Refer to the exhibit:
The corporate office and branch location have been attached through two non-Cisco routers over a highly reliable WAN connection for over a year. A new Cisco router has been installed to replace the hardware at the branch location. Since the installation, IP communication cannot be verified across the link. Given the output on Branch1Router, what would be a logical first step to take to resolve this problem?
A.
Change the encapsulation on Branch1Router to match CorporateRouter.
B.
Verify successful DCE communication between the two sites.
C.
Ensure an exact match between the bandwidth setting on CorporateRouter and Branch1Router.
D.
Verify Layer 1 communication on the Branch1Router Serial 0/0 interface.
E.
Change the encapsulation on CorporateRouter to HDLC.
F.
Change the bandwidth setting on Branch1Router to match the actual line speed.
Abswer A
HDLC is a Cisco proprietary protocol so we can’t use it when connecting to a non-Cisco router. PPP is the standard protocol that is widely supported and used by many ISPs.
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