A. network unificationB. remote accessC. mobility servi……

多项选择题Whattwochoicescanyoumakewhenredundancyisrequiredfromabranchofficetoaregional office？（）

A. multiple Frame Relay PVCs
B. dual Wan links to the regional office
C. dual Wan links to another branch office
D. single links - one to the regional office and one to another branch office

单项选择题YouaretheCiscoNetworkDesignerinCisco.com.WhichoftheseisaLayer2transport architecturethatprovidespacket-basedtransmissionoptimizedfordatabasedonadualringtopology？（）

A. Dynamic Trunking Protocol
B. Resilient Packet Ring
C. Synchronous Digital Hierarchy
D. Coarse Wave Division Multiplexing

单项选择题Whichtypicalenterprisecampusrequirementensuresthatthenetworksupportstherequired applicationsandthatdataflowswithintherequiredtimeframes？（）

A. availability
B. performance
C. functionality
D. manageability

单项选择题CiscoExpressForwarding（CEF）ismainlyusedtoincreasepacketswitchingspeed，reducingtheoverheadanddelaysintroducedbyotherroutingtechniques，increasingoverallperformance.WhichofthefollowingconcerningCEFisrecommendedbyCisco？（）

A. Use default Layer 4 hash in core.
B. Use default Layer 3 hash in distribution.
C. Use default Layer 4 hash in distribution.
D. Use default Layer 3 hash in core and Layer 3 + Layer 4 hash in distribution layer.

多项选择题Whichthreestatementsaboutfirewallmodesarecorrect？（）

A. A firewall in routed mode has one IP address
B. A firewall in transparent mode has one IP address
C. In routed mode， the firewall is considered to be a Layer 2 dew
D. In routed mode， the firewall is considered to be a Layer 3 device
E. In transparent mode， the firewall is considered to be a Layer 2 device
F. In transparent mode， the firewall is considered to be a Layer 3 device