What are two reasons for creating an OSPF network with multiple areas? (Choose two.)

What are two reasons for creating an OSPF network with multiple areas? (Choose two.)

• to simplify configuration
• to ensure that an area is used to connect the network to the Internet
• to reduce SPF calculations
• to provide areas in the network for routers that are not running OSPF
• to reduce use of memory and processor resources

Explanation: If a router is not running OSPF, it is not configurable with an OSPF area. OSPF areas have no direct relationship with the Internet. Routers that run OSPF can connect to the Internet, but multiple OSPF areas are not required for this purpose. OSPF areas help to decrease the demand for router memory and processing power by limiting OSPF protocol traffic, keeping link-state databases small, and requiring fewer SPF recalculations. Multiarea OSPF requires additional steps to configure and therefore does not simplify the configuration process.

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