A.The MPLS header is 2 bytes，and the EXP field is 3 bits long.
B.The MPLS header is 1 byte，and the EXP field is 3 bits long.
C.The MPLS header is 4 bytes，and the EXP field is 3 bits long.
D.The MPLS header is 3 bytes，and the EXP field is 3 bits long.
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A.RED randomly drops packets before the queue becomes full.
B.RED is always useful，without dependency on flow.
C.RED increases the drop rate as the average queue size increases.
D.RED has a per-flow intelligence.
A.ip rsvp bandwidth 100000 1000
B.ip rsvp bandwidth 100000 1
C.ip rsvp bandwidth 10 1
D.ip rsvp bandwidth 1000000 1000
A.HTTP
B.RTP
C.streaming video
D.BitTorrent
E.POP3
A.all active AVF routers as the first response is used by the client
B.the AVG router，replying with a different AVF MAC address each time
C.a random AVF router，based on a GLBP seed hash key
D.only the AVG router that received the ARP request first
A.It works well with a multihomed environment.
B.It will inspect IP packets that are encapsulated in tunnels， such as GRE，LT2P，or PPTP.
C.uRPF is performed within the CEF switching path.
D.There might be a problem with DHCP as Unicast RPF is blocking packets with a 0.0.0.0 sourceaddress.
最新試題
Which two statements about SA caching are true？（）
What is true about Unicast RPF in strict mode？（）
Which three options are valid ways to filter routes from a BGP peer？（）
All of these are fundamental building blocks of differentiated services Traffic Conditioner Block exceptwhich one？（）
Which of these statements about penultimate hop popping are true？（）
Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree ProtocolIEEE 802.1 D？（）
Spanning Tree Protocol IEEE 802.1 s defines the ability to deploy which of these？（）
Which message type is constructed and sent from an MSDP router to its MSDP peers when it receives a PIM register message knowing that the MSDP router is also configured as an RP for the PIM domain？（）
Which three protocols or applications should be placed in a class that is configured with WRED？（）
Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is notconfigured as a route reflector？（）