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300-920 DEVWBX exam details you must know:

Vendor: Cisco
Exam Code: 300-920
Exam Name: Developing Applications for Cisco Webex and Webex Devices (DEVWBX)
Certification: Cisco Certified DevNet Professional
Duration: 90 minutes
Languages: English
Price: $300 USD

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Drag and drop the code to complete the JavaScript snippet so that it:
retrieves the details of an individual user
checks what licenses they have already
updates their account with a new license Options can be used more than once.
Select and Place:

Correct Answer:


Drag and drop the definitions from the left onto the correct Webex Teams REST API HTTP response status codes on the right.
Select and Place:

Correct Answer:



A company wants to adopt Webex Teams as a messaging platform and use REST APIs to automate the creation of teams and rooms. Which sequence of REST API requests is needed to create and populate a new Webex team and create a populated Webex room for the team?

A. POST /teams, POST /memberships, POST /rooms
B. POST /teams, POST /people, POST /rooms
C. POST /teams, POST /team/memberships, POST /rooms
D. POST /teams, POST /team/memberships, POST /rooms, POST /memberships

Correct Answer: B



Refer to the exhibit. A macro and a UI extension (also called In-Room Control) are being developed. What is the reason for the error displayed in the console?

A. Widgets of type “Slider” are not supported on the device.
B. The UI extension was not exported to the device.
C. The name of the widget in the macro and the UI extension must match.
D. Promises are not supported for this device.

Correct Answer: B



Refer to the exhibit. Which code for blank lines 26, 27, and 28 gives invitees 900 seconds before the scheduled time to join the meeting, sets the meeting to last for 30 minutes, and sets the meeting timezone to Pacific US?

A. Option A
B. Option B
C. Option C
D. Option D

Correct Answer: B



Which XML snippet does an admin use with a Webex Meetings XML API request to retrieve info on multiple users?

A. .*
B. .*

Correct Answer: A



Which code adds a Space Widget in an HTML script that uses the CSS Webex CDN?


Correct Answer: D



Refer to the exhibit. An end-user reports that the speed dial button is not working on their Webex Device, and when loading into the Macro Editor, this error was presented. On which line is the incorrect syntax?

A. line 4
B. line 14
C. line 15
D. line 22

Correct Answer: C



Drag and drop the code snippets onto the exhibit to create a valid Webex Meetings API request allowing Jane (an admin) to reset John\’s PMR pin. Not all options are used.
Select and Place:

Correct Answer:


Which expression is a valid Webex Teams webhook filter?

A. [email protected]+roomId=abc123
B. [email protected]=abc123
C. [email protected]=abc123
D. [email protected],roomId=abc123

Correct Answer: C

You can also use more than one filter in a webhook. To use multiple filters, combine them with the “and” symbol. For example, to create a webhook that only sends notifications when a specific person performs an action in a specific room, such as sending a message or creating a membership, combine the personEmail and roomId filters.



Which two statements about Webex Teams refresh tokens are true? (Choose two.)

A. The refresh token is useless without the client ID and client secret.
B. An attacker can use the refresh token to send messages on behalf of the user.
C. The refresh token is used to generate a new access token.
D. A new refresh token cannot be granted until the client ID is invalidated.
E. The refresh token does not expire.

Correct Answer: BC



Refer to the exhibit. The Node.js script shown uses the Webex Meetings XML API to print “Here!” to the console.

Which statement is a correct observation about the results of the script?

A. The was not complex enough.
B. The credential was expired.
C. The WebexMeetings XML API service processed the request.
D. The meeting was created successfully.

Correct Answer: C

The password, although not that good, has a capital letter and numbers. Therefore, it is okay. SessionTicket credential is not expired because the error function doesn\’t check that. We are not sure if the meeting was created successfully however, there is no wrong in the code, therefore, webexmeetings XML API service has processed the request.


Refer to the exhibit. A Webex Teams REST API response is shown with the HTTP Header missing. Which HTTP header expected in this response?

A. Push
B. Link
C. Patch
D. Put

Correct Answer: B



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cisco 300-915 exam questions q1

Refer to the exhibit. The code snippet provides information about the packet captures within a network.
How can the most used source IP addresses within a specific time be visualized?

A. line graph
B. bar histogram
C. scatter plot
D. heatmap



Which connector is southbound?

A. horizontal connector
B. cloud connector
C. device connector
D. universal connector



How does the Cisco router (IR) and switch (IE) portfolio support edge data services?

A. Edge data services can be run and managed as containers using Cisco IOx.
B. Edge data services can run only in virtual machines on a separate compute layer.
C. Edge data services are aliases for IR/IE configuration services.
D. Edge data services run as separate instances only on virtual machines.



A customer is deploying sensors with Cisco IR829 routers in moving trucks to continuously monitor the health of
engines using a cloud application.
Which data extraction and processing strategy is best suited in this environment?

A. No need to store data locally, upload in real time to the cloud for processing.
B. Generate local alerts and create reports at the edge, and upload to the cloud at the end of the day.
C. Use the store and forward mechanism to upload the information at the earliest to cloud.
D. Ensure that data is stored for a longer duration locally and upload to the cloud every week.



cisco 300-915 exam questions q5

Refer to the exhibit. Which two statements are true? (Choose two.)

A. That is a heatmap projected on top of a geographic map.
B. That is a treemap projected on top of a geographic map.
C. The color red usually stands for lower values and the color blue usually stands for higher values.
D. Another suitable visualization technique for this image would be line graphs.
E. The color blue usually stands for lower values and the color red usually stands for higher values.



What are two functionalities of edge data services? (Choose two.)

A. creating a machine learning data model
B. supporting many interfaces and APIs
C. applying advanced data analytics
D. filtering, normalizing and aggregating data
E. saving data for a prolonged time period



A company is collecting data from several thousand machines globally. Which software component in the overall
architecture is the next destination of the dataflow after the data has been gathered and normalized on the edge data

A. relational database: MySQL
B. historian database: influxDB
C. message broker: Apache Kafka
D. dashboard: Node.js web app



cisco 300-915 exam questions q8

Refer to the exhibit. Approximately 4000 oil platforms, each with 400 sensors, are spread in the Gulf of Mexico and all of their data must come together into one dashboard. Which general architecture should be selected to connect them?
A. 4-tier: sensor ?edge device (Intel Atom CPU) ?fog device (Intel Xeon CPU) ?cloud
B. 5-tier: intelligent sensor?edge device (Intel Atom CPU) ?fog device (Intel Xeon CPU) ?edge data center (Intel Xeon
C. 2-tier: intelligent sensor ?cloud
D. 3-tier: sensor ?edge device (Intel Atom CPU) ?cloud




Which element ensures that PKI is used to establish the identity of IoT devices?

A. unique device identifier
B. encryption key
C. air gap
D. hashed routes



After an application is deployed, potential issues arise around connectivity. As part of the troubleshooting process, the
IP address must be determined to ensure end-to-end communication.
Which method provides the required details using the Cisco IOx CLI?

A. ioxclient application status
B. ioxclient application metrics
C. ioxclient application getconfig
D. ioxclient application info



As part of an IoT project, an organization is developing an application that will share multiple clients using a REST API.
Based on the software development process, what are two valid technical activities that can be suggested to secure the
REST API that is developed during the development of the software? (Choose two.)

A. Respond to request failures in detail to allow users for easier troubleshooting.
B. Implement HTTP whitelisting to only methods that are allowed.
C. Implement and review audit logs for security-related events.
D. Reject HTTP methods that are invalid with an error code 404.
E. Implement physical firewalling and access control to the resources.



When constructing a Python script for data extraction using GMM APIs on a Cisco Kinetic Cloud platform, how should
the API authentication be implemented?

A. Generate the API keys once and edit the permissions as needed.
B. Generate and use the API keys for the required access level from the Kinetic Cloud application.
C. Use a complex username and password with 128-bit encryption.
D. Use a complex username with an auto-generated password from the Kinetic Cloud application.



cisco 300-915 exam questions q13

Refer to the exhibit. The code and the error message that are received when the code is run is presented.
What causes issues authenticating with Cisco GMM API using the web-generated API key?

A. firewall that blocks authentication ports
B. incorrect username and password
C. incorrect GMM Cluster selection
D. incorrect key size and data encryption



Drag and drop the Dockerfile instructions from the left onto the correct arguments on the right.
Select and Place:

cisco 300-915 exam questions q14

Correct Answer:

cisco 300-915 exam questions q14-1



As part of an IoT project, an organization is developing an edge application that will run on a gateway to securely
transmit sensor information it receives into an IoT cloud. Based on the Agile software development lifecycle, the
development team is planning to implement a CI/CD pipeline.
Which two methods should be suggested to make the software development lifecycle more secure during the
implementation and testing? (Choose two.)

A. Perform automated code reviews prior to deployment.
B. Implement auto-provisioning security inspection for the code.
C. Perform on-going penetration testing on the system.
D. Perform a GAP analysis on current security activities and policies.
E. Train members of the team in a secure software development lifecycle methodology such as OWASP.

Verify answer:


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