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单选题
RFC 3270 describes Differentiated Services （Diff-Serv） over Multi-Protocol Label Switching （MPLS）networks. Which model alters Differentiated Services （Diff-Serv） code points set in different DifferentiatedServices （Diff-Serv） domain？（）
A
Uniform model
B
Pipe Model
C
Short Pipe
D
None of the above will alter Differentiated Services（Diff-Serv）code points set in different DifferentiatedServices（Diff-Serv）domain
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更多 “单选题RFC 3270 describes Differentiated Services （Diff-Serv） over Multi-Protocol Label Switching （MPLS）networks. Which model alters Differentiated Services （Diff-Serv） code points set in different DifferentiatedServices （Diff-Serv） domain？（）A Uniform modelB Pipe ModelC Short PipeD None of the above will alter Differentiated Services（Diff-Serv）code points set in different DifferentiatedServices（Diff-Serv）domain” 相关考题
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Which of the following describes a secure connection over the Internet between two sites?()
A. FTPB. VLANC. VPND. HTTP
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The diffserv approach to providing QoS in networks employs a small, well-defined set of building blocks from which you can build a variety of( ). Its aim is to define the differentiated services (DS) byte, the Type of Service (ToS) byte from the Internet Protocol Version 4 ( )and the Traffic Class byte from IP Version 6, and mark the standardized DS byte of the packet such that it receives a particular forwarding treatment, or per-hop behavior (PHB), at each network node. The diffserv architecture provides a( )within which service providers can offer customers a range of network services, each differentiated based on performance. A customer can choose the ( )level needed on a packet-by-packet basis by simply marking the packets Differentiated Services Code Point (DSCP) field to a specific value.This ( ) specifies the PHB given to the packet within the service provider network.A.servicesB.UsersC.networksD.structuresA.messageB.PacketC.headerD.packageA.informationB.StructureC.meansD.frameworkA.performanceB.SecureC.privacyD.dataA. packetB.valueC.serviceD.paragraph
考题
RFC3270describesDifferentiatedServices（Diff-Serv）overMulti-ProtocolLabelSwitching（MPLS）networks.WhichmodelaltersDifferentiatedServices（Diff-Serv）codepointssetindifferentDifferentiatedServices（Diff-Serv）domain？（）A.UniformmodelB.PipeModelC.ShortPipeD.NoneoftheabovewillalterDifferentiatedServices（Diff-Serv）codepointssetindifferent DifferentiatedServices（Diff-Serv）domain
考题
The diffserv approach to providing QoS in networks employs a small,well-defined set of building blocks from which you can build a variety of( ).Its aim is to define the differentiated services(DS)byte,the Type of Service(ToS)byte from the Internet Protocol Version 4( )and the Traffic Class byte from IP Version 6,and mark the standardized DS byte of the packet such that it receives a particular forwarding treatment,or per- hop behavior(PHB),at each network node.The diffserv architecture provides a( )within which service providers can offer customers a range of network services,each differentiated based on performance.A customer can choose the(________ )level needed on a packet-by-packet basis by simply marking the packet's Differentiated Services Code Point(DSCP)field to a specific value.This ( ) specifies the PHB given to the packet within the service provider network。横线处应选（ ）
A.performance
B. Secure
C. privacy
D.data
考题
Which QoS model manages the QoS requirements for the network on a per-hop behavior （PHB） basis？（）A、best-effort deliveryB、ingress committed rate （ICR）C、shaping and policingD、egress committed rate （ECR）E、Integrated Services （IntServ）F、differentiated services （DiffServ）
考题
Which of these is a valid differentiated services PHB？ （）A、Guaranteed PHBB、Class-Selector PHBC、Reserved Forwarding PHBD、Discard Eligible PHBE、Priority PHB
考题
End-to-end QoS is maintained in the Cisco WLAN deployment model by utilizing what parameter in lieu of 802.1p？（）A、 IP precedenceB、 type of service （ToS）C、 class of service （CoS）D、 differentiated services code point （DSCP）
考题
All of these are fundamental building blocks of differentiated services Traffic Conditioner Block exceptwhich one？（）A、dropperB、classifierC、markerD、querierE、meterF、shaper
考题
As described in rfc 3270，short-pipe mode operstion， the PE to CE egress polices are based upon：（）A、topmost label exp valueB、customer markingC、Innerrnost label exp valueD、Qos groups/discard classE、remarked IP tos valueF、MDRR quantam
考题
Which four services use the inner labels of an MPLS label stack？ （）A、MPLS VPNB、switching path in MPLS coreC、Cisco MPLS Traffic Engineering and Fast RerouteD、MPLS over ATME、VPN over Traffic Engineering coreF、any transport over MPLS
考题
Routers can be used to integrate a variety of services. Which two common services are often specified by businesses？（）A、 Mitigation and ResponseB、 Fibre Channel over EthernetC、 IP communicationsD、 Data Center VirtualizationE、 VPN security
考题
You are configuring services to be discoverable. The services must be discoverable without relying on a central server. Client applications that consume the services are on a network segment that is separate from the network segment that the services are located on.A firewall blocks all TCP ports between the two network segments, but allows other protocols to pass through.You need to ensure that the client applications can discover the services. What should you do?（）A、Use ad-hoc discovery mode over HTTP.B、Use ad-hoc discovery mode over UDP.C、Use managed discovery mode over HTTP.D、Use managed discovery mode over UDP.
考题
单选题Which of these is a valid differentiated services PHB？ （）A
Guaranteed PHBB
Class-Selector PHBC
Reserved Forwarding PHBD
Discard Eligible PHBE
Priority PHB
考题
单选题All of these are fundamental building blocks of differentiated services Traffic Conditioner Block exceptwhich one？（）A
dropperB
classifierC
markerD
querierE
meterF
shaper
考题
单选题Which traffic descriptor s can be recognized and categorized by cisco quality of service（qos）features？（）A
incoming interface.outgoing interface.ip precedence.and differentiated services code P.oint（DSCP）.B
Incoming interace.ip precedence.differentiated services code point（DSCP），and source or d.estination address.C
Outgoing interface.ip precedence.differentiated services code point（DSCP）.and source or d.estination address.D
Incoming interface .outgoing interface.ip precedence and differentiated code point s.ervices（DCPS）E
Incoming interface .ip precedence .and source or destination address. F
Outgoing interface.ip precedence .and source or destination address.
考题
单选题All of these are fundamental building blocks of a differentiated services Traffic Conditioner Block except which one？（）A
dropperB
classifierC
markerD
querierE
meterF
shaper
考题
多选题What are two advantages that the Cisco 3900 Series Integrated Services Routers have over the rest of the integrated services routers？ （）ATelepresence-capableBhigh-density service virtualizationCintelligent integration of securityDwireless servicesEunified communications
考题
多选题Which two options can be used as traffic descriptors when classifying and marking traffic？ （）Aincoming interfaceBLayer 2 differentiated services code point （DSCP）CLayer 3 IP precedenceDoutgoing interface
考题
单选题Which of the following best describes “overcharge of refrigerant”?（）A
Too much refrigerantB
Too little refrigerantC
Refrigerant is ran outD
Running is over
考题
单选题As described in rfc 3270，short-pipe mode operstion， the PE to CE egress polices are based upon：（）A
topmost label exp valueB
customer markingC
Innerrnost label exp valueD
Qos groups/discard classE
remarked IP tos valueF
MDRR quantam
考题
单选题Rewrite rules are used in which CoS scenario?（）A
When a single device is configured to provide differentiated services.B
When multiple devices in a network are configured to use CoS to provide differentiated services.C
When a device is used to connect to another autonomous system.D
When CoS is used to classifiy traffic as low priority.
考题
单选题Which of the following describes a secure connection over the Internet between two sites?（）A
FTPB
VLANC
VPND
HTTP
考题
多选题Routers can be used to integrate a variety of services. Which two common services are often specified by businesses？（）AMitigation and ResponseBFibre Channel over EthernetCIP communicationsDData Center VirtualizationEVPN security
考题
多选题Which four services use the inner labels of an MPLS label stack？ （）AMPLS VPNBswitching path in MPLS coreCCisco MPLS Traffic Engineering and Fast RerouteDMPLS over ATMEVPN over Traffic Engineering coreFany transport over MPLS
考题
单选题End-to-end QoS is maintained in the Cisco WLAN deployment model by utilizing what parameter in lieu of 802.1p？（）A
IP precedenceB
type of service （ToS）C
class of service （CoS）D
differentiated services code point （DSCP）
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