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Build and prove WAN route failover

Interpret competing routes, add a floating static backup, and validate both failure and recovery paths.

Estimated14 min
DifficultyAdvanced
Points12
Scenario brief

Juniper Street Books uses OSPF over its primary WAN and a metered Ethernet handoff as backup. The backup must remain out of the routing table while the OSPF default is present, then take over during a controlled outage.

Content record

Preview · not independently reviewed

Mapped to Cisco 200-301 objectives · Internal validation 2026-08-13 · Available as preview practice, but a named independent subject-matter expert has not yet verified the question and answer key.

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3.1Interpret the components of a routing table. 3.2Determine how a router makes a forwarding decision by default. 3.3Configure and verify IPv4 and IPv6 static routing.
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Method: Mapped to CCNA v1.1 objectives 3.1 through 3.3; longest-prefix selection, administrative distance, floating static syntax, and failover checks were validated against Cisco documentation.

Current-profile check: 2026-08-12 · Next review due 2027-02-08

01

Inspect the evidence

Use only the information provided to complete the tasks.

BR1 — show ip route (abridged)

code
Gateway of last resort is 192.0.2.1 to network 0.0.0.0
O*E2 0.0.0.0/0 [110/20] via 192.0.2.1, GigabitEthernet0/0
O    10.44.16.0/20 [110/30] via 192.0.2.1, GigabitEthernet0/0
S    10.44.18.0/24 [5/0] via 10.0.0.5
S    10.44.18.32/27 [200/0] via 10.0.0.9
C    198.51.100.0/30 is directly connected, GigabitEthernet0/1

Backup requirements

list
  • ›Backup next hop: 198.51.100.2
  • ›The OSPF default route has administrative distance 110.
  • ›Use administrative distance 200 for the backup default.
  • ›Prove failover and restoration without saving a deliberately failed test state.
02

Complete the response

Partial credit is available for matching, ordering, and multi-select tasks.

01
single choice

Which route forwards a packet destined for 10.44.18.37?

3 pts
Need a hint?

Restate the exact outcome or failure the prompt asks about before comparing choices.

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Eliminate choices that solve a nearby problem, change more than requested, or do not fit the evidence.

02
command

Enter the global configuration command for the required floating static IPv4 default route.

4 pts

Whitespace and capitalization are ignored when grading.

Need a hint?

Break the request into three parts: the action, the target, and the required constraint or verification.

Show another hint

Check the tool and subcommand first, then add only the flags, values, and paths the prompt requires.

03
ordering

Order the safest failover validation sequence after staging the route.

5 pts

Drag the rows or use the arrow buttons to reorder.

  1. 1 Record the OSPF default, next hop, reachability, and current interface state
  2. 2 Add the AD 200 route and confirm it is absent from the active table while OSPF is healthy
  3. 3 During the window, disable the primary test link and wait for OSPF withdrawal
  4. 4 Verify the static default appears via 198.51.100.2 and test end-to-end traffic
  5. 5 Re-enable the primary, verify OSPF wins again, then save the intended configuration and document results
Need a hint?

Identify the prerequisite that must happen first and the verification or documentation that belongs last.

Show another hint

For the middle steps, ask what must already be true before each action can safely happen.

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