单项选择题

Telneting from any machine on the network is taking 75 seconds. Which of the following procedures should be checked to correct the error?（）

A. Check /etc/hosts.
B. Check /etc/resolv.conf.
C. Check for packet errors.
D. Check to see if the master server is up.

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单项选择题

Which of the following conclusions is most appropriate to draw to describe why du shows fewer blocks used than df?（）

A. The df command only counts the number of disk blocks and superblocks.
B. The df command ignores space used for inodes, gnodes, and vnodes.
C. The du command does not take into account filesystem metadata.
D. The du command counts indirect blocks and superblocks in its calculations.

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The sysdumpdev command can be used to configure remote dump devices. Which of the following conditions is NOT used for a remote dump device configuration?（）

A.The local and the remote host must have Transmission Control Protocol/Internet Protocol (TCP/IP) installed and configured.
B.The remote host must support NFS.
C.The remote host must have an NFS exported directory defined such that the local host has read and write permissions to the dump file on the remote host.
D.The remote host can be the same as the local host.

单项选择题

A machine has just been installed with AIX, and no system parameters have been changed. In order to enable routing function, which of the following "no" options should be changed?（）

A. set bcastping to 1
B. set ipforwarding to 1
C. set rfc1323 to 1
D. set directed_broadcast to 1