What do you understand by AWS?
This is one of the commonly asked AWS developer interview questions. This question checks your basic AWS knowledge so the answer should be straightforward. Amazon Web Services (AWS) is a cloud service platform which offers computing power, analytics, content delivery, database storage, deployment and some other services to help you in your business growth. These services are highly scalable, reliable, secure, and inexpensive cloud computing services which are outlined to work together and, applications thus created are more advanced and escalade.
What do you mean by AMI? What does it include?
You may come across one or more AMI related AWS developer interview questions during your AWS developer interview. So, prepare yourself with a good knowledge of AMI.
AMI stands for the term Amazon Machine Image. It’s an AWS template which provides the information (an application server, and operating system, and applications) required to perform the launch of an instance. This AMI is the copy of the AMI that is running in the cloud as a virtual server. You can launch instances from as many different AMIs as you need. AMI consists of the followings:
- A root volume template for an existing instance
- Launch permissions to determine which AWS accounts will get the AMI in order to launch the instances
- Mapping for block device to calculate the total volume that will be attached to the instance at the time of launch
How many buckets can be created in S3?
By default, you can create up to 100 buckets.
What is the connection between AMI and Instance?
This is one of the common AWS developer interview questions. If the interviewer is expecting to get a detailed answer from you then explain the procedure for vertical scaling.
What is the difference between Amazon S3 and EC2?
| Amazon S3 | Amazon EC2 |
| The meaning of S3 is Simple Storage Service. | The meaning of EC2 is Elastic Compute Cloud. |
| It is just a data storage service which is used to store large binary files. | It is a cloud web service which is used to host the application created. |
| It is not required to run a server. | It is enough to run a server. |
| It has a REST interface and uses secure HMAC-SHA1 authentication keys. | It is just like a huge computer machine which can handle application like Python, PHP, Apache and any other database. |
How many storage options are there for EC2 Instance?
There are four storage options for Amazon EC2 Instance:
- Amazon EBS
- Amazon EC2 Instance Store
- Amazon S3
- Adding Storage
Amazon EC2 is the common topic you may come across while going through AWS developer interview questions. Get a thorough knowledge of the EC2 instance and all the storage options for the EC2 instance
What is the purpose of T2 instances?
T2 instances are designed for
- Providing moderate baseline performance
- Higher performance as required by workload
What is the use of the buffer in AWS?
This is among frequently asked AWS developer interview questions. Give the answer in simple terms, the buffer is mainly used to manage load with the synchronization of various components i.e. to make the system fault-tolerant. In the absence of buffer, components do not use any balanced method to receive and process requests. But the buffer makes components to work in a balanced manner and at the same speed, thus results in faster services.
What are the popular DevOps tools?
In an AWS DevOps Engineer interview, this is the most common AWS interview questions for DevOps. To answer this question, mention the popular DevOps tools with the type of tool –
- Jenkins – Continuous Integration Tool
- Git – Version Control System Tool
- Nagios – Continuous Monitoring Tool
- Selenium – Continuous Testing Tool
- Docker – Containerization Tool
- Puppet, Chef, Ansible – Deployment and Configuration Management Tools
What is auto-scaling?
Auto-scaling is a function that allows you to provision and launch new instances whenever there is a demand. It allows you to automatically increase or decrease resource capacity in relation to the demand.
