在1919年巴黎和会上，美国总统威尔逊因博学多才、工于辞令而享有“百灵鸟”之称，但其美好的幻想一旦

A.VLAN1003

B.VLAN1

C.VLANON

D.VLANA

E.VLAN0

A.There is a mismatch in encapsulation types

B.The wrong type of cable is connected to the interface

C.The interface has been configured with the shutdown command

D.The interface is not receiving any keepalives

E.The interface needs to be configured as a DTE device

F.There is no encapsulation type configured

A. provides common view of entire topology

B. exchanges routing tables with neighbors

C. calculates shortest path

D. utilizes event-triggered updates

E. utilizes frequent periodic updates

A.theentirenetworkswitchesto802.1DandgeneratesBPDUstodeterminerootbridfestatus.

B.Amigrationdelayofthreesecondsoccurswhentheportthatisconnectedtothe802.1Dbridgecomesup

C.Theentirenetworkreconvergesandauniquerootbriddgeforthe802.1Dsegment，andarootbridgeforthe802.1Wsegment，ischosen

D.thefirsthop802.1wswitchthatisconnectedtothe802.1Drunsentirelyin802.1DCompatibilitymodeandconvertstheBPDUstoeither802.1Dor802.1Wsegmentsofthenetwork

E.Classic802.1Dtimers，SuchasforwardDelayandMax-age，willonlybeusedasabackup，andwillnotbenecessaryifpoint-to-pointlinksandedgeprotsareproperlyidentifiedandsetbytheadministrator.

A.optimizedtransportstructure

B.highportdensity

C.boundarydefinition

D.dataencryption

E.localVLANs

F.routesummaries

A.It tells the router or switch to try establish an SSH connection first and if that fail to use telnet.

B.It configures a cisco network device to use the SSH protocol on incoming communications via the virtual terminal ports.

C.It allows seven failed login attempts before the VTY lines are temporarily shutdown.

D.It configures the virtual terminal lines with the password 030752180500.

E.It configures SSH globally for all logins.

A.EachswitchportisassignedtoaspecificVLAN.

B.DynamicVLANsrequireaVLANMembershipPolicyServer.

C.DevicesareinthesameVLANregardlessofwhichporttheyattachto.

D.DynamicVLANassignmentsaremadethroughthecommandlineinterface.