IBM(000-223)單項(xiàng)選擇題每日一練(2019.01.13)

單項(xiàng)選擇題
An administrator can create logical volumes and then add file systems to them， or create the file system directly. What is an dvantage of the two-step approach instead of the one-step approach（）
A.The number of bytes per inode can be specified.
B.Placement of the filesystem on the disk can be specified.
C.The jfslog can be specified on creation of the filesystem.
D.Either a JFS or JFS2 filesystem can be created on the logical volume.
單項(xiàng)選擇題
A System p administrator is investigating a possible security breech and wants to review information about failed login attempts to the system. Which of the following commands will show this（）
A.fwtmp < /etc/security/failedlogin
B.cat /etc/security/failedlogin
C.who
D.alog -f /etc/security/failedlogin -o
單項(xiàng)選擇題
An administrator has received complaints from users that an application is not available while other applications run. This application resides on an NFS mounted filesystem. Which of the following commands should be run as a reasonable first step to handle this problem（）
A.df
B.showmount
C.exportfs
D.refresh -g nfs
單項(xiàng)選擇題
An administrator must verify all filesets are completely installed before an upgrade. Which of the following commands will perform this task（）
A.Islpp -v
B.Ippchk -v
C.installp -v
D.instfix -v
單項(xiàng)選擇題
Given the following script， why does the output come out as an empty line instead of "dog"（）#!/bin/ksh $VAR=dog echo "${VAR}"
A.The $VAR variable was not exported.
B.The $VAR should have been set as VAR.
C.dog needs double quotes around it when setting $VAR.
D.The { } should not be around VAR in the echo command.

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