200-301 Question #237: Real Exam Question with Answer & Explanation

The correct answer is A: OSPF process ID. To enable OSPFv2 on an active interface, it must be configured with an OSPF process ID and assigned to an OSPF area.

Submitted by olafpl· Mar 5, 2026IP Connectivity

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

Explanation

To enable OSPFv2 on an active interface, it must be configured with an OSPF process ID and assigned to an OSPF area.

Common mistakes.

B. OSPF MD5 authentication is an optional security feature to protect routing updates, not a minimum requirement for OSPF operation.
C. The OSPF stub flag is an optional configuration used to define specific area types, not a basic requirement for enabling OSPF on an interface.
D. OSPFv2 operates with IPv4 addresses, while OSPFv3 is designed for IPv6, making an IPv6 address irrelevant for OSPFv2 operation.

Concept tested. OSPFv2 interface configuration requirements

Reference. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/15-mt/iro-15-mt-book/iro-cfg.html

Topics

#OSPFv2#OSPF configuration

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