A.The access layer is the initial point at which traffic enters the network. Traffic is marked （orremarked） at Layers 2 and 3 by the access switch as it enters the network， or is "trusted" that it isentering the network with the appropriate tag
B.No traffic marking occurs at the core layer. Layer 2/3 QoS tags are trusted from distributionlayer switches and used to prioritize and queue the traffic as it traverses the core
C.Traffic inbound from the access layer to the distribution layer can be trusted or reset dependingupon the ability of the access layer switches. Priority access into the core is provided based onLayer 3 QoS tags
D.IP precedence， DSCP， QoS group， IP address， and ingress interface are Layer 2 characteristics that are set by the access layer as it passes traffic to the distribution layer. Thedistribution layer， once it has made a switching decision to the core layer， strips these off
E.MAC address， Multiprotocol Label Switching （MPLS）； the ATM cell loss priority （CLP） bit， theFrame Relay discard eligible （DE） bit， and ingress interface are established by the voicesubmodule （distribution layer） as traffic passes to the core layer
F.The distribution layer inspects a frame to see if it has exceeded a predefined rate of trafficwithin a certain time frame， which is typically a fixed number internal to the switch. If a frame isdetermined to be in excess of the predefined rate limit， the CoS value can be marked up in a waythat results in the packet being dropped
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A.QoS classified at layer 3 using IP precedence or DSCP
B.Guaranteed rate service
C.Implemented using FIFO queues
D.All traffic has an equal chance of being dropped
A.Quality of Service （QoS）
B.Intelligent platforms
C.Mobility and scalability
D.Security
E.High availability
A.The use of a queuing method that will give VoIP traffic strict priority over other traffic
B.The use of RTP header compression for the VoIP traffic
C.The proper classification and marking of the traffic as close to the source as possible
D.The use of 802.1QinQ trunking for VoIP traffic
E.The use of WRED
A.IP phones require inline power and must be in separate VLAN to receive inline power
B.IP telephony applications require prioritization over other traffic as they are more delaysensitive
C.IP phones can only receive IP addresses through DHCP if they are in separate VLAN
D.The CDP frames from the IP phone can only be recognized by the switch if the phone is in anauxiliary vlan
According to the information presented in the following exhibit， can you tell me the reason that thetrust state of interface FastEthernet 0/3 displays "not trusted"？（）
A.The command mis qos needs to be turned on in global configuration mode
B.DSCP map needs to be configured for VOIP
C.ToS has not been configured
D.There is not a Cisco Phone attached to the interface
最新試題
Drag the correct statements about MPLS-based VPN on the left to the boxes on the right.（Not allstatements will be used）
Drag and drop question. The upper gives the MPLS functions， the bottom describes the planes.Drag the above items to the proper location at the below
IPSec VPN is a widely-acknowledged solution for enterprise network. Which three IPsec VPNstatements are true？（）
Which statement about PPPoA configuration is correct？（）
Match the xDSL type on the above to the most appropriate implementation on the below.
Drag and drop the xDSL type on the above to the appropriate xDSL description on the below.
Which two encapsulation methods require that an 827 ADSL router be configured with a PPPusername and CHAP password？（）
This item contains several questions that you must answer. You can view these questions byclicking on the Questions button to the left. Changing questions can be accomplished by clickingthe numbers to the left of each question. In order to complete the questions， you will need to referto the SDM and the topology， neither of which is currently visible. To gain access to either thetopology or the SDK click on the button to left side of the screen that corresponds to the sectionyou wish to access. When you have finished viewing the topology the SDK you can return to yourquestions by clicking on the Questions button to the left.Which IPSec rule is used for the Olympia branch and what does it define？（）
Network Topology Exhibit：Configuration Exhibit：NET（config）# access-list 112 deny icmp any any echo logNET（config）# access-list 112 deny imp any any redirect logNET（config）# access-list 112 deny icmp any any mask-request logNET（config）# access-list 112 permit icmp any 10.1.1.0 0.0.0.255NET（config）# interface Fa0/1NET（config-if）# ip access-group 112 inYou work as a network administrator at networkTut.com， study the exhibit carefully. Theconfiguration has been applied to router NET to mitigate the threat of certain types of ICMPbasedattacks while allowing some ICMP traffic to the corporate LAN to work. However， the configurationis incorrect. On the basis of the information in the exhibit， which configuration option wouldcorrectly configure router NET？（）
cisco ios command to interface dialer 0