Facility Restriction Level (FRL) can be used to control the privileges of a call originator. What are the levels of FRL that can be assigned?

Question

Options

• A0 -10 (with 10 being the lowest privilege level)
• B0 -10 (with 10 being the highest privilege level)
• C0 -7 (with 7 being the lowest privilege level)
• D0 -7 (with 7 being the highest privilege level)

• A
  2% (1)
• B
  4% (2)
• C
  4% (2)
• D
  91% (48)

Explanation

D is correct because FRL values in telephony systems (such as Cisco CUCM) are defined on a scale of 0 through 7, where 7 represents the highest privilege (unrestricted calling) and 0 represents the lowest (most restricted).

Why the distractors are wrong:

• A gets both the range and the direction wrong - the scale does not go to 10, and higher numbers grant more privilege, not less.
• B gets the direction right (higher = more privilege) but uses the incorrect range of 0–10 instead of 0–7.
• C uses the correct range (0–7) but inverts the hierarchy, incorrectly stating that 7 is the lowest privilege level.

Memory tip: Think of FRL like a security clearance - 7 is VIP access (the boss gets everything), while 0 is the lobby (highly restricted). The max value is 7 because it maps to a 3-bit binary value (2³ = 8 possible levels: 0–7).

No community discussion yet for this question.