A system administrator has provisioned a new web server. Which of the following, in combination, form the best practice to secure the server's OS? (Choose three.)
Answer(s): A,F,G
https://phoenixnap.com/kb/server-security-tips
A technician needs to deploy two virtual machines in preparation for the configuration of a financial application next week. Which of the following cloud deployment models should the technician use?
Answer(s): B
The technician should use the IaaS (Infrastructure-as-a-Service) cloud deployment model to provision the virtual machines. IaaS provides virtualized computing resources, such as servers, storage, and networking, on which the user can deploy and manage their own applications and operating systems. The technician can then install the financial application on the virtual machines and configure them as required.
https://searchcloudcomputing.techtarget.com/definition/Platform-as-a-Service-PaaS
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?
Answer(s): A
A) Functional testing would be the BEST technique for the administrator to use in order to ensure the proper function of the API using a new automation tool. 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.
https://www.softwaretestinghelp.com/the-difference-between-unit-integration-and-functional-testing/
A cloud solutions architect needs to determine the best strategy to deploy an application environment in production, given the following requirements:* No downtime* Instant switch to a new version using traffic control for all usersWhich of the following deployment strategies would be the BEST solution?
The BEST deployment strategy to meet the given requirements is the "Blue-green" deployment.In a blue-green deployment, two identical environments are maintained, one for production (blue) and the other for the next version or release (green). All production traffic is initially directed to the blue environment, while the green environment is prepared and tested thoroughly without affecting the production environment. Once the green environment is ready, the traffic is switched instantly from the blue to the green environment using traffic control, with no downtime or impact on users.
https://thenewstack.io/deployment-strategies/
A cloud security analyst is implementing a vulnerability scan of the web server in the DMZ, which is running in an IaaS compute instance. The default inbound firewall settings are as follows:Which of the following will provide the analyst with the MOST accurate report?
Answer(s): D
https://docs.tenable.com/nessus/Content/NessusCredentialedChecks.htm
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