A. PathErr : Path errorB. ResvErr : Reservation errorC.……

单项选择题Which multicast mode does Auto-RP require?（）

A. Link-mode
B. Dense mode
C. Sparse mode
D. Sparse-dense mode

多项选择题Which three mechanisims support the forwarding plane of a Layer 3 VPN in JUNOS software? （）

A. MPLS LSP
B. ATM tunnel
C. GRE tunnel
D. IPSEC tunnel
E. L2TPv3 session

单项选择题What is the primary purpose of VPLS?（）

A. to create a partial mesh of VPN sites
B. to remove MPLS from VPNs
C. to create a point to multipoint topology
D. to enable IPsec accross the VPN

多项选择题What are three examples of a CPE-provisioned VPN? （）

A.L2TP
B.2547bis
C.L2F
D.PPTP
E.MPLS

单项选择题Click the Exhibit button. Referring to the exhibit, which statement is true about the IP packet flow through interface ge-3 0 0.0?（）

A. All packets set to be forwarded out interface ge-3/0/0 will be dropped by the firewall filter fire1.
B. All packets set to be forwarded out interface ge-3/0/0 will NOT dropped by the firewall filter fire1.
C. All packets entering the router on interface ge-3/0/0.0 will be dropped by the firewall filter fire1.
D. All packets set to be forwarded out interface ge-3/0/0, except those sourced locally by the Routing Engine, will be dropped by the firewall filter fire1.