TLVs can be carried in what type of IS-IS PDU?（）

单项选择题By default, which IS-IS metric types does JUNOS software support?（）

A. receiving of wide metrics only
B. sending of narrow metrics only
C. receiving of narrow metrics only
D. sending and receiving of narrow and wide metrics

单项选择题What is the procedure for announcing routes leared from RIP to ISIS neighbors?（）

A. Apply an import policy to RIP which announces the routes to ISIS.
B. Apply an export policy to ISIS which announces the routes to ISIS.
C. Apply an export policy to RIP which announces the routes to ISIS.
D. Apply an import policy to ISIS which imports the routes into ISIS.

单项选择题For maintaining separate unicast and multicast forwarding topologies, where should MBGP multicast routes be placed?（）

A. inet.0
B. inet.1
C. inet.2
D. inet.4

多项选择题Which three NLRIs can MBGP carry? （）

A. LDP routes
B. IPv6 routes
C. RSVP routes
D. Layer 2 VPN routes
E. Layer 3 VPN routes

多项选择题Which three pre-conditions must be met before an OSPF router can perform graceful restart? （）

A. Router must be an ABR.
B. Router must contain one sham link.
C. The network topology must be stable.
D. Router must be able to forward packets.
E. Neighbors must support graceful restart.