Q: 15
DRAG DROP Drag and drop the LDP features from the left onto the correct usages on the right. 
Drag & Drop
Discussion
session protection -> It uses LDP Targeted hellos to protect LDP sessions
IGP synchronization -> It allows stale label bindings to be used for a period of time while an LDP neighbor is unreachable
targeted-hello accept -> It uses LDP to form neighborship between non-directly connected routers
graceful restart -> It prevents valid routes from being overwritten with new ones until labels are assigned
I’ve seen similar drag-and-drops and this mapping lines up, but technically, IGP sync keeps traffic off the path until LDP is ready, not really about stale bindings. If they get picky on phrasing it could trip you up.
IGP synchronization -> It allows stale label bindings to be used for a period of time while an LDP neighbor is unreachable
targeted-hello accept -> It uses LDP to form neighborship between non-directly connected routers
graceful restart -> It prevents valid routes from being overwritten with new ones until labels are assigned
I’ve seen similar drag-and-drops and this mapping lines up, but technically, IGP sync keeps traffic off the path until LDP is ready, not really about stale bindings. If they get picky on phrasing it could trip you up.
session protection → It uses LDP Targeted hellos to protect LDP sessions
IGP synchronization → It prevents valid routes from being overwritten with new ones until labels are assigned
targeted-hello accept → It uses LDP to form neighborship between non-directly connected routers
graceful restart → It allows stale label bindings to be used for a period of time while an LDP neighbor is unreachable
I think this is right but not 100 percent sure, some docs make IGP sync and graceful restart sound close. Let me know if you see it differently.
IGP synchronization → It prevents valid routes from being overwritten with new ones until labels are assigned
targeted-hello accept → It uses LDP to form neighborship between non-directly connected routers
graceful restart → It allows stale label bindings to be used for a period of time while an LDP neighbor is unreachable
I think this is right but not 100 percent sure, some docs make IGP sync and graceful restart sound close. Let me know if you see it differently.
Not sure if they're asking for the best usage or just any that apply. For example, with 'graceful restart', that could fit more than one target depending on interpretation. Would your answer change if it said "primary purpose" for each feature?
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