Compare and Contrast Policy-Based Routing (PBR) and Traditional Routing POWERSWITCH-CAMPUS-DEPLOY Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   How does traditional routing handle link failures?

   • AIt uses routing protocols to update the routing table and converge on an alternate path.
   • BIt requires manual intervention to change the routing table.
   • CIt drops all traffic until the link is restored.
   • DIt uses PBR policies to redirect traffic to a backup next hop.
   Reveal Solution Discussion Select an answer first
2. 27application · medium

   A small campus network has two VLANs and a single router connecting to the ISP. All internal subnets are directly connected, and the only external route is a default route. The network is stable and there are no special traffic requirements. What is the most appropriate routing approach for this network?

   • AUse dynamic routing protocols like OSPF to advertise the default route.
   • BConfigure PBR to enforce security policies on inter-VLAN traffic.
   • CImplement PBR to load balance traffic between the two VLANs.
   • DUse traditional destination-based routing with static routes and a default route.
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4. 28application · medium

   A network administrator is comparing the configuration effort for a new campus network. The network has three VLANs and a single upstream router. There are no special traffic requirements. What is the main advantage of using traditional routing over PBR in this scenario?

   • ATraditional routing provides more granular control over traffic paths.
   • BTraditional routing automatically load balances across multiple links.
   • CTraditional routing requires less configuration because it only needs routing table entries, not policy definitions.
   • DTraditional routing can match on source IP to influence path selection.
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5. 29application · medium

   A campus network has multiple internet links. The administrator wants to send all traffic from the guest VLAN to a specific ISP that provides content filtering, while all other traffic uses a different ISP. The network uses OSPF for internal routing. What is the best approach?

   • AConfigure PBR on the guest VLAN's ingress interface to match the source and set the next hop to the content-filtering ISP.
   • BUse OSPF to advertise a default route with a lower metric for the guest VLAN.
   • CCreate a static route for the guest VLAN subnet pointing to the content-filtering ISP.
   • DConfigure a policy on the ISP router to filter content for guest traffic.
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6. 30foundation · easy

   How does PBR interact with dynamic routing protocols?

   • APBR works alongside dynamic routing protocols, using the routing table as a fallback when no policy matches.
   • BPBR prevents dynamic routing protocols from updating the routing table.
   • CPBR replaces dynamic routing protocols and requires static routes for all destinations.
   • DPBR updates the routing table with new routes learned from policies.
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