400-201: Cisco CCIE Service Provider Written Exam

Most Likely Cause of Postman Script Failure

Question

A Postman script to poll a specific object was working a few minutes ago, but suddenly stopped working.

The APIC is still reachable from your client and seems to function normally.

No change was made to script.

Which option describes the most likely cause of this issue?

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

C.

Given that the APIC is still reachable from the client and seems to function normally, options A and D are unlikely to be the cause of the issue. A man-in-the-middle attack typically involves intercepting and modifying network traffic, but this does not seem to be the case here since the APIC is still reachable and functioning normally. Similarly, an expired license would typically cause broader issues beyond the failure of a single script.

Option B, the object data being returned as JSON instead of XML, is a possible cause of the issue. If the script was written to parse XML data and the APIC is returning JSON data instead, the script would fail to work as expected. To confirm if this is the case, the script should be reviewed to check if it is expecting XML data and if the APIC is now returning JSON data.

Option C, the authentication token has expired, is also a possible cause of the issue. If the authentication token has expired, the script would fail to execute as expected. To confirm if this is the case, the authentication token should be checked to see if it has expired, and if so, it needs to be reauthenticated.

In summary, the most likely causes of the script not working are either the object data being returned as JSON instead of XML or the authentication token expiring. It is necessary to review the script and check the authentication token to confirm which of these two options is the cause of the issue.