Which option is one of the three identifiers of the area ID?

The correct answer is C. TAC. TAC (Tracking Area Code) is correct because it is one of the three components that form the Tracking Area Identity (TAI) in LTE/4G networks - the other two being the MCC (Mobile Country Code) and MNC (Mobile Network Code). Together, MCC + MNC + TAC uniquely identify a tracking…

Mobile Network Fundamentals

Question

Options

AMME
BSWG
CTAC
DGUTI

How the community answered

(63 responses)

A
5% (3)
B
2% (1)
C
92% (58)
D
2% (1)

Explanation

TAC (Tracking Area Code) is correct because it is one of the three components that form the Tracking Area Identity (TAI) in LTE/4G networks - the other two being the MCC (Mobile Country Code) and MNC (Mobile Network Code). Together, MCC + MNC + TAC uniquely identify a tracking area within a mobile network.

MME (Mobility Management Entity) is a core network node responsible for signaling and control, not an area identifier. GUTI (Globally Unique Temporary Identifier) is a temporary identifier assigned to a UE (device), used to protect subscriber identity - it identifies a device, not an area. SWG is not a standard 3GPP identifier in this context at all, making it an easy elimination.

Memory tip: TAI = Tracking Area Identity → its three parts spell out the structure: country (MCC) → network (MNC) → TAC (the area code itself). Think of it like a postal address: country → carrier → zone.

Topics

#Tracking Area Code (TAC)#Area Identifiers#LTE Fundamentals#Mobile Network IDs

Community Discussion

No community discussion yet for this question.

Full 500-215 Practice