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350-901 Exam
Developing Applications using Cisco Core Platforms
and APIs Exam
QUESTIONS & ANSWERS
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, Cisco
350-901 Exam
Cisco Developing Applications using Cisco Core Platforms and
APIs (DEVCOR) Exam
Questions & Answers
Demo
,Questions & Answers PDF Page 2
Version: 4.0
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?
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 timely to allow seamless request flow.
C. 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.
D. 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: A
Question: 2
DRAG DROP
An application is being built to collect and display telemetry streaming data. Drag and drop the elements
of this stack from the left onto the correct element functions on the right.
Answer:
,Questions & Answers PDF Page 3
Question: 3
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?
A. Deploy the code to one or more environments, such as staging and/or production.
B. Build one of more containers that package up code and all its dependencies.
C. Compile code.
D. Run automated tests to validate the correctness.
Answer: A
Question: 4
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.
Answer: AD
Question: 5
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
,Questions & Answers PDF Page 4
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?
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.
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, 5 requests/minute/user) and deny the requests from the users who
have reached the limit.
C. Only 1000 user connections are allowed; further connections 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.
Answer: D
Question: 7
An organization manages a large 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 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.)
A. Automatically pull out the container that fails the most over a time period.
B. Implement a tagging methodology that follows the application execution from service to service.
C. Add logging on exception and provide 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.
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.)
, Questions & Answers PDF Page 5
A. publicly disclosed vulnerabilities related to the included dependencies
B. mismatches in coding styles and conventions in the included dependencies
C. incompatible licenses in the included 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 included dependencies
Answer: AE
Question: 9
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?
A. Ansible
B. Ansible and Terraform
C. NSO
D. Terraform
E. Ansible and NSO
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 code base.
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.
Answer: D
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