Refer to the exhibit. A developer needs to upload a local file by using the REST API. The developer gathers information according to the documentation and sends the request by using the cURL command in the exhibit but gets an error code. Which action should be followed to get a valid response?

add the authorization header with the access token

and a username-password combination to request command

Which action resolves a 401 error in response to an HTTP GET that is issued to retrieve a configuration statement using RESTCONF on a CSR 1000V?

Check the authentication credentials.

Check the MIME types in the HTTP headers.

Change the transport protocol to HTTPS.

Check the authentication credentials.

Refer to the exhibit. An API call is constructed to retrieve the inventory in XML formal by using the API. The response to the call is 401 Unauthorized. Which two headers must he added to the API call? (Choose two.)

Authorization: Bearer dXNlcm5hbWU6cGFzc3dvemQ=

Bearer-Token: dXNlcm5hbWU6cGFzc3dvemQ=

Authentication: Bearer dXNlcm5hbWU6cGFzc3dvemQ=

Authorization: Bearer dXNlcm5hbWU6cGFzc3dvemQ=

Refer to the exhibit. Which data is specified in the response header?

{“id”: “a123456bcde”, HTTP/1.1 200 OK“status”: “online”,“type”: “switch”}

What are two use cases where webhooks are effective? (Choose two.)

Close a session with a web server after a specific amount of time.

Send an email to a customer of an online store after payment is complete.

Filter out information from a response to an API call.

Close a session with a web server after a specific amount of time.

Inform a previously defined chat channel after a deployment fails.

Send an email to a customer of an online store after payment is complete.

Change the response formal or content type of an API call.

How does requesting a synchronous API operation differ from requesting an asynchronous API operation?

clients subscribe to a webhook for operation results

clients receive responses with a task id for further processing

clients subscribe to a webhook for operation results

clients poll for the status of the execution of operations

clients can access the results immediately

Which way should be used to safely store the API keys?

in an environment variable unique to the system database

encrypted in a configuration file that is separate from the code

plain text in the code as a constant

encrypted in the code in a function

Refer to the exhibit. An administrator attempts to perform a GET using the Cisco IOS XE RESTCONF API to return the hostname of a device. The sequence diagram illustrates the HTTP messages observed. Which change to the API request resolves the issue?

Add -‘u cisco:cisco' in the end of the cURL command

Remove the -H ‘Accept: application/yang-data+json' HTTP header because it is not required.

Add -‘u cisco:cisco' in the end of the cURL command

Change the request method from -X “GET” to -X “POST”

Add Content-Type HTTP header with ‘application/yang-data+json’ using -H ‘Content-Type: application/yang-data+json’

What are two benefits of managing network configuration via APIs? (Choose two.)

reduction in network changes performed manually

increased scalability and consistency of network changes

more security due to locking out manual device configuration

configuration on devices becomes less complex

eliminates the need of legacy management protocols like SNMP

reduction in network changes performed manually

increased scalability and consistency of network changes

Refer to the exhibits. A developer is troubleshooting an API with the given API documentation and cURL command. What is the cause of this problem?

The API token specified is expired.

The authorization header is missing or incomplete.

The request body is missing or incomplete.

The API token specified is expired.

The user is not allowed to post messages from their account.

Which two statements describe the traits of an asynchronous API call? (Choose two.)

A callback function typically is used to process the response from an API call.

A call to an API does not block the code, but rather it allows application processing to continue.

Code execution blocks or waits for the call to an API to return.

A callback function typically is used to process the response from an API call.

A call to an API does not block the code, but rather it allows application processing to continue.

The end user can experience latency or performance lag while waiting for the API call to return.

The order in which API calls return can be guaranteed.

Refer to the exhibit. What caused the error in this API request?

The submitted JSON payload has a formatting issue.

The API resource does not support the POST operation.

The submitted JSON payload has a formatting issue.

The API resource does not support JSON format payloads.

The submitted JSON payload includes a field that is not supported by the API resource.

Which two use cases are supported by Meraki APIs? (Choose two.)

Build a custom Captive Portal for Mobile Apps.

Configure network devices via the Dashboard API.

Build location-aware apps from Wi-Fi and LoRaWAN devices.

Build a custom Captive Portal for Mobile Apps.

Configure network devices via the Dashboard API.

Deploy applications onto the devices.

Retrieve live streams from a Meraki Camera.

Which API is used to obtain data about voicemail ports?

Cisco Unified Communications Manager

What is a difference between a synchronous API and an asynchronous API?

Synchronous API calls are returned immediately while asynchronous calls do not guarantee an immediate response.

Synchronous API calls require an authentication header to be sent while asynchronous calls do not require authentication.

Synchronous API calls are returned immediately while asynchronous calls do not guarantee an immediate response.

An asynchronous API can make offline calls while synchronous APIs do not have this capability.

An asynchronous API can make a larger number of calls in a specified time period than a synchronous API.

Refer to the exhibit. A network engineer must manage the network devices. The engineer prepares a Python script to authenticate to the Cisco DNA Center API and request a device list. The device request, fails and returns error code 401.Which action solves the problem?

Update the credentials that are already supplied and retry the request.

Send the request to another network in case there are reachability issues.

Send the Authentication header in the request with a valid configuration.

Update the API URL, which matched the API endpoint for device list.

Refer to the exhibit. Which command needs to be placed on the box where the code is missing to output the value of page_id in the Python 3.7 script?

print(items.get(‘items’).get(‘page_id’))

print(items.get(‘items’)[0].get(‘page_id’))

print(items.get(‘items’).get(‘page_id’))

print(items[‘items’][‘page_id’].keys())

print(items[‘items’][‘page_id’])

Refer to the exhibit. A developer creates a Python script that queries Cisco Webex. When the script is executed, a 401 code is returned. After troubleshooting, the developer discovers that the service is missing privileges. Which change to the header in line 4 of the script results in the code 200?

header = {“Authorization”: “Bearer YOUR_TOKEN”}

header = {“Authentication”: “Bearer YOUR_TOKEN”}

header = {“Authentication Bearer” : “YOUR_TOKEN”

header = {“Authorization Bearer” : “YOUR_TOKEN”}

header = {“Authorization”: “Bearer YOUR_TOKEN”}

In Python, which expression checks whether the script returns a success status code when the Requests library is used?

response.status_code == requests.codes.ok

response.code == requests.codes.ok

response.status_code == requests.ok

response.status_code != requests.codes.ok

Refer to the exhibit. The script returns an output of 401. To use the supplied URL, an HTTP GET request must be sent with an Authorization header. The header value is a base64 encoded concatenation of the username and password.Which action must be taken to return an output of 200?

Verify that the username and password values imported from the configuration file are still valid.

Change the verify=False setting in the request to verify=True to enable HTTP Basic authentication.

Verify that the username and password values imported from the configuration file are still valid.

Insert an Authorization header with the values username:password from the supplied configuration file.

Modify the method from LOGIN to GET and supply the username:password value as JSON payload.

Refer to the exhibit. A Python code has been written to query a device. The executed code results in the error shown. Which action resolves the problem?

requests(“GET”, base_url + request_url, cookies=cookies)

Which platform has an API that can be used to obtain a list of vulnerable software on user devices?

Cisco Advanced Malware Protection

A company has written a script that creates a log bundle from the Cisco DNA Center every day. The script runs without error and the log bundles are produced. However, when the script is run during business hours, people report poor voice quality of phone calls. What explains this behavior?

The speed and duplex settings in Cisco DNA Center are set incorrectly, which causes the transfer to be too slow.

The script is written in a low-level programming language where there is no memory safety. This causes a buffer overflow and disruption on the network.

The speed and duplex settings in Cisco DNA Center are set incorrectly, which causes the transfer to be too slow.

The script is running in the Voice VLAN and causes delays and jitter in the subnet.

Generating the logs causes the CPU on the network controller to spike, which causes delays in forwarding the voice IP packets.

Cisco 200-901 Practice Test 2 - Free Online Exam Prep & Questions

Question 1 / 40

A developer is trying to retrieve data over a REST API. The API server responds with an HTTP client error response code. After investigating the response the developer realizes the response has a RetryAfter header. What is the root cause of this error?

An appliance limited the rate of requests to the transport layer.

The REST service is unreachable at the time of the REST request.

Too many requests were sent to the REST service in a given amount of time.

An appliance limited the rate of requests to the application layer.

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