单选题Which statement is TRUE about the CacheFactory class ？（）Ait is a topology agnostic way to access NamedCachesBit provides mechanisms to manage underlying remote data sourcesCboth A and B are TRUED Neither A nor B are TRUE

 it is a topology agnostic way to access NamedCaches

 it provides mechanisms to manage underlying remote data sources

 both A and B are TRUE

Neither A nor B are TRUE

Foam conducts electricity

To be most effective，foam should be directed at the base of the fire

Foam is most effective on burning liquids which are flowing

Foam can ONLY be used to extinguish class A fires

 LWAPP encrypts both control traffic and user data.

 LWAPP encrypts user traffic with an x.509 certificate using AES-CCMP.

 When set to Layer 3， LWAPP uses a proprietary protocol to communicate with the Cisco  Aironet APs.

 LWAPP encrypts control traffic between the AP and the controller.

 None of the other alternatives apply.

 An anonymous class can be declared as static.

 A static inner class cannot be a static member of the outer class.

 A static inner class does not require an instance of the enclosing class.

 Instance members of a static inner class can be referenced using the class name of the static inner class.

 The data traffic between the access point and controller is not encrypted.

 The data traffic is encapsulated with LWAPP.

 The data traffic is switched at the access point before being sent to the WLAN controller where  VLAN tagging and QoS are applied.

 The data traffic is encrypted with AES.

 All of the above

 Cannot be disabled

 Cannot have the CoS changed

 Can have Packet Drop enabled

 Is multicast optimized

 Can have the MTU changed

 Compilation of both classes will fail.

 Compilation of both classes will succeed.

 Compilation of class a will fail. Compilation of class b will succeed.

 Compilation of class a will fail. Compilation of class a will succeed.

 Physically the voice network and the data network are separate.

 The voice traffic will normally be on a different IP subnet than will the data traffic.

 End user intervention is necessary to place the phone into the proper VLAN.

 The same security policy should be implemented for both voice and data traffic.

 The data VLAN must be configured as the native VLAN.

 Real-time frame exchange is accomplished within the access point.

 The control traffic between the client and the access point is encapsulated with the LWAPP. 

 Authentication， security， and mobility are handled by the access point.

 Data traffic between the client and the access point is encapsulated with LWAPP.

 None of the other alternatives apply

 LWAPP encrypts control traffic between the AP and the controller.

 LWAPP encrypts user traffic with a x.509 certificate using AES-CCMP

 LWAPP encrypts both control traffic and user data.

 When set to Layer 3， LWAPP uses a proprietary protocol to communicate with the Cisco Aironet APs.

 both active and passive modes FTP are supported

 by default the FTP proxy uses port 8021

 access polices may apply to native FTP traffic

 data loss prevention policies may apply to native FTP traffic

 authentication is supported in transparent mode

It supports eight different data rates.

It is fully backward compatible with 802.11b

It provides the same network throughput with 802.11b clients， 802.11g clients， or a mixed  environment where both clients are present.

It is only compatibly with the 11 Mbps 802.11b transfer rate.

It has three non-overlapping channels in its channel options.

Physically the voice network and the data network are separate

The voice traffic will normally be on a different IP subnet than will the data traffic

End user intervention is necessary to place the phone into the proper VLAN

The same security policy should be implemented for both voice and data traffic

The data VLAN must be configured as the native VLAN

 it should have localstorage set to TRUE

 it should be configured so as to not trigger re-partitioning 

 both A and B are TRUE

 Neither A and B are TRUE