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Question #1

A developer has created an application based on customer requirements. The customer needs to run the form with the minimum downtime. Which design approach regarding high-availability applications, Recovery Time Objective, and Recovery Point Objective must be taken?

A. Active/passive results in lower RTO and RPO. For RPO, data synchronization between the two data centers must be timely to allow seamless request flow.

B. Active/passive results in lower RTO and RPO. For RPO, data synchronization between the two data centers does not need to be time to allow seamless request flow.

C. Active/current results in lower RTO and RPO. For RPO, data synchronization between the two data centers does not need to be time to allow seamless request flow.

D. Active/current results in lower RTO and RPO. For RPO, data synchronization between the two data centers must be timely to allow seamless request flow.

 Correct Answer: A

Question #2

A cloud-native project is being worked on in which all source code and dependencies are written in Python, Ruby, and javascript. A change in system triggers a notification to the CI/CD tool to run the CI/CD pipeline.

Which step should be omitted from the pipeline?

A. Deploy the code to one or more environments, such as staging and/or production.

B. Build one or more containers that package up code and all its dependencies.

C. Compile code.

D. Run automated tests to validate the correctness.

Correct Answer: A

Question #3

Which two statements are considered best practices according to the 12-factor app methodology for application design? (Choose two.)

A. Application code writes its event stream to stdout.

B. Application log streams are archived in multiple replicated databases.

C. Application log streams are sent to log indexing and analysis systems.

D. Application code writes its event stream to specific log files.

E. Log files are aggregated into a single file on individual nodes.

Correct Answer: AD 

Question #4

Which database type should be used with highly-structured data and provides support for ACID transactions?

A. time series

B. document

C. graph

D. relational

Correct Answer: D

Question #5

An organization manages a large cloud-deployed application that employs a microservices architecture. No important issues occur with downtime because this application’s services are redundantly deployed over three or more data center regions. However, several times a week, reports are received about application slowness. The container orchestration logs show faults in a variety of containers that cause them to fail and then spin up brand new.

Which action must be taken to improve the resiliency design of the application while maintaining the current scale?

A. Update the base image of the containers.

B. Test the execution of the application with another cloud services platform.

C. Increase the number of containers running per service.

D. Add consistent “try/catch(exception)” clauses to the code.

Correct Answer: D

Question #6

How should a web application be designed to work on a platform where up to 1000 requests per second can be served?

A. Use algorithms like random early detection to deny excessive requests.

B. Set a per-user limit (for example, five requests/minute/user) and refuse the demands from the users who have reached the limit.

C. Only 1000 user connections are allowed; further links are denied so that all connected users can be served.

D. All requests are saved and processed one by one so that all users can be served eventually.

Correct Answer: D

Question #7

An organization manages a sizeable cloud-deployed application that employs a microservices architecture across multiple data centers. Reports have received about application slowness. The container orchestration logs show that faults have been raised in various containers that caused them to fail and then spin up brand new instances.

Which two actions can improve the design of the application to identify the faults? (Choose two.)

A. Automatically pull out the container that fails the most over some time.

B. Implement a tagging methodology that follows the application execution from service to service.

C. Add logging on exception and provide the immediate notification.

D. Do a write to the datastore every time there is an application failure.

E. Implement an SNMP logging system with alerts in case a network link is slow.

Correct Answer: BC

Question #8

Which two situations are flagged by software tools designed for dependency checking in continuous integration environments, such as OWASP? (Choose two.)

A. publicly disclosed vulnerabilities related to the included dependencies

B. mismatches in coding styles and conventions in the added dependencies

C. incompatible licenses in the added dependencies

D. test case failures introduced by bugs in the included dependencies

E. buffer overflows to occur as the result of a combination of the added dependencies

Correct Answer: AE

Question #9

A network operations team is using the cloud to automate some of its managed customer and branch locations. They require that all of their toolings be ephemeral by design and that the entire automation environment can be recreated without manual commands. The automation code and configuration state will be stored in git for change control and versioning. The high-level engineering plan is to use VMs in a cloud-provider environment, configure open source tooling onto these VMs to poll, test, configure the remote devices, and deploy the tooling itself.

Which configuration management and/or automation tooling is needed for this solution?

A. Ansible

B. Ansible and Terraform

C. NSO

D. Terraform

E. Ansible and NSO

Correct Answer: B

Question #10

An application is hosted on Google Kubernetes Engine. A new JavaScript module is created to work with the existing application. Which task is mandatory to make the code ready to deploy?

A. Create a Dockerfile for the codebase.

B. Rewrite the code in Python.

C. Build a wrapper for the code to “containerize” it.

D. Rebase the code from the upstream git repo.

Correct Answer: D

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Last modified: July 10, 2020

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