OCP-1Z0-052-V8.02-34题
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34. A user, who is authenticated externally, logs in to a remote machine and connects to the database
instance. What action would you take to ensure that a user cannot connect to the database instance by
merely logging in to a remote machine?
A.Set REMOTE_OS_ROLES to FALSE.
B.Set the OS_ROLES parameter to FALSE.
C.Set the REMOTE_OS_AUTHENT parameter to FALSE.
D.Set the REMOTE_LOGIN_PASSWORD_FILE parameter to NONE.
OS_AUTHENT_PREFIX
OPS$
Specifies a prefix that Oracle Database uses to identify users attempting to connect to the database. Oracle Database concatenates the value of this parameter to the beginning of the user operating system account name and password. When a user attempts a connection request, Oracle Database compares the prefixed username with user names in the database.
REMOTE_LISTENER
No default setting
Specifies a network name that resolves to an address or address list of Oracle Net remote listeners (that is, listeners that are not running on the same computer as this instance). The address or address list is specified in thetnsnames.ora
file or other address repository as configured for your system.
REMOTE_OS_AUTHENT
FALSE
Specifies whether remote clients will be authenticated with the value of the OS_AUTHENT_PREFIX
parameter.
REMOTE_OS_ROLES
FALSE
Specifies whether operating system roles are allowed for remote clients. The default value,FALSE
, causes Oracle Database to identify and manage roles for remote clients.
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