CV0-003 Free Practice Test

- (Topic 2)
A systems administrator has finished installing monthly updates to servers in a cloud environment. The administrator notices certain portions of the playbooks are no longer functioning. Executing the playbook commands manually on a server does not work as well. There are no other reports of issues.
Which of the following is the MOST likely cause of this issue?

1. A. Change management failure
2. B. Service overload
3. C. Patching failure
4. D. Job validation issues
5. E. Deprecated features

Correct Answer: E
Deprecated features are features that are no longer supported or recommended by the software vendor or provider. They may be removed or replaced by newer features in future updates or versions. If a playbook relies on deprecated features, it may stop functioning after an update or patch is applied to the software. The administrator should check the release notes or documentation of the software to identify and replace any deprecated features in the playbook.

- (Topic 3)
A cloud engineer is performing updates to an application and needs to gracefully stop any new transactions from processing before the updates can be applied. Which of the following steps should the engineer take?

1. A. Enable maintenance mode from the application dashboard
2. B. Wait until after business hours to conduct the change when the system is not in use
3. C. Run a kill command on the system to stop the application services
4. D. Use a load balancer to redirect traffic to other systems serving the application

Correct Answer: A
The best way to gracefully stop any new transactions from processing before applying updates to an application is to enable maintenance mode from the application dashboard. Maintenance mode is a feature that allows temporarily disabling the access or functionality of an application or service while performing maintenance tasks, such as updates, patches, or backups. It also displays a message or notification to the users or clients informing them about the maintenance and the expected downtime. This method will prevent any new transactions from being initiated or interrupted while the updates are being applied. Reference: [CompTIA Cloud+ Certification Exam Objectives], Domain 3.0 Maintenance, Objective 3.1 Given a scenario, apply appropriate changes to meet performance, security and user requirements.

- (Topic 1)
A systems administrator has migrated an internal application to a public cloud. The new web server is running under a TLS connection and has the same TLS certificate as the internal application that is deployed. However, the IT department reports that only internal users who are using new versions of the OSs are able to load the application home page.
Which of the following is the MOST likely cause of the issue?

1. A. The local firewall from older OSs is not allowing outbound connections
2. B. The local firewall from older OSs is not allowing inbound connections
3. C. The cloud web server is using a self-signed certificate that is not supported by older browsers
4. D. The cloud web server is using strong ciphers that are not supported by older browsers

Correct Answer: D
Ciphers are algorithms or methods that are used to encrypt and decrypt data for secure communication. Strong ciphers are ciphers that use high-level encryption techniques and keys to provide stronger security and protection for data. The cloud web server is using strong ciphers that are not supported by older browsers is the most likely cause of the issue of only internal users who are using new versions of the OSs being able to load the application home page after the administrator configured a redirect from HTTP to HTTPS on the web server. Older browsers may not support the strong ciphers used by the cloud web server for HTTPS connections, which can result in a failure to establish a secure connection and load the application home page. References: CompTIA Cloud+ Certification Exam Objectives, page 15, section 2.8

- (Topic 1)
A cloud administrator is planning to migrate a globally accessed application to the cloud.
Which of the following should the cloud administrator implement to BEST reduce latency for all users?

1. A. Regions
2. B. Auto-scaling
3. C. Clustering
4. D. Cloud bursting

Correct Answer: A
Regions are geographical locations or areas where cloud service providers have data centers or facilities that host their cloud resources or services. Regions can help reduce latency for all users when deploying a globally accessed application to the cloud, as they can enable faster and closer access to the cloud resources or services based on the user’s physical location. Regions can also improve performance and availability, as they can provide redundancy and load balancing by distributing the workload across multiple locations. References: CompTIA Cloud+ Certification Exam Objectives, page 15, section 2.8

- (Topic 1)
A SAN that holds VM files is running out of storage space.
Which of the following will BEST increase the amount of effective storage on the SAN?

1. A. Enable encryption
2. B. Increase IOPS
3. C. Convert the SAN from RAID 50 to RAID 60
4. D. Configure deduplication

Correct Answer: D
Deduplication is a type of data compression technique that eliminates redundant or duplicate data blocks or segments in a storage system or device. Configuring deduplication can help increase the amount of effective storage on a SAN that holds VM files and is running out of storage space, as it can reduce the storage space consumption and increase the storage space utilization by storing only unique data blocks or segments. Configuring deduplication can also improve performance and efficiency, as it can speed up data transfer and backup processes and save network bandwidth and power consumption. References: CompTIA Cloud+ Certification Exam Objectives, page 9, section 1.4