AWS Interview Questions Answers for Freshers and Experienced
Categories: AWS(Amazon Web Services) Interview questions and answers Experienced Freshers
Question :- While connecting to your instance what are the possible connection issues one might face?
Answer:- The possible connection errors one might encounter while connecting instances are
- Connection timed out
- User key not recognized by the server
- Host key not found, permission denied
- An unprotected private key file
- Server refused our key or No supported authentication method available
- Error using MindTerm on Safari Browser
- Error using Mac OS X RDP Client
Question :- What are key-pairs in AWS?
Answer:- Key-pairs are secure login information for your virtual machines. To connect to the instances, you can use key-pairs which contain a public-key and private-key.
Question :- Is the property of broadcast or multicast supported by Amazon VPC?
Answer:- No, currently Amazon VPI does not provide support for broadcast or multicast.
Question :- How many Elastic IPs are allowed to be created by AWS?
Answer:- 5 VPC Elastic IP addresses are allowed for each AWS account.
Question :- Explain default storage class in S3
Answer:- The default storage class is a Standard frequently accessed.
Question :- What are the Roles?
Answer:- Roles are used to provide permissions to entities which you can trust within your AWS account. Roles are very similar to users. However, with roles, you do not require to create any username and password to work with the resources.
Question :- What are the edge locations?
Answer:- Edge location is the area where the contents will be cached. So, when a user is trying to access any content, the content will automatically be searched in the edge location.
Question :- What is VPC?
Answer:- VPC stands for Virtual Private Cloud. It allows you to customize your networking configuration. It is a network which is logically isolated from another network in the cloud. It allows you to have your IP address range, internet gateways, subnet, and security groups.
Question :- Explain snowball
Answer:- Snowball is a data transport option. It used source appliances to a large amount of data into and out of AWS. With the help of snowball, you can transfer a massive amount of data from one place to another. It helps you to reduce networking costs.
Question :- What is a redshift?
Answer:- Redshift is a big data warehouse product. It is a fast and powerful, fully managed data warehouse service in the cloud.
Question :- What are the advantages of auto-scaling?
Answer:- Following are the advantages of autoscaling
- Offers fault tolerance
- Better availability
- Better cost management
Question:- What is meant by subnet?
Answer:- A large section of IP Addresses divided into chunks is known as subnets.
Question:- Can you establish a Peering connection to a VPC in a different region?
Answer:- Yes, we can establish a peering connection to a VPC in a different region. It is called inter-region VPC peering connection.
Question:- What is SQS?
Answer:- Simple Queue Service is also known as SQS. It is distributed queuing service which acts as a mediator for two controllers.
Question:- How many subnets can you have per VPC?
Answer:- You can have 200 subnets per VPC.
Question:- DNS and Load Balancer service comes under which type of cloud service?
Answer:- DNS and Load Balancer and DNS services come under IAAS-storage cloud service.
Question:- What is the role of AWS CloudTrail?
Answer:- CloudTrail is a specially designed tool for logging and tracking API calls. It helps to audit all S3 bucket accesses.
Question:- When was EC2 officially launched?
Answer:- EC2 officially launched in the year 2006.
Question:- What is SimpleDB?
Answer:- SimpleDB is a data repository of structure record which encourages data doubts and indexing both S3 and EC2are called SimpleDB.
Question:- Explain Amazon ElasticCache
Answer:- Amazon Elasticcache is a web service which makes it easy to deploy, scale and store data in the cloud.
Question:- What is AWS Lambda?
Answer:- Lambda is an Amazon compute service which allows you to run code in the AWS Cloud without managing servers.