Refer to the Exhibit

question 64

Multiple Choice

Refer to the exhibit. Which statement about the status of the neighbor relationship between R1 and R2 is true?

• A) The neighbor relationship is down because the two routers are configured with different area types.
• B) The neighbor relationship is down because the two routers are in the same subnet.
• C) The neighbor relationship is up because R2 is level 1 and Ievel 2 router.
• D) The neighbor relationship is down because R2 is operating as a Level 1 router and the two routers are in different areas.

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Definitions:

Keystone Species

Species that have a disproportionately large impact on their environment relative to their abundance, crucial for ecosystem structure and function.

Indicator

A measurable variable used to demonstrate the progress toward achieving a specified goal or to assess the condition of a particular aspect of an ecosystem or economy.

Ecosystem Structure

The arrangement of biotic and abiotic components within an ecosystem, determining how it functions and supports life.