Implement a secure environment →easyMultiple ChoiceObjective-mapped

DP-300 Implement a secure environment Practice Question

Exhibit

Refer to the exhibit.

```json
{
  "properties": {
    "startIPAddress": "10.0.0.0",
    "endIPAddress": "10.0.0.255"
  }
}
```

You are reviewing a JSON representation of an Azure SQL Database firewall rule. What is the effect of this rule?

⚠ Common exam trap

Test-takers frequently confuse the inclusive range behavior with a single IP or assume that a range implies blocking, when in fact Azure SQL Database firewall only supports allow rules and the range is inclusive of both endpoints.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Allows all IP addresses from 10.0.0.0 to 10.0.0.255.

The JSON representation of the Azure SQL Database firewall rule with startIpAddress '10.0.0.0' and endIpAddress '10.0.0.255' defines a range that allows all IP addresses from 10.0.0.0 to 10.0.0.255 inclusive. Azure SQL Database firewall rules use inclusive IP range matching, so any client with an IP in that range is permitted to connect, provided the rule is enabled.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Blocks all IP addresses from 10.0.0.0 to 10.0.0.255.
Why it's wrong here
Incorrect: Firewall rules are allow rules, not deny.
✗
Allows all IP addresses except 10.0.0.0 to 10.0.0.255.
Why it's wrong here
Incorrect: The rule allows the range, not excludes it.
✓
Allows all IP addresses from 10.0.0.0 to 10.0.0.255.
Why this is correct
Correct: This is the range defined.
✗
Allows only the IP address 10.0.0.0.
Why it's wrong here
Incorrect: The rule allows a range.

Go deeper

DP-300 Implement a secure environment Practice Question

Exhibit

Why each option matters

Option-by-option breakdown

Related to this question