CCIE系列认证章节练习(2018.07.23)

A.Attempt to TELNET from the router connected to the inside of the firewall to the router connected to the outside of the firewall.If telnet works，BGP will work，since telnet and BGP both use TCP to transport data
B.Ping from the router connected to the inside interface of the firewall to the router connected to the outside interface of the firewall.If you can ping between them，BGP should work，since BGP uses IP to transport packets
C.There is no way to make BGP work across a firewall without special configuration，so there is no simple test that will show you if BGP will work or not，other than trying to start the peering session
D.There is no way to make BGP work across a firewall

A.8192
B.16384
C.49152
D.65535

A.VTP updates are ignored and forwarded out all ports
B.VTP updates are ignored and forwarded out trunks only
C.VTP updates are made to the VLAN database and are forwarded out trunks only
D.VTP updates are ignored and are not forwarded

A.enforce the placement of the root bridge in the network
B.ensure that a port is transitioned to a forwarding state quickly if a BPDU is received
C.enforce the borders of an STP domain
D.ensure that any BPDUs received are forwarded into the STP domain

A.learning state
B.listening state
C.forwarding state
D.root-inconsistent state

A.one global STP instance for all VLANs
B.one STP instance for each VLAN
C.one STP instance per set of VLANs
D.one STP instance per set of bridges

A.learning state
B.listening state
C.forwarding state
D.root-inconsistent state