A.excessive collisions
B.FCS errors
C.runts
D.late collisions

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

A.Set the NHRP hold time to match the EIGRP hold time
B.Add the enable eigrp stub command
C.Add the disable eigrp as-member split-horizon command
D.Add the disable eigrp as-member next-hop-self command

A.NBAR provides the ability to configure MCQ； it is a mandatory MCQ component.
B.NBAR provides deep packet inspection and is used for advanced packet classification.
C.NBAR provides per-protocol packet and byte accounting functionality； it is used to track bandwidth utilization for all protocols described in the loaded PDLMs.
D.NBAR provides scheduling in an MQC policy map using an advanced algorithm.

A.IP ToS of 0xEF
B.IP experimental ECN
C.DSCP decimal 5
D.Binary value of 101110

A.Cisco
B.ANSI-Annex D
C.Q.931-Annex B
D.Q.933-Annex A