Free Developing Applications using Cisco Core Platforms and APIs Exam 350-901 Exam Practice Test

Which two gRPC modes of model-driven telemetry are supported on Cisco IOS XE Software? (Choose two.)

• dial-in
• dial-out
• call-in
• call-out
• passive

Which database type should be used to store data received from model-driven telemetry?

• BigQuery database
• Time series database
• NoSQL database
• PostgreSQL database

What are two principles according to the build, release, run principle of the twelve-factor app methodology?(Choose two.)

• Code changes are able to be made at runtime.
• Separation between the build, release, and run phases.
• Releases should have a unique identifier.
• Existing releases are able to be mutated after creation.
• Release stage is responsible for compilation of assets and binaries.

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?

• Create a Dockerfile for the code base.
• Rewrite the code in Python.
• Build a wrapper for the code to ''containerize'' it.
• Rebase the code from the upstream git repo.

A team of developers created their own CA and started signing certificates for all of their loT devices, Which action will make the browseraccept these certificates?

• Set the private keys 1024-bit RSA.
• Preload the developer CA on the trusted CA list of the browser.
• Enable HTTPS or port 443 on the browser.
• install a TLS instead of SSL certificate on the loT devices.

A developer releases a new application for network automation of Cisco devices deployed m a local data center. The application utilizes complex design patterns such as microservices that host multiple third-party libraries and programming languages. The development must be simplified by implementing an observability-driven development lifecycle. Which two considerations must be taken to meet the requirements? (Choose two.)

• description of low-level errors
• which KPls to monitor
• relevant metrics to expose
• which monitoring tools to use
• identifying customer priorities

What is a consideration for using gRPC as the model-driven telemetry protocol on a Cisco IOS XE device?

• XML-based transmission format
• works in dial-out mode
• human-readable transmission format
• works in call-out mode

Which tool is used to deploy an IOx application to a group of lOx devices at one time?

• ioxclient
• lOx local manager
• Fog Network Director
• Kubernetes

What securely stores and encrypts the API keys and tokens that are used for an application deployment?

• ITSM
• Artifactory
• GitHub
• Vault

Which transport layer protocol does gRPC use to retrieve telemetry information?

• SSH
• SNMP
• TCP
• HTTP/2