A. spanning-tree mode rapid-pvst
B. spanning-tree uplinkfast
C. spanning-tree backbonefast
D. spanning-tree mode mst

A.Router(config)#password-encryption
B.Router(config)#service password-encryption
C.Router#service password-encryption
D.Router# password-encryption

A. show interfaces interface
B. show interfaces trunk
C. show interfaces switchport
D. show ip interface brief
E. show interfaces vlan

A.Administratively shut down the interfaces.
B.Physically secure the interfaces.
C.Configure a virtual terminal password and login process.
D.Enter an access list and apply it to the terminal interfaces using the access-class command.
E.Create an access list and apply it to the terminal interfaces using the access-group command

A.CHAP uses a two-way handshake
B.CHAP authentication periodically occurs after link establishment
C.CHAP has no protection from playback attacks
D.CHAP authentication is performed only upon link establishment
E.CHAP uses a three-way handshake
F.CHAP authentication passwords are sent in plaintext

A.ping address
B.tracert address
C.traceroute address
D.arp address

A.阻塞
B.學(xué)習(xí)
C.丟棄
D.轉(zhuǎn)發(fā)
E.偵聽

A.當(dāng)他們收到一個特殊的記號
B.當(dāng)有載波
C.當(dāng)他們沒有檢測到其他設(shè)備發(fā)送
D.當(dāng)介質(zhì)是空閑
E.當(dāng)服務(wù)器授予訪問權(quán)限

A.增加安全性
B.專用帶寬
C.提供分割
D.允許交換機子接口間路由通信
E.包含沖突

A.增加沖突域的大小
B.允許邏輯劃分網(wǎng)段
C.增強網(wǎng)絡(luò)安全
D.當(dāng)減少沖突域時增加廣播域的大小
E.減少廣播域的大小時增加了廣播域個數(shù)
F.簡化交換機管理