A company has a web application running in an on-premises environment that needs to be migrated to the cloud. The company wants to implement a solution that maximizes scalability, availability, and security, while requiring no infrastructure administration.
Which of the following services would be BEST to meet this goal?
A. A PaaS solution
B. A hybrid solution
C. An laaS solution
D. A SaaS solution
Correct Answer: A
A PaaS solution, or platform as a service, is a cloud computing service that provides a complete, ready-to-use, cloud-hosted platform for developing, running, maintaining and managing applications1. A PaaS solution would meet the company's goal of maximizing scalability, availability, and security, while requiring no infrastructure administration, because: Scalability: A PaaS solution can automatically scale up or down the resources needed to run the application based on the demand and traffic. The company does not need to worry about provisioning or managing servers, storage, network, or load balancers23. Availability: A PaaS solution can ensure high availability and reliability of the application by replicating it across multiple regions and zones. The company does not need to worry about backup, recovery, or failover23. Security: A PaaS solution can provide built-in security features such as encryption, authentication, authorization, and firewall. The company does not need to worry about installing or updating security patches or software23. No infrastructure administration: A PaaS solution can abstract away the underlying infrastructure and hardware from the company. The company only needs to focus on developing and deploying the application code and data. The PaaS provider takes care of the rest23. A hybrid solution (B) is a cloud computing service that combines on-premises and cloud resources. It may offer some benefits such as flexibility and cost optimization, but it would not meet the company's goal of requiring no infrastructure administration. The company would still need to manage and maintain the on-premises part of the solution4. An IaaS solution ? or infrastructure as a service, is a
Question 12:
A company's website development team made some code changes to implement a new feature. The development team published the changes via a code pipeline and verified that the feature is in the development environment. However, the testing team is unable to see the new feature when executing the test plan.
Which of the following steps should the cloud administrator take first to identify the cause of the issue?
A. Roll back the development pipeline to revert and reapply the changes.
B. Confirm that the deployment has been completed in the QA environment.
C. Switch the application load balancer to use the blue environment
D. Update the policies on the CASB to allow access to the test environment.
Correct Answer: B
Question 13:
A web application server farm has the following configuration:
1.
16vCPU
2.
128GB of memory
3.
512GB of local storage
The performance-testing team reports the web application farm is unable to process requests beyond 5,000 concurrent connections. Which of the following should be performed?
A. Review the memory capacity parameters in the web server
B. Restart and redeploy the application.
C. Restart the performance-testing tool.
D. Review the application configuration
Correct Answer: D
Question 14:
An organization hosts an ERP database in on-premises infrastructure. A recommendation has been made to migrate the ERP solution to reduce operational overhead in the maintenance of the data center.
Which of the following should be considered when migrating this on-premises database to DBaaS?
A. Database application version compatibility Database IOPS values Database storage utilization
B. Physical database server CPU cache value Physical database server DAS type Physical database server network I/O
C. Database total user count Database total number of tables Database total number of storage procedures
D. Physical database server operating system Physical database server memory configuration Physical database server CPU frequency
Correct Answer: A
These considerations are relevant when migrating to DBaaS. Ensuring compatibility with the database application version is crucial to ensure that the application works seamlessly with the DBaaS offering. Database IOPS (Input/Output Operations Per Second) values and storage utilization are important performance metrics to assess and optimize for efficient operation in the DBaaS environment.
Question 15:
A public cloud administrator needs to implement a mechanism to monitor the expense of the company's cloud resources. Which of the following options will allow the administrator to execute this task fastest way and with minimal effort?
A. Set up daily expense reports with the cloud provider.
B. Enable custom notifications for exceeding budget thresholds.
C. Use the API to collect expense information from cloud resources.
D. Implement a financial tool to monitor cloud resource expenses.
Correct Answer: D
Question 16:
A technician deployed a VM with NL-SAS storage to host a critical application. Two weeks later, users have begun to report high application latency. Which of the following is the BEST action to correct the latency issue?
A. Increase the capacity of the data storage.
B. Migrate the data to SAS storage.
C. Increase the CPU of the VM.
D. Migrate the data to flash storage.
Correct Answer: D
The correct answer is D. Migrate the data to flash storage. Flash storage is a type of solid- state storage that uses flash memory to store data. Flash storage has much faster performance and lower latency than NL-SAS storage, which is a type of hard disk drive that uses nearline serial attached SCSI interface. According to the web search results, NL-SAS devices have much higher response times than flash devices123. Therefore, migrating the data to flash storage can reduce the application latency and improve the user experience. Increasing the capacity of the data storage, migrating the data to SAS storage, or increasing the CPU of the VM are not likely to solve the latency issue, as they do not address the root cause of the problem, which is the slow performance of NL-SAS storage. For more information on flash storage and its benefits, you can refer to the Dell EMC Unity: FAST Technology Overview2 or the Dell Technologies website4.
Question 17:
A company that requires full administrative control at the OS level is considering the use of public cloud services. Which of the following service models would BEST fit the company's requirements?
A. SaaS
B. DBaaS
C. PaaS
D. laaS
Correct Answer: D
laaS (Infrastructure as a Service) is a public cloud service model that provides access to fundamental compute, network, and storage resources on demand over the public Internet or through dedicated connections. Customers can provision and configure these resources according to their needs, and they have full administrative control at the OS level. This means that customers can install, update, and manage any software or applications they want on the cloud servers, as well as apply their own security and compliance policies. laaS is suitable for companies that require high flexibility and customization of their cloud infrastructure, as well as scalability and cost-efficiency.
Question 18:
A web-application company recently released some new marketing promotions without notifying the IT staff. The systems administrator has since been noticing twice the normal traffic consumption every two hours for the last three hours in the container environment.
Which of the following should the company implement to accommodate the new traffic?
A. A firewall
B. Switches
C. Ballooning
D. Autoscaling
Correct Answer: D
According to the CompTIA Cloud+ Study Guide1, autoscaling is "the ability to automatically increase or decrease the number of resources allocated to a cloud service based on the current demand". This means that autoscaling can help a
cloud environment adjust to changes in traffic and workload, such as the ones caused by the new marketing promotions.
Ballooning, on the other hand, is "a technique used by hypervisors to reclaim unused memory from a virtual machine and allocate it to another virtual machine that needs more memory". This means that ballooning can help optimize the
memory usage of a cloud environment, but it does not affect the number of resources allocated to a cloud service. A firewall is "a device or software that monitors and controls the incoming and outgoing network traffic based on predefined
rules". This means that a firewall can help protect a cloud environment from unauthorized access and malicious attacks, but it does not affect the number of resources allocated to a cloud service. Switches are "devices that connect multiple
devices on a network and forward data packets between them". This means that switches can help improve the network performance and connectivity of a cloud environment, but they do not affect the number of resources allocated to a cloud
service.
Based on this information, I think the best answer to your question is D. Autoscaling. Autoscaling can help the company accommodate the new traffic by automatically increasing or decreasing the number of resources allocated to their web-
application service based on the current demand. This can also help reduce costs and improve performance and availability.
I hope this helps you understand the concept of autoscaling better. If you want to learn more about CompTIA Cloud+, you can check out some of these resources:
CompTIA Cloud+ : Cloud High Availability and Scaling: A video course that covers the topics of high availability and scaling in cloud environments, including autoscaling, horizontal scaling, vertical scaling and cloud bursting. Cloud+ (Plus)
Certification | CompTIA IT Certifications: The official website of CompTIA Cloud+, where you can find exam details, preparation materials, renewal information and more.
Question 19:
Following the deployment of a new VM, a cloud engineer notices the backup platform has not added the machine to the appropriate job. The backup platform uses a text-based variable for job configuration. This variable is based on the RPO requirements for the workload.
Which of the following did the cloud engineer forget to configure when deploying the virtual machine?
A. Tags
B. RPO
C. RTO
D. Server name
E. Template
Correct Answer: A
Tags are key-value pairs that can be applied to cloud resources to organize, categorize, and filter them. Tags can also be used to assign resources to backup jobs based on their RPO requirements. The cloud engineer forgot to configure the
appropriate tag for the new VM that matches the text-based variable of the backup platform. Therefore, the backup platform did not add the VM to the correct job.
References: Tags and labels | Cloud Storage | Google Cloud, CompTIA Cloud+ Certification Exam Objectives, Domain 4.0: Operations and Support, Objective 4.3: Given a scenario, apply the appropriate methods for cost control in a cloud
environment.
Question 20:
A cloud engineer is troubleshooting RSA key-based authentication from a local computer to a cloud-based server, which is running SSH service on a default port. The following file permissions are set on the authorized keys file:
-rw-rw-rw-1 ubuntu ubuntu 391 Mar S 01:36 authorized _ keys
Which of the following security practices are the required actions the engineer Should take to gain access to the server? (Select TWO).
A. Fix the file permissions with execute permissions to the owner of the file.
B. Open port 21 access for the computer's public IP address.
C. Fix the file permissions with read-only access to the owner Of the file.
D. Open port 22 access for the computer's public IP address.
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