多选题
Which three pre-conditions must be met before an OSPF router can perform graceful restart？（）
Router must be ABR
Router must contain one sham link.
The network topology must be stable.
Router must be able to forward packets.
Neighbors must support graceful restart.
多选题
Which two IS-IS hello values must match to form a Level 1 IS-IS adjacency？（）
AFI
Area
System ID
N-Selector
单选题
Which multicast mode does Auto-RP require？（）
Link-mode
Dense mode
Sparse mode
Sparse-dense mode
单选题
An OSPF non-backbone area follows external routes to be flooded within the area. These external routes are propagated into other areas. However， external routes from other areas are not allowed to enter this area. Which type of OSPF area does this describe？（）
stub area
transit area
border area
not-so-stubby area
多选题
Which two are valid IS-IS PDU types？（）
broadcast hellos
Level 1 LAN hellos
Point-to-point hellos
Level 2 point-to-point hellos
单选题
What is the correct configuration of Anycast RP on the loopback interface， assuming a shared anycast address of 10.1.1.1？（）
A
B
C
D
单选题
Into which protocol are LDP hello messages encapsulated？（）
IP
TCP
UDP
MPLS
单选题
Which JUNOS software show command allows you to view BGP attributes for a given route？（）
show route bgp
show bgp attribute
show bgp neighbor
show route extensive
show bgp statistics
多选题
What are three RSVP messages？（）
PathErr：Path error
ResvErr：Reservation error
PathConf：Path confirmation
ResvConf：Reservation confirmation
