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Core Application DevelopmentmediumMultiple ChoiceObjective-mapped

SNOW-CAD Core Application Development Practice Question

Exhibit

Refer to the exhibit.

ACL record:
Name: incident.write
Type: record
Operation: write
Condition: gs.hasRole('incident_manager')
Script:
answer = true;

The ACL above is on the 'incident' table. A user with role 'itil' tries to update an incident record. What will happen?

⚠ Common exam trap

Many exam-takers assume that having a role like 'itil' automatically grants update access, but ACLs require both the role and the condition to be satisfied, and a failing condition overrides the role-based permission.

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

The user will be denied because the condition fails.

The ACL (Access Control Rule) on the 'incident' table has a condition that must evaluate to true for the user to be granted access. In this case, the condition fails for a user with role 'itil' attempting to update the record, so the script does not set answer = true, resulting in a denial of the operation. Option D is correct because the condition failing means the ACL denies the write operation.

Answer analysis

Option-by-option breakdown

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

  • The user will be prompted for credentials.

    Why it's wrong here

    ACLs do not prompt for credentials.

  • The user will be allowed because the condition is ignored for write operations.

    Why it's wrong here

    Condition is always evaluated.

  • The user will be allowed because the script sets answer = true.

    Why it's wrong here

    The script only runs if the condition is true.

  • The user will be denied because the condition fails.

    Why this is correct

    The condition requires incident_manager role, which the user does not have.

Visual reference

Source Router + ACL permit 10.0.0.0/8 deny any Server 10.0.0.5 ✓ 192.168.1.1 ✗ dropped ACLs evaluate top-down; first match wins — implicit deny all at end

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

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