On the VRP platform, when we introduce IS-IS routing into the OSPF protocol, if COST is not specified, the cost value will be set to 20 by default.

Question

Options

• ATRUE
• BFALSE

• A
  19% (6)
• B
  81% (25)

Explanation

Option B (FALSE) is correct because on Huawei's VRP platform, when redistributing IS-IS routes into OSPF without explicitly specifying a cost, the default external cost value is 1, not 20. The statement is therefore factually incorrect - the value 20 does not apply here.

Option A (TRUE) is wrong precisely because it accepts the false premise that 20 is the default; this is a common trap that conflates Huawei VRP behavior with other vendors or protocols where different default metrics apply.

The confusion likely arises from mixing up platform defaults: on some implementations (like certain Cisco OSPF redistribution scenarios), 20 is associated with default metrics, making it a plausible-but-wrong answer if you're not Huawei-specific in your knowledge.

Memory tip: On Huawei VRP, think "OSPF imports at 1" - the lowest meaningful cost, reflecting that the platform lets you override it upward. Any time an exam question cites 20 as a VRP OSPF import default, that's the red flag to pick FALSE.

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