Cloud Practitioner Certification Flashcards

What benefits does using the Amazon Relational Database Service (RDS) provide a database administrator?

Answer: RDS simplifies relational database administration tasks

Amazon RDS is a managed database service, meaning AWS handles many routine administrative tasks like hardware provisioning, database setup, patching, and backups. This significantly reduces the operational burden on database administrators, allowing them to focus more on application development and optimization rather than infrastructure management.

You can run many types of database software on Amazon RDS, a managed relational database server. Service management means less database administration is required than would otherwise be the case. Hardware provisioning, database configuration, patching, and backups are all included in the managed service.

Answer: Pay-as-you-go pricing

AWS, like most cloud providers, operates on a pay-as-you-go pricing model. This means customers only pay for the specific resources they consume, such as compute, storage, and data transfer, without requiring large upfront investments or long-term contracts. This model offers flexibility and cost efficiency, as users are billed based on their actual usage.

Determine the Total Cost of Ownership (TCO) for a task that needs physical isolation for a customer. What hosting model ought to be applied?

Answer: Dedicated Hosts

Dedicated Hosts in AWS provide physical servers that are entirely dedicated to a single customer's use. This hosting model offers the highest level of physical isolation, which is often a requirement for specific compliance standards, regulatory mandates, or software licensing agreements that necessitate dedicated hardware. This ensures no other AWS customer shares the underlying physical server.

Which design approaches does the AWS Cloud enable to enhance workload performance? (Choose TWO)

Answer: Loose coupling

Loose coupling enhances performance by allowing application components to operate independently, preventing failures in one part from affecting others and enabling independent scaling. Removing single points of failure ensures high availability and performance by designing systems with redundancy, so that if one component fails, others can take over, preventing downtime and maintaining service levels.

Three EC2 instances will be started by a user behind a single elastic load balancer. Highly available should be the deployment's goal.

Answer: Launch the instances across multiple Availability Zones in a single AWS Region.

To achieve high availability, EC2 instances should be distributed across multiple Availability Zones (AZs) within a single AWS Region. AZs are physically isolated locations designed to be independent of failures in other AZs. This ensures that if one AZ experiences an outage, the application remains available by routing traffic to instances in other healthy AZs, preventing a single point of failure.

A business must move its web application to AWS. The majority of the computing power is continuously used all year. Which of the following would be the most cost-effective solution?

Answer: Reserved instances

Reserved Instances (RIs) are the most cost-effective solution for workloads with continuous, predictable usage over a 1-year or 3-year term. By committing to a specific instance type and region, users can receive significant discounts compared to On-Demand pricing. This model is ideal for applications that run consistently all year, like a business's web application with continuous computing power usage.

A business's infrastructure is housed in a data center on its property. Currently, ID management is handled by an operations team. Which of the following services would assist them in performing the same function in AWS if they decided to shift to the cloud?

Answer: AWS IAM

AWS Identity and Access Management (IAM) is the service that enables secure control over who can access your AWS resources and what actions they can perform. It allows businesses to manage users, groups, and roles, defining granular permissions for accessing AWS services and resources. This directly replaces the on-premises ID management function for cloud resources, ensuring secure identity management in the cloud.