200-901 Free Practice Test

- (Exam Topic 1)
A developer is reviewing a code that was written by a colleague. It runs fine, but there are many lines of code to do a seemingly simple task repeatedly. Which action organizes the code?

1. A. Refactor the code by removing any unnecessary tests
2. B. Using functions, rewrite any pieces of code that are repeated
3. C. Reverse engineer and rewrite the code logic
4. D. Modify the code to use loops

Correct Answer: B

- (Exam Topic 1)
What is the benefit of edge computing?

1. A. It reduces network latency by moving processing closer to the data source.
2. B. It simplifies security as devices and processing are brought closer together
3. C. It removes the need for centralized data processing.
4. D. It reduces data velocity from devices or other data sources.

Correct Answer: A
Reference: https://blogs.cisco.com/networking/time-to-get-serious-about-edge-computing

- (Exam Topic 2)
What is a difference between a synchronous API and an asynchronous API?

1. A. An asynchronous API can make offline calls while synchronous APIs do not have this capability.
2. B. Synchronous API calls are returned immediately while asynchronous calls do not guarantee an immediate response.
3. C. Synchronous API calls require an authentication header to be sent while asynchronous calls do not require authentication.
4. D. An asynchronous API can make a larger number of calls in a specified time period than a synchronous API.

Correct Answer: B
Reference:
https://stackoverflow.com/questions/36213948/what-is-the-difference-between-asynchronous-calls-and-callback

- (Exam Topic 2)
Refer to the exhibit.

A developer wants to create a room named cisco through Webex API. The developer prepares the request by putting an API token inside the authorization header; however, the given HTTP call returns error code 400. How must the call parameters be changed to ensure a valid response?

1. A. Replace the team body parameter with the name body parameter.
2. B. Replace cisco with a valid name for a team.
3. C. Change the token in the header with the authorization token.
4. D. Change the HTTP method of the call to PUT.

Correct Answer: A

- (Exam Topic 3)
An engineer needs to collect information about 20,000 Bluetooth clients using the Cisco Meraki API. The API returns only 1,000 results. One of the HTTP response headers has the data:
Link: https://api.meraki.com.info/api/v0/networks/ABC/bluetoothClients?perPage=1000&startingAfter=1000>;rel=“n
Which RFC is implemented by the API to apply the restriction?

1. A. RFC 5988 – Web Linking
2. B. RFC 5890 – Response Constraints
3. C. RFC 5005 – Feed Paging and Archiving
4. D. RFC 5446 – Content Limits

Correct Answer: C