AWS Interview Questions – Beginner | AWS Interview Questions – Intermediate | AWS Interview Questions – Advanced
Amazon is the leading tech giant and has been the leading cloud brand over the past couple of years. Also, AWS is expected to grow in the future with more pace.
With more demand for AWS cloud, the need for AWS cloud professionals is also increasing. Most learners are already preparing themselves to become AWS cloud professionals. And, for the aspirants preparing for AWS Interview, this blog covers the Top 50 AWS Interview Questions you must prepare in 2022.
This blog covers the following levels of AWS Interview Questions.
AWS Beginner Questions
Let’s start AWS Interview Questions with some beginner-level questions that cover foundational knowledge and basics.
1) What is EC2?
Amazon EC2 or Amazon Elastic Compute Cloud is a cloud service that enables secure and resizable compute capacity. It makes web-scale cloud computing simpler for developers.
2) What Is S3?
Amazon S3 or Simple Storage Service is a storage service that makes web-scale computing easier. The simple interface is used to store and retrieve data at any time from anywhere over the internet.
3) What are the different Storage Classes available in Amazon S3?
Different Storage Classes available in Amazon S3 are:
- Amazon S3 standard
- Amazon S3 standard – infrequent Access
- Amazon S3 Reduced Redundancy
- Storage Amazon Glacier
4) What is Snowball?
Snowball is a small petabyte-scale data that enables transferring huge quantities of data inside and outside the AWS Cloud.
5) What is Cloud Watch?
AWS CloudWatch enables the monitoring of AWS environments like RDS Instances, EC2, CPU utilization
6) What is Elastic Transcoder?
Elastic Transcoder is an Amazon media transcoding service tool used to convert media files like videos in terms of format and resolution for different resolution devices like phones, laptops, etc.
7) What is VPC?
Amazon VPC or Virtual Private Cloud is an Amazon service that enables AWS resources to be in a logically isolated virtual network.
8) What is AWS Lambda?
AWS Lambda is an Amazon serverless compute service that enables code to run without managing servers in the AWS cloud.
9) What is SQS?
Amazon SQS or Simple Queue Service is a fully managed Amazon message queuing service that makes decoupling and scaling microservices and distributed systems possible.
10) What are the advantages of Auto-Scaling?
The advantages of auto-scaling are:
- Better availability
- Better fault tolerance
- Better cost management
11) What is AWS?
Amazon Web Services (AWS) is the most popular cloud service platform by Amazon. It offers more than 200 fully-featured services, including storage, analytics, developer tools, IoT, and security.
12) Name the key components of AWS
The key components of AWS are:
- Simple Storage Device or (S3): Widely used AWS service and a storage device.
- Route 53: DNS Web Service.
- Simple E-mail Service: Used for sending an e-mail via regular SMTP or by using the RESTFUL API call.
- Identity and Access Management: Provide identity management and enhanced security for a user’s AWS account.
- Cloud Watch: View and collect the key to monitoring AWS resources.
- Elastic Compute Cloud (EC2): On-demand computing resources for hosting applications and is convenient for unpredictable workloads.
- Elastic Block Store (EBS): Storage volumes that connect to EC2.
13) What is the difference between Amazon EC2 and Amazon S3?
| Amazon EC2 | Amazon S3 |
|---|---|
|
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14) Can Amazon S3 be used with EC2 Instances?
Amazon S3 can be used for instances with root devices and local instance storage. In this way, developers have access to the highly scalable, fast, reliable, and less expensive data storage infrastructure that Amazon uses to run its global network of websites.
15) What is Geo-Targeting in CloudFront?
Geo-targeting in CloudFront enables the detection of the user’s origin country and country code. It helps businesses to show personalized content according to their geographic video.
16) What are the different types of Cloud Services?
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)
17) What all does AMI include?
AMI include:
- A template for the root volume for a specific type of instance.
- Launch permissions for AWS account to avail AMI to launch instances.
- A block device mapping to ensure correct volumes to the launched instance.
18) Name the different types of Instances.
Different types of instances are:
- Compute Optimized
- Memory-Optimized
- Storage Optimized
- Accelerated Computing
- General Purpose
19) What is IAM?
Identity Access Management (IAM) is an Amazon web service for securely controlling access to AWS services. It lets you manage users, security credentials such as access keys, and permissions that control which AWS resources users and applications can access.
20) What are the features of AWS IAM?
Several features of AWS IAM:
- Enhanced security
- Granular control
- Temporary credentials
- Analyze access
- Flexible security credential management
- Leverage external identity systems
21) What do you understand about the Security Group?
Security Group is a rule-based Virtual Firewall used to control access to the instances. Some rules are controlling the inbound traffic to instances, and another set of rules control outbound traffic.
22) What is Amazon Route 53?
Amazon Route 53 is an Amazon web service for scalable and highly available DNS (Domain Name System). The number 53 in the name refers to TCP or UDP port 53, where DNS server requests are addressed.
AWS Intermediate Questions
Now come AWS Intermediate Questions of intermediate level that will cover some in-depth concepts.
23) How does Amazon Route 53 provide High Availability and Low Latency?
Amazon Route 53 uses three important things to provide high availability and low latency.
- Globally Distributed
- Server Dependency
- Optimal Locations
24) What are Spot Instances and On-Demand Instances?
- Spot Instances are unused computing capacity blocks released by AWS when EC2 instances are created.
- On-Demand Instances are virtual servers in the AWS EC2 used while testing and developing applications on EC2.
25) What is Connection Draining?
Connection Draining enables the servers to serve their current requests before they are updated or removed. Connection draining helps re-route the traffic from the Instances and is in a queue to be updated.
26) What is a Stateful and Stateless Firewall?
- Stateful Firewall maintains the state of defined rules. Based on the defined inbound rules, it lets the outbound rules flow.
- Stateless Firewall needs explicitly defined rules for inbound and outbound traffic.
27) What is Power User Access in AWS?
Power User Access is the Administrator Access to create, delete, and modify resources. But, the Administrator user cannot control users and permissions, i.e., they cannot permit others.
28) What is an Instance Store Volume and an EBS Volume?
- Instance Store Volume is temporary storage to store temporary data by an instance to a function.
- EBS Volume is a persistent storage disk that is available even when the instances are turned off.
29) What are Recovery Time Objective and Recovery Point Objective?
- Recovery Time Objective is the maximum delay that is acceptable between the interruption and restoration of service.
- Recovery Point Objective is the maximum delay that is acceptable since the last data restore point.
30) What is the way to upload a file that is greater than 100 MB in Amazon S3?
To upload a file greater than 100 MB on Amazon S3, use Multiplayer Upload Utility from AWS. It helps in uploading large files independently in multiple parts, and the upload time can be decreased by uploading parallelly.
31) What are the Policies that you can set for a User’s Password?
Policies that you can set for a User’s Password are:
- Minimum length of the password
- Use of special characters
- Use of uppercase, lowercase, numbers, and non-alphanumeric characters
- Automatic password expiration
32) Explain the Relation between Availability Zone and Region?
- AWS regions are individual geographic areas like Asia South (Mumbai) and US-west 1 (North California).
- Availability Zones are isolated locations within the regions that can replicate whenever needed.
33) What happens if AWS Direct Connect fails to perform its function?
First of all, it is recommended to backup the Direct Connect in case of a power failure. If no backup is there, VPC traffic is dropped, and you need to start everything from the initial point again. Also, enabling BFD, i.e., Bi-directional Forwarding Detection can avoid the issues.
34) Name the services which to use for collecting and processing e-commerce data?
Generally, data from e-commerce websites are unstructured manner. Amazon Redshift and Amazon DynamoDB are the best options as both are useful for unstructured data.
35) What are the different types of Virtualization in AWS?
Different types of virtualization in AWS are:
- Hardware Virtual Machine
- Paravirtualization
- Paravirtualization on HVM
36) How to monitor Amazon VPC?
Amazon VPC can be monitored in the following ways:
- CloudWatch and CloudWatch logs
- VPC Flow Logs
37) What are DDoS attacks, and What Services can minimize them?
DDoS or Distributed Denial of Service is a cyber attack that disrupts the normal traffic to a web property. It attacks online services and websites by giving them more traffic than they can handle. The AWS Shield is a managed service for DDoS protection.
38) What are some of the AWS Services that are not Region Specific?
Some of the non-region specific AWS services are:
- IAM
- Route 53
- Web Application Firewall
- CloudFront
39) What are the different types of Load Balancers in AWS?
Different types of load balancers in AWS are:
- Application Load Balancer
- Network Load Balancer
- Classic Load Balancer
AWS Advanced Questions
Finally, the AWS Interview Questions of advanced level cover deep knowledge of the AWS concepts.
40) What are some Security Best Practices for Amazon EC2?
Security best practices for Amazon EC2 are:
- Only allowing the trusted hosts or networks to access ports on an instance.
- Using Identity and Access Management (Identity and Access Management) to control access to AWS resources.
- Only enabling those permissions you require and disabling password-based logins for instances launched from your AMI.
41) Differentiate between Stopping and Terminating an EC2 Instance?
When an Ec2 instance is stopped, a normal shutdown is performed on the instance, whereas when an EC2 instance is terminated, it gets transferred to a stopped state, and then the attached EBS volumes are permanently deleted.
42) How to configure CloudWatch to recover an EC2 Instance?
Configuring CloudWatch to recover an EC2 instance:
- Using Amazon CloudWatch – create an alarm
- Then Define Alarm – Actions tab
- Choose the “recover this instance” option.
43) Name the common types of AMI Designs?
Some common types of AMI designs are:
- Fully Baked AMI
- Just Enough Baked AMI (JeOS AMI)
- Hybrid AMI
44) How to auto-delete old Snapshots?
Auto-deleting old snapshots:
- Taking snapshots of EBS volumes on Amazon S3
- Using AWS Ops Automator to handle snapshots automatically.
- This creates, copies, and deletes Amazon EBS snapshots.
45) How can a user gain access to a Specific Bucket?
- Categorizing instances
- Defining how authorized users can manage specific servers
- Locking down tags
- Attaching policies to IAM users.
46) What are the factors to consider while Migrating to AWS?
Considered factors while migrating to AWS are:
- Operational Costs
- Workforce Productivity
- Cost avoidance
- Operational resilience
- Business agility
47) What are some Security Products and features available in VPC?
Security products and features available in VPC:
- Security groups
- Network access control lists
- Flow logs
48) When should a Classic Load Balancer and an Application load balancer get used?
A Classic Load Balancer is ideal for simple load balancing of traffic across multiple EC2 instances. In contrast, an Application Load Balancer is ideal for microservices or container-based architectures where there is a need to route traffic to multiple services or load balance across multiple ports on the same EC2 instance.
49) What happens if my application stops responding to requests in beanstalk?
AWS Beanstalk applications have a built-in system for avoiding failures in the underlying infrastructure. If an Amazon EC2 instance fails somehow, Beanstalk will automatically use Auto Scaling to launch a new instance. If your application is not responding to the custom link, Beanstalk can also detect it.
50) What automation tools can you use to spin up servers?
The automation tools to use to spin up servers are:
- Use the AWS API tools for scripts. Such scripts are also written in bash, Perl, or other languages of your choice.
- Using configuration management and provisioning tools like puppet or Opscode Chef. You can also use a tool like Scalr.
- Use a managed solution such as Rightscale.
Conclusion
AWS is the leading cloud platform, and most companies look for skilled aspirants as their employees. To secure a job and clear AWS Interview, we covered some most preferred topics for the AWS Interview Questions. The 3 different levels of AWS Interview Questions that we covered are Beginner, Intermediate, and Advance. All these questions will surely help you in your AWS Interview.
Download the Complete AWS SA Sample Interview Questions
When you have tested your knowledge by answering these AWS SA sample interview questions, I hope you have a clear stand in terms of your AWS SA interview preparation.
Note: K21Academy also offers a complete AWS SA Interview Preparation Questions Prep Guide where learners get to practice questions to test their AWS SA before the actual interview.
To download the complete AWS SA Sample Interview Questions guide click here.
If you feel you are lagging somewhere and you need to buckle up your preparation process, then you can enrol for the K21Academy AWS SA certification training course to clear the final exam successfully.
Related/Reference
- AWS Networking Fundamentals – Introduction and Basics
- AWS RDS: Introduction and Tutorial
- Overview of Amazon Web Services & Concept
- AWS Management Console Walkthrough
- AWS Certified Solutions Architect Associate SAA-C02: Everything You Need To Know
Next Task For You
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