Which of the following phrases is TRUE regarding monitoring disk I/O with iostat？（）
A. The iostat can only be run as the root user
B. There could be zero percent I/O wait and still be an I/O bottleneck
C. Any I/O wait time displayed in output of "iostat" is an indication of severe I/O bottlenecks
D. Running "iostat" without any arguments/parameters is sufficient for resolving I/O bottlenecks
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A two-node cluster is attached via SAN to shared disk. The customer has requested that one of the nodes be moved to another room 300 feet away. However， this distance exceeds the length specified by the RS232 specifications. What solution would resolve the RS232 specification issue with the fewest additional components？（）
A. Target mode fiber channel can be used with a SAN solution.
B. The heartbeat could be established by using a disk heartbeat.
C. An RS232 line driver can be used to extend the existing serial connection.
D. The NIM for the serial connection can be altered to compensate for the additional delaycaused by the increased distance.
To examine the Exhibit， press the Exhibit button. Using the "ps -mo THREAD" output as shown in the exhibit， which of the following conclusions is most appropriate to draw？（）
A. This is a uniprocessor system
B. The "prog" process has a nice value of 107
C. There are two active processors on this system
D. The "prog" process will only be scheduled to run on processor 0
Given a new implementation， which of the following procedures should be used to determine a default gateway’s IP address？（）
A. The address will always end in 255.
B. The address will always be the first interface’s IP address
C. The address will always be the network with a 1 as the final octet.
D. It is important to consult with the network administrator prior to making assumptions regarding the default gateway’s IP addres
Which of the following procedures WILL NOT increase contiguous free space on a the filesystem /data1， located on /dev/lv01， that is heavily fragmented？（）
A. Run defragfs -r /data1； defragfs /data1
B. Run defragfs -r /dev/lv01； defragfs /dev/lv01
C. Back up the filesystem by name， unmount the filesystem， recreate the filesystem by running mkfs /dev/lv01， and restoring the data from the backup.
D. Back up the filesystem by inode， unmount the filesystem， recreate the filesystem by running mkfs /dev/lv01， and restoring the data from the backup.
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