350-901 sample questions

Question 1

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

Accepted Answer

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

Answer

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.

Answer

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

Answer

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

Question 2

A cloud native project is being worked on in which all source code and dependencies are written in Python, Ruby, and/or JavaScnpt. A change in code triggers a notification to the CI/CD tool to run the CI/CD pipeline.Which step should be omitted from the pipeline?

Accepted Answer

Compile code.

Answer

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

Answer

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

Answer

Run automated tests to validate the code.

Question 3

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

Accepted Answer

Application code writes its event stream to stdout.

Accepted Answer

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

Answer

Application log streams are archived in multiple replicated databases.

Answer

Application code writes its event stream to specific log files.

Answer

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

Question 4

An organization manages a large cloud-deployed application that employs a microservices architecture. No notable issues occur with downtime because the services of this application 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 current scale?

Accepted Answer

Add consistent ג€try/catch(exception)ג€ clauses to the code.

Answer

Update the base image of the containers.

Answer

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

Answer

Increase the number of containers running per service.

Question 5

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

Accepted Answer

Set a per-user limit (for example, 5 requests/minute/user) and deny the requests from the users who have reached the limit.

Answer

Use algorithms like random early detection to deny excessive requests.

Answer

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

Answer

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

Question 6

An organization manages a large cloud-deployed application that employs a microservices architecture across multiple data centers. Reports have been received about application slowness. The container orchestration logs show that faults have been raised in a variety of 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.)

Accepted Answer

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

Accepted Answer

Add logging on exception and provide immediate notification.

Answer

Automatically pull out the container that fails the most over a time period.

Answer

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

Answer

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

Question 7

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

Accepted Answer

publicly disclosed vulnerabilities related to the included dependencies

Accepted Answer

buffer overflows to occur as the result of a combination of the included dependencies

Answer

mismatches in coding styles and conventions in the included dependencies

Answer

incompatible licenses in the included dependencies

Answer

test case failures introduced by bugs in the included dependencies

Question 8

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

Accepted Answer

Ansible and Terraform

Answer

Ansible

Answer

NSO

Answer

Terraform

Answer

Ansible and NSO

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Free 350-901 sample questions

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

A cloud native project is being worked on in which all source code and dependencies are written in Python, Ruby, and/or JavaScnpt. A change in code triggers a notification to the CI/CD tool to run the CI/CD pipeline.Which step should be omitted from the pipeline?

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

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

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

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