If you’ve ever wanted to work in the cloud industry, now is your chance. With cloud computing platforms like Amazon Web Services (AWS) sweeping the business world, becoming trained and certified on that platform could open a lot of opportunities for you. However, before you can start working with Amazon Web Services, you must arrange and ace some AWS interviews. In that vein, here are some AWS interview questions and answers to help you prepare for the interview.
What are Key-pairs?
Public key cryptography is used to encrypt and decrypt login information on Amazon EC2. In public-key cryptography, a public key is used to encrypt data, while a private key is used to decrypt it at the receiver’s end. A key pair is made up of a public key and a private key. You can use key pairs to gain secure access to instances.
What is AWS Lambda?
AWS Lambda is a computing service that lets you run code without worrying about managing servers. Your code is executed by the lambda function whenever it is needed. You only have to pay once your code has been successfully implemented.
What is Cross-Region Replication?
The Amazon Web Services (AWS) service Cross Area Replication allows you to replicate data from one bucket to another in the same or different region. It supports asynchronous object copying, which means objects are not duplicated in real-time.
What is CloudFront?
CloudFront is a distributed computer delivery network that serves web pages and information to users based on their geographic location.
What are the minimum and maximum sizes that you can store in S3?
The smallest object that may be saved in S3 is 0 bytes, and the largest object is 5 TB.
What are the many types of storage available in S3?
Storage classes are used to help with simultaneous data loss in one or more facilities. A storage class is assigned to each item in S3. You can use a variety of storage classes in Amazon S3 to store your goods. You can choose a storage class that best suits your demands, and these storage classes are fairly long-lasting.
What is a snowball?
Snowball is a petabyte-scale data transport solution that uses secure equipment to transmit large amounts of data into and out of Amazon Web Services.
What are EBS Volumes?
Elastic Block Store is an Amazon Web Services (AWS) offering that gives EC2 instances access to a persistent block storage volume. EBS volumes are automatically replicated within their availability zone to defend against component failure. It gives your applications the high durability, availability, and low-latency performance they require.
What is Auto Scaling?
Auto Scaling is a feature of Amazon Web Services that scales capacity automatically to provide consistent and predictable performance. With auto-scaling, you may scale many resources across multiple services in minutes. If you already use Amazon EC2 Auto-Scaling, you can combine it with Auto-Scaling to scale more resources for other AWS services.
What is VPC peering connection?
A VPC peering connection is a networking connection that allows you to link one VPC to another VPC through a direct network path utilizing private IP addresses. VPC peering connections allow instances in different VPCs to communicate as if they were in the same network. Within the same account and with other AWS accounts, you can peer VPCs.
How can you control the security of your VPC?
You have two choices for managing your VPC’s security:
Network access control lists (NACL): It controls both inbound and outgoing traffic as a subnet-level firewall for linked subnets.
Security Organizations: It controls both inbound and outbound traffic for linked EC2 instances as a virtual firewall.
Final Thoughts: If you have an upcoming AWS job interview, these questions and answers can help you land the position. If you want to learn more about AWS, you can always learn for free on youtube. There are thousands of AWS tutorials available on YouTube. Use Career Ninja‘s LearnTube for hand-holding training. LearnTube organizes the results of your YouTube search into a course framework. If you want to learn “AWS tutorials”, search the term on LearnTube and it will show you a bunch of youtube videos like an online course. As a beginner, you’ll click through the videos from the first to the last, as if you were taking an online course tailored specifically for you.
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