Your manager has informed you that only specific users can have access to the Preferred Members role, and that these users are restricted to the Preferred Members role. The Preferred Members role-mapping rule is currently set as the last rule in your role-mapping rules and is based on username. Currently all users are assigned to the Preferred Members role-mapping rule. Which three changes in the admin GUI will enforce your managers change request?（）
AMove the Preferred Members role-mapping rule to the top of the list.
BRemove the Preferred Members role from the role-mapping rule.
CEdit the Preferred Members role-mapping rule so that the username is equal to *.
DEdit the Preferred Members role-mapping rule so that only the select users are assigned to the role-mapping rule.
EEdit the Preferred Members role-mapping rule and select Stop processing rules when this rule matches.
Which command will enable the administrator to query the current network adapter configuration？（）
A、netstat -v
B、entstat -d
C、lsattr -El
D、lsdev -C -attr
A client is having trouble connecting to the Internet. The client is using a static IP address and is able to connect to other devices on the network via IP address only. Which of the following is MOST likely the problem?（）
A、IMAP
B、DHCP
C、DNS
D、NAT
列车无线列调系统中，允许哪些人员通话？
Where is the run date for an ‘at’ job located？（）
A、Within the job environment set up
B、Within the user data of the at job
C、In the file name preceeded with a userid
D、In a special file used by the cron daemon
交流供电系统由哪些部分组成？