Tag Archives: Amazon

Identifying the AWS Core Services!

AWS

If you are preparing for literally any level of AWS Certification, I think an excellent first step is to identify what I term core services. These services make the foundataion of AWS and they are ALWAYS the most tested areas.

I cover these services in depth in the growing list of AWS courses at CBT Nuggets! 

To simplify your locating them – I will group them just as AWS does in the main service list in your Web console.

AWS Compute

  • EC2 – Elastic Compute Cloud allows you to easily scale virtual machines for your main compute horsepower; note that an opposite approach in AWS is serverless compute with Lambda

AWS Storage

  • S3 – Simple Storage Services is object-based, key/value storage for many purposes in AWS
  • EBS – Elastic Block Store permits the use of MDD or SDD storage for many purposes, including boot volumes for EC2 instances

AWS Database

  • RDS – Relational Database Service allows you to host many database types in the cloud; this includes Oracle, MS SQL Server, and even Amazon’s own Aurora
  • DynamoDB – a NoSQL database option in the cloud that performs blazing performance and on-demand scalability
  • ElastiCache – creates in-memory caches for impressive performance interaction; this service also supports open standards in caching

AWS Networking

  • VPC – Virtual Private Cloud provides the networking components needed for an infrastructure including subsets, gateways, routing tables, and security mechanisms

AWS Management

  • CloudWatch – Permits the monitoring of key services; uses metrics and alarms for a familiar monitoring approach
  • CloudTrail – Permits the tracking of potentially all the API calls to AWS; this allows you detailed analysis of all events no matter the source – Web Console, CLI, SDK, etc.

AWS Security

  • IAM – Identity and Access Management allows the creation of users, groups, and roles for interacting securely with AWS

AWS Application Integration

  • SNS – the Simple Notification Service allows the generation of email and text notifications based on AWS events
  • SQS – the Simple Queue Service assists you in decoupling components and queuing messages between these components; this service helps the use of micro services for your processing needs

 

AWS Solutions Architect Quiz – Database Services 1

Here is a quick quiz for you to challenge you on the subject of Database Services for the AWS Solutions Architect – Associate exam. Enjoy! Remember, CBT Nuggets offers a growing library of new AWS training.

AWS Solutions Architect Associate - Database Services 1

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Congratulations - you have completed AWS Solutions Architect Associate - Database Services 1. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%
Your answers are highlighted below.
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Shaded items are complete.
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Pearson Education (InformIT)

AWS Solutions Architect – The Default VPC

VPC

A virtual private cloud (VPC) is a virtual network dedicated to your AWS account. It is logically isolated from other virtual networks in the AWS Cloud. You can launch your AWS resources, such as Amazon EC2 instances, into your VPC. You can configure your VPC by modifying its IP address range, create subnets, and configure route tables, network gateways, and security settings.

For the Solutions Architect – Associate exam, it is very important that you are familiar with your default VPC that Amazon creates for your in AWS. The idea here is to shield you from the complexities of networking in the cloud and get you up and running as quickly as possible with resources such as EC2 instances that require the underlying Virtual Private Cloud (VPC) infrastructure.

Keep these key facts in mind regarding your default VPC:

  • The default IPv4 addressing is private
  • The default CIDR range is /16
  • Each subnet must be associated with a route table, which specifies the allowed routes for outbound traffic leaving the subnet
  • The route table for the VPC has a default route entry that directs traffic to an Internet Gateway
  • AWS provides two features that you can use to increase security in your VPC: security groups and network ACLs; security groups control inbound and outbound traffic for your instances, and network ACLs control inbound and outbound traffic for your subnets; in most cases, security groups can meet your needs; however, you can also use network ACLs if you want an additional layer of security for your VPC
  • The default network ACL permits all traffic inbound and outbound
  • If you have a default VPC and don’t specify a subnet when you launch an instance, the instance is launched into your default VPC
  • You can launch instances into your default VPC without needing to know anything about Amazon VPC
  • Each instance that you launch into a default subnet has a private IPv4 address and a public IPv4 address; these instances can communicate with the internet through the internet gateway; an internet gateway enables your instances to connect to the internet through the Amazon EC2 network edge
  • A VPC spans all the Availability Zones in the region

Pearson Education (InformIT)