PracticeLabs
Week 4Section quizRequired8 questions~10 min

Static Routing & Failover

Covers Lesson 3 and Lesson 4

Checks whether you can write a static route that actually forwards — which means getting the form right, the recursion resolvable, and a route on every router in both directions.

Topics covered

  • The three forms of ip route and when each is appropriate
  • Recursive lookup and the dependency it creates
  • Routes needed at every router, in both directions
  • Default routes, floating statics, and administrative distance

Every question here is answerable from the first-party notes of the lessons above. You commit to an answer before you see whether it was right.

This quiz is a Week 4 milestone in its own right. Passing it does not change the completion state of any individual lesson, and you do not need it to finish the lessons it covers.

Section quiz

Static Routing & Failover

8 questions covering Lesson 3 and Lesson 4. Answer each one before you see whether you were right.

Question 1 of 8

1. Why is an exit-interface-only static route risky on multi-access Ethernet but fine on a point-to-point serial link?
2. You configure ip route 10.1.4.0 255.255.255.0 10.1.2.2. What second lookup must the router perform before it can forward?
3. R1 has S 10.1.4.0/24 via 10.1.2.2, resolved through C 10.1.2.0/30 on Gi0/1. An operator shuts Gi0/1. What happens to the static route?
4. R1 — R2 — R3 in a line. R1's LAN is 10.1.1.0/24, R3's LAN is 10.1.4.0/24, and the two transit links are /30s. R1 has a route to 10.1.4.0/24 and R3 has a route back to 10.1.1.0/24. R2 has only its connected routes. Does a ping from R1's LAN to 10.1.4.7 succeed?
5. A forward route is configured perfectly on every router, but the ping still fails. What is the most likely missing piece?
6. A router has S* 0.0.0.0/0 via 203.0.113.1 and S 8.8.8.0/24 via 10.1.2.2. Which route carries a packet to 8.8.8.8?
7. You configure a primary static (AD 1) and a floating static (AD 5) to the same prefix. What does show ip route display while the primary is healthy?
8. You intended a backup path but gave the second static route the same AD as the primary. What did you get instead?