?

Answer 1

A router sends data to the correct holistic network over the internet - e.g. your home. A switch often takes care of the ‘last mile’ of this delivery e.g. from your general home network to your specific device

Question 2

List 5 problems with a ‘traditional’ IT setup.

Answer 2

• Pay for rent for the data centre
• Pay for power, cooling and maintenance
• Adding and replacing hardware takes time and money
• Scaling is limited and difficult to execute
• Need a 24/7 team to deal with the infrastructure
• Calamity in the case of a disaster that wipes out your 1 AZ

Question 3

In a sentence, what is cloud computing?

Answer 3

The on-demand delivery of compute, storage, applications and IT resources over the network.

Question 4

Name 4 advantages of cloud computing.

Answer 4

• PAYG
• Provision exactly the right size and type of computing resources you need
• Access as many resources as you need, almost instantly. Immense scalability
• Simple UI - easy to access servers, databases, storage, etc.

Question 5

What are the 3 types of cloud deployment?

Answer 5

Public cloud, private cloud and hybrid cloud

Question 6

What are the different types of cloud computing offerings? Give an example of a service that is at the level of each type.

Answer 6

• Infrastructure as a service (EC2)
• Platform as a service (Elastic Beanstalk)
• Software as a service (Rekognition)

Question 7

Name the 4 main factors that you should consider when contemplating which region to deploy to.

Answer 7

• Compliance with data governance and legal requirements
• Proximity to customers (reducing latency)
• Available services within a region
• Pricing

Question 8

How many AZs are there within a region?

Answer 8

Minimum 3