A.FXS
B.FSO
C.E&M
D.auxiliary port
E.802.3af ethernetports

A.FIFO queuing， which provides a means to hold packets while they are waiting to exit an interface
B.Priority queuing， which ensures a fixed amount of bandwidth
C.Custom queuing （CO）， which provides a queuing tool that services all queues， even during times of congestion
D.Bandwidth queuing， which ensures a minimum amount of bandwidth
E.Weighted fair queuing （WFO）， which classifies packets based on flows

A.World Wide Web traffic using load balanced web servers
B.voice
C.peer to peer applications mission critical applications
D.peer to peer applications
E.multicast routing protocols

A.An autonomous wireless solution includes lightweight APs and WLAN controllers. The APs and the WLAN controllers are managed by a WLAN solution engine （WLSE/WLSM）.
B.An autonomous wireless solution includes lightweight APs and WLAN controllers. The APs and the WLAN controllers are managed by the Cisco Wireless Control System （WCS）.
C.A lightweight wireless solution includes lightweight APs and WLAN controllers. The APs and the WLAN controllers are managed by a WLAN solution engine （WLSE/WLSM）.
D.A lightweight wireless solution consists of autonomous access points （APs）， which are managed by a WLAN solution engine （WLSE/WLSM）.
E.A lightweight wireless solution includes lightweight APs and WLAN controllers. The APs and the WLAN controllers are managed by the Cisco Wireless Control System （WCS）.

A.core distribution access
B.multisite with centralized call processing
C.multisite with distributed call processing
D.clustering over WAN
E.PSTN-WAN
F.Enterprise Composite Model

A. AutoOoS can be implemented on only one side of a link.
B.The interface does not have to have an IP address associated with it.
C.The AutoOoS feature cannot be configured on a Frame Relay DLCI if a map class is attached to the DLCI.
D.In a Frame Relay network， AutoOoS cannot be configured if a DLCI is already assigned to the Frame Relay subinterface

A.EAP-FASTEAP-FAS Access Point Protocol （LWAPP） packet is used to generate an 802.1 p priority value in the packets， which are sent to an Ethernet switch by the controllers.
B.The AP will police the 802.1 le priority value to ensure it does not exceed the maximum value allowed for the QoS policy that is assigned to that client.
C.Once the LWAPP packet is received， the AP generates the IEEE 802.1 p priority value.
D.The AP will map the 802.11e priority value to the DSCP value.
E.The AP will map the DSCP value to the outer LWAPP frame.

A.LEAP
B.EAP-FAST
C.PEAP
D.EAP-TLS

A.IP precedence bits
B.DSCP bits
C.original port numbers
D.DE bits
E.source IP address
F.destination IP address

A.a class can be inentified as a single application .multiple applications with similar service nees.or be based on the source or destination ip addresses.
B.a drawback of the diffserv model is that it does not provide backward compatibility with devices that can only use the tos field.
C.diffserv uses the diffserv field in the MAC header to mark frames into behavior aggregates（BAs）
D.the diffserv field occupies the same eight bits of the mac header that were previously used for the tos field.
E.the first six high-order bits of the diffserv field are used to identify the resource reservation protocol（RSVP） value .
F.the primary goal of diffserv is scalabilty.