Final answer:
In computer networks and web development, a portal allows broadcasting of information between zones within the same portal.
Step-by-step explanation:
In computer networks and web development, a portal refers to a web-based platform or website that provides access to various services and information. To broadcast information between zones within the same portal, the portal needs to have a messaging or communication feature. This allows users in different zones or sections of the portal to exchange information and communicate with each other.
For example, imagine a learning management system (LMS) where different classes or subjects are represented as zones within the same portal. If the LMS has a messaging feature, students and teachers in the same class can broadcast information, such as announcements or discussion topics, to everyone in their class through the portal's messaging system.