A.Split horizon is preventing Router2 from receiving routing information from Router1.
B.Router1 is configured for RIP version 2,and Router2 is configured for RIP version 1.
C.Router1 has an ACL that is blocking RIP version 2.
D.There is a physical connectivity problem between Router1 and Router2.
E.Router1 is using authentication and Router2 is not.

A.255.255.255.240
B.255.255.255.254
C.255.255.255.252
D.255.255.255.0
E.255.255.255.248

A.Flash,TFTP server,ROM
B.Flash,NVRAM,ROM
C.ROM,NVRAM,TFTP server
D.NVRAM,TFTP server,ROM
E.TFTP server,Flash,NVRAM

A.Cisco安全管理器
B.Cisco IOS軟件
C.Cisco安全代理
D.MARS

A.A more efficient use of bandwidth can be achieved allowing many physical groups to use the same network infrastructure
B.Broadcast storms can be mitigated by decreasing the number of broadcast domains，thus increasing their size
C.A higher level of network security can be reached by separating sensitive data traffic from other network traffic
D.Port-based vlans increase switch-port use efficient，thanks to 802.1Q trunks
E.A more efficient use of bandwidth can be achieved allowing many logical networks to use the same network infrastructure
F.Broadcast storms can be mitigated by increasing the number of broadcast domains，thus reducing theirsize
G.VLANs make it easier for IT staff to configure new logical groups，because the vlans all belong to thesame broadcast domain

A.威脅控制和遏止
B.安全通信
C.安全策略
D.運(yùn)營控制和策略管理

A.安全性
B.完整性
C.合作性
D.適應(yīng)性

A.穿透模式
B.隧道模式
C.傳輸模式
D.代理模式

A.預(yù)共享密鑰
B.數(shù)字簽名
C.RSA簽名
D.SSL

A.機(jī)密性
B.完整性
C.認(rèn)證
D.安全密鑰交換