Which is the best way for PC A and PC B to successfully communicate with sites on the Internet?

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#1

Refer to the exhibit. Which is the best way for PC A and PC B to successfully communicate with sites on the Internet?

com

  1. Configure a static route from R1 to ISP and a dynamic route from ISP to R1.
  2. Configure a default route from R1 to ISP and a static route from ISP to R1.*
  3. Configure a dynamic route from R1 to ISP and a static route from ISP to R1.
  4. Configure a routing protocol between R1 and ISP and advertise all the routes.