Free AWS Cloud Practitioner Certification Questions and Answers 1 — Questions and Answers
Question 1: What benefits does using the Amazon Relational Database Service (RDS) provide a database administrator?
- RDS databases automatically scale based on load
- RDS provides 99.99999999999% reliability and durability
- RDS simplifies relational database administration tasks (Correct answer)
- RDS enables users to dynamically adjust CPU and RAM resources
Correct 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.
Question 2: 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.
- Automated cost optimization
- Volume pricing discounts
- Economies of scale
- Pay-as-you-go pricing (Correct answer)
Correct 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.
Question 3: Determine the Total Cost of Ownership (TCO) for a task that needs physical isolation for a customer. What hosting model ought to be applied?
- Reserved Instances
- Dedicated Hosts (Correct answer)
- Spot Instances
- On-Demand Instances
Correct 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.
Question 4: Which design approaches does the AWS Cloud enable to enhance workload performance? (Choose TWO)
- Minimum viable product
- Minimize platform design
- Loose coupling (Correct answer)
- Customized hardware
- Remove single points of failure
Correct 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.
Question 5: Three EC2 instances will be started by a user behind a single elastic load balancer. Highly available should be the deployment's goal.
- Launch the instances as EC2 Spot Instances in the same AWS Region and the same Availability Zone.
- Launch the instances across multiple Availability Zones in a single AWS Region. (Correct answer)
- Launch the instances as EC2 Reserved Instances in the same AWS Region, but in different Availability Zones.
- Launch the instances in multiple AWS Regions, and use Elastic IP addresses.
Correct 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.
Question 6: A business must move its web application to AWS. The majority of the computing power is continuously used all year. <br> <br> Which of the following would be the most cost-effective solution?
- Spot instances
- Regular instances
- On-demand instances
- Reserved instances (Correct answer)
Correct 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.
Question 7: A business's infrastructure is housed in a data center on its property. Currently, ID management is handled by an operations team. <br> <br> Which of the following services would assist them in performing the same function in AWS if they decided to shift to the cloud?
- AWS KMS
- AWS IAM (Correct answer)
- AWS X-Ray
- AWS Cloud Trail
Correct 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.
Free AWS Cloud Practitioner Certification Questions and Answers 1
What benefits does using the Amazon Relational Database Service (RDS) provide a database administrator?