AWS CERTIFICATION
About the course:
An AWS Certification is a credential issued by AWS to individuals who show they have specific knowledge, skills, and abilities. The platform is developed with a combination of infrastructure as a service (IaaS), platform as a service (PaaS), and packaged software as a service (SaaS) offering. The industry leader AWS is the ideal choice if you want to devote time and effort to mastering cloud computing.
Table of contents:
- About the course
- Description
- AWS Trends
- What will I learn?
- Top hiring companies
- Salary of AWS Certified professionals
- AWS Certification
- Question and answers
Description:
As you are all aware, the cloud market places a larger value on AWS certificates. These days, everything is migrating to the cloud, therefore if you work in IT, you shouldn’t be slow to adapt new technologies like Amazon Web Services.
One of the most useful and sought-after cloud computing qualifications available today is the AWS Solution Architect certification. Therefore, earning the AWS Certified Solutions Architect Associate SAA-C02 Certification will undoubtedly propel your career forward.
AWS Trends:
Cloud computing is the hottest emerging trend in the field of information technology. All businesses, large and small, are moving their old systems, infrastructure, and applications to the cloud.
As per Gartner reports Amazon cloud currently ten times bigger than its next 14 competitors, combined. This clearly shows that more and more organizations are opting for AWS which directly indicates that more career opportunities coming your way if you are AWS certified.
What will I learn?
The AWS Security certification validates your knowledge in the field of security with respect to the security aspects, such as data encryption, protection and more. Enhance you to sharpen your skills and expertise involving advanced cloud-based solutions, and migrating existing workloads to the cloud.
Top Hiring companies:
- Deloitte
- Perficient
- VMware
- Salesforce
- Accenture
- HashiCorp
Salary of AWS Certified professionals:
As per reports of the PayScale the average base salary is 110 USD.
AWS Certification:
An AWS Certification is a certificate that AWS awards to anyone who can demonstrate that they possess particular knowledge, skills, and abilities. AWS certifications are designed to certify the technical skills and knowledge associated with best practices for building secure and reliable cloud-based applications using AWS technology.
So you need to grab this opportunity and become a certified AWS developer as soon as possible because you all know the value of the AWS certification.
Question and Answers:
Explain what is AMI?
Answer: AMI stands for Amazon Machine Image. It’s a template that provides the information (an operating system, an application server, and applications) required to launch an instance, which is a copy of the AMI running as a virtual server in the cloud. You can launch instances from as many different AMIs as you need.
What is the Amazon EC2 service?
Answer: Amazon describes Elastic Compute Cloud (Amazon EC2) as a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale cloud computing easier for developers. Amazon EC2’s simple web service interface allows developers to obtain and configure capacity with minimal friction.
How is buffer used in Amazon web services?
Answer: Buffer is used to making the system more resilient to burst of traffic or load by synchronizing different components. The components always receive and process the requests in an unbalanced way. Buffer keeps the balance between different components and makes them work at the same speed to provide faster services.
What are the different deployment models for Cloud?
Answer: The different models are
- Private cloud
- Public cloud
- Hybrid cloud
How to deliver content faster?
Answer: Describe in detail the service like Amazon CloudFront which is a content delivery web service. It integrates with other AWS services to give developers and businesses an easy way to distribute content to end-users with low latency, high data transfer speeds, and no minimum usage commitments.
What is the use of Amazon ElastiCache?
Answer: Amazon ElastiCache is a web service that makes it easy to deploy, operate, and scale an in-memory data store or cache in the cloud.
What is an EC2 instance? How to protect and reuse it?
Answer: Explain that EC2 is a web service that provides resizable computing capacity in the cloud. Describe how to create an AMI, taking EC2 snapshot to backup, and reuse EC2 instance.
What kind of instances does AWS offer?
Answer: Describe all EC2 instance types. Each EC2 instance type comprises varying combinations of CPU, memory, storage, and networking capacity giving you the flexibility to choose the appropriate mix of resources for your applications.
What happens if CloudTrail is turned on for my account but my Amazon S3 bucket is not configured with the correct policy?
Answer: CloudTrail files are delivered according to S3 bucket policies. If the bucket is not configured or is misconfigured, CloudTrail might not be able to deliver the log files.
Mention what is the relation between an instance and AMI?
Answer: From a single AMI, you can launch multiple types of instances. An instance type defines the hardware of the host computer used for your instance. Each instance type provides different compute and memory capabilities. Once you launch an instance, it looks like a traditional host, and we can interact with it as we would with any computer.
What do you know about the Shared Responsibility Model established with AWS?
Answer: Because you’re building systems on top of the AWS platform, the security responsibilities will be shared. While AWS manages the security of the cloud, security in the cloud is the responsibility of the customer. Customers retain control of the security they choose to implement to protect their own content, platform, applications, systems, and networks, no differently than they would have for the applications in an on-site datacenter.
What are storage options provided by AWS?
Answer: Describe in detail all the storage options provided by AWS like EBS, S3, Glacier, etc. Remember that AWS offers many different storage services, including Amazon S3, Amazon EBS, Amazon EFS, and Amazon Glacier. Amazon S3 is an object storage service, Amazon EBS is a block storage service, Amazon EFS is a file storage service, and Amazon Glacier is a long-term archive storage service.
Refer depending on scenario what is the best storage option.
How do you choose an Availability Zone?
Answer: Let’s understand this through an example, consider there’s a company which has a user base in India as well as in the US.
Let us see how we will choose the region for this use case:
So, with reference to the above figure the regions to choose between are, Mumbai and North Virginia. Now let us first compare the pricing, you have hourly prices, which can be converted to your per month figure. Here North Virginia emerges as a winner. But, pricing cannot be the only parameter to consider. Performance should also be kept in mind hence, let’s look at latency as well. Latency basically is the time that a server takes to respond to your requests i.e the response time. North Virginia wins again!
Explain the advantages of AWS’s Disaster Recovery (DR) solution.
Following are the advantages of AWS’s Disaster Recovery (DR) solution:
- AWS offers a cost-effective backup, storage, and DR solution, helping the companies to reduce their capital expenses
- Fast setup time and greater productivity gains
- AWS helps companies to scale up even during seasonal fluctuations
- It seamlessly replicates on-premises data to the cloud
- Ensures fast retrieval of files
What are the different types of load balancers in EC2?
Answer: There are three types of load balancers in EC2 –
Application Load Balancer – These balancers are designed to make routing decisions at the application layer.
Network Load Balancer: Network load balancer handles millions of requests per second and helps in making routing decisions at the transport layer.
Classic Load Balancer: Classic Load Balancer is mainly used for applications built within the EC2-Classic network. It offers basic load balancing at varying Amazon EC2 instances.
What is AWS Lambda?
Answer: AWS Lambda is a compute service that lets you run code in the AWS Cloud without provisioning or managing servers.
What is a Serverless application in AWS?
Answer: The AWS Serverless Application Model (AWS SAM) extends AWS Cloud Formation to provide a simplified way of defining the Amazon API Gateway APIs, AWS Lambda functions, and Amazon DynamoDB tables needed by your serverless application.
Is it possible to change the private IP addresses of an EC2 while it is running/stopped in a VPC?
Answer: The primary private IP address cannot be changed. Secondary private addresses can be unassigned, assigned, or moved between interfaces or instances at any point.
Give one instance where you would prefer Provisioned IOPS over Standard RDS storage?
Answer: Provisioned IOPS can be preferred over Standard RDS storage when we have batch-oriented workloads.
What are the different types of cloud services?
Answer: Different types of cloud services are:
- Software as a Service (SaaS)
- Data as a Service (DaaS)
- Platform as a Service (PaaS)
- Infrastructure as a Service (IaaS)
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