A system administrator supports an application in the cloud, which includes a restful API that receives an encrypted message that is passed to a calculator system. The administrator needs to ensure the proper function of the API using a new automation tool. Which of the following techniques would be BEST for the administrator to use to accomplish this requirement?
A. Functional testing
B. Performance testing
C. Integration testing
D. Unit testing
Correct Answer: A
Functional testing is a testing technique that involves testing the functionality of an application to ensure that it performs the intended tasks correctly. In this case, the API is expected to receive an encrypted message and pass it to a calculator system, so functional testing can help ensure that the API is working properly and is passing the message correctly to the calculator system. Other types of testing, such as performance testing, integration testing, and unit testing, may also be useful in some contexts, but functional testing is the most appropriate option for ensuring that the API is functioning properly.
A user reports a poor-quality remote VDI session. Which of the following should the help desk technician do FIRST to troubleshoot the issue?
A. Check the FAQ section of the vendor's documentation.
B. Ask the user if the client device or access location has changed.
C. Reboot the user's virtual desktop.
D. Request permission to log in to the device remotely.
Correct Answer: B
Asking the user if the client device or access location has changed is what the help desk technician should do first to troubleshoot poor-quality remote VDI (Virtual Desktop Infrastructure) session. VDI is a technology that allows users to access virtual desktops hosted on remote servers over a network or internet connection. VDI can provide users with flexibility, mobility, and security, but it may also introduce quality issues depending on various factors, such as: The client device: This is the device that users use to access their virtual desktops, such as a laptop, tablet, smartphone, etc. The client device can affect VDI quality by determining how well it can support and display virtual desktop applications and services, as well as how fast it can process and send data over a network or internet connection. The access location: This is where users access their virtual desktops from, such as home, office, public place, etc. The access location can affect VDI quality by determining how stable and secure their network or internet connection is, as well as how much latency or interference they may experience. Asking the user if these factors have changed can help to troubleshoot poor-quality remote VDI session by identifying any potential causes or sources of quality issues, as well as suggesting any possible solutions or alternatives.
Question 13:
A systems administrator needs to migrate email services to the cloud model that requires the least amount of administrative effort. Which of the following should the administrator select?
A. DBaaS
B. SaaS
C. IaaS
D. PaaS
Correct Answer: B
The cloud model that requires the least amount of administrative effort to migrate email services is software as a service (SaaS). SaaS is a cloud model that provides applications or software that are hosted and managed by a cloud provider and delivered to users over the internet. SaaS eliminates the need for installing, configuring, updating, or maintaining the software or its underlying infrastructure, as these tasks are handled by the cloud provider. The systems administrator only needs to subscribe to the email service and configure the user accounts and settings. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 1.0 Configuration and Deployment, Objective 1.4 Given a scenario, execute a provided deployment plan.
Question 14:
A systems administrator wants to ensure two VMs remain together on the same host. Which of the following must be set up to enable this functionality?
A. Affinity
B. Zones
C. Regions
D. A cluster
Correct Answer: A
Affinity is what must be set up to ensure two VMs remain together on the same host. Affinity is a feature that allows customers to specify preferences or requirements for placing VMs on certain hosts or clusters within a cloud environment. Affinity can help to improve performance, availability, compatibility, or security of VMs by ensuring they are located on optimal hosts or clusters. Affinity can also help to keep two VMs together on the same host by creating an affinity rule that binds them together.
Question 15:
A cloud solutions architect needs to determine the best strategy to deploy an application environment in production, given the following requirements:
1.
No downtime
2.
Instant switch to a new version using traffic control for all users
Which of the following deployment strategies would be the BEST solution?
A. Hot site
B. Blue-green
C. Canary
D. Rolling
Correct Answer: B
Blue-green is the best deployment strategy to deploy an application environment in production, given the requirements of no downtime and instant switch to a new version using traffic control for all users. Blue-green is a deployment strategy that involves having two identical environments, one running the current version of the application (blue) and one running the new version of the application (green). The traffic is directed to the blue environment by default, while the green environment is tested and verified. When the new version is ready to go live, the traffic is switched to the green environment using a router or load balancer, without any downtime or interruption. The blue environment can be kept as a backup or updated with the new version for future deployments.
A cloud administrator recently noticed that a number of files stored at a SaaS provider's file-sharing service were deleted. As part of the root cause analysis, the administrator noticed the parent folder permissions were modified last week. The administrator then used a test user account and determined the permissions on the files allowed everyone to have write access.
Which of the following is the best step for the administrator to take NEXT?
A. Identify the changes to the file-sharing service and document
B. Acquire a third-party DLP solution to implement and manage access
C. Test the current access permissions to the file-sharing service
D. Define and configure the proper permissions for the file-sharing service
Correct Answer: D
Permissions are rules or settings that determine what actions users can perform on files or resources in a system or service. Permissions can help control and restrict access to files or resources based on various criteria, such as user identity, role, group, or ownership. Defining and configuring the proper permissions for the file-sharing service is the best step for the administrator to take next after discovering that sales group members can access the financial application due to being part of the finance group and having write access to all files in the file-sharing service. Defining and configuring the proper permissions can prevent unauthorized or accidental access or modification of files or resources by limiting or granting access based on specific criteria. References: CompTIA Cloud+ Certification Exam Objectives, page 14, section 2.7
A company has developed a cloud-ready application. Before deployment, an administrator needs to select a deployment technology that provides a high level of portability and is lightweight in terms of footprint and resource requirements.
Which of the following solutions will be BEST to help the administrator achieve the requirements?
A. Containers
B. Infrastructure as code
C. Desktop virtualization
D. Virtual machines
Correct Answer: A
Containers are a type of deployment technology that packages an application and its dependencies into a lightweight and portable unit that can run on any platform or environment. Containers can provide a high level of portability and are lightweight in terms of footprint and resource requirements, as they do not need a full operating system or hypervisor to run. Containers can also enable faster and easier deployment, scaling, and management of cloud-based applications. Containers are the best solution to help the administrator achieve the requirements for deploying a cloud- ready application. References: CompTIA Cloud+ Certification Exam Objectives, page 11, section 1.6
A cloud administrator is reviewing a new application implementation document. The administrator needs to make sure all the known bugs and fixes are applied, and unwanted ports and services are disabled.
Which of the following techniques would BEST help the administrator assess these business requirements?
A. Performance testing
B. Usability testing
C. Vulnerability testing
D. Regression testing
Correct Answer: C
Regression testing is a s/w testing practice that ensure an application still functions as expected after any code changes updates or improvements.
Usability testing is user-centric, getting input on how users use the application
Vulnerability testing evaluates security risks to reduce probability of getting hacked.
Question 19:
An organization is hosting a cloud-based web server infrastructure that provides web-hosting solutions. Sudden continuous bursts of traffic have caused the web servers to saturate CPU and network utilizations.
Which of the following should be implemented to prevent such disruptive traffic from reaching the web servers?
A. Solutions to perform NAC and DLP
B. DDoS protection
C. QoS on the network
D. A solution to achieve microsegmentation
Correct Answer: B
Distributed denial-of-service (DDoS) protection is a type of security solution that detects and mitigates DDoS attacks that aim to overwhelm or disrupt a system or service by sending large volumes of traffic from multiple sources. DDoS protection can prevent such disruptive traffic from reaching the web servers by filtering out malicious or unwanted traffic and allowing only legitimate traffic to pass through. DDoS protection can also help maintain the availability and functionality of web services and applications during a DDoS attack. References: CompTIA Cloud+ Certification Exam Objectives, page 14, section 2.7 Reference: https://blog.paessler.com/the-top-5-causes-of-sudden-network-spikes
A systems administrator is creating a playbook to run tasks against a server on a set schedule.
Which of the following authentication techniques should the systems administrator use within the playbook?
A. Use the server's root credentials
B. Hard-code the password within the playbook
C. Create a service account on the server
D. Use the administrator's SSO credentials
Correct Answer: C
A service account is a type of user account that is created for a specific service or application to run on a server or system. Creating a service account on the server is the best authentication technique to use within the playbook to run tasks against the server on a set schedule, as it can provide secure and consistent access to the server without exposing or hard-coding any sensitive credentials within the playbook. Creating a service account can also help manage and monitor the tasks and activities performed by the service or application on the server. References: CompTIA Cloud+ Certification Exam Objectives, page 14, section 2.7
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