Which statements about OSPF stub areas are true? (Choose two.)
A. OSPF stub areas such as stubby or totally stubby, when used at the spokes sites in a dual-hub topology, help optimize network convergence time for spoke sites.
B. OSPF stub areas such as totally stubby, when used at the spoke's sites in dual-hub topology, ensure optimal routing is always achieved to eternal prefixes.
C. OSPF stub areas such as totally stubby, when used at the spoke's sites in dual-hub topology, may lead to suboptimal routing to external prefixes.
D. OSPF stub areas such as stubby or totally stubby, when used at the spoke's sites in dual-hub topology, add operational complexity.
Answer:A
Which statements about OSPF stub areas are true? (Choose two.)
A. OSPF stub areas such as stubby or totally stubby, when used at the spokes sites in a dual-hub topology, help optimize network convergence time for spoke sites. B. OSPF stub areas such as totally stubby, when used at the spoke's sites in dual-hub topology, ensure optimal routing is always achieved to eternal prefixes. C. OSPF stub areas such as totally stubby, when used at the spoke's sites in dual-hub topology, may lead to suboptimal routing to external prefixes. D. OSPF stub areas such as stubby or totally stubby, when used at the spoke's sites in dual-hub topology, add operational complexity.