IBM(000-223)单项选择题每日一练(2019.01.20)

单项选择题
Under which of the following circumstances must a JFS filesystem be used instead of a JFS2 filesystem（）
A.filesystem will contain 100GB files
B.filesystem resides on a 32-bit system
C.filesystem contains a large number of small files
D.filesystem compression is required
单项选择题
Given the following scripts， what output would be generated（）usr/local/bin/scriptl #!/usr/bin/ksh VARl=red export VARl=green VARl=blue /usr/local/bin/script2 ARl=yellow /usr/local/bin/script2 #!/bin/ksh echo "The sky is ${VAR1}."
A.The sky is red.
B.The sky is blue.
C.The sky is green.
D.The sky is yellow.
单项选择题
Which of the following command can be used to identify all PCI hot plug slots on a server and their characteristics（）
A.lsattr -l pci
B.lscfg -vl pci
C.lsdev -c slot
D.lsslot -c pci -a
单项选择题
An administrator performs an audit on the /usr filesystem and finds the following permissions： -rwsr-xr-x 1 root sys 514288 Jun 18 09：40 /usr/local/bin/nmon Which of the following methods can the administrator use to remove a potential security risk（）
A.rm /usr/local/bin/nmon
B.chmod u-s /usr/local/bin/nmon
C.Reinstall the file from the appropriate fileset
D.chmod go-rx /usr/local/bin/nmon
单项选择题
For security reasons， an administrator is asked to modify the system to prevent someone from leaving a terminal logged in. Which of the following options would enable a five minute timeout for all users（）
A.Add the following line to /etc/environment： TMOUT=300
B.Add the following lines to /.profile TMOUT=5 export TMOUT
C.Run the following command： chuser -u ALL -a TIMEOUT=5M
D.Run the following command： chsec -u ALL -a TIMEOUT=600