This 200-301 practice question tests your understanding of ip routing. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Network Topology
You are connected to R1. Configure static routes so that R1 can reach the IPv4 network 203.0.113.0/24 and the IPv6 network 2001:db8:acad:1::/64 via R2 (G0/0 10.0.0.2/30). Additionally, configure a floating static default route (IPv4) with an administrative distance of 200 via R2, and a fully specified IPv6 default route via R2. Then, verify that the IPv4 static route to 203.0.113.0/24 is correctly installed by checking the routing table. The current configuration has an incorrect next-hop causing recursive routing failure for the IPv4 static route.
R1# show running-config | section ip route
ip route 203.0.113.0 255.255.255.0 10.0.0.1
ip route 0.0.0.0 0.0.0.0 10.0.0.2 200
!
ipv6 route 2001:db8:acad:1::/64 10.0.0.2
ipv6 route ::/0 10.0.0.2
!
R1# show ip route static
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
R1# show ipv6 route static
IPv6 Routing Table - default - 3 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
U - Per-user Static route, M - MIPv6
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext type 1, OE2 - OSPF ext type 2
ON1 - OSPF NSSA ext type 1, ON2 - OSPF NSSA ext type 2
D - EIGRP, EX - EIGRP external
S ::/0 [1/0]
via 10.0.0.2
S 2001:db8:acad:1::/64 [1/0]
via 10.0.0.2
A
Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, change the IPv6 static route next-hop from 10.0.0.2 to 2001:db8:acad:2::2, and change the IPv6 default route to use next-hop 2001:db8:acad:2::2.
This corrects all errors: the IPv4 route uses the correct next-hop (R2's interface), the IPv6 route uses a valid IPv6 next-hop, and the IPv6 default route is fully specified with an IPv6 next-hop. After these changes, the IPv4 route will be installed in the routing table.
B
Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, and change the IPv6 static route to use exit interface G0/0 instead of a next-hop.
Why wrong: This is incorrect because while the IPv4 fix is correct, the IPv6 static route using an exit interface is not fully specified and may cause issues if the interface goes down; also, the IPv6 default route is not addressed.
C
Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, and change the IPv4 default route administrative distance to 1.
Why wrong: This is incorrect because the IPv4 default route is intended to be a floating route with AD 200; changing it to 1 would make it preferred over other routes, defeating the purpose of a floating route.
D
Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, and change the IPv6 default route to use exit interface G0/0.
Why wrong: This is incorrect because the IPv6 default route should be fully specified with an IPv6 next-hop address, not just an exit interface; using only an exit interface can cause recursive routing issues.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, change the IPv6 static route next-hop from 10.0.0.2 to 2001:db8:acad:2::2, and change the IPv6 default route to use next-hop 2001:db8:acad:2::2.
The IPv4 static route to 203.0.113.0/24 incorrectly uses next-hop 10.0.0.1 (R1's own interface) instead of 10.0.0.2 (R2), causing recursive routing failure because R1 tries to reach itself. To fix, change the next-hop to 10.0.0.2. The IPv6 static route to 2001:db8:acad:1::/64 also incorrectly uses an IPv4 next-hop; it must be a fully specified IPv6 next-hop (2001:db8:acad:2::2) or an exit interface. The IPv4 default route has AD 200 which is correct for a floating route, but it is not shown in the routing table because there is no route to the next-hop; after fixing the recursive route, the default route will appear. The IPv6 default route uses an IPv4 next-hop which is invalid; it should be a fully specified IPv6 route (e.g., ipv6 route ::/0 2001:db8:acad:2::2).
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, change the IPv6 static route next-hop from 10.0.0.2 to 2001:db8:acad:2::2, and change the IPv6 default route to use next-hop 2001:db8:acad:2::2.
Why this is correct
This corrects all errors: the IPv4 route uses the correct next-hop (R2's interface), the IPv6 route uses a valid IPv6 next-hop, and the IPv6 default route is fully specified with an IPv6 next-hop. After these changes, the IPv4 route will be installed in the routing table.
Related concept
Read the scenario before looking for a memorised answer.
✗
Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, and change the IPv6 static route to use exit interface G0/0 instead of a next-hop.
Why it's wrong here
This is incorrect because while the IPv4 fix is correct, the IPv6 static route using an exit interface is not fully specified and may cause issues if the interface goes down; also, the IPv6 default route is not addressed.
✗
Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, and change the IPv4 default route administrative distance to 1.
Why it's wrong here
This is incorrect because the IPv4 default route is intended to be a floating route with AD 200; changing it to 1 would make it preferred over other routes, defeating the purpose of a floating route.
✗
Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, and change the IPv6 default route to use exit interface G0/0.
Why it's wrong here
This is incorrect because the IPv6 default route should be fully specified with an IPv6 next-hop address, not just an exit interface; using only an exit interface can cause recursive routing issues.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
✓Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, change the IPv6 static route next-hop from 10.0.0.2 to 2001:db8:acad:2::2, and change the IPv6 default route to use next-hop 2001:db8:acad:2::2.Correct answer▾
Why this is correct
This corrects all errors: the IPv4 route uses the correct next-hop (R2's interface), the IPv6 route uses a valid IPv6 next-hop, and the IPv6 default route is fully specified with an IPv6 next-hop. After these changes, the IPv4 route will be installed in the routing table.
✗Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, and change the IPv6 static route to use exit interface G0/0 instead of a next-hop.Wrong answer — click to see why▾
Why this is wrong here
The IPv6 static route should use a fully specified next-hop (IPv6 address) rather than just an exit interface to avoid recursive routing failures.
Why candidates choose this
Candidates may think using an exit interface is simpler, but for IPv6 static routes, a fully specified route (next-hop and exit interface) is often required for reliability.
✗Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, and change the IPv4 default route administrative distance to 1.Wrong answer — click to see why▾
Why this is wrong here
Floating static routes require a higher administrative distance (e.g., 200) so they are only used when the primary route is unavailable.
Why candidates choose this
Candidates might think a lower AD is always better, but floating routes specifically need a higher AD to serve as backup.
✗Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, and change the IPv6 default route to use exit interface G0/0.Wrong answer — click to see why▾
Why this is wrong here
A fully specified IPv6 static route includes both the exit interface and the next-hop IPv6 address to ensure proper routing.
Why candidates choose this
Candidates may recall that for directly connected networks, an exit interface alone works, but for default routes, a next-hop is required to avoid recursive lookup failures.
Analysis generated from the official 200-301blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 200-301 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 200-301 question in full detail.
Identify which 200-301 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
IP Routing — This question tests IP Routing — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Change the IPv4 static route next-hop from 10.0.0.1 to 10.0.0.2, change the IPv6 static route next-hop from 10.0.0.2 to 2001:db8:acad:2::2, and change the IPv6 default route to use next-hop 2001:db8:acad:2::2. — The IPv4 static route to 203.0.113.0/24 incorrectly uses next-hop 10.0.0.1 (R1's own interface) instead of 10.0.0.2 (R2), causing recursive routing failure because R1 tries to reach itself. To fix, change the next-hop to 10.0.0.2. The IPv6 static route to 2001:db8:acad:1::/64 also incorrectly uses an IPv4 next-hop; it must be a fully specified IPv6 next-hop (2001:db8:acad:2::2) or an exit interface. The IPv4 default route has AD 200 which is correct for a floating route, but it is not shown in the routing table because there is no route to the next-hop; after fixing the recursive route, the default route will appear. The IPv6 default route uses an IPv4 next-hop which is invalid; it should be a fully specified IPv6 route (e.g., ipv6 route ::/0 2001:db8:acad:2::2).
What should I do if I get this 200-301 question wrong?
Identify which 200-301 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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