When a BGP router is not capable of understanding 4-byte AS numbers， it will see 4-byte AS numbers as a special， reserved， 2-byte AS number in the AS path. Which 2-byte AS number is this reserved one？（）

For the following protocols， which one provides a mechanism to transparently intercept and redirect CIFS traffic from a client to a local Cisco Wida Area Application engine？（）

Which switch port error is an indication of duplex mismatches on 10/100/1000 IEEE 802.3u  Gigabit Ethernet ports？（）

For the following items，what is the mathematical relationship between the committed information  rate （CIR）， committed burst （Bc）， and committed rate measurement interval （Tc）？（）

What are the "bound IP addresses" used for in LDP？（）

Which statement is true of a source that wants to transmit multicast traffic to group 239.1.1.1？（）

What is the command to configure RSVP to reserve up to one-tenth of a Gigabit link， but only allow each individual flow to use 1 MB/s？（）

Which two attributes need to match for two switches to become members of the same MST region？  （）

IEEE 802.1w is a Rapid Spanning Tree Protocol （RSTP） that can be seen as an evolution of the 802.1 standard. What are the port roles described by 802.1w？（）

Policy-based routing allows network administrators to implement routing policies to allow or deny paths based on all of these factors except which one？（）