A developer creates a program in which an object maintains a list of classes based on the observer pattern. The classes are dependent on the object. Whenever the state of the object changes, it noti es the dependent classes directly through callbacks. Which advantage of the observer pattern offers minimum dependencies and maximum exibility between dependent objects or classes? A. tight coupling B. cohesion C. mediation D. loose coupling Correct Answer: D This question is in 200-901 exam For getting Cisco Certified DevNet Associate Certificate
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Refer to the exhibit. A Python script must delete all Cisco Catalyst 9300 Series switches that have an uptime that is greater than 90 days. The script must also query for the status of all the other devices. Drag and drop the code from the bottom onto the box where the code is missing to complete the script. Not all options are used.
Refer to the exhibit. Drag and drop the code from the bottom onto the box where the code is missing in the Python unittest to verify whether the function returns the correct values. Not all options are used.