Which responsibility belongs to AWS when a company hosts its databases on Amazon EC2 instances?
Database backups
Database software patches
Operating system patches
Operating system installations.
Answer is Operating system installations.
When a company hosts its databases on Amazon EC2 instances, AWS is responsible for providing the underlying infrastructure and managing the physical hardware of the EC2 instances. However, the responsibility for tasks related to the software and data stored within the instances is typically the responsibility of the customer.
Therefore, among the options provided, the responsibility that belongs to AWS when a company hosts its databases on Amazon EC2 instances is option D, operating system installations. AWS provisions and manages the underlying operating system for EC2 instances, ensuring that it is installed and ready for customer use.
Question 62
An online retail company wants to migrate its on-premises workload to AWS. The company needs to automatically handle a seasonal workload increase in a cost- effective manner.
Which AWS Cloud features will help the company meet this requirement? (Choose two.)
Cross-Region workload deployment
Pay-as-you-go pricing
Built-in AWS CloudTrail audit capabilities
Auto Scaling policies
Centralized logging
Answers are;
B. Pay-as-you-go pricing
D. Auto Scaling policies
B. Pay-as-you-go pricing: With pay-as-you-go pricing, the company can scale its resources up or down based on demand during the seasonal workload increase. This allows the company to pay only for the resources it uses, helping to optimize costs.
D. Auto Scaling policies: Auto Scaling allows the company to automatically adjust the number of resources based on demand. By setting up Auto Scaling policies, the company can define rules to automatically add or remove resources to match the workload. This ensures that the company can handle the seasonal workload increase efficiently while minimizing costs during periods of lower demand.
Question 63
A company wants to migrate to AWS and use the same security software it uses on premises. The security software vendor offers its security software as a service on AWS.
Where can the company purchase the security solution?
AWS Partner Solutions Finder
AWS Support Center
AWS Management Console
AWS Marketplace
Answer is AWS Marketplace
The AWS Marketplace is an online store that offers a wide selection of third-party software, including security solutions, that can be used on AWS. It provides a platform for customers to find, compare, and purchase software solutions that meet their specific needs. Vendors can list their software offerings on the AWS Marketplace, making it a convenient and centralized location for customers to discover and acquire the software they require.
Question 64
Which of the following are shared controls that apply to both AWS and the customer, according to the AWS shared responsibility model? (Choose two.)
Resource configuration management
Network data integrity
Employee awareness and training
Physical and environmental security
Replacement and disposal of disk drives
Answers are;
A. Resource configuration management
C. Employee awareness and training
Shared Controls – Controls which apply to both the infrastructure layer and customer layers, but in completely separate contexts or perspectives. In a shared control, AWS provides the requirements for the infrastructure and the customer must provide their own control implementation within their use of AWS services. Examples include:
1. Patch Management – AWS is responsible for patching and fixing flaws within the infrastructure, but customers are responsible for patching their guest OS and applications.
2. Configuration Management – AWS maintains the configuration of its infrastructure devices, but a customer is responsible for configuring their own guest operating systems, databases, and applications.
3. Awareness & Training - AWS trains AWS employees, but a customer must train their own employees.
A company wants to launch its workload on AWS and requires the system to automatically recover from failure.
Which pillar of the AWS Well-Architected Framework includes this requirement?
Cost optimization
Operational excellence
Performance efficiency
Reliability
Answer is Reliability
Reliability in the AWS Well-Architected Framework refers to the ability of a system to recover from infrastructure or service disruptions, as well as to dynamically acquire computing resources to meet demand. It emphasizes designing systems that can automatically handle failures and continue operating without manual intervention.
In this scenario, the company's requirement for automatic recovery from failure reflects the focus on building a reliable system that can withstand disruptions and maintain availability. By designing the workload to be resilient and implementing fault-tolerant architectures, the system can automatically recover and continue functioning even in the event of failures or disruptions.
A global company is building a simple time-tracking mobile app. The app needs to operate globally and must store collected data in a database. Data must be accessible from the AWS Region that is closest to the user.
What should the company do to meet these data storage requirements with the LEAST amount of operational overhead?
Use Amazon EC2 in multiple Regions to host separate databases
Use Amazon RDS cross-Region replication
Use Amazon DynamoDB global tables
Use AWS Database Migration Service (AWS DMS)
Answer is Use Amazon DynamoDB global tables
To meet the data storage requirements with the least amount of operational overhead, the company should use Amazon DynamoDB global tables. Amazon DynamoDB global tables provide a fully managed, multi-region, and multi-master database replication solution. With global tables, the company can replicate data across multiple AWS Regions, allowing the data to be accessed from the AWS Region closest to the user.
By using Amazon DynamoDB global tables, the company can achieve low-latency data access and high availability without the need to manage separate databases in multiple AWS Regions or set up complex replication mechanisms. DynamoDB takes care of the replication and data consistency across Regions, automatically handling failovers and ensuring that the data is available in the desired AWS Region.
Which controls does the customer fully inherit from AWS in the AWS shared responsibility model?
Patch management controls
Awareness and training controls
Physical and environmental controls
Configuration management controls
Answer is Physical and environmental controls
In the AWS shared responsibility model, the customer fully inherits physical and environmental controls from AWS. This means that AWS is responsible for the security and management of the underlying infrastructure, including the data centers, networking, and power systems. AWS implements stringent physical and environmental controls to ensure the security and availability of their infrastructure.
Which task is a customer's responsibility, according to the AWS shared responsibility model?
Management of the guest operating systems
Maintenance of the configuration of infrastructure devices
Management of the host operating systems and virtualization
Maintenance of the software that powers Availability Zones
Answer is Management of the guest operating systems
AWS is responsible for the security and maintenance of the underlying infrastructure, including the physical data centers, networking, and power systems. The customer, on the other hand, is responsible for managing the guest operating systems, which includes tasks such as applying patches, configuring security settings, and managing user access within the operating systems.
A company needs to deliver new website features quickly in an iterative manner to minimize the time to market.
Which AWS Cloud concept does this requirement represent?
Reliability
Elasticity
Agility
High availability
Answer is Agility
Agility refers to the ability to rapidly and easily adapt to changing business needs and market demands. In the context of AWS, it means having the ability to quickly deploy and scale resources, implement changes, and iterate on applications or services. By leveraging AWS services and features, companies can take advantage of the cloud's flexibility and automation capabilities to accelerate their development and deployment cycles, allowing them to bring new features and updates to market more efficiently.
Question 70
A company wants to increase its ability to recover its infrastructure in the case of a natural disaster.
Which pillar of the AWS Well-Architected Framework does this ability represent?
Cost optimization
Performance efficiency
Reliability
Security
Answer is Reliability
Reliability refers to the ability of a system to operate continuously and recover from failures, including natural disasters. It involves implementing strategies and mechanisms to ensure that applications and data are highly available, resilient, and can withstand disruptions.
In the context of disaster recovery, AWS offers various services and features such as multi-region deployment, automated backups, and replication capabilities to help organizations ensure the availability and recoverability of their infrastructure and data in the event of a natural disaster.