單項(xiàng)選擇題In a brute-force attack, what percentage of the keyspace must an attacker generally search through until heor she finds the key that decrypts the data?()

A.Roughly 50 percent
B.Roughly 66 percent  ActualTests.com
C.Roughly 75 percent
D.Roughly 10 percent


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1.單項(xiàng)選擇題For the following options, which feature is the foundation of Cisco Self-Defending Network technology?()

A.secure network platform
B.secure connectivity
C.threat control and containment
D.policy management

2.多項(xiàng)選擇題Which three are distinctions between asymmetric and symmetric algorithms? ()

A.Only symmetric algorithms have a key exchange technology built in
B.Asymmetric algorithms are used quite often as key exchange protocols for symmetricalgorithms
C.Only asymmetric algorithms have a key exchange technology built in
D.Asymmetric algorithms are based on more complex mathematical computations

3.單項(xiàng)選擇題Which option ensures that data is not modified in transit?()

A.Authorization
B.Confidentiality
C.Authentication
D.Integrity

4.單項(xiàng)選擇題

On the basis of the show policy-map type inspect zone-pair session command output provided in theexhibit.What can be determined about this Cisco IOS zone based firewall policy?()




A.Stateful packet inspection will be applied only to HTTP packets that also match ACL 110
B.This is an inbound policy(applied to traffic sourced from the less secured zone destined to the moresecured zone)
C.This is an outbound policy(applied to traffic sourced from the more secured zone destined to the lesssecured zone)
D.All packets will be dropped since the class-default traffic class is matching all traffic

6.單項(xiàng)選擇題What will be disabled as a result of the no service password-recovery command?()

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

7.單項(xiàng)選擇題Refer to the exhibit. Which statement is correct based on the show login command output shown?()

A.When the router goes into quiet mode, any host is permitted to access the router via Telnet,SSH, and HTTP,since the quiet-mode access list has not been configured.
B.The login block-for command is configured to block login hosts for 93 seconds.
C.All logins from any sources are blocked for another 193 seconds.
D.Three or more login requests have failed within the last 100 seconds.

8.單項(xiàng)選擇題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

9.單項(xiàng)選擇題

Which statement is correct regarding the aaa configurations based on the exhibit provided?()

A.The authentication method list used by the vty port is named test.
B.If the TACACS+ AAA server is not available, no users will be able to establish a Telnet session with the router.
C.If the TACACS+ AAA server is not available, console access to the router can be authenticated using the local database.
D.The authentication method list used by the console port is named test.

10.單項(xiàng)選擇題Which type of MAC address is dynamically learned by a switch port and then added to the switch’s runningconfiguration?()

A.Static secure MAC address
B.Dynamic secure MAC address
C.Pervasive secure MAC address
D.Sticky secure MAC address

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On the basis of the show policy-map type inspect zone-pair session command output provided in theexhibit.What can be determined about this Cisco IOS zone based firewall policy?()

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Regarding constructing a good encryption algorithm, what does creating an avalanche effect indicate?()

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