What triggers a discrepancy report when addresses are updated in the E911 database?

• A. When the updated address validates against the MSAG
• B. Initiated by the DBMSP when the service address does not validate against the MSAG
• C. When the caller requests a change to their service address
• D. When ALI data is loaded for the first time

Answer: (B)

MSAG validation of service addresses is the test focus here. When an address is updated in the E911 database, it must exist in the Master Street Address Guide and match its components exactly. If the updated service address does not validate against the MSAG, the DBMSP generates a discrepancy report to flag the mismatch so it can be corrected before the data is used for routing and ALI display. If the address does validate against the MSAG, no discrepancy report is produced. A caller requesting a change or loading ALI data for the first time can influence data, but a discrepancy report is specifically triggered by a validation failure against the MSAG.