單項選擇題The above bgp configuration has what effect on the configured router？（）

A.Allows incoming TCP connections destined to port 179
B.Allows incoming TCP connections sourced from port 179
C.Allows incoming TCP connections from 1.1.1.1 and destined to，or sourced from port 179
D.Allows incoming TCP connections from 1.1.1.1 that are destined to port 179
E.Allows incoming TCP connections from 1.1.1.1 that are sourced from port 179


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1.多項選擇題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

2.多項選擇題n the case of Ethernet transport， which two types of attachment circuits does L2TPv3 support？ （）

A.port tunneling on the Ethernet subinterface
B.VLAN tunneling on the Ethernet trunk
C.port tunneling on the Ethernet interface
D.VLAN tunneling on the Ethernet VLAN subinterface
E.port tunneling on the Ethernet trunk

3.多項選擇題Packed Cell Relay encapsulation with AToM inclues which of the following？（）

A.Tunnel label
B.VC-label
C.5-byte ATM header
D.Payload
E.4 byte ATM header
F.Support for 30 packed cells

4.多項選擇題Which are correct descriptions and configurations of Anycast RP？（）

A.In Anycast RP， two or more RPs are configured with the same IP address on loopback interfaces.
B.Anycast RP provides redundancy and load-sharing capabilities.
C.Routers with Anycast RP can be configured statically （loopback 1.1.1.1）with the command ip pim rp-address 1.1.1.1
D.Routers with Anycast RP can be configured statically （loopback 1.1.1.1）with the command ip rp-address pim 1.1.1.1
E.Routers with Anycast RP can be configured statically （loopback 1.1.1.1）with the command ip anycast-rp pim 1.1.1.1

5.單項選擇題Which of the following IOS features can prevent IP spoofing attacks？（）

A.PPP over Ethernet
B.Cisco Express forwarding
C.MPLS traffic Engineering
D.IS-IS routing
E.Unicast Reverse Path Forwarding（uRPF）