AWS Interview Question and Answer for freshers and Experienced
Categories: AWS(Amazon Web Services) Interview questions and answers Experienced Freshers Study
AWS Interview Question and Answers
Q: What is AWS?
Ans: AWS stands for Amazon Web Service; it is a collection of remote computing services also known as a cloud computing platform. This new realm of cloud computing is also known as IaaS or Infrastructure as a Service.
Q: What the key components of AWS are?
Ans: The key components of AWS are
- Route 53: A DNS web service.
- Simple E-mail Service: It allows sending e-mail using RESTFUL API call or via regular SMTP.
- Identity and Access Management: It provides enhanced security and identity management for your AWS account.
- Simple Storage Device or (S3): It is a storage device and the most widely used AWS service.
- Elastic Compute Cloud (ECIt provides on-demand computing resources for hosting applications. It is handy in case of unpredictable workloads.
- Elastic Block Store (EBS): It offers persistent storage volumes that attach to EC2 to allow you to persist data past the lifespan of a single Amazon EC2 instance.
- CloudWatch: To monitor AWS resources, It allows administrators to view and collect keys. Also, one can set a notification alarm in case of trouble.
Q: What S3 is?
Ans: S3 stands for Simple Storage Service. You can use the S3 interface to store and retrieve any amount of data, at any time and from anywhere on the web. For S3, the payment model is “pay as you go.”
Q: What the relationship between an instance and AMI is?
Ans: 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 computer 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.
Q: What does an AMI include?
Ans: An AMI includes the following things
- A template for the root volume for the instance
- Launch permissions decide which AWS accounts can avail the AMI to launch instances
- A block device mapping that determines the volumes to attach to the instance when it is launched
Q: How can you send a request to Amazon S3?
Ans: Amazon S3 is a REST service, and you can send a request by using the REST API or the AWS SDK wrapper libraries that wrap the underlying Amazon S3 REST API.
Q: How many buckets can you create in AWS by default?
Ans: By default, you can create up to 100 buckets in each of your AWS accounts.
Q: What T2 instances is?
Ans: T2 instances are designed to provide moderate baseline performance and the capability to burst to higher performance as required by the workload.
Q: In VPC with private and public subnets, database servers should ideally be launched into which subnet?
Ans: With private and public subnets in VPC, database servers should ideally launch into private subnets.
Q: How the buffer is used in Amazon web services?
Ans: The buffer is used to make the system more robust to manage traffic or load by synchronizing different components. Usually, components receive and process the requests in an unbalanced way. With the help of a buffer, the components will be balanced and will work at the same speed to provide faster services.
Q: Is the property of broadcast or multicast supported by Amazon VPC?
Ans: No, currently Amazon VPI does not provide support for broadcast or multicast.