- A
Create an access list matching source 192.168.1.0/24, a route-map with set ip next-hop 203.0.113.2, and apply the route-map inbound on GigabitEthernet0/0.
This is correct because PBR uses a route-map to override the routing table for specified traffic. The access list identifies the source subnet, the route-map sets the next-hop to 203.0.113.2, and applying it inbound on G0/0 ensures traffic entering from that subnet follows the policy.
- B
Create an access list matching source 192.168.1.0/24, a route-map with set ip next-hop 203.0.113.2, and apply the route-map outbound on GigabitEthernet0/1.
Why wrong: This is incorrect because PBR is applied inbound on the interface where traffic enters the router, not outbound. Applying it outbound on G0/1 would not affect traffic from 192.168.1.0/24 entering via G0/0.
- C
Create an access list matching destination 203.0.113.2, a route-map with set ip next-hop 203.0.113.2, and apply the route-map inbound on GigabitEthernet0/0.
Why wrong: This is incorrect because the access list should match the source subnet (192.168.1.0/24), not the destination. Matching destination 203.0.113.2 would only affect traffic destined to that IP, not traffic from the specified source.
- D
Configure a static route for 192.168.1.0/24 with next-hop 203.0.113.2 and rely on the default route for other traffic.
Why wrong: This is incorrect because a static route would affect all traffic from R1 to 192.168.1.0/24, not traffic from that subnet going to the Internet. The static route would be used for traffic destined to 192.168.1.0/24, not sourced from it.
Quick Answer
The correct implementation is to create an access list matching source 192.168.1.0/24, a route-map with set ip next-hop 203.0.113.2, and apply the route-map inbound on GigabitEthernet0/0. This works because policy-based routing (PBR) allows you to override the default route for specific traffic by evaluating packets against a route-map before consulting the routing table; the access list identifies the source subnet, the route-map sets an alternative next-hop, and applying it inbound on the interface receiving that traffic ensures the policy is enforced at the point of entry. On the CCNA 200-301 v2 exam, this scenario tests your understanding of PBR as a traffic-engineering tool distinct from static or dynamic routing—a common trap is applying the route-map outbound or on the wrong interface, which would never match incoming traffic. Remember the key sequence: match the source with an ACL, set the next-hop in a route-map, and apply it inbound on the ingress interface. A useful memory tip is “ACL to match, route-map to dispatch, inbound on the interface that catches.”
CCNA IP Routing Practice Question
This 200-301 practice question tests your understanding of ip routing. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
You are connected to R1 via the console. R1 is a newly deployed router that connects two subnets: 192.168.1.0/24 on GigabitEthernet0/0 and 192.168.2.0/24 on GigabitEthernet0/1. There is a default route to the Internet via ISP router at 203.0.113.1, but the network policy requires that traffic from 192.168.1.0/24 to the Internet must exit via a different next-hop 203.0.113.2. You need to implement policy-based routing on R1 to forward traffic from source 192.168.1.0/24 to 203.0.113.2, while all other traffic uses the default route via 203.0.113.1.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create an access list matching source 192.168.1.0/24, a route-map with set ip next-hop 203.0.113.2, and apply the route-map inbound on GigabitEthernet0/0.
Policy-based routing (PBR) allows overriding the routing table for specific traffic. The access list identifies traffic from 192.168.1.0/24, the route-map sets the next-hop to 203.0.113.2, and applying it to the incoming interface G0/0 ensures that traffic entering from that subnet follows the policy.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create an access list matching source 192.168.1.0/24, a route-map with set ip next-hop 203.0.113.2, and apply the route-map inbound on GigabitEthernet0/0.
Why this is correct
This is correct because PBR uses a route-map to override the routing table for specified traffic. The access list identifies the source subnet, the route-map sets the next-hop to 203.0.113.2, and applying it inbound on G0/0 ensures traffic entering from that subnet follows the policy.
Related concept
CIDR notation defines the prefix length.
- ✗
Create an access list matching source 192.168.1.0/24, a route-map with set ip next-hop 203.0.113.2, and apply the route-map outbound on GigabitEthernet0/1.
Why it's wrong here
This is incorrect because PBR is applied inbound on the interface where traffic enters the router, not outbound. Applying it outbound on G0/1 would not affect traffic from 192.168.1.0/24 entering via G0/0.
- ✗
Create an access list matching destination 203.0.113.2, a route-map with set ip next-hop 203.0.113.2, and apply the route-map inbound on GigabitEthernet0/0.
Why it's wrong here
This is incorrect because the access list should match the source subnet (192.168.1.0/24), not the destination. Matching destination 203.0.113.2 would only affect traffic destined to that IP, not traffic from the specified source.
- ✗
Configure a static route for 192.168.1.0/24 with next-hop 203.0.113.2 and rely on the default route for other traffic.
Why it's wrong here
This is incorrect because a static route would affect all traffic from R1 to 192.168.1.0/24, not traffic from that subnet going to the Internet. The static route would be used for traffic destined to 192.168.1.0/24, not sourced from it.
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.
✓Create an access list matching source 192.168.1.0/24, a route-map with set ip next-hop 203.0.113.2, and apply the route-map inbound on GigabitEthernet0/0.Correct answer▾
Why this is correct
This is correct because PBR uses a route-map to override the routing table for specified traffic. The access list identifies the source subnet, the route-map sets the next-hop to 203.0.113.2, and applying it inbound on G0/0 ensures traffic entering from that subnet follows the policy.
✗Create an access list matching source 192.168.1.0/24, a route-map with set ip next-hop 203.0.113.2, and apply the route-map outbound on GigabitEthernet0/1.Wrong answer — click to see why▾
Why this is wrong here
PBR must be applied inbound on the interface receiving the traffic, not outbound on the exit interface.
Why candidates choose this
Candidates may think PBR is applied on the exit interface because it affects forwarding, but the correct application is inbound.
✗Create an access list matching destination 203.0.113.2, a route-map with set ip next-hop 203.0.113.2, and apply the route-map inbound on GigabitEthernet0/0.Wrong answer — click to see why▾
Why this is wrong here
PBR uses the access list to match traffic based on source, destination, or other criteria; here the requirement is to match source subnet.
Why candidates choose this
Candidates might confuse the matching criteria and think they need to match the next-hop address as a destination.
✗Configure a static route for 192.168.1.0/24 with next-hop 203.0.113.2 and rely on the default route for other traffic.Wrong answer — click to see why▾
Why this is wrong here
A static route controls forwarding based on destination, not source. Policy-based routing is needed to forward based on source address.
Why candidates choose this
Candidates may think a static route can be used to direct traffic from a specific source, but static routes are destination-based.
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: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related 200-301 subnetting questions on CIDR, address ranges, and subnet selection.
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FAQ
Questions learners often ask
What does this 200-301 question test?
IP Routing — This question tests IP Routing — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Create an access list matching source 192.168.1.0/24, a route-map with set ip next-hop 203.0.113.2, and apply the route-map inbound on GigabitEthernet0/0. — Policy-based routing (PBR) allows overriding the routing table for specific traffic. The access list identifies traffic from 192.168.1.0/24, the route-map sets the next-hop to 203.0.113.2, and applying it to the incoming interface G0/0 ensures that traffic entering from that subnet follows the policy.
What should I do if I get this 200-301 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related 200-301 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Last reviewed: Jun 7, 2026
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