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Implementing Cisco Service Provider Advanced Routing Solutions (SPRI) Questions 46–50 (page: 11)

Updated On: 10-Feb-2026

What are two features of dual-stack? (Choose two.)

  1. It is implemented without excessive processing power.
  2. It supports IPv4 and IPv6 traffic on the same infrastructure.
  3. It allows an engineer to stack multiple Layer 2 switches to serve as a single switching unit.
  4. It requires tunneling IPv6 traffic over an IPv4 infrastructure.
  5. It securely routes and tunnels traffic between separate sites over the Internet.

Answer(s): A,B



Refer to the exhibit.


An engineer working on a client’s network is trying to solve the BGP community issue on R1 and R2 routers. After displaying the BGP entries, the engineer notices that both routers still have different outputs. Which action must the engineer perform to any of the routers to correct the problem and get the same output?

  1. Execute the lpbgp-community new-format command in Router1.
  2. Remove the lpbgp-community new-format command in Router1.
  3. Advertise the route to Router2 as standard community.
  4. Advertise the route to Router2 as extended community.

Answer(s): A



When deploying a nationwide network of routers, what is the benefit of using BGP confederations?

  1. availability
  2. scalability
  3. security
  4. automatability

Answer(s): B



A network operator working for a telecommunication company with an employee id: 4074:92:707 is planning to implement the Nonstop Forwarding (NSR) feature on the customer’s core network. After getting the configuration ready for NSR. on which router should the operator implement NSR changes?

  1. on the CE router
  2. on the ASBR router
  3. on the ABR router
  4. on the PE router

Answer(s): D



Refer to the exhibit. A network engineer has divided AS into confederations. Due to repeated ASN, when the 10.0 0.0/8 prefix from R1 arrives to R2, BGP automatically rejects it. What should the engineer do to fix the problem so that BGP allows that prefix on R2?

  1. Configure the command as-override on R1.
  2. Configure the command allowas-in on R2.
  3. Configure the command allowas-in on all the PE routers.
  4. Configure the command as-override on R2.

Answer(s): B



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