A. common network infrastructureB. abstracted integrati……

多项选择题Whichthreeofthesearemajorscaling，sizing，andperformanceconsiderationsforanIP secdesign？（）

A. connection speed
B. number of remote sites
C. features to be supported
D. types of devices at the remote site
E. whether packets are encrypted using 3DES or AES
F. number of routes in the routing table at the remote site

单项选择题Scalabilityisprovidedintheserverfarmmodulebywhichofthefollowingdesignstrategies？（）

A. up to 10 Gbps of bandwidth at the access level
B. redundant servers at the access level
C. modular block design at the access level
D. high port densities at the access level

单项选择题WhichroamingoptionwillkeepthemonthesameIPsubnetwhenclienttrafficisbeingbridged throughLANinterfacesontwoWLCs？（）

A. Layer 1 intercontroller roaming
B. Layer 2 intercontroller roaming
C. Layer 3 intercontroller roaming
D. Layer 4 intercontroller roaming

单项选择题Sun Stable is a global insurance company with headquarters located in Houston， Texas. Thecampus there is made up of a number of office buildings located within the same vicinity. In 2003，a new building. Building 331B was added. The additional building houses approximately 1000 employees. Ratherthan deploy a private branch exchange （PBX） in the new building， Sun Stable has decided toimplement an IP telephony solution. External calls will be carried across a MAN link to anotherbuilding， where a gateway connects into the worldwide PBX network of Sun Stable. Voice mail andunified messaging components are required and all IP phones and workstations should be on separate VLANs and IP subnets. ActualTests.comWhich IP telephony deployment best suits their need？（）

A. single-site
B. multisite with centralized call processing
C. multisite with distributed call processing
D. clustering over the WAN

单项选择题WhichIOSQoSenhancementwascreatedtoaddressscalabilityandbandwidthguaranteeissues？（）

A. DiffServ
B. IntServ
C. RSVP
D. WFQ