Which file characteristic cannot be used in the Cisco IronPort Data Security policies？（） 

A .  class of service B .  bandwidth profiles C .  user-network interface D .  Ethernet LAN circuit attributes E .  Ethernet virtual circuit attribute

A . Hierarchical OSPF networks need to be in one area B . Multiple OSPF areas must connect to area 0 C . Single area OSPF networks must be configured in area 1 D . Areas can be assigned any number from 0 to 63535 E . Area 0 is called the backbone area F . Each OSPF area need to be configured with a loopback interface

A . they are used internally within fcoe to map a vsan to a specifc vlan B . they pin traffic fro a specific compute node mezzanine card to aspecific up link port C . an iplink port for the adapter is chosen automatically if no pin group is set

A .  RSVP itself provides bandwidth and delay guarantees. B .  For RSVP to be end-to-end， all devices must support RSVP. C .  RSVP reservations are maintained by a centralized reservations server. D .  An RSVP compatible QoS mechanism must be used to implement guarantees according to RSVP reservations.

A . The wires in each pair are wrapped around each other B . An insulating material covers each of the individual copper wires in it C . It comes in eight-pair wire bindles D . EMI and RFI cause only limited degradation to signals running over it E . It comes in seven categories F . IT has an external diameter of approximately 0 28 inche

A .  Layer 3 MPLS VPNs can forward only IP packets B .  Layer 2 MPLS VPNs can forward any network protocol C .  MPL S label paths are automatically formed based on Layer 2 frames D .  Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 frames E .  In Layer 2 MPLS VPNS， the service provider controls the customer Layer 3 policie

A . can be used over analog circuits B . maps Layer 2 to Layer 3 address C . encapsulates several routed protocols D . supports IP only E . provides error correctio

A . A new switch has no VLANs configured. B . Connectivity between VLANs requires a Layer 3 device. C . VLANs typically decrease the number of collision domains. D . Each VLAN uses a separate address space. E . A switch maintains a separate bridging table for each VLAN. F . VLANs cannot span multiple switches.

A .  it provides centralized request handling for incoming requests. B .  It forces resource authentication to be distributed across web components. C .  It reduces coupling between presentation-tier clients and underlying business services. D .  It can be added and removed unobtrusively， without requiring changes to existing  code. E .  It allows preprocessing and postprocessing on the incoming requests and outgoing  responses.

A . Memory requirements are higher for shared distribution tree than for source distributiontree. B . Creates a tree from a central RP to all last-hoprouters. C . Uses a rendezvous point. D . An optimal path is created between each source router and each last-hoprouter. E . Place（S，G）entry in each router’smulticast routing table. F . Place（*，G）entry in a router’smulticast routing to table.

A . They are known as fabric routing. B . They cannot span multiple switches. C . Their connectivity is supported by Layer 2. D . They enable devices in different VSAN fabrics to communicate. E . They require that multiple switch fabrics be merged before they can function.

A .  It decreases complexity by removing a layer of proxy classes. B .  It reduces coupling between tiers by hiding implementation details. C .  It decreases performance due to the lack of caching of remote data. D .  It forces business-tier expectations to be dealt with in the presentation-tier.

A . class of service B . bandwidth profiles C . user-network interface D . Ethernet LAN circuit attributes E . Ethernet virtual circuit attribute

A . RSVP itself provides bandwidth and delay guarantees. B . For RSVP to be end-to-end, all devices must support RSVP. C . RSVP reservations are maintained by a centralized reservations server. D . An RSVP compatible QoS mechanism must be used to implement guarantees according to RSVP reservations.

A . It simplifies remote interfaces to distributed objects. B . It promotes cleaner application partitioning and encourages reuse. C . It provides an initial point of contact for handling all related requests. D . It reduces maintainability due to the increased complexity of the design. E . It provides loosely coupled handlers that can be combined in various permutations.

A .  NICs are used for network connectivity. B .  Servers request specific blocks of data. C .  Storage devices are directly connected to servers. D .  A fabric is used as the hardware for connecting servers to storage devices. E .  The TCO is higher because of the cost of director class storage switches.

A . An IPv6 address is 128 bits long. B . An IPv6 header contains the header checksum field. C . An IPv6 header is 20 bits long. D . An IPv6 header contains the next header field. E . IPv6 route rs send RA messages. F . An IPv6 header contains the protocol field.

A .  multicast routing uses RPF B .  multicast routing is connectionless. C .  In multicast routing， the source of a packet is known. D .  When network topologies change， multicast distribution trees are not rebuilt， but use the originalpath E .  Multicast routing is much like unicast routing， with the only difference being that it has a a groupof receivers rather than just one destinatio

A . signaling travels in-band  B . up to 24 voice channels  C . up to 32 voice channels  D . signaling travels in time slot 17  E . uses Q.931 signaling protocol in a common channel

A . NICs are used for network connectivity. B . Servers request specific blocks of data. C . Storage devices are directly connected to servers. D . A fabric is used as the hardware for connecting servers to storage devices. E . The TCO is higher because of the cost of director class storage switches.

A . Encapsulates several different types of routing protocols. B . Supports only IP. C . Can be used over analog circuits. D . Is proprietary to Cisco E . Supports error correction.

A . It encapsulates component lookup procedures. B . It increases source code duplication and decreases reuse. C . It improves client performance by caching context and factory objects. D . It degrades network performance due to increased access to distributed lookup services.

A、a high clock speed B、a highly optimized pipeline C、a few general-purpose registers D、a limited amount of small instructions