Ch. 1

Question 1

What is Cloud Computing?

Answer 1

Cloud computing is a technology that provides computing services like storage, processing power, and applications over the internet

Question 2

Where is the data actually stored on all these cloud systems?

Answer 2

In data centers, where there is a large number of servers
(Computeres that provide services on behalf of clients)

Question 3

What needs to be fast and fully functional for cloud computing to operate well?

Answer 3

The internet. Swift and dependable network connections play a vital role.

Question 4

What is the purpose of the DNS protocol? What layer does it operate at and what port does it use?

Answer 4

• It turns domain names into IP addresses, it helps computers find and communicate with each other online.
• Operates in the Application layer protocol
• It uses port 53

Question 5

Why are companies moving their data to the cloud?

Answer 5

Cloud computing eliminates the costs of buying hardware and software. Scalability helps companies decide how many servers they should continue to use, and pay for what they need.

Question 6

Why would a company not move their data to the cloud?

Answer 6

There are regulations in place (Hipaa and ferpa)

Question 7

What is the speed of a typical company wired LAN and what typical type of wires do they use?

Answer 7

10 Gbps
Switches and ethernet cables

Question 8

How is Uber/Lyft similar to how the cloud operates?

Answer 8

Pay as you go - it is scalable
The cloud providers sell their computers as a service.

Question 9

What is a VLAN and how are VLANs implemented?

Answer 9

Virtual Local Area Network - subnetting on the switch, the switch has to be managed
- Allows for more security in network segmenting
- Better traffic management
- Minimizes broadcast traffic

Question 10

Relating to jobs what are the effects of the popularity of the cloud?

Answer 10

Less jobs in maintenance and server hardware. The cloud has made jobs more flexible, reliable, efficient, and helped lower costs.

Question 11

How is going to the cloud beneficial for a new startup company?

Answer 11

The company does not have to purchase any hardware or server maintenance. (new server $10,000)

Question 12

What is the difference between private IP address and public IP address?

Answer 12

A private IP address, such as a home or office network, is assigned to a device on a local network and is used to identify the device within that network. On the other hand, a public IP address is assigned to a device directly connected to the internet and is used to identify the device on the internet.

Question 13

What is low latency?

Answer 13

Fast

Question 14

What is high latency?

Answer 14

Slow

Question 15

What is NAT

Answer 15

Network Address Translation
NAT is a process that routers use to translate internal, nonregistered IP addresses to external, registered IP addresses.

Question 16

What is PAT

Answer 16

Port Address Translation
is a type of network address translation (NAT) that maps a network’s private internal IPv4 addresses to a single public IP address

Question 17

NAT/PAT

Answer 17

Converts private to public addresses - This is what allows for the US to still use IPv4 addresses since we conserve the public addresses

Question 18

What is LAN

Answer 18

Local Area Network
a collection of devices connected together in one physical location, such as a building, office, or home

Question 19

What is WAN

Answer 19

It is called a wide-area network because it spans beyond a single building or large campus to include multiple locations spread across a specific geographic area, or even the world

Question 20

Subnetting

Answer 20

Seperating a network into multiple sub-networks