juniper认证考试单项选择题每日一练(2019.04.29)

单项选择题
Which statement describes how RSVP guarantees bandwidth reservations?（）
A. It polices each individual session to an explicit rate.
B. It does not police, but never allows link oversubscription.
C. It polices the aggregate rate of all sessions to an explicit rate.
D. It does not police, but limits the amount of reservable bandwidth.
单项选择题
Which of the following attributes allows a VRF to accept VPN routes from another VRF？（）
A. route list
B. route origin
C. route target
D. toute distinguisher
单项选择题
Which statement is true about a forwarding table?（）
A.It stores a subset of information from the routing table.
B.It contains routes learned from all protocols to a destination.
C.It provides a database for routes selected and placed into the routing table.
D.Every routing protocol maintains its own forwarding table.
单项选择题
Which statement is true regarding the Junos OS?（）
A. All platforms running the Junos OS have identical factory-default configurations
B. All platforms running the Junos OS use the IP2 processor for longest-match lookup
C. All platforms running the Junos OS use the same source code base
D. All platforms running the Junos OS use FXP1 for communication between control and forwarding planes
单项选择题
In JUNOS software, what is the only BGP attribute where a higher value is preferred?（）
A. MED
B. origin
C. preference
D. local preference