- (Topic 3)
A systems administrator is planning a penetration test for company resources that are hosted in a public cloud. Which of the following must the systems administrator do FIRST?
Correct Answer:
D
The first thing that the systems administrator must do before planning a penetration test for company resources that are hosted in a public cloud is to consult the cloud services provider’s policies and guidelines. Penetration testing is a type of security assessment that involves simulating an attack on a system or network to identify vulnerabilities and weaknesses. However, not all cloud services providers allow penetration testing on their platforms, or they may have specific rules and requirements for conducting such tests. The systems administrator should check the cloud services provider’s policies and guidelines and obtain their permission and approval before performing any penetration testing. Reference: CompTIA Cloud+ Certification Exam Objectives, Domain 2.0 Security, Objective 2.4 Given a scenario, implement security automation and orchestration in a cloud environment.
- (Topic 2)
All of a company's servers are currently hosted in one cloud MSP. The company created a new cloud environment with a different MSP. A cloud engineer is now tasked with preparing for server migrations and establishing connectivity between clouds. Which of the following should the engineer perform FIRST?
Correct Answer:
C
Creating a VPN tunnel is the first action that the engineer should perform to
prepare for server migrations and establish connectivity between clouds. A VPN (Virtual Private Network) tunnel is a secure and encrypted connection that allows data to be transferred between two networks or locations over the public internet. Creating a VPN tunnel can enable communication and interoperability between different cloud environments, as well as protect data from interception or modification during migration.
- (Topic 4)
A web consultancy group currently works in an isolated development environment. The group uses this environment for the creation of the final solution, but also for showcasing it to customers, before commissioning the sites in production. Recently, customers of newly commissioned sites have reported they are not receiving the final product shown by the group, and the website is performing in unexpected ways. Which of the following additional environments should the group adopt and include in its process?
Correct Answer:
C
The answer is C. Leverage a staging environment that is tightly controlled for showcasing. A staging environment is a replica of the production environment that is used for testing and demonstrating the final product before deployment. A staging environment can help the web consultancy group avoid the issues reported by the customers, such as mismatched expectations and unexpected behavior, by ensuring that the product is shown in a realistic and consistent setting. A staging environment can also help the group catch and fix any bugs or errors before they affect the live site.
Some possible sources of information about web development environments are:
✑ 7 Web Development Best Practices: This page provides some general tips and best practices for web development, such as planning, accessibility, UX/UI, standards, code quality, compatibility, and security.
✑ Web Development Best Practices (Building Real-World Cloud Apps with Azure):
This page explains some specific best practices for web development in the cloud environment, such as stateless web tier, session state management, CDN caching, and async programming.
✑ Web Development Best Practices: This page lists some resources for learning web
development best practices in ASP.NET, such as async and await, building real- world cloud apps with Azure, and hands-on labs.
- (Topic 1)
A systems administrator would like to reduce the network delay between two servers.
Which of the following will reduce the network delay without taxing other system resources?
Correct Answer:
A
The maximum transmission unit (MTU) is the largest size of a packet or frame that can be sent over a network. Decreasing the MTU size on both servers can reduce the network delay between them, as it can reduce the fragmentation and reassembly of packets, improve the transmission efficiency, and avoid packet loss or errors. Decreasing the MTU size can also avoid taxing other system resources, as it does not require additional CPU, memory, or disk resources. References: CompTIA Cloud+ Certification Exam Objectives, page 16, section 3.2
Reference: https://cseweb.ucsd.edu/~calder/papers/HPDC-01-DynComp.pdf
- (Topic 2)
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?
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.
