A.It sends ping requests in segments of an invalid size
B.It intercepts the third step in a TCP three-way handshake to hijack a session
C.It sends ping requests to a subnet， requesting that devices on that subnet send ping replies to a targetsystem
D.It uses Trojan horse applications to create a distributed collection of "zombie" computers， which can beused to launch a coordinated DDoS attack
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A.password encryption service
B.changes to the config-register setting
C.the xmodem privilege EXEC mode command to recover the Cisco IOS image
D.ROMMON
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
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
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
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
最新試題
Which two actions can be configured to allow traffic to traverse an interface when zone-based security isbeing employed？（）
Which one of the Cisco IOS commands can be used to verify that either the Cisco IOS image， theconfiguration files，or both have been properly backed up and secured？（）
Which one of the aaa accounting commands can be used to enable logging of both the start and stoprecords for user terminal sessions on the router？（）
Which method is of gaining access to a system that bypasses normal security measures？（）
In an IEEE 802.1x deployment，between which two devices EAPOL messages typically are sent？（）
How do you define the authentication method that will be used with AAA？（）
What is the objective of Diffie-Hellman？（）
Which type of MAC address is dynamically learned by a switch port and then added to the switch’s runningconfiguration？（）
Which VoIP components can permit or deny a call attempt on the basis of a network’s available bandwidth？（）
For the following items， which one acts as a VPN termination device and is located at a primary networklocation？（）