mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Router R1 has the following configuration: ```…
Router R1 has the following configuration:
```
interface GigabitEthernet0/1 ip address 10.1.1.1 255.255.255.0 ip policy route-map PBR-OUT
! route-map PBR-OUT permit 10 match ip address 100 set ip next-hop 192.168.1.1 !
access-list 100 permit ip host 10.1.1.100 any
``` What is the effect of this configuration?
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
✓
Packets received on GigabitEthernet0/1 from source 10.1.1.100 are forwarded to next-hop 192.168.1.1.
The route-map is applied as an inbound policy on the interface, but the name 'PBR-OUT' suggests outbound, which is misleading. However, the 'ip policy route-map' command applies to incoming packets on that interface. The ACL matches source 10.1.1.100 to any destination, and sets next-hop 192.168.1.1.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Packets received on GigabitEthernet0/1 from source 10.1.1.100 are forwarded to next-hop 192.168.1.1.
Why this is correct
The route-map is applied inbound, so packets arriving on this interface from 10.1.1.100 are policy-routed to 192.168.1.1.
- ✗
Packets transmitted out of GigabitEthernet0/1 to destination 10.1.1.100 are forwarded to next-hop 192.168.1.1.
Why it's wrong here
PBR is applied to incoming packets, not outgoing. The direction is inbound on the interface.
- ✗
All packets from 10.1.1.100 are dropped because the route-map does not have a permit statement.
Why it's wrong here
The route-map has a permit statement, so matching packets are allowed and policy-routed.
- ✗
The configuration is invalid because the ACL must match destination, not source.
Why it's wrong here
ACLs can match source or destination; matching source is valid for PBR.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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