What field in IP packet is used for classification by QOS？

How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）

QoS機(jī)制中的分類，采用ip數(shù)據(jù)包中的哪個字段？

When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?（）

Refer to the exhibit.Which statement describes DLCI 17?（）

what is four ospf area type？

Refer to the exhibit.The network administrator is in acampus building distant from Building B.WANRouter is hosting a newly installed WAN link on interface S0/0.The new link is not functioning and the administrator needs to determine if the correct cable has been attached to the S0/0 interface.How can the administrator accurately verify the correct cable type on S0/0 in the most efficient manner?（）

what is the advantage of policing opposite to shaping？

what is the disadvantage of policing？

Refer to the exhibit.What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown？（）