A public health clinic network has sparse civic camera viewers across sites and wants shared-tree pull toward an RP instead of dense flood-and-prune. Which PIM mode best matches that requirement?
Select an answer to reveal the explanation.
Short Explanation
Sparse Mode is the “ask before you send” club: receivers join, traffic flows toward an RP, and idle branches stay quiet. Dense Mode is the opposite—blast everywhere then prune. For a few camera watchers on a big civic WAN, Sparse Mode is the sane default.
Full Explanation
PIM Sparse Mode builds distribution trees on demand using explicit Joins toward an RP for shared trees and optionally toward sources for shortest-path trees. That model fits sparse receiver populations where flooding would waste WAN and campus bandwidth. PIM Dense Mode’s flood-and-prune behavior is generally inappropriate when interest is localized and links are capacity-sensitive.