Which command encrypts all plaintext passwords?()A.Router(config)#password-encryptionB.Router(config)#service password-encryptionC.Router#service password-encryptionD.Router# password-encryption

CHAP uses a two-way handshake

CHAP authentication periodically occurs after link establishment

CHAP has no protection from playback attacks

CHAP authentication is performed only upon link establishment

CHAP uses a three-way handshake

CHAP authentication passwords are sent in plaintext

Import the user accounts as inetOrgPerson objects.

Import the user accounts into Active Directory by using the Ldifde command-line tool.

Export all user accounts from the UNIX servers to a text file.

Export all user accounts and their passwords from the UNIX servers to a text file. Encrypt this file to achieve extra security.

Assign random passwords to each user object, and securely distribute the password to the users.

Create the same strong password for each user object, and require users to change their passwords at first logon.

enbale password c1sco

secret enable c1sco

password enable c1sco

enable secret c1sco

only passwords configured after the command has been entered will be encrypted

Only the enable password will be encrypted

Only the enable secret password will be encrypted

It will encrypt the secret password and remove the enable secret password from the configuration

It will encrypt all current and future passwords.

nly passwords configured after the command has been entered will be encrypted.

Only the enable password will be encrypted.

Only the enable secret password will be encrypted

It will encrypt the secret password and remove the enable secret password from the configuration.

It will encrypt all current and future passwords.

It records the usernames and passwords of users when granted the DBA role.

It contains the usernames and passwords of users for whom auditing is enabled.

Is used by Oracle to authenticate users for remote database administration.

It records the usernames and passwords of all users when they are added to the OSDBA or OSOPER operating system groups.

It supports the SYSBACKUP, SYSDG, and SYSKM system privileges.

It encrypts data after a tickt is granted，but passwords are exchanged in plaintext.它在ticket获得授权后对数据进行加密，但是密码的交换是明文方式。

It depends upon symmetric ciphers.它依赖于对称加密。

It is a second party authentication system.它是一种第二方的认证系统

It utilizes public key cryptography.它使用公钥密码学。

It records usernames and passwords of users when granted the DBA role.

It contains usernames and passwords of users for whom auditing is enabled.

It is used by Oracle to authenticate users for remote database administration.

It records usernames and passwords of all users when they are added to OSDBA or OSOPER operating system groups.

by encrypting all passwords passing through the router

by encrypting passwords in the plain text configuration file

by requiring entry of encrypted passwords for access to the device

by configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges

by automatically suggesting encrypted passwords for use in configuring the router

Router(config)#password-encryption

Router(config)#service password-encryption

Router#service password-encryption

Router# password-encryption