350-901 sample questions

Question 1

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

Accepted Answer

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

Accepted Answer

Application code writes its event stream to stdout.

Answer

Application log streams are archived in multiple replicated databases.

Answer

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

Answer

Application code writes its event stream to specific log files.

Question 2

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

Increase the number of containers running per service.

Answer

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

Answer

Update the base image of the containers.

Question 3

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

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.

Answer

Use algorithms like random early detection to deny excessive requests.

Question 4

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

Add logging on exception and provide immediate notification.

Accepted Answer

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

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.

Answer

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

Question 5

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

test case failures introduced by bugs in the included dependencies

Answer

incompatible licenses in the included dependencies

Question 6

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

Terraform

Answer

Ansible

Answer

Ansible and NSO

Answer

NSO

Question 7

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?

Accepted Answer

Create a Dockerfile for the code base.

Answer

Rebase the code from the upstream git repo.

Answer

Build a wrapper for the code to ג€containerizeג€ it.

Answer

Rewrite the code in Python.

Question 8

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

Accepted Answer

relational

Answer

document

Answer

graph

Answer

time series

Free 350-901 sample questions

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.)

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?

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

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