BGP is an exterior gateway protocol and uses what for its metrics?

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Multiple Choice

BGP is an exterior gateway protocol and uses what for its metrics?

Explanation:
BGP doesn’t rely on simple numeric metrics like bandwidth, latency, or hop count. Instead, it makes routing decisions based on a set of path attributes that describe each route and can be shaped by the administrator. Operators influence which path is preferred by manually configuring these attributes (for example, setting local preference, MED, or using policy via route maps). Because the route choice is driven by admin-configured attributes rather than automatic measurements, the effective “metric” in BGP is essentially manual input. The other options refer to metrics that BGP does not use to decide the best path.

BGP doesn’t rely on simple numeric metrics like bandwidth, latency, or hop count. Instead, it makes routing decisions based on a set of path attributes that describe each route and can be shaped by the administrator. Operators influence which path is preferred by manually configuring these attributes (for example, setting local preference, MED, or using policy via route maps). Because the route choice is driven by admin-configured attributes rather than automatic measurements, the effective “metric” in BGP is essentially manual input. The other options refer to metrics that BGP does not use to decide the best path.

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