Cedcoss Technologies Interview Questions and Answers

EC2 instances in AWS have root devices for the operating system and block devices for additional storage.

• EC2 instances have a root device that contains the operating system and boot volume.

• Block devices are additional storage volumes that can be attached to EC2 instances.

• Block devices can be either EBS volumes or instance store volumes.

• EBS volumes are persistent storage volumes that persist independently from the life of an instance.

• Instance store volumes are temporary storag...read more

There are several types of EC2 instances available in AWS to cater to different computing needs.

• There are general purpose instances like t2, m5, and m6g.

• There are compute optimized instances like c5 and c6g.

• There are memory optimized instances like r5 and x1e.

• There are storage optimized instances like i3 and d2.

• There are GPU instances like p3 and g4.

• There are FPGA instances like f1.

• There are instances for high performance computing like hpc6.

• There are instances for networking...read more

S3 cross region replication allows automatic copying of objects between S3 buckets in different AWS regions.

• Enable versioning on source and destination buckets

• Create a replication rule in the source bucket specifying the destination bucket and region

• Ensure appropriate IAM roles and policies are set up for replication

• Monitor replication progress using CloudWatch metrics

I have 5 years of experience working with AWS cloud services.

• 5 years of hands-on experience with AWS cloud services

• Proficient in setting up and managing EC2 instances, S3 storage, and VPCs

• Experience with AWS Lambda, RDS, IAM, and CloudFormation

• Worked on designing and implementing scalable and cost-effective cloud solutions

• Certified AWS Solutions Architect

IAM (Identity and Access Management) is used to securely control access to AWS services and resources.

• IAM allows you to create and manage users, groups, and roles to control who can access specific resources.

• It helps in setting permissions for users to access AWS services and resources.

• IAM enables you to set up multi-factor authentication for added security.

• It allows you to create and manage policies to define permissions for different users or groups.

• IAM helps in auditing an...read more

MVC is a design pattern that separates an application into three main components: Model, View, and Controller. MVVM is a variation of MVC with an added ViewModel layer.

• MVC stands for Model-View-Controller, where Model represents the data, View represents the UI, and Controller acts as an intermediary between Model and View.

• MVVM stands for Model-View-ViewModel, which adds a ViewModel layer between the View and Model. ViewModel exposes data and methods to the View.

• In MVC, the V...read more