- (Topic 4)
An organization is developing a new online product. The product must:
• Minimize organizational infrastructure and comply with security standards.
• Minimize organizational compliance efforts.
• Focus on application development and increase speed to market.
Which of the following should the organization consider, given the requirements listed above?
Correct Answer:
A
One possible answer is:
A. Use cloud-native serverless services.
Cloud-native serverless services are a type of cloud computing that allows developers to build and run applications without having to manage servers, infrastructure, or scaling. Cloud-native serverless services can help the organization meet the requirements listed above, as they can:
✑ Minimize organizational infrastructure and comply with security standards. Cloud- native serverless services are fully managed by the cloud provider, which means the organization does not have to provision, configure, or maintain any servers or infrastructure. The cloud provider also handles the security aspects of the serverless environment, such as encryption, authentication, authorization, patching, and monitoring. The organization can focus on developing the application logic and rely on the cloud provider to meet the security standards12.
✑ Minimize organizational compliance efforts. Cloud-native serverless services can also help the organization reduce the compliance burden, as they can leverage the compliance certifications and attestations of the cloud provider. The cloud provider can ensure that the serverless environment complies with various regulations and standards, such as PCI DSS, HIPAA, GDPR, ISO 27001, etc. The organization can inherit the compliance posture of the cloud provider and avoid the hassle of auditing and validating their own infrastructure12.
✑ Focus on application development and increase speed to market. Cloud-native serverless services can also enable the organization to accelerate the development and delivery of their online product, as they can write code using their preferred programming languages and frameworks, and deploy it quickly and easily to the serverless environment. The serverless environment can automatically scale up or down based on the demand, ensuring high availability and performance. The organization can also integrate serverless services with other cloud services, such as databases, storage, analytics, etc., to create a full- stack application12.
- (Topic 1)
A cloud administrator checked out the deployment scripts used to deploy the sandbox environment to a public cloud provider. The administrator modified the script to add an application load balancer in front of the web- based front-end application. The administrator next used the script to recreate a new sandbox environment successfully, and the application was then using the new load balancer.
The following week, a new update was required to add more front-end servers to the sandbox environment. A second administrator made the necessary changes and checked out the deployment scripts. The second administrator then ran the script, but the application load balancer was missing from the new deployment.
Which of the following is the MOST likely reason for this issue?
Correct Answer:
B
Checking in and committing are actions that save and update the changes made to a file or code in a version control system or repository. Checking in and committing can help track and synchronize the changes made by different users or developers working on the same file or code. The deployment script changes made by the first administrator were not checked in and committed is the most likely reason for the issue of the application load balancer being missing from the new deployment after a second administrator made some changes and ran the script. If the first administrator did not check in and commit the changes made to add an application load balancer to the script, then those changes would not be reflected or available in the latest version of the script used by the second administrator. References: CompTIA Cloud+ Certification Exam Objectives, page 13, section 2.5
- (Topic 4)
A systems administrator is attempting to gather information about services and resource utilization on VMs in a cloud environment. Which of the following will best accomplish this objective?
Correct Answer:
E
Performance monitoring is a technique that collects and analyzes data about the services and resource utilization on VMs in a cloud environment. Performance monitoring can help the systems administrator to gather information about the CPU, memory, disk, network, and application performance of the VMs, as well as identify any bottlenecks, errors, or anomalies that may affect the cloud service quality. Performance monitoring can be implemented using various tools or agents that can collect and report the performance metrics from the VMs to a centralized dashboard or console. Performance monitoring can also help the systems administrator to optimize, troubleshoot, and plan the cloud resources and services. References: CompTIA Cloud+ CV0-003 Certification Study Guide, Chapter 5, Objective 5.1: Given a scenario, monitor cloud resources and services.
- (Topic 4)
A systems administrator is deploying a new version of a website. The website is deployed in the cloud using a VM cluster. The administrator must then deploy the new version into one VM first. After a period of time, if there are no issues detected, a second VM will be updated. This process must continue until all the VMS are updated. Which of the following upgrade methods is being implemented?
Correct Answer:
C
The upgrade method that is being implemented by the systems administrator is rolling. A rolling upgrade is a type of upgrade that applies the new version of a software or service to a subset of nodes or instances at a time, while the rest of the nodes or instances continue to run the old version. This way, the upgrade can be performed gradually and incrementally, without causing downtime or disruption to the entire system. A rolling upgrade can also help to monitor and test the new version for any issues or errors, and roll back to the old version if needed12.
A canary upgrade is a type of upgrade that applies the new version of a software or service to a small and selected group of users or customers, before rolling it out to the rest of the population. This way, the upgrade can be evaluated for its performance, functionality, and feedback, and any problems or bugs can be fixed before affecting the majority of users or customers34.
A blue-green upgrade is a type of upgrade that involves having two identical environments, one running the old version (blue) and one running the new version (green) of a software or service. The traffic is switched from the blue environment to the green environment once the new version is ready and tested. This way, the upgrade can be performed quickly and seamlessly, without any downtime or risk of failure. The blue environment can also serve as a backup in case of any issues with the green environment5 .
A staging upgrade is a type of upgrade that involves having a separate environment that mimics the production environment, where the new version of a software or service is deployed and tested before moving it to the production environment. This way, the upgrade can be verified and validated for its compatibility, security, and quality, and any defects or errors can be resolved before affecting the live system .
- (Topic 4)
A cloud engineer is responsible for a legacy web application that runs on an on-premises VM environment. The VM environment is approaching end of life. The engineer needs to migrate the web application to the cloud as quickly as possible because the VM environment has the following limitations:
• The VM environment has a single IOGB disk.
• The VM environment still uses 10Mbps, which leaves a 100Mbps WAN connection underutilized.
• No installation media is available.
Which of the following is the best way to migrate the web application to the cloud?
Correct Answer:
A
A VM import connector is a tool that allows you to import virtual machines from your on-premises environment into the cloud using a graphical user interface. This is the fastest and easiest way to migrate a legacy web application without requiring installation media or changing the configuration of the VM. The VM import connector can also handle the disk size and network bandwidth limitations of the on-premises VM environment. References: EC2 VM Import Connector | AWS News Blog, Import a VMware Virtual Machine to Oracle Cloud Infrastructure, CompTIA Cloud+ Certification Exam Objectives, Domain 2.0: Deployment, Objective 2.1: Given a scenario, execute and implement solutions using appropriate cloud migration tools and methods.
