单选题A router has been configured with the authentication order settings shown below: [edit] user@host# show system authentication-order authentication-order [radius tacplus password]; The router also has a local database that contains the user lab with pas

A router has been configured with the authentication order settings shown below:[edit]user@host show system authentication-order authentication-order [radius tacplus password];The router also has a local database that contains the user lab with password lab123. What would happen if both the RADIUS and the TACACS servers respond with a reject for user lab?（）

A.The user lab will not be able to login.

B.The user lab will be authenticated against the local database and will be able to login.

C.The user will be able to login only if tries to login as the root user.

D.The user lab will receive an error message indicating the username and password provided could not be found on the radius and tacacs servers.

A.User ID/password file

B.Communications layer

C.Client applications

D.Operating system

In your database, the LDAP_DIRECTORY_SYSAUTH initialization parameter has been set to YES and the users who need to access the database as DBAs have been granted SYSDBA enterprise role in Oracle Internet Directory (OID). SSL and the password file have been configured. A user SCOTT with the SYSDBA privilege tries to connect to the database instance from a remote machine using the command:Which authentication method would be used first?（）

A. authentication by password file

B. authentication by using certificates over SSL

C. authentication by using the Oracle Internet Directory

D. authentication by using the local OS of the database server

A Cisco router has been configured, and the copy running-config startup-config command has been issued. When the router is power cycled, the router prompts with:"Would you like to enter the initial configuration dialog? [yes/no]"Why has this occurred?（）

A. There is an error in the router DRAM.

B. Te IOS image is corrupt.

C. The configuration register is set to 0x2142.

D. The TFTP server that contains the router configuration file is unreachable.

E. A boot system configuration command has placed the router into setup mode.

A router has been configured with the settings shown below:[edit]user@host show system authentication-order authentication-order [ radius tacplus ];The router also has a local database that contains the user lab with password lab123. What would happen if both the RADIUS and the TACACS servers are not accessible?（）

A.The user lab will not be able to login.

B.The user lab will be authenticated against the local database and will be able to login.

C.The user lab will receive an error message indicating the router is unable to authenticate due to the authentication servers not responding.

D.The user will be able to login only if tries to login as the root user.

Router R1 exists in an Enterprise that uses EIGRP as its routing protocol. The show ip route command output on router R1 lists the following phrase: "Gateway of last resort is 1.1.1.1 to network 2.0.0.0".Whic h of the following is most likely to have caused this output to occur on R1?（）

A. R1 has been configured with an ip default- network 2.0.0.0 command.

B. R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command.

C. R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

D. Another router has been configured with an ip default - network 2.0.0.0 command.

E. Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

A company is using RADIUS to authenticate login requests to its Juniper Networks routers. Usersshould still be able to authenticate using the local password database but only if the RADIUS server is unreachable. Which JUNOS software configuration accomplishes this goal?（）

A. authentication-order radius;

B. authentication-order password;

C. authentication-order [radius password];

D. authentication-order [password radius];