單項選擇題

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.


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1.單項選擇題When configuring role-based CLI on a Cisco router，which action will be taken first ？（）

A.Create a parser view called "root view."
B.Log in to the router as the root user.
C.Enable the root view on the router.
D.Enable role-based CLI globally on the router using the privileged EXEC mode Cisco IOS command.

3.多項選擇題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

5.單項選擇題Which method is of gaining access to a system that bypasses normal security measures？（）

A.Starting a Smurf attack
B.Conducting social engineering
C.Creating a back door
D.Launching a DoS attack

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

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

9.單項選擇題Which information is stored in the stateful session flow table while using a stateful firewall？（）

A.the inside private IP address and the translated inside global IP address
B.the source and destination IP addresses， port numbers，TCP sequencing information， and additional flags for each TCP or UDP connection associated with a particular session
C.the outbound and inbound access rules （ACL entries）
D.all TCP and UDP header information only

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