What are three valid LDP message types?（）

单项选择题How is the cost of a virtual link in OSPF calculated?（）

A. Takes the metric of the outgoing interface.
B. Uses the metric that is assigned during configuration.
C. Uses the path metric to reach the virtual link neighbor.
D. Uses a default of zero unless otherwise specified.

多项选择题You wish to configure IPv6 support on a router which does not have any current IPv4 configuration.Which three steps are used to configure IPv6 with an accompanying IGP in JUNOS software? （）

A. set protocols isis inet6
B. set routing-options router-id router-id
C. set protocols ospf3 area 0 interface all
D. set interface fe-0/0/1 unit 0 family inet6
E. set routing-options ipv6-router-id router-id

单项选择题By default, to which peers will a BGP router advertise routes learned from IBGP peers?（）

A. all BGP peers
B. all IBGP peers
C. all EBGP peers
D. all MBGP peers

单项选择题Which LSA is the Type 10?（）

A. Router LSA
B. Opaque LSA
C. AS attributes LSA
D. ASBR summary LSA

多项选择题Which three fields are part of an ISO NET address?（）

A. AFI
B. lo0 address
C. N-selector
D. IDI
E. MAC address