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 states 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. 32768： 11-22-33-44-55-66
B. 32768： 22-33-44-55-66-77
C. 32769： 11-22-33-44-55-65
D. 32769： 22-33-44-55-66-78

A.PSK
B.AH
C.MD5
D.ESP

A. 802.1d
B. VTP
C. 802.1q
D. STP
E. SAP

A.telnet access does not require a password
B.nat
C.no broadcast
D.chanage of destination address in the ipv6 header
E.chanage of source address in the ipv6 header
F.autoconfiguration

A.to map a known DLCI to an IP address
B.to map a known IP address to a MAC address
C.to map known SPID to a MAC address
D.to map a known DLCI to a MAC address
E.to map a known IP address to a SPID
F.to map a known MAC address to an IP address

A.它指定VLAN999轉(zhuǎn)發(fā)未做標(biāo)記的流量。
B.它阻止VLAN999轉(zhuǎn)發(fā)主干的流量。
C.它創(chuàng)建了一個(gè)VLAN999接口。
D.它指定VLAN999作為默認(rèn)為所有未知標(biāo)記的流量。

A.show frame-relay map
B.show frame-relay lmi
C.show inter serial
D.show frame-relay pvc

A.（Switch-1會(huì)丟棄該數(shù)據(jù)，因?yàn)樗鼪](méi)有該MAC地址條目）
B.（Switch-1會(huì)泛洪該數(shù)據(jù)到所有的接口，除了該數(shù)據(jù)的源接口）
C.（Switch-1會(huì)發(fā)送ARP請(qǐng)求到所有的接口，除了該數(shù)據(jù)的源接口）
D.（Switch-1會(huì)往默認(rèn)網(wǎng)關(guān)發(fā)送該數(shù)據(jù)）

A.B514：82C3：0029：：EC7A：0000：EC72
B.B514：82C3：0029：EC7A：EC72
C.B514：82C3：：0029：EC7A：0：EC72
D.B514：82C3：：0029：EC7A：EC72