AWS Infrastructure as a Service

Questions and Answers

How long does it take to boot an Amazon EBS-Backed instance?

Less than 5 minutes

Less than 1 minute (correct)

Around 10 minutes

More than 15 minutes

What happens to the root volume when an Amazon EBS-Backed instance terminates?

It is transferred to another instance

It is deleted (correct)

It is preserved

It is moved to S3

What is charged in an Amazon EBS-Backed instance?

Instance usage, Amazon EBS volume usage, and storing your AMI as an Amazon EBS snapshot (correct)

Only Amazon EBS volume usage

Only storing your AMI in S3

Only instance usage

What is the characteristic of data persistence in an Amazon Instance Store-Backed instance?

Data persists only during the life of the instance Signup and view all the answers

What can be modified while the instance is stopped in an Amazon EBS-Backed instance?

Modifications can be changed while the instance is stopped Signup and view all the answers

What is the boot time for an Amazon Instance Store-Backed instance?

Less than 5 minutes Signup and view all the answers

What type of pricing models are available for Amazon Machine Instances?

On-Demand, reserved, and spot market Signup and view all the answers

Which company acquired ARM in 2016?

SoftBank Signup and view all the answers

What is the fabrication process used for the Apple M3 SoC?

3 nm process Signup and view all the answers

What is the maximum TDP of the Apple M3 Max?

78 W Signup and view all the answers

What is WLAN commonly marketed as?

Wi-Fi Signup and view all the answers

What is the primary function of access points in a WLAN?

To act as routers Signup and view all the answers

What type of processor designs does ARM develop?

RISC-based Signup and view all the answers

What is the name of the technology used in the Apple M3 SoC for efficient processing?

ARM Big Little Signup and view all the answers

What happens to the host computer when an Amazon EBS-backed instance is rebooted?

The instance stays on the same host computer. Signup and view all the answers

What happens to the private IPv4 address when an Amazon EBS-backed instance is stopped and then started?

The private IPv4 address remains the same. Signup and view all the answers

What happens to the public IPv4 address when an Amazon EBS-backed instance is stopped and then started?

The public IPv4 address changes. Signup and view all the answers

What happens to the instance when it is hibernated?

The instance is paused and its context is saved. Signup and view all the answers

What happens to the host computer when an Amazon EBS-backed instance is terminated?

None of the above. Signup and view all the answers

What happens to the private and public IPv4 addresses when an Amazon EBS-backed instance is terminated?

Both addresses are deleted. Signup and view all the answers

When was AWS launched as a service model?

13.03.2006 Signup and view all the answers

How many current regions does AWS operate?

33 Signup and view all the answers

What is an Availability Zone in AWS?

A data center with no common points of failure Signup and view all the answers

What is the main purpose of having multiple Availability Zones?

To provide infrastructural redundancy Signup and view all the answers

What must users consider when allocating resources in AWS?

Legal requirements and latency access for customers Signup and view all the answers

What distinguishes the communication between zones compared to within a zone?

Communication within a zone is free Signup and view all the answers

Which of the following statements about AWS regions is true?

Regions provide fault tolerance and stability Signup and view all the answers

Which account type has restrictions on region availability?

AWS GovCloud (US) Signup and view all the answers

What is a bucket in Amazon S3?

A storage location that collects objects. Signup and view all the answers

Which of the following statements about Amazon S3 is true?

S3 is ideal for short-term or long-term backup. Signup and view all the answers

What is the purpose of Elastic Block Storage (EBS) in Amazon EC2?

To ensure persistent storage that remains after an instance shuts down. Signup and view all the answers

What might you use if you require a static IP address for an Amazon EC2 instance?

Elastic IP address. Signup and view all the answers

Which of the following is a characteristic of Amazon EC2 instances?

Instances can be based on an AMI. Signup and view all the answers

What does the term 'instance type' refer to in Amazon EC2?

VMs with different compute and memory capabilities. Signup and view all the answers

Study Notes

AWS - Amazon Web Services

Amazon started as an online bookstore, and AWS was launched on March 13, 2006; it's now one of the top cloud providers
Estimated to have over 2 million servers
AWS pioneered the IaaS (Infrastructure as a Service) model, offering compute, network, and storage services

AWS Services

Compute: Running VMs based on Amazon Machine Images (AMIs)
Storage: Amazon Simple Storage Service (S3) for reliable and inexpensive data storage
Network: Availability Zones, Regions, and Elastic IP addresses for flexible network configurations

AWS - Resource Distribution

Geographic cluster of Availability Zones (AZs) with 33 regions and 105 AZs
User can control resource allocation for fault tolerance, latency, and legal requirements
Regions are isolated for fault tolerance and stability, with communication among regions incurring costs

AWS - Availability Zones

Availability Zone: equivalent to a data center
33 regions and 105 Availability Zones, with two AZs having no common points of failure for infrastructural redundancy
User can control the zone for VM startup, and communication within a zone is free, while between zones it has to be paid

Amazon Simple Storage Service (S3)

Reliable and inexpensive data storage infrastructure
Supports objects from 1 byte to 5 TB, with two-level namespace (buckets and objects)
Slow compared to local discs or EBS, with high durability but low availability
Most users use S3 for short-term or long-term backup

Amazon EC2 Instance

Running VM based on an Amazon Machine Image (AMI), with instance type determining compute and memory capabilities
Boot device volume: Elastic Block Storage (EBS) and Instance Storage, with persistency achieved using EFS or EBS
List of instance types, including M7 with AWS Graviton, Intel, and AMD CPUs
Elastic IP address: static IP address for always-accessible instances, with account limits on VMs of a certain type

AWS EC2 Instance Lifecycle

Boot time, root device volume, data persistence, and charges vary between EBS-backed and Instance Store-backed instances
Instance lifecycle: reboot, stop/start, hibernate, and terminate, with differences in host computer, IP addresses, and charges

Base Technologies for Accessing the Cloud

Mobile processors: ARM, a British company acquired by SoftBank, developing processor designs for mobile devices
ARM Big Little, and Apple M3, a System-on-Chip (SoC) fabricated by TSMC 3 nm process, with varying performance, efficiency, and GPU cores
WLAN: Wireless Local Area Network, using IEEE 802.11 standards, marketed as Wi-Fi, consisting of clients and access points acting as routers

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Description

Learn about Amazon Web Services (AWS), its history, and its infrastructure service model, including compute, network, and storage. Discover how AWS started and grew to become one of the top cloud providers.