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Which two of these are characteristics of Metro Ethernet？（）
A . class of service
B . bandwidth profiles
C . user-network interface
D . Ethernet LAN circuit attributes
E . Ethernet virtual circuit attribute
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Which two of these are characteristics of the 802.1Q protocol?（）
A . it is a layer 2 messaging protocol which maintains vlan configurations across network.
B . it includes an 8-bit field which specifies the priority of a frame.
C . it is used exclusively for tagging vlan frames and dose not address network reconvergence following switched network topology changes.
D . it modifies the 802.3 frame header,and thus requires that the FCS be recomputed.
E . it is a trunking protocol capable of carring untagged frames.
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Which two statements are characteristics of pin groups?（）
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
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Which two are characteristics of RSVP？ （）
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.
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Which two of these are characteristics of MPLS VPNs？ （）
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
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Which two statements correctly describe characteristics of the PortFast feature？ （）
A . STP will be disabled on the port.
B . PortFast can also be configured on trunk ports.
C . PortFast is required to enable port-based BPDU guard.
D . PortFast is used for both STP and RSTP host ports.
E . PortFast is used for STP-only host ports.
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Which two are characteristics of the Intercepting Filter pattern？（）
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.
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Which two statements are characteristics of a distance vector routing protocol?（）
A . RIP is an example of distance vector routing protocols.
B . Updates are periodic and include the entire routing table.
C . Routing updates are sent only after topology changes
D . The protocol can be useful in hub-and-spoke and hierarchical networks.
E . Convergence is usually faster than with link state protocols
F . Each router has its own view of the topology
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Which two of these are characteristics of an IDS sensor？（）
A . passively listens to network traffic
B . is an active device in the traffic path
C . has a permissive interface that is used to monitor networks
D . traffic arrives on one IDS interface and exits on another
E . has a promiscuous interface that is used to monitor the network
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Which two are characteristics of the Transfer Object design pattern？（）
A . It reduces network traffic by collapsing multiple remote requests into one.
B . It increases the complexity of the remote interface by removing coarse-grained methods.
C . It increases the complexity of the design due to remote synchronization and version control issues.
D . It increases network performance introducing multiple fine-grained remote requests which return verysmall amounts of data.
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Which two of these are characteristics of Metro Ethernet? （）
A . class of service
B . bandwidth profiles
C . user-network interface
D . Ethernet LAN circuit attributes
E . Ethernet virtual circuit attribute
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Which two are characteristics of RSVP?（）
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.
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Which two are characteristics of the Front Controller pattern？（）
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.
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Which two of the following are valid characteristics of EIGRP?（）
A . Has a maximum hop count of 25
B . Can differentiate between internal and external routes
C . Uses a 32-bit metric
D . Can maintain only one routing table
E . Need all networks to use the same subnet mask
F . Supports only one routed protocol
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Which two characteristics are most typical of a SAN？ （）
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.
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Which two of these are characteristics of an IPS device?（）
A . passively listens to network traffic
B . is an active device in the traffic path
C . has a permissive interface that is used to monitor networks
D . traffic arrives on one IPS interface and exits on another
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Which two are NOT characteristics of the OSPF routing protocol?（）
A . It confines network instability to a single area of network.
B . It increases the routing overhead of the network
C . It supports VLSM
D . It routes between Autonomous Systems.
E . It allows extensive control of routing update
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Which two of these are characteristics of multicast routing？ （）
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
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Which two statements describe characteristics of IPv6 unicast addressing?（）
A . Global addresses start with 2000::/3.
B . Link-local addresses start with FE00:/12.
C . Link-local addresses start with FF00::/10.
D . There is only one loopback address and it is ::1.
E . If a global address is assigned to an interface, then that is the only allowable address for the interface.
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Which two characteristics apply to a CAS T1 interface?（）
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
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Which two of these are characteristics of an IPS device？（）
A . passively listens to network traffic
B . is an active device in the traffic path
C . has a permissive interface that is used to monitor networks
D . traffic arrives on one IPS interface and exits on another
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Which two characteristics are most typical of a SAN? （）
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.
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Which two are characteristics of the Service Locator pattern？（）
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.
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Which two are characteristics of an IPv6 multicast address？（）
A . First （most significant ） octet is FF in hex
B . Starts with a prefix of FE80 to FEBF in hex
C . Starts with a prefix of FECO to FEFF in hex
D . Second octet contains a 4-bit multicast scope field
E . Last 64 bit contains the modified MAC address of the Ethernet interface
F . Is allocated from the unicast address space
