The correct answer is D. print(json_object[ " TABLE_intf " ][ " ROW_intf " ][0] [ " prefix " ]).
* Parsing JSON output from Cisco devices
* Using Python to extract structured data
* Understanding how CLI output is converted into JSON format
* The command used:
show ip int brief | json
returns structured JSON data.
* The JSON hierarchy shown in the exhibit:
{
" TABLE_intf " : {
" ROW_intf " : [
{ " intf-name " : " Vlan100 " , " prefix " : " 192.168.10.1 " , ... },
{ " intf-name " : " Vlan200 " , " prefix " : " 192.168.20.1 " , ... },
...
]
}
}
* Important Observations:
* ROW_intf is a list (array) of interface objects.
* Each object contains fields like " prefix " (IP address).
* VLAN 100 is used for management and appears first in the list.
* Python Code Analysis:
* json.loads() converts JSON string into a Python dictionary # json_object
* To access VLAN100 IP:
json_object[ " TABLE_intf " ][ " ROW_intf " ][0] [ " prefix " ]
* Why Option D is Correct:
* Uses the correct variable ( json_object )
* Correctly navigates dictionary # list # element # key
* Index [0] corresponds to Vlan100 (management VLAN)
* A & B: Use json.dumps incorrectly (this function converts Python # JSON, not for accessing data)
* C: Uses index [1] , which refers to Vlan200, not VLAN100
When working with Cisco JSON output:
* Identify list vs dictionary
* Use indexing for lists ( [0] )
* Use keys for dictionaries ( [ " key " ] )
Correct Pattern:
json_object[ " parent " ][ " child " ][index] [ " field " ]