Computer Networking
Which statement describes a spanning-tree network that has converged?

All switch and bridge ports are either blocking or looping.
All switch and bridge ports are assigned as either root or designated ports.
All switch and bridge ports are in either the forwarding or blocking state.
All switch and bridge ports are in the forwarding state.

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Computer Networking
You need to configure a router for a Frame Relay connection to a non-Cisco router. Which of the following commands will prepare the WAN interface of the router for this connection?

Router(config-if)# encapsulation frame-relay ansi
Router(config-if)# encapsulation frame-relay ietf
Router(config-if)# encapsulation frame-relay q933a
Router(config-if)# encapsulation frame-relay cisco

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Computer Networking
The Internet Control Message Protocol (ICMP)

allows gateways to send error a control messages to other gateways or hosts
All of these
provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem
None of these

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