Question: What is a potential security risk associated with Media Presentation Descriptions (MPDs) in Adaptive HTTP Streaming?
Option 1: Unauthorized access to User Equipment (UE) location data
Option 2: Malicious modification of streaming server IP addresses
Option 3: Supplying MPDs with a very low minimum update period for Denial-of-Service attacks or referencing harmful external media files
Option 4: Unsecured transmission of billing information
Explanation: This option is correct because two significant risks are identified: (1) the potential for a Denial-of-Service attack by manipulating the update period of MPDs, and (2) the risk of referencing harmful media files since MPDs point to external media, impacting the security and integrity of the streaming service in telecom networks.