AWS EC2 and S3 Fundamentals

What are the main instance families available in AWS EC2?

• Virtual Machine Optimized

• Network Optimized

• Database Optimized

• General Purpose, Compute Optimized, Memory Optimized, Storage Optimized, Accelerated Computing

How does pricing differ between on-demand and reserved instances in EC2?

• On-demand instances are billed based on usage, while reserved instances require upfront payment for a lower hourly rate.

• Both on-demand and reserved instances are billed the same way, with no differences in pricing.

• Reserved instances are billed based on usage, while on-demand instances have a flat fee.

• On-demand instances require upfront payment for a fixed rate.

What is the purpose of availability zones in AWS?

• To increase the speed of data transfer between regions.

• The purpose of availability zones in AWS is to provide high availability and fault tolerance for applications.

• To provide a single point of failure for applications.

• To reduce the cost of cloud services.

How many availability zones are typically found in a single AWS region?

• 3 or more

• Only 1

• 1 or 2

• 5 or more

What is the difference between S3 Standard and S3 Infrequent Access storage classes?

• S3 Standard is designed for data that is rarely accessed; S3 Infrequent Access is for data that is always accessed.

• S3 Standard is for frequently accessed data; S3 Infrequent Access is for less frequently accessed data with lower storage costs.

• S3 Standard is for archival data; S3 Infrequent Access is for real-time data processing.

• S3 Standard has higher storage costs than S3 Infrequent Access; both are for frequently accessed data.

How can IAM roles enhance security in AWS?

• IAM roles require permanent credentials for access.

• IAM roles can only be used for administrative tasks.

• IAM roles are not compatible with AWS services.

• IAM roles enhance security by providing temporary credentials, enforcing least privilege access, and simplifying credential management.

What factors influence the pricing of EC2 instances?

• User interface design

• Server location preference

• Instance type, region, pricing model, operating system, additional features.

• Data transfer speed

What is the significance of the 't2' instance family?

• The 't2' instance family is designed for high-performance computing tasks.

• The 't2' instance family provides a cost-effective solution for general-purpose workloads with burstable performance.

• The 't2' instance family is exclusively for memory-intensive applications.

• The 't2' instance family offers fixed performance without any burst capabilities.

How do you determine the best instance type for your application?

• Assess resource requirements, analyze workload characteristics, consider traffic patterns, and review available instance types.

• Use the same instance type for all applications

• Choose the cheapest instance type available

• Select an instance type based on personal preference

What is the role of Amazon S3 in cloud storage?

• Amazon S3 is a content delivery network (CDN) service.

• Amazon S3 serves as a scalable and durable object storage service for cloud storage.

• Amazon S3 provides virtual machine hosting services.

• Amazon S3 is primarily used for database management.