Launched back in 2006, AWS has succeeded in becoming the leading provider of on-demand cloud computing services. The cloud computing services provider secures a staggering 32% of the cloud computing market share up until the last quarter of 2018.
Every aspiring developer looking to make it big in the cloud computing ecosphere must have a stronghold on AWS. If you’re eyeing for the role of an AWS Developer, then these most important 20 AWS interview questions will help you take a step further towards your desired job avenue.
AWS Interview Questions and Answers
Now here we are sharing a list of AWS Architect interview Questions with answers which are asked in the interview.
Question: Define AWS?
Answer: AWS is initials of Amazon Web Services. It is a platform that offers safe cloud services, data storage facilities, computing platforms, content delivery, and various other associated services to the users.
Question: What are the various AWS products built for offering cloud services?
Answer: There are mainly three kinds of cloud service types for which AWS products are made. These are stated as under.
- Computing: The AWS products for computing are Auto-Scaling, EC2, Lights at, Elastic Beanstalk, and Lambda.
- Storage: The AWS products for storage include S3, Elastic File System, Elastic Block Storage, and Glacier.
- Networking: The AWS products for networking include VPC, Route53 and Amazon CloudFront.
Question: Define Auto-Scaling?
Answer: Auto-Scaling is a function that supports the provision and launch of new instances after recognizing the demand. This way it offers the users the ability to increase or decrease the resource capacity as per the changing demand levels.
Question: Is there any difference between region and availability zone?
Answer: Yes, there is a difference between region and availability zone. The regions are the different geographical locations like United States-West 1 i.e. North California and Asia South i.e. Mumbai. An availability zone is the part of the regions which are mostly the isolated zones that can replicate itself when the need arises.
Question: What do you understand by geo-targeting in CloudFront?
Answer: Geo-Targeting in the CloudFront supports the creation of customized content for the target audience as per the demand and needs of a specific geographical area. This helps the businesses to showcase their personalized content to the target audience in different geographic locations without changing its URL.
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Question: What are the steps involved in CloudFront?
Answer: There are four steps involved in CloudFront. These include the following.
Step 1: Creating a CloudFormation template in YAML or JSON format.
Step 2: Saving the code in an S3 bucket so that it serves the repository for the code.
Step 3: Using the AWS CloudFormation to call the bucket and thereby creating a new stack on the template.
Step 4: CloudFormation reads the file and thus understands the services required that are called along with their order details, relationships with services and associated provisions.
Question: Which are tools available in AWS that could help you recognize that you are paying more than required for AWS?
Answer: There are four tools available in AWS that could help in recognizing that you are paying more than required for AWS. These are stated as under.
- Checking the top service table.
- AWS budgets.
- Cost allocation tags.
- Cost explorer.
Question: What is S3 in AWS?
Answer: S3 is referred to as Simple Storage Service. It is used to store and retrieve data of any amount at any time from anywhere in the world using the web. To use this service the payment model developed is “Pay As You Go”.
Question: What is AMI?
Answer: AMI is the short form of Amazon Machine Image. It is a template that offers the information required to launch an instance that acts as a copy of AMI running as a virtual server in the cloud. The information provided is about the operating system, applications and the application server itself. Many instances can be launched at one time from different AMIs as per your instructions.
Question: What is the relation between AMI and Instance?
Answer: Instances can be launched by AMIs. One AMI can launch as many instances as required. An instance type defines the hardware of the host computer for Instance including information about computers and its memory abilities. After launching an instance, it works as a traditional host and could be interacted with as with any other computer.
Question: What are the inclusions in AMI?
Answer: There are three inclusions in Ami which include the following.
- Template for the root volume for the instance.
- Block device mapping that helps in determining the volumes after attaching to the instance after launch.
- Launch permissions that helps in deciding which AWS account can take the AMI for launching Instances.
Question: Can we send a request to Amazon S3?
Answer: Yes, we can send a request to Amazon S3 by using the REST API or the AWS SDK wrapper libraries which wrap the underlying Amazon S3 REST API.
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Question: What are the main differences between EC2 and S3?
Answer: The main differences between EC2 and S3 are stated under.
EC2S3It is a cloud web serviceIt is a data storage system is used for hosting the web application. It is used for storing any amount of data works as a huge computer machine. It is a REST interface.It can either run LINUX or Windows and could also handle PHP, Python, Apache and various other kinds of databases.It applies secure authentication keys such as HMAC-SHA1
Question: Can buckets be created in AWS accounts?
Answer: Yes, buckets can be created in AWS accounts. By default up to 100 buckets can be created in the AWS account.
Question: Define T2 Instance?
Answer: T2 Instance is specifically designed to offer moderate baseline performance and the ability to burst into higher performance as per the requirements of the workload.
Question: Identify different kinds of Instances?
Answer: The different kinds of Instances include the following.
- Accelerated Computing Instance.
- Memory-Optimized Instance.
- Storage Optimized Instance.
- Computer Optimized Instance.
- General Purpose Instance.
Question: Does Amazon VPC support the property of broadcast or multicast?
Answer: Amazon VPC does not support the property of broadcast or multicast.
Question: Can we create Elastic IPs in AWS?
Answer: Yes, we can create Elastic IPs in AWS. About 5 VPC Elastic IP addresses are allowed under each AWS account.
Question: What is a default storage class in S3?
Answer: The default storage class in S3 is referred to as the Standard frequently accessed.
Question: What are the roles in AWS?
Answer: Roles in AWS are used to provide permission to the entities that can be trusted within the AWS account. They are similar to the users and do not require the creation of any user name and password to work along with various other resources in AWS.
Question: What are the edge locations in AWS?
Answer: Edge locations in AWS are referred to as the area where the contents will be cached. When a user tries to access any content than in such case the content automatically searches for the edge location.
Question: What is the full form of VPC? Explain VPC?
Answer: The full form of VPC is Virtual Private Cloud. VPC helps in customizing the network configuration process. It acts as a network that is logically isolated from various other networks in the cloud. VPC allows the users to have their IP address range, security groups, subnet and internet gateways.
Question: What is a Snowball in AWS?
Answer: A Snowball in AWS is a data transport option. It uses the source appliances to a large amount of data for getting into and out of AWS. Snowball can be used for the transfer of massive data from one place to another. It also helps in reducing networking costs.
Question: What is Redshift in AWS?
Answer: Redshift in AWS is a big data warehouse product that is fast and powerful enough to manage data warehouse service in the cloud.
Question: Define Subnet in AWS?
Answer: Subnet in AWS is referred to as the large section of IP Address which is divided into chunks. We can have 200 subnets per VPC.
Question: What is SQL in AWS?
Answer: SQL stands for Simple Queues Services that offers distributed queuing service that acts as a mediator for two controllers.
Question: What is SimpleDB in AWS?
Answer: SimpleDB is a name given to the data repository structure record which supports data doubts and index S3 and EC2.
Question: What is Amazon ElasticCache?
Answer: Amazon ElasticCache is a web service that helps in easy deployment, scaling and storing of data in the cloud.
Question: What is AWS Lambda?
Answer: AWS Lambda is a computing service offered by Amazon to run code in the AWS cloud without managing the servers.
Question: What is Amazon EMR?
Answer: Amazon EMR is a survived cluster stage that helps in interpreting the working of the different data structures before the intimation. The various components of Amazon EMR are Apache Hadoop, Apache Spark, Apache Hive and various others. They help in investigating a large amount of data, prepare data analytic goals and market intellect workloads using open-source designs.
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