A router receives multiple route advertisements for the same destination network from different sources. All routes have identical prefixes. Which criterion does the router use to determine the route to install in its routing table?
The route with the longest uptime
The route received from the source with the lowest administrative distance
The route learned via the interface with the lowest bandwidth
When a router has multiple routes to the same destination with identical prefixes, it first uses administrative distance (AD) to determine which route to install. Administrative distance is a value representing the trustworthiness of the route's source; the lower the AD, the more preferred the route. Therefore, the router selects the route from the source with the lowest administrative distance. If multiple routes share the same lowest AD, the router then uses the metric to break the tie. Factors like the next-hop IP address value, interface bandwidth (which is a component of the metric for some protocols), or route uptime are not the primary criteria in this specific decision step.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is administrative distance?
Open an interactive chat with Bash
How does administrative distance affect routing decisions?
Open an interactive chat with Bash
What are some common routing protocols and their administrative distances?
Open an interactive chat with Bash
Cisco CCNA 200-301
IP Connectivity
Your Score:
Report Issue
Bash, the Crucial Exams Chat Bot
AI Bot
Loading...
Loading...
Loading...
IT & Cybersecurity Package Join Premium for Full Access