A.excessive collisions
B.FCS errors
C.runts
D.late collisions
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A.BPDUs that enter a blocking port are discarded.
B.BPDUs that enter a blocking port are processed.
C.Loopguard puts an interface into a loop-inconsistent state when BPDUs stop being received on a blocking port.
D.BPDUs are only processed on forwarding ports.
A.The CBWFQ scheduler provides a guaranteed minimum amount of bandwidth to each class.
B.CBWFQ services each class queue using a strict priority scheduler.
C.The class-default queue only supports WFQ.
D.Inside a class queue， processing is always FIFO， except for the class-default queue.
A.It is a function used by routing protocols to install routes into routing table
B.It is a function that prevents the advertising of routes over an interface that the router is usingto reach a route
C.Its function is to help avoid routing loops.
D.It is a redistribution technique used by routing protocols
A.An update packet with init flag set from a known， already established neighbor relationship was received by one of the routers.
B.The counters were deleted.
C.The ARP cache was removed.
D.The IP EIGRP neighbor relationship was cleared manually.
A.Area 0
B.NSSA
C.Totally stubby
D.Stub
最新試題
Which IOS security feature is configured by the ip inspect inspection-name {in out} command？（）
For the following ports， which port is on every bridge in a Spanning Tree Protocol IEEE 802.1w network except the root bridge？（）
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 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？（）
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？（）
Which one of the following potential issues is eliminated by using split horizon？（）
Which QoS mechanism can help classify different kinds of Citrix traffic （print job versus real-time terminal control）？（）
Which switch port error is an indication of duplex mismatches on 10/100/1000 IEEE 802.3u Gigabit Ethernet ports？（）
Which three protocols should be explicitly managed by using Control Plane Policing on an Internet border router？（）
You are the network administrator of an enterprise company that just deployed a global IP telephony environment. In order to guarantee good voice quality， you asked your provider to implement QoS on the CE routers of your MPLS network. On your LAN， you have also deployed QoS. Users， however， keep complaining about bad voice quality， and the provider does not see matches on the DSCP values that you have asked him to match upon. What is most likely the problem？（）