Cloud test 1

Question 1

What is the cloud?

Answer 1

On-demand delivery of IT resources over the Internet with pay-as-you-go pricing.

Question 2

What is the value prop of the cloud?

Answer 2

A virtual server in Amazon Web Services

Question 3

SaaS (Software as a Service)

Answer 3

Service)
A form of cloud computing where a firm subscribes to a third-party software and receives a service that is delivered online.

Question 4

IaaS (Infrastructure as a Service)

Answer 4

IaaS (Infrastructure as a Service)
A method that provides network resources such as for storage and allow the client can deploy software and add network components such as firewalls.

Question 5

PaaS (Platform as a Service)

Answer 5

A method that enables infrastructure and tools from the service provider so that the client does not need to manage them.

Question 5

CloudFront

Answer 5

provides a way to distribute content with low latency and high data transfer speeds, delivering content to end-users using a global network of edge locations.

Question 6

Virtual Machine

Answer 6

Computer running on another machine. It’s software that acts like a separate computer, running its own operating system and programs, but it’s all happening inside your actual computer.

Question 6

RDS (Relational Database Service)

Answer 6

Amazon Relational Database Service is a distributed relational database service by Amazon Web Services. It is a web service running “in the cloud” designed to simplify the setup, operation, and scaling of a relational database for use in applications.

Question 7

EC2 (Elastic Cloud Complute)

Answer 7

allows users to rent virtual computers on which to run their own computer applications.

Question 8

Lambda

Answer 8

Serverless platform as a service service. Way for you to run small pieces of code without having to maintain a server

Question 9

API Gateway

Answer 9

a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale.

Question 10

VPC (Virtual Private Cloud)

Answer 10

A private network segment made available to a single cloud consumer on a public cloud.

Question 11

Subnet

Answer 11

a subdivision of a network that is created either to conserve addresses or to support specific network requirements.

Question 12

NACL (Network Access Control List)

Answer 12

an optional layer of security for your VPC that acts as a firewall for controlling traffic in and out of one or more subnets.
Note: act at the subnet level, but security groups act at the instance level.

Question 13

Security Groups

Answer 13

Virtual firewall that controls inbound and outbound traffic to and from the instance.

Question 14

AWS Availability Zone

Answer 14

A collection of one or more data centers. Three or more AZs make up a Region.

Question 15

AWS Region

Answer 15

A physical location in the world where we have multiple availability zones

Question 16

Cloud Native

Answer 16

Applications developed specifically for cloud platforms

Question 17

Cloud Migration

Answer 17

The process of transitioning all or part of a company’s data, applications, and services from on-site premises behind the firewall to the cloud, where the information can be provided over the Internet on an on-demand basis.

Question 18

IP (Internet Protocol) address

Answer 18

Every computer connected to the internet is assigned a unique number known as an internet Protocol (IP) address. Since these numbers are usually assigned in country based blocks, an IP address can often be used to identify the country from which a computer is connecting to the internet. It is not possible to tell the exact address of an individual using the IP address.

Question 19

Public Subnet

Answer 19

a subnet that is accessible from the internet

Question 20

Private Subnet

Answer 20

a subnet that is not accessible from the internet

Question 21

DynamoDB

Answer 21

a fast and flexible NoSQL database service for all applications that need consistent, single-digit millisecond latency at any scale.

Question 22

Serverless Computing

Answer 22

A type of cloud computing where a third-party vendor manages servers, replication, fault-tolerance, computing scalability, and certain aspects of security, freeing software developers to focus on building “Business Solutions” and eliminating the need to spend time and resources managing the technology complexity of much of the underlying “IT Solution.”

Question 23

S3 (Simple Storage Service)

Answer 23

is a web service offered by Amazon Web Services. It provides storage through web services interfaces

Question 24

DNS (Domain Name System)

Answer 24

The Internet’s system for converting alphabetic names into numeric IP addresses.

Question 25

Internet Gateway (IGW)

Answer 25

Allows access to the Internet from Amazon VPC

Question 26

Classless Inter-Domain Routing (CIDR)

Answer 26

A way of allocating IP addresses and routing Internet Protocol packets. It was intended to replace the prior classful IP addressing architecture in an attempt to slow the exhaustion of IPv4 addresses.

Question 27

Port

Answer 27

a communication endpoint that is used to identify specific processes or services on a host device within a network.

Question 28

Well-Architected Framework

Answer 28

1. Operational Excellence
2. Security
3. Reliability
4. Performance Efficiency
5. Cost Optimization