200-301 · Question #1655
200-301 Question #1655: Real Exam Question with Answer & Explanation
The correct answer is B: ip route 0.0.0.0 0.0.0.0 192.168.1.1 25. Setting the administrative distance to 25 ensures this static default route is used only if no better route (such as one learned from an external routing protocol like BGP with a default AD of 20) is available. This allows the WAN circuit route to take precedence automatically.
Question
A default route must be configured to temporarily use a local broadband modem with the IP address of 192.168.1.1 until a WAN circuit is installed. The WAN circuit will use an external routing protocol that exchanges network prefixes between two separate autonomous systems on the internet. Only a default route will be received by the ISP. Which configuration must be applied to allow the new WAN circuit to take precedence when it is in place?
Options
- Aip route 0.0.0.0 0.0.0.0 192.168.1.1 track 1
- Bip route 0.0.0.0 0.0.0.0 192.168.1.1 25
- Cip route 0.0.0.0 0.0.0.0 192.168.1.1 20
- Dip route 0.0.0.0 0.0.0.0 192.168.1.1
Explanation
Setting the administrative distance to 25 ensures this static default route is used only if no better route (such as one learned from an external routing protocol like BGP with a default AD of 20) is available. This allows the WAN circuit route to take precedence automatically.
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