單項選擇題What does a unicast prefix-based IPv6 multicast address start with?()

A.FF80
B.FF3
C.FF
D.FF7


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1.多項選擇題Which three are needed to run VRF lite for IPv6 on a router? ()

A.VRF definition for IPv6
B.MP BGP for IPv6
C.LDP
D.VRF-enabled routing protocol
E.VRF-enabled interface

2.多項選擇題Which three statements are true about policing? ()

A.Out-of-profile packets are queued.
B.It causes TCP retransmits.
C.Marking and remarking are not supported.
D.It does not respond to BECN and foresight messages.
E.It uses a single- and two-bucket mechanism for metering.

3.多項選擇題An administrator of a peer-to-peer server application reports that the maximum bandwidth that his application receives is 90 Mb/s. You have an 8-port,100-Mb/s EtherChannel bundle on the switching infrastructure between the two servers, resulting in a bidirectional throughput of more than what is recorded. Which two solutions would allow for more bandwidth for the application?()

A.change the EtherChannel default hashing algorithm from XOR to use source port Layer 4 port load balancing to better load balance the traffic
B.change the EtherChannel default hashing algorithm from XOR to use destination Layer 4 port load balancing to better load balance the traffic
C.have the application recoded to use multiple connections instead of a single connection so EtherChannel can better load balance the traffic
D.upgrade the CPU and memory of the compute devices so they can better process traffic
E.upgrade the EtherChannel bundle to a single gigabit link because EtherChannel is not well suited for single-connection traffic

4.多項選擇題Which two attributes need to match for two switches to become members of the same MST region?  ()

A.the table of 4096 elements that map the respective VLAN to STP instance number
B.VTP version
C.configuration revision number
D.native VLAN ID

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In which way can the IPv6 address of 2031:0000:130F:0000:0000:09C0:876A:130B be expressed most efficiently?()

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You are the network administrator of an enterprise company that just deployed a global IP telephony environment. In order to guarantee good voice quality, you asked your provider to implement QoS on the CE routers of your MPLS network. On your LAN, you have also deployed QoS. Users, however, keep complaining about bad voice quality, and the provider does not see matches on the DSCP values that you have asked him to match upon. What is most likely the problem?()

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When a BGP router is not capable of understanding 4-byte AS numbers, it will see 4-byte AS numbers as a special, reserved, 2-byte AS number in the AS path. Which 2-byte AS number is this reserved one?()

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When two bridges are competing for the root bridge of an IEEE 802.1D spanning tree and both have the same bridge priority configured, which parameter determines the winner?()

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Choose two commands that are required to enable multicast on a router, when it is known that the receivers use a specific functionality of IGMPv3.()

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Which three statements are true about policing? ()

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Which QoS mechanism can help classify different kinds of Citrix traffic (print job versus real-time terminal control)?()

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Which statement best describes OSPF external LSAs (type 5)?()

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Two directly connected routers, R1 and R2, are both configured for OSPF graceful restart. R2 is able to switch packets in hardware, but R1 is not. If a network administrator logs on to R2 and performs a system reload, which will be the result?()

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Which statement is true of a source that wants to transmit multicast traffic to group 239.1.1.1?()

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