单项选择题
A standard access control list has been configured on a router and applied to interface Serial 0 in anoutbound direction. No ACL is applied to Interface Serial 1 on the same router. What will happen whentraffic being filtered by the access list does not match the configured ACL statements for Serial 0?()
A.The traffic is dropped
B.The resulting action is determined by the destination IP address
C.The source IP address is checked,and,if a match is not found, traffic is routed out interface Serial 1
D.The resulting action is determined by the destination IP address and port number
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单项选择题
Regardingconstructingagoodencryptionalgorithm,whatdoescreatinganavalancheeffectindicate?()
A.Altering the key length causes the ciphertext to be completely different
B.Changing only a few bits of a ciphertext message causes the plain text to be completely different
C.Altering the key length causes the plain text to be completely different
D.Changing only a few bits of a plain-text message causes the ciphertext to be completely different -
单项选择题
WhichitemiscorrectregardingCiscoIOSIPSonCiscoIOSRelease12.4(11)Tandlater?()
A.requires the Basic or Advanced Signature Definition File
B.uses the built-in signatures that come with the Cisco IOS image as backup
C.supports SDEE,SYSLOG,and SNMP for sending Cisco IPS alerts
D.uses Cisco IPS 5.x signature format -
单项选择题
AfterenablingportsecurityonaCiscoCatalystswitch,whatisthedefaultactionwhentheconfiguredmaximumofallowedMACaddressesvalueisexceeded?()
A.The port’s violation mode is set to restrict
B.The port is shut down
C.The MAC address table is cleared and the new MAC address is entered into the table
D.The port remains enabled, but bandwidth is throttled until old MAC addresses are aged out
