A user would like their shell prompt to reflect the current directory. Which of the following environment variables can be set to accomplish this？（）

单项选择题WhichofthefollowingcommandscanbeusedtogetthesystemreadytophysicallyinsertaPCIhotplugadaptor？（）

A.mkdev
B.cfmgr
C.drslot
D.lsslot

单项选择题WhichofthefollowingcommandscanbeusedtoidentifyallPCIhotplugslotsonaserverandtheircharacteristics？（）

A.lsattr -l pci
B.lscfg -Cc pci
C.lsconn -p pci -a
D.lsslot -c pci -a

单项选择题Asystemdumphasoccured.TheLEDdisplayshows0c0.Whatdoesthisindicate？（）

A.The dump was successful.
B.A system dump is in progress.
C.No system dump device configured.
D.There was an I/O error during the dump.

单项选择题Asystemadministratorneedstoconfiguredumpdevicesforthesystem.Whichcommandwouldbeusedtoestimatethesizerequiredforadumpdevice？（）

A.lsdev
B.chdev
C.sysdumpdev
D.sysdumpstart

单项选择题AsystemadministratoriscurrentlyworkingonaproblemwithIBMSupport.Theadministratorfeelsthattheirexpectationsarenotbeingmetonthisproblem.WhatistheIBMrecommendedproceduretoensurethattherequestishandledappropriately？（）

A.Request to change the severity to 1
B.Request to speak to the Duty Manager
C.Request to escalate the problem to development
D.Request IBM to close the incident and reopen the incident with another call.