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NEW QUESTION # 216
A systems administrator is asked to implement a new three-host cluster. The cloud architect specifies this should be a testing environment, and the budget is limited. The estimated resource consumption for each application is as follows:
- A. * Three public cloud hosts with four cores
* 120GB of RAM
* 100GB of storage
* 1Gbps - B. * Three public cloud hosts with six cores
* 80GB of RAM
* 180GB of storage
* 150Mbps - C. * Four public cloud hosts with four cores
* 140GB of RAM
* 200GB of storage - D. * Three public cloud hosts with six cores
* 80GB of RAM
* 1TB of storage
* 200Mbps
Answer: B
Explanation:
Explanation
The best option to implement a new three-host cluster with a limited budget for testing purposes is to use three public cloud hosts with six cores, 80GB of RAM, 180GB of storage, and 150Mbps of bandwidth each. This option will provide enough resources to run all the applications without exceeding their estimated consumption, while also minimizing the cost and complexity of the cluster. The other options either provide insufficient or excessive resources, which could affect the performance or cost of the cluster. Reference:
[CompTIA Cloud+ Certification Exam Objectives], Domain 1.0 Configuration and Deployment, Objective 1.2 Given a scenario involving requirements for deploying an application in the cloud, select an appropriate solution design.
NEW QUESTION # 217
When considering a public cloud implementation in a hospital, which of the following would the Chief Information Officer (CIO) have to check with respect to storing patient information?
- A. Offerings on the market for budgeting
- B. Laws and regulations
- C. Business need
- D. The board of directors
Answer: B
NEW QUESTION # 218
A company has a cloud infrastructure service, and the cloud architect needs to set up a DR site.
Which of the following should be configured in between the cloud environment and the DR site?
- A. Playbook
- B. Zoning
- C. Fallback
- D. Replication
Answer: C
NEW QUESTION # 219
A cloud administrator has configured a connection between two virtual private cloud environments at a public cloud provider that are each in different accounts. The administrator has configured the accounts correctly so they can connect to each other's resources. Both cloud environments have policies that allow anyone from 0.0.0.0/0 on TCP port 22. The following table shows the network configuration information:
However, the administrator is unable to establish an SSH connection from a server in
10.250.40.100 to 10.250.48.214. Which of the following is the MOST likely issue?
- A. The routing tables have not been updated correctly.
- B. The IP configuration on one of the servers is incorrect.
- C. The administrator does not have sufficient credentials.
- D. The network ACL is not configured to allow SSH access.
Answer: A
NEW QUESTION # 220
When the protocol HTTP is transmitted over SSL, which of the following ports is used by default?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 221
A cloud administrator is supporting an application that has several reliability issues. The administrator needs visibility into the performance characteristics of the application. Which of the following will MOST likely be used in a reporting dashboard?
- A. Data from files containing error messages from the application
- B. Metrics and time-series data measuring key performance indicators
- C. Detail log data from syslog files of the application
- D. Results from the last performance and workload testing
Answer: B
Explanation:
Explanation
The best answer is D. Metrics and time-series data measuring key performance indicators.
Metrics and time-series data are numerical values that represent the state and behavior of a system over time.
They can measure key performance indicators (KPIs) such as availability, latency, throughput, error rate, and resource utilization. Metrics and time-series data can help a cloud administrator to monitor, analyze, and troubleshoot the performance characteristics of an application .
Metrics and time-series data are most likely to be used in a reporting dashboard, because they can provide a clear and concise overview of the application's performance. A reporting dashboard is a graphical user interface that displays the most important information about a system or a process in a single view. A reporting dashboard can help a cloud administrator to:
Visualize the trends and patterns of the metrics and time-series data using charts, graphs, tables, or gauges .
Compare the actual performance of the application with the expected or desired performance based on the defined service level objectives (SLOs) or service level agreements (SLAs) .
Identify and diagnose any performance issues or anomalies that may affect the reliability of the application .
Communicate and report the performance status and results to the stakeholders or customers.
The other options are not as likely to be used in a reporting dashboard, because they are either too detailed, too outdated, or too irrelevant for measuring the performance characteristics of the application. For example:
Data from files containing error messages from the application (A) may help to identify and debug some specific errors or exceptions that occur in the application. However, they are not sufficient to measure the overall performance or reliability of the application. They are also too verbose and unstructured to be displayed in a reporting dashboard.
Results from the last performance and workload testing (B) may help to evaluate and optimize the performance of the application under different scenarios and conditions. However, they are not representative of the current or real-time performance of the application in production. They are also too static and outdated to be displayed in a reporting dashboard.
Detail log data from syslog files of the application may help to record and track the events and activities that happen in the application. However, they are not designed to measure the key performance indicators or metrics of the application. They are also too complex and voluminous to be displayed in a reporting dashboard.
NEW QUESTION # 222
A database analyst reports it takes two hours to perform a scheduled job after onboarding 10,000 new users to the system. The analyst made no changes to the scheduled job before or after onboarding the users. The database is hosted in an IaaS instance on a cloud provider. Which of the following should the cloud administrator evaluate to troubleshoot the performance of the job?
- A. The hypervisor logs, the memory utilization of the hypervisor host, and the network throughput of the hypervisor
- B. The laaS compute configurations, the capacity trend analysis reports, and the storage IOPS
- C. Migrating from laaS to on premises, the network traffic between on-premises users and the laaS instance, and the CPU utilization of the hypervisor host
- D. The scheduled job logs for successes and failures, the time taken to execute the job, and the job schedule
Answer: B
Explanation:
Explanation
To troubleshoot the performance of a scheduled job that takes two hours to run after onboarding 10,000 new users to a cloud-based system, the administrator should evaluate the IaaS compute configurations, the capacity trend analysis reports, and the storage IOPS. These factors can affect the performance of a database job in an IaaS instance on a cloud provider. The IaaS compute configurations include the CPU, memory, and network resources assigned to the instance. The capacity trend analysis reports show the historical and projected usage and demand of the resources. The storage IOPS (Input/Output Operations Per Second) measure the speed and performance of the disk storage. The administrator should check if these factors are sufficient, optimal, or need to be adjusted to improve the performance of the job.
NEW QUESTION # 223
Several suspicious emails are being reported from end users. Organizational email is hosted by a SaaS provider. Upon investigation, the URL in the email links to a phishing site where users are prompted to enter their domain credentials to reset their passwords. Which of the following should the cloud administrator do to protect potential account compromise?
- A. Notify users who received the email to reset their passwords regardless of whether they click on the URL.
- B. Change the encryption key for the entire organization and lock out all users from using email until the issue is remediated.
- C. Forward the email to the systems team distribution list and provide the compromised user list.
- D. Click on the URL link to verify the website and enter false domain credentials.
Answer: B
NEW QUESTION # 224
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. Vulnerability testing
- B. Regression testing
- C. Performance testing
- D. Usability testing
Answer: A
NEW QUESTION # 225
Which of the following tools would an administrator use to test connectivity of a server in the cloud?
- A. nslookup
- B. ping
- C. FTP
- D. netstat
Answer: B
NEW QUESTION # 226
A new development team requires workstations hosted in a PaaS to develop a new website. Members of the team also require remote access to the workstations using their corporate email addresses. Which of the following solutions will BEST meet these requirements? (Select TWO).
- A. Integrate identity services.
- B. Configure email account replication.
- C. Implement a VDI solution.
- D. Create a new directory service.
- E. Deploy new virtual machines.
- F. Migrate local VHD workstations.
Answer: A,E
Explanation:
Explanation
A Platform-as-a-Service (PaaS) is a cloud computing model that provides customers a complete cloud platform-hardware, software, and infrastructure-for developing, running, and managing applications without the cost, complexity, and inflexibility that often comes with building and maintaining that platform on-premises1.
To develop a new website using a PaaS, the development team needs to deploy new virtual machines (VMs) on the cloud platform. VMs are software emulations of physical computers that can run different operating systems and applications. By deploying new VMs, the development team can create a scalable and flexible environment for their website project, without having to invest in or manage physical hardware2.
To enable remote access to the workstations using their corporate email addresses, the development team needs to integrate identity services on the cloud platform. Identity services are services that provide authentication, authorization, and identity management for users and devices accessing cloud resources. By integrating identity services, the development team can use their corporate email addresses as single sign-on (SSO) credentials to access their workstations from any device and location, while ensuring security and compliance3.
The other options are not the best solutions for these requirements:
Configuring email account replication is not necessary for remote access to the workstations. Email account replication is a process of synchronizing email accounts across different servers or locations. It can provide backup and redundancy for email services, but it does not provide authentication or identity management for remote access4.
Implementing a Virtual Desktop Infrastructure (VDI) solution is not a PaaS solution. VDI is a technology that allows users to access virtual desktops hosted on a centralized server. VDI can provide remote access to desktop environments, but it requires additional hardware, software, and management costs that are not included in a PaaS model5.
Migrating local VHD workstations is not a PaaS solution. VHD stands for Virtual Hard Disk, which is a file format that represents a virtual hard disk drive. Migrating local VHD workstations means moving the virtual hard disk files from local storage to cloud storage. This can provide backup and portability for the workstations, but it does not provide a complete cloud platform for developing and running applications6.
Creating a new directory service is not necessary for remote access to the workstations. A directory service is a service that stores and organizes information about users, devices, and resources on a network. Creating a new directory service means setting up a new database and schema for storing this information. This can provide identity management and access control for the network, but it does not provide authentication or SSO for remote access.
NEW QUESTION # 227
A cloud engineer, who manages workloads in a public cloud environment, uses autoscaling to maintain availability of a critical application. During a recent burst in demands, the engineer received the following error alert:
LimitedlnstanceCapacity
Which of the following is MOST likely cause of the error?
- A. The autoscaling feature does not have permissions to create instances.
- B. The cloud account has had rights revoked to create instances.
- C. The cloud account has exhausted the number of instances quota.
- D. The cloud account has a misconfigured security group.
Answer: C
Explanation:
A quota is a limit on the number of resources that a cloud account can create or use in a public cloud environment. If the cloud account tries to create more instances than the quota allows, it will receive a LimitedInstanceCapacity error, indicating that there is not enough available capacity to fulfill the request
NEW QUESTION # 228
An administrator needs to remotely change the computer name of a host server. The server does not have a GUI. Which of the following should the administrator use?
- A. VNC
- B. RDP
- C. KVM
- D. PKI
Answer: B
NEW QUESTION # 229
A cloud administrator is monitoring a database system and notices an unusual increase in the read operations, which is causing a heavy load in the system. The system is using a relational database and is running in a VM. Which of the following should the administrator do to resolve the issue with minimal architectural changes?
- A. Implement the database system using a DBaaS.
- B. Use a cache system to store reading operations.
- C. Create a secondary standby database instance.
- D. Migrate the relational database to a NoSQL database.
Answer: B
Explanation:
The best way to resolve the issue of an unusual increase in the read operations that is causing a heavy load in the system that is using a relational database and is running in a VM is to use a cache system to store reading operations. A cache system is a type of storage system that temporarily stores frequently accessed or recently used data in memory for faster retrieval. A cache system can reduce the load on the database system by serving the read requests from the cache instead of querying the database every time. Reference: [CompTIA Cloud+ Certification Exam Objectives], Domain 4.0 Troubleshooting, Objective 4.3 Given a scenario, troubleshoot capacity issues within a cloud environment.
NEW QUESTION # 230
Which of the following is included in a compliance audit?
- A. Analyzing the provider release calendar
- B. Analyzing chargeback agreements
- C. Analyzing cloud provider Service Level Agreements (SLAs)
- D. Analyzing identity management and access controls
Answer: D
NEW QUESTION # 231
A systems administrator is troubleshooting performance issues with a Windows VDI environment. Users have reported that VDI performance is very slow at the start of the workday, but the performance is fine during the rest of the day. Which of the following is the MOST likely cause of the issue? (Select TWO).
- A. Affinity rule
- B. License issues
- C. CPU oversubscription
- D. RAM usage
- E. Insufficient GPI-J resources
- F. Disk I/O limits
Answer: C,F
Explanation:
Explanation
The most likely causes of the issue are A. Disk I/O limits and C. CPU oversubscription. Disk I/O limits are the maximum amount of input/output operations per second (IOPS) that a disk can handle. CPU oversubscription is the ratio of virtual CPUs to physical CPUs in a host. Both of these factors can affect the performance of a VDI environment, especially during peak hours when many users log in and launch applications.
Disk I/O limits can cause slow boot times, application lags, and cursor freezes for VDI users12. To avoid this issue, it is recommended to use flash storage or SSDs for VDI workloads, as they have much higher IOPS than traditional hard disk drives31. It is also important to monitor the disk performance and adjust the disk size and configuration as needed1.
CPU oversubscription can also cause performance degradation for VDI users, as it can lead to CPU contention and increased latency42. To avoid this issue, it is recommended to limit the CPU oversubscription ratio to a reasonable level, such as 4:1 or lower42. It is also important to monitor the CPU utilization and balance the load across hosts as needed4.
The other options are less likely to cause the issue. Affinity rules are used to specify which virtual machines should run on which hosts or which virtual machines should not run on the same host. They are not related to the performance of VDI workloads. RAM usage can affect the performance of VDI workloads, but it is usually not a major factor during peak hours, as most users do not consume a lot of memory when they log in or launch applications. Insufficient GPU resources can affect the performance of VDI workloads that require high graphics processing, such as video streaming or 3D rendering, but they are not relevant for most VDI users.
License issues can affect the availability of VDI workloads, but they are not related to the performance of VDI workloads.
NEW QUESTION # 232
A cloud administrator recently deployed an update to the network drivers of several servers. Following the update, one of the servers no longer responds to remote login requests. The cloud administrator investigates the issue and gathers the following information:
The cloud management console shows the VM is running and the CPU and memory utilization is at or near 0%.
The cloud management console does not show an IP address for that server.
A DNS lookup shows the hostname resolves to an IP address.
The server is a member of the same security group as the others.
The cloud administrator is able to log in remotely to the other servers without issue.
Which of the following is the MOST likely cause of the server being unavailable?
- A. The ACL policy for the server was updated as part of the server reboot, preventing login access.
- B. The update caused an increase in the output to the logs, and the server is too busy to respond.
- C. The network driver updates did not apply successfully, and the interface is in a down state.
- D. The server was assigned a new IP address, and DNS entry for the server name was not updated.
Answer: D
NEW QUESTION # 233
An organization's web server farm, which is hosted in the cloud with DNS load balancing, is experiencing a spike in network traffic. This has caused an outage of the organization's web server infrastructure.
Which of the following should be implemented to prevent this in the future as a mitigation method?
- A. Enable DLP
- B. Deploy a vADC appliance
- C. Enable DNSSEC
- D. Configure microsegmentation
Answer: B
Explanation:
Explanation
A virtual application delivery controller (vADC) is a type of network device or software that provides load balancing, security, and optimization for web applications or services. Deploying a vADC appliance can help prevent an outage of the organization's web server infrastructure due to a spike in network traffic, as it can distribute the traffic across multiple web servers and improve the performance and availability of web applications or services. Deploying a vADC appliance can also provide mitigation methods such as DDoS protection, SSL offloading, and caching to enhance the security and efficiency of web traffic delivery.
References: CompTIA Cloud+ Certification Exam Objectives, page 15, section 2.8
NEW QUESTION # 234
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