AWS Fundamentals

Question 1

What is on-demand access in cloud computing?

Answer 1

Users can provision and utilize resources like virtual machines, storage, and applications as needed, typically paying only for what they use.

This allows for flexibility and responsiveness to user needs.

Question 2

Define resource pooling in the context of cloud computing.

Answer 2

Cloud providers maintain pools of computing resources shared among multiple users, enabling efficient resource utilization and scalability.

This involves resources like servers, storage, and networking equipment.

Question 3

What does elasticity mean in cloud services?

Answer 3

Cloud services are designed to scale up or down dynamically in response to changing demands.

This allows users to accommodate fluctuations in workload without manual intervention.

Question 4

What is the pay-as-you-go pricing model?

Answer 4

Users are billed based on their actual resource usage, offering cost savings compared to traditional IT infrastructure.

This model eliminates the need for large upfront investments in hardware and software.

Question 6

What does IaaS stand for?

Answer 6

Infrastructure as a Service

Question 7

What resources are typically included in the IaaS model?

Answer 7

Virtual machines, storage, and networking components

Question 8

What level of control do users have in the IaaS model?

Answer 8

Users control the operating systems, applications, and development frameworks

Question 9

Which AWS services are included in the IaaS model?

Answer 9

EC2, S3, and VPC

Question 10

What does PaaS stand for?

Answer 10

Platform as a Service

Question 11

What is the primary purpose of PaaS?

Answer 11

To provide a platform for developers to build, deploy, and manage applications

Question 12

Which AWS service is mentioned as part of the PaaS model?

Answer 12

AWS RDS

Question 13

What does SaaS stand for?

Answer 13

Software as a Service

Question 14

How are SaaS applications delivered to users?

Answer 14

Over the internet on a subscription basis

Question 15

What is a key characteristic of SaaS applications?

Answer 15

Users access applications through a web browser or API without installing software locally

Question 16

Name three examples of SaaS offerings.

Answer 16

• Microsoft 365
• Netflix
• Slack

Question 17

What does FaaS stand for?

Answer 17

Function as a Service

Question 18

What is a defining feature of FaaS?

Answer 18

Allows developers to execute code responding to events without provisioning or managing servers

Question 19

How do developers typically write code in FaaS?

Answer 19

As functions triggered by events

Question 20

What types of events can trigger functions in FaaS?

Answer 20

• HTTP requests
• Database changes
• File uploads

Question 21

How does FaaS charge users for its services?

Answer 21

Only for the resources consumed during execution

Question 22

What is the public cloud model?

Answer 22

Cloud services provided by third-party providers over the public internet, available to anyone on a pay-as-you-go or subscription basis.

Question 23

What characterizes a private cloud?

Answer 23

Dedicated to a single organization, hosted on-premises or by a third-party provider, with infrastructure not shared with others.

Question 24

What are the benefits of a private cloud?

Answer 24

Greater control, security, and customization.

Question 25

What is the hybrid cloud model?

Answer 25

Combines elements of both public and private clouds, allowing deployment across multiple environments.

Question 26

What are common use cases for hybrid cloud?

Answer 26

* Disaster recovery * Bursting into the public cloud during peak demand

Question 27

True or False: A public cloud infrastructure is shared with other organizations.

Answer 27

True

Question 28

Fill in the blank: A __________ cloud is dedicated to a single organization.

Answer 28

private

Question 29

Fill in the blank: In a __________ cloud, workloads can be deployed across on-premises data centers, public clouds, and private clouds.

Answer 29

hybrid

Question 30

What is an S3 bucket?

Answer 30

An S3 bucket is a fundamental storage unit in Amazon S3, serving as a container for storing and organizing objects (files or data) within the S3 storage system.

Question 31

What are the four major access tiers for S3 object storage classes?

Answer 31

The four major access tiers are: * Frequent access * Infrequent access * Archive * Intelligent-Tiering

Question 32

What characterizes the S3 Standard class?

Answer 32

The S3 Standard class has the lowest access latency and highest cost, making it ideal for the most frequently accessed objects.

Question 33

What are the storage classes offered by S3 for infrequently accessed objects?

Answer 33

S3 offers: * S3 Standard-IA * S3 Standard One Zone Express IA

Question 34

Name the three storage classes that S3 offers for archival purposes.

Answer 34

The archival storage classes are: * S3 Glacier Flexible Retrieval * S3 Glacier Instant Retrieval * S3 Glacier Deep Archive

Question 35

What is S3 Intelligent-Tiering?

Answer 35

S3 Intelligent-Tiering is a storage class that automates the transition of objects between multiple storage classes based on the access pattern.

Question 36

What is AWS Lambda?

Answer 36

AWS Lambda is a FaaS, serverless computing service that allows running code without provisioning or managing servers.

Question 37

How is an AWS Lambda function triggered?

Answer 37

An AWS Lambda function is invoked by an Event.

Question 38

What is a Virtual Private Cloud (VPC) in AWS?

Answer 38

A VPC is the foundation of AWS infrastructure, providing isolated, secure, and customizable cloud spaces.

Question 39

What does AWS create by default in each Region?

Answer 39

AWS creates a default VPC in each Region, pre-configured with default subnets, route tables, internet gateways, and security settings.

Question 40

What is Amazon Elastic Container Service (ECS)?

Answer 40

ECS is a fully managed container orchestration service that simplifies the deployment and management of containerized applications, allowing running Docker containers at scale.

Question 41

What is Amazon Elastic Kubernetes Service (EKS)?

Answer 41

EKS is a fully managed container orchestration service that simplifies managing Kubernetes clusters on AWS.

Question 42

Where is the control plane for EKS hosted?

Answer 42

The control plane for EKS is hosted in an AWS-managed VPC.

Question 43

True or False: An S3 bucket can only store one type of object.

Answer 43

False

Question 44

Fill in the blank: The S3 storage class for the most frequently accessed objects is called _______.

Answer 44

S3 Standard

Question 45

What is the primary benefit of using AWS Lambda?

Answer 45

It allows running code without provisioning or managing servers.