Explanation:
Blank 1: C
Blank 2: E
Blank 3: D
The correct script must first import the JSON module, so the first blank is json, producing import json.
The Python object in the exhibit is a dictionary named data, containing fields such as measurement, policy, alert state, and device information. To convert a Python object into a JSON-formatted string, the correct function is json.dumps(). That makes the second blank json.dumps, producing json_string = json.dumps(data). The third blank must be json_string, because that is the variable containing the serialized JSON text that should be printed. json.loads() is the reverse operation; it parses a JSON- formatted string and converts it into a Python object, so it is not correct for object-to-string conversion.
model is merely a value extracted from the object and does not perform JSON serialization. The key distinction is dump/dumps versus load/loads: dumps returns a JSON string, while dump writes JSON to a file. References/topics: ENCOR Automation, Python data structures, JSON serialization, json.
dumps(), API payload handling, network programmability.

The correct answer is B. Router A.
VRRP elects the Master (primary virtual router) based on:
* Highest priority (default = 100)
* If priorities are equal # highest IP address wins
* Router A
IP: 192.168.0.100
Priority: default (100)
* Router B
IP: 192.168.0.2
Priority: default (100)
* Router C
IP: 192.168.0.3
Priority: 80
* Router D
IP: 192.168.0.4
Priority: 70
* Compare priorities:
* A = 100
* B = 100
* C = 80
* D = 70
# Highest priority = 100 (A and B tie)
* Tie-breaker # Highest IP address:
* Router A = 192.168.0.100
* Router B = 192.168.0.2
# 192.168.0.100 is higher
Router A becomes the VRRP Master (primary virtual router).
* Router B Same priority as A but lower IP address
* Router C Lower priority (80)
* Router D Lowest priority (70)
VRRP Election Rule:
Highest Priority # Highest IP (tie-breaker)
Default priority = 100, so always check:
* Who changed priority?
* If equal # compare interface IPs