- (Topic 1)
Which AWS Well-Architected Framework concept represents a system's ability to remain functional when the system encounters operational problems?
Correct Answer:
B
The AWS Well-Architected Framework is a set of best practices and guidelines for designing and operating systems in the cloud. The framework consists of five pillars: operational excellence, security, reliability, performance efficiency, and cost optimization. The concept of elasticity represents a system’s ability to adapt to changes in demand by scaling resources up or down automatically. Therefore, the correct answer is B. You can learn more about the AWS Well-Architected Framework and its pillars from this page.
- (Topic 3)
Which AWS service is always provided at no charge?
Correct Answer:
B
AWS Identity and Access Management (IAM) is a web service that helps you securely control access to AWS resources. You can use IAM to create and manage AWS users and groups, and use permissions to allow and deny their access to AWS resources. IAM is always provided at no charge12. References: 1: AWS Identity and Access Management (IAM) - Amazon Web Services (AWS), 2: Which aws service is always provided at no charge? - Brainly.in
- (Topic 3)
A company needs a graph database service that is scalable and highly available.
Which AWS service meets these requirements?
Correct Answer:
D
The AWS service that meets the requirements of providing a graph database service that is scalable and highly available is Amazon Neptune. Amazon Neptune is a fast, reliable, and fully managed graph database service that supports property graph and RDF graph models. Amazon Neptune is designed to store billions of relationships and query the graph with milliseconds latency. Amazon Neptune also offers high availability and durability by replicating six copies of the data across three Availability Zones and continuously backing up the data to Amazon S35. Amazon Aurora, Amazon Redshift, and Amazon DynamoDB are other AWS services that provide relational or non- relational database solutions, but they do not support graph database models.
- (Topic 1)
A company is migrating a relational database server to the AWS Cloud. The company wants to minimize
administrative overhead of database maintenance tasks. Which AWS service will meet these requirements?
Correct Answer:
D
Amazon RDS is the AWS service that will meet the requirements of migrating a relational database server to the AWS Cloud and minimizing administrative overhead of database maintenance tasks. Amazon RDS is a fully managed relational database service that handles routine database tasks, such as provisioning, patching, backup, recovery, failure detection, and repair. Amazon RDS supports several database engines, such as MySQL, PostgreSQL, Oracle, SQL Server, and Amazon Aurora5.
- (Topic 3)
A company wants to grant users in one AWS account access to resources in another AWS account. The users do not currently have permission to access the resources.
Which AWS service will meet this requirement?
Correct Answer:
B
IAM roles are a way to delegate access to resources in different AWS accounts. IAM roles allow users to assume a set of permissions for a limited time without having to create or share long-term credentials. IAM roles can be used to grant cross- account access by creating a trust relationship between the accounts and specifying the permissions that the role can perform. Users can then switch to the role and access the resources in the other account using temporary security credentials provided by the
role. References: Cross account resource access in IAM, IAM tutorial: Delegate access across AWS accounts using IAM roles, How to Enable Cross-Account Access to the AWS Management Console