An administrator needs to adhere to the following requirements when moving a customer’s data to the cloud:-The new service must be geographically dispersed.-The customer should have local access to data.-Legacy applications should be accessible.Which of the following cloud deployment models is most suitable?
Answer(s): C
A hybrid cloud deployment model combines on-premises infrastructure (or a private cloud) with public cloud services. It is the most suitable option when: Geographically dispersed data storage is needed, as a hybrid model can leverage both local infrastructure and globally dispersed cloud resources. The customer requires local access to data, which can be provided via on-premises infrastructure. Legacy applications need to be accessible, which can be maintained in an on-premises or private environment while taking advantage of the scalability of the public cloud for other workloads.
A company’s VMs that are created using the noncritical application tag are automatically shut down at 5:00 p.m. using a cronjob. Which of the following actions would allow a cloud engineer to stop all unresponsive instances with the least effort in case the automation fails?
Using the cloud provider command line to stop instances based on their tags allows the cloud engineer to target only the instances tagged as "noncritical application" and shut them down efficiently with minimal effort. This approach is both quick and precise, as it only affects the relevant instances, rather than manually filtering through all instances or relying on other more time-consuming methods.
A company uses containers stored in Docker Hub to deploy workloads for its IaaS infrastructure. The development team releases changes to the containers several times per hour.Which of the following should a cloud engineer do to prevent the proprietary code from being exposed to third parties?
Answer(s): D
Using private repositories for storing Docker containers ensures that proprietary code is not publicly accessible on Docker Hub or any other public container registry. This approach limits access to only authorized users, protecting the proprietary code from being exposed to third parties.
A social networking company operates globally. Some users from Brazil and Argentina are reporting the following error: website address was not found. Which of the following is the most likely cause of this issue?
Answer(s): B
Since users from Brazil and Argentina are reporting that the website address was not found, it suggests a regional issue affecting users in a specific geographic area. This is most likely due to a regional DNS provider outage, which prevents DNS resolution for users in that region.
A junior cloud administrator was recently promoted to cloud administrator and has been added to the cloud administrator group. The cloud administrator group is the only one that can access the engineering VM. The new administrator unsuccessfully attempts to access the engineering VM. However, the other administrators can access it without issue. Which of the following is the best way to identify the root cause?
The best way to identify the root cause of why the new cloud administrator cannot access the engineering VM is to review the administrator's permissions. It is possible that there is a configuration issue or a delay in updating the permissions for the newly promoted administrator. Confirming that they have the same permissions as the other administrators will help determine if the issue is related to permissions.
Which of the following describes the main difference between public and private container repositories?
Answer(s): A
The main difference between public and private container repositories is access control: Private container repositories require authorization for access, meaning only users with appropriate credentials can view, pull, or push container images. This ensures that only authorized personnel have access to potentially sensitive container images. Public container repositories are accessible to anyone, with no need for authorization. This allows users to freely browse, pull, and use container images.
A DevOps engineer is receiving reports that users can no longer access the company’s web application after hardening of a web server. The users are receiving the following error:ERR SSL VERSION OR CIPHER MISMATCH.Which of the following actions should the engineer take to resolve the issue?
The error message "ERR SSL VERSION OR CIPHER MISMATCH" indicates that the server is using a version of SSL/TLS or a cipher suite that is not supported by the client attempting to access the application. To resolve this issue, the DevOps engineer should:Configure TLS 1.2 or newer: Modern web browsers and clients no longer support older versions of SSL and TLS (such as SSLv3 or TLS 1.0/1.1) due to known vulnerabilities. Configuring the server to use TLS 1.2 or newer will ensure compatibility with modern clients and meet security best practices.
A company’s engineering department is conducting a month-long test on the scalability of an in-house-developed software that requires a cluster of 100 or more servers. Which of the following models is the best to use?
IaaS (Infrastructure as a Service) provides the ability to provision and manage virtual servers, networks, and storage on-demand, which is ideal for setting up and scaling a cluster of 100 or more servers for testing purposes. IaaS allows the engineering department to maintain control over the servers and the software they run, which is well-suited for scalability testing.
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