多项选择题

What are two rules for compacting IPv6 addresses？（）

A.The maximum number of times a double colon can replace a 16-bit segment that consists of all zeroes is two
B.The leading zeroes in any 16-bit segment do not have to be written.
C.Every 16-bit segment that consists of all zeroes can be represented with a single colon
D.The trailing zeroes in any 16-bit segment do not have to be written.
E.Any single， continuous string of one or more 16-bit segments that consists of all zeroes can be represented with a double colon
F.Two zeroes in the middle of any 16-bit segment do not have to be written

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多项选择题

Refer to the exhibit. Which two statements are correct？（）

A.All six routes will be installed in the routing table
B.Two routes will be installed in the routing table
C.Four routes will be installed in the routing table
D.All the routes were redistributed into BGP from an IGP
E.All the routes were originated by BGP with the network command

多项选择题

What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network in the show ip bgp command output？（）

A.The network was originated via redistribution of an interior gateway protocol into BGP
B.The network was defined by a static route
C.The network was originated via a network or aggregate command
D.The network was learned via EBGP
E.The network was learned via IBGP

单项选择题

Refer to the exhibit. EIGRP has been configured on all routers in the network. What additional configuration statement should be included on router R4 to advertise a default route to its neighbors？（）

A.R4（config）# ip default-network 10.0.0.0
B.R4（config）# ip route 0.0.0.0 0.0.0.0 10.1.1.1
C.R4（config）# ip route 10.0.0.0 255.0.0.0 10.1.1.1
D.R4（config-router）# default-information originate