200-301 · Question #237
Which two minimum parameters must be configured on an active interface to enable OSPFV2 to operate? (Choose two.)
The correct answer is A. OSPF process ID E. OSPF area. To enable OSPFv2 on an active interface, it must be configured with an OSPF process ID and assigned to an OSPF area.
Question
Which two minimum parameters must be configured on an active interface to enable OSPFV2 to operate? (Choose two.)
Options
- AOSPF process ID
- BOSPF MD5 authentication key
- COSPF stub flag
- DIPv6 address
- EOSPF area
How the community answered
(31 responses)- A90% (28)
- B6% (2)
- D3% (1)
Why each option
To enable OSPFv2 on an active interface, it must be configured with an OSPF process ID and assigned to an OSPF area.
The OSPF process ID is a locally significant identifier that groups a set of OSPF-enabled interfaces and configuration parameters on a router, making it fundamental for starting an OSPF instance.
OSPF MD5 authentication is an optional security feature to protect routing updates, not a minimum requirement for OSPF operation.
The OSPF stub flag is an optional configuration used to define specific area types, not a basic requirement for enabling OSPF on an interface.
OSPFv2 operates with IPv4 addresses, while OSPFv3 is designed for IPv6, making an IPv6 address irrelevant for OSPFv2 operation.
Every OSPF interface must belong to an OSPF area, which is a logical grouping of routers and networks that defines the scope of routing information exchange and SPF calculations.
Concept tested: OSPFv2 interface configuration requirements
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/15-mt/iro-15-mt-book/iro-cfg.html
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