170-010 · Question #95
In which situation would the use of a static route be appropriate?
The correct answer is B. To configure a route from an ISP router into a corporate network. Exam Questions, Study Guides, Practice Tests. Lead the way to help you pass any IT Certification exams, 100% Pass Guaranteed or Full Refund. Especially Cisco, CompTIA, Citrix, EMC, HP, Oracle, VMware, Juniper, Check Point, LPI, Nortel, EXIN and so on. Our Slogan: First Test…
Question
In which situation would the use of a static route be appropriate?
Options
- ATo configure a route to the first Layer 3 device on the network segment.
- BTo configure a route from an ISP router into a corporate network.
- CTo configure a route when the administrative distance of the current routing protocol is too low.
- DTo reach a network is more than 15 hops away.
- ETo provide access to the Internet for enterprise hosts.
How the community answered
(47 responses)- A6% (3)
- B79% (37)
- C2% (1)
- D11% (5)
- E2% (1)
Explanation
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Topics
Community Discussion
9
Bartosz H.Jun 7, 2026B is your answer, and it makes perfect sense once you think about how ISP handoffs actually work. The ISP router advertising a default or summary route into your corporate edge is a textbook static route use case because that link is a stub, there is no topology to converge, and you do not want your IGP leaking out to the provider or vice versa. Static routes shine at trust boundaries where you control exactly one path and dynamic protocol overhead buys you nothing. The other options are traps: A describes a default gateway concept, not a static route justification; C has the admin distance logic backwards since a lower AD means more trusted, not less; D is a hard disqualifier for anything running RIP since 15 hops is the maximum and 16 is unreachable, but modern IGPs handle that fine with dynamic routing anyway; and E, while enterprises do use a static default route to the internet, the question asks about an ISP router pointing into the corporate network, which is exactly what B describes.
Yusuf A.Jun 9, 2026Good breakdown on C, and worth adding that if you actually want a static to lose against a dynamic protocol under normal conditions you bump its AD above the IGP value on purpose, which is the whole point of a floating static route for backup links, something my senior had me lab out last week so it would stick.
Yusuf A.Jun 14, 2026B makes total sense here. When an ISP router needs to hand off traffic into a corporate network, that path is not going to change on its own, so a static route is exactly what you configure because there is no need to run a dynamic protocol just to point traffic in one fixed direction.
Haruki E.Jun 26, 2026E trips up a lot of people because a static default route pointed at the ISP is absolutely something you configure on the enterprise edge, but the question is asking which scenario makes static routing appropriate as a design choice, and B nails it because the ISP has a clean, stable view of your allocated prefix block and simply points a static toward your PE or CPE with no need for a full routing protocol adjacency. Land on B.
Bartosz H.Jun 29, 2026B is correct and your logic holds, though I would add that the ISP static toward your CPE only stays clean as long as your allocated block never gets renumbered or split mid-contract, which is the one real-world gotcha the exam writers conveniently ignore.
Mei-Ling H.Jun 26, 2026I pick A because when you need a simple, direct path to the first Layer 3 device on the segment, like a default gateway situation, a static route is the clean solution with no overhead from a routing protocol. The word "first" in option A is the key qualifier that points you toward a single, predictable hop where a static route makes total sense and does not need to be dynamic at all.
Yusuf A.Jun 27, 2026Hey Mei-Ling, I see where you are coming from on that, but our senior actually walked me through why B is the right pick here, because the question is describing a scenario where the path needs to adapt or the device count goes beyond a single hop, so a static route would break down where a dynamic approach in B holds up.
Lena V.Jun 26, 2026C makes sense because a lower AD means the protocol already wins, so you swap it out with a static.
Bartosz H.Jun 27, 2026Lena, the whole point of a floating static is that you set its AD HIGHER than the dynamic protocol so the dynamic route stays preferred and the static only kicks in when that route disappears, which is exactly what B describes.