多项选择题

Which two QoS classification and marking statements are true？（）

A. In a Frame Relay network， delay sensitive traffic is tagged with the discard eligible （DE） bit.
B. In an MPLS network， the three most significant bits of the DSCP or the IP precedence of the IP packet are copied into the MPLS EXP field
C. In an MPLS network， the MPLS EXP bits are used to identify up to 16 CoS values.
D. The differentiated services code point （DSCP） field consists of the first three bits of the IP precedence field in the header of an IP packet.
E. The 802.10 standard uses a three bitfield referred to as the user priority bits （PRI） to mark packets as belonging to a specific CoS.

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热门试题

多项选择题Refer to the exhibit. Which two statements accurately describe the pictured WPA wireless LAN controller configuration?（）

A.WPA1 is disabled and WPA2 is enabled.
B.WPA1 is enabled and WPA2 is disabled.
C.WPA1 is enabled and WPA2 is enabled.
D.TKIP is the default parameter for WPA1 andWPA2.
E.AES is the default parameter for WPA1 and WPA2.
F.The default WPA1 and WPA2 parameters are enabled

单项选择题Whichstatementbestdescribestheapplicationoflinkfragmentationandinterleaving（LFI）？（）

A.It compresses the Layer 2 payload and marks the packet as a high priority to be transmitted first
B.It fragments larger packets and allows VoIP packets to be transmitted in between them.
C.It stops the transmission of large packets when priority packets arrive.
D.It sends high priority packets in between normal traffic packets.

多项选择题WhataretwowaystominimizethedelayofVoIPpacketsthataretraversinganetwork？（）

A.Use WFQ， CBWFO， and LLO to prioritize delay-sensitive packets
B.Use WFO， CBWFO， and LLO to compress the payload.
C.Give TCP packets priority over UDP packets.
D.Use control plane policing for cRTP queuing.
E.Use stacker and predictor to compress the payload.

单项选择题Refer to the exhibit. On the basis of the configuration that is provided, which statement is true?（）

A.The Auto OoS policies will be attached to the interface.
B.Data about the network traffic will be collected via the use of NBAR-based protocol discovery， and the traffic on the network will be analyzed.
C.The class maps and policy maps will be created and installed on the basis of the information that is collected during the autodiscovery phase
D.Templates will be created that will be used to create policy maps and class maps to configure the OoS features on the network.

单项选择题Assumethatnetwork-basedapplicationrecognition（NBAR）hasbeenconfiguredtogathertrafficforallknownprotocolsonaninterface.Whichcommandwilldisplaythestatisticalresultsofallrecognizedprotocols？（）

A.showip nbar
B.showip nbar pdim
C.show ip nbar port-map
D.show ip nbar protocol-discovery