A.RSTP significantly reduces topology reconverging time after a link failure.
B.RSTP expends the STP port roles by adding the alternate and backup roles.
C.RSTP port atates are blocking,discarding,learing,or forwarding.
D.RSTP also uses the STP proprsal-agreement sequence.
E.RSTP use the same timer-baseed process as STP on point-to-point links.
F.RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.

A.IronPort
B.Cisco NAC
C.SAN
D.CSA

A.NAT protects network security because private networks are not advertised.
B.NAT accelerates the routing process because no modifications are made on the packets.
C.Dynamic NAT facilitates connections from the outside of the network.
D.NAT facilitates end-to-end communication when IPsec is enable.
E.NAT eliminates the need to re-address all host that require extemal access.
F.NAT conserves addresses through host MAC-level multiplexing.

A.Core-Router is connected more than one multi-access network
B.The router at 208.149.23.130 is a secondary DR in case the primary fails.
C.Two router IDs have the same OSPF priority and are therefore tied for DR election
D.The DR ecection is still underway and there are two contenders for the role

A.最小特權(quán)觀念
B.進程之間的隔離
C.標準檢測器
D.小的、可驗證的代碼塊

A.Cisco網(wǎng)絡(luò)準入控制
B.終端保護
C.網(wǎng)絡(luò)感染遏制
D.CSA

A.The address is a broadcast address
B.The Ehernet interface is faulty
C.VLSM-capable routing protocols must be enable first on the router.
D.This address is a network address.

A.啟用端口安全
B.跟橋保護
C.廣播風暴控制
D.Cisco安全端口分析器

A.RIPng
B.OSPFv3
C.static
D.IS-IS for IPv6

A.to confine network instability to single areas of the network.
B.to reduce the complexity of router configuration.
C.to speed up convergence.
D.to lower costs by replacing routers with distribution layer switches.
E.to decrease latency by increasing bandwidth.
F.to reduce routing overhead.