期货合约只有很少一部分进行实物交割，绝大多数合约都会在交割期之前以平仓的方式了结。（)A．正确B．

A. It will only become active after a software failure.

B. It will only become active after a hardware failure.

C. It requires that Cisco NSF be enabled in order to work successfully.

D. It synchronizes the MAC, FIB, and adjacency tables between Active and Standby Route Processors.

A.routedmode

B.contextmode

C.bridgedmode

D.transparentmode

E.fullsecuritymode

A.Ithelpsverifyend-to-endpathavailability.

B.Itprovidestrafficreroutingincaseofdisaster.

C.HSRP，GLBP，andVRRPcanbeclientsofGSS.

D.BGPmustbetheroutingprotocolbetweenthedistributeddatacenters.

E.DNSresponsivenessisimprovedbyprovidingcentralizeddomainmanagement.

A.ItcantakeonHSRP，VRRP，andGLBPasclients.

B.Itprovidesautomaticinboundrouteoptimization.

C.Pathselectionmaybebasedondelay，loss，orjitter.

D.Theborderroutermakesdecisionsaboutwhichoutboundpathtouse.

E.Automaticloaddistributionisprovidedformultipleconnections.

A. Utilizing Cisco NSF in Layer 2 environments can reduce outages to one to three seconds.

B. Utilizing SSO in Layer 3 environments can reduce outages to one to three seconds.

C. Distribution switches are single points of failure causing outages for the end devices.

D. Utilizing Cisco NSF and SSO in a Layer 2 environment can reduce outages to less than one second.

E. NSF and SSO with redundant supervisors have the most impact on outages at the access layer.

A.Itisnotascommonasbridgemode

B.TheMSFCisnotdirectlyconnectedtotheCSM

C.OutboundtrafficfromserversmayneedtobedirectedbyPBRorCSNATtotheCSM

D.TheSLBismovedtoapositionwhereselectedinboundandoutboundservertrafficgoesthroughtheSLB

E.TheCSMstaticallyroutesinboundservertraffictotheaggregationswitchFWSM，thentothe connectedserversubnet

A. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 2 link

B. to a core switch running Cisco NSF and SSO from redundant distribution switches connected with a Layer 3 link

C. to two core switches from redundant distribution switches connected with a Layer 2 link

D. to two core switches from redundant distribution switches connected with a Layer 3 link

E. to two core switches running Cisco NSF and SSO from two redundant distribution switches running Cisco NSF and SSO

A.Layer2mode

B.Layer3Edgemode

C.Layer3Centralmode

D.Layer3In-Bandmode

A.FWSMroutestrafficbetweentheVLANs.

B.FWSMswitchestrafficbetweentheVLANs.

C.Transparentmodeisoftencalledbump-in-the-wiremode.

D.Transparentmodefirewalldeploymentsareusedmostoftenincurrentdesigns.

E.TrafficroutedbetweenVLANsissubjecttostatetrackingandotherfirewallconfigurable options.

A. RX-queue deferred

B. TX-queue deferred

C. RX-queue saturation

D. TX-queue saturation

E. RX-queue starvation

F. TX-queue starvation