單項(xiàng)選擇題

In order to ensure best read performance， which of the following indicates how large an application’s read buffer size should be if the filesystem to be read is striped across N disks using LVM striping？（）

A. N times the stripe unit size
B. N times the VMM minfree parameter
C. The same value as that of the VMM maxfree parameter
D. The same value as that of the VMM maxrndwrt parameter

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單項(xiàng)選擇題

A TCP/IP application receives files from a remote machine. The application reads 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size. Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）

A. Increase the size of thewall
B. Increase the size of sb_max
C. Increase the size of tcp_recvspace
D. Increase the size of tcp_sendspace

單項(xiàng)選擇題

Which of the following commands should be used to determine whether a logical volume is contiguous across a disk？（）

A. lslv
B. lsfs
C. lspv
D. fileplace

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In order to ensure best read performance， which of the following indicates how large an application’s read buffer size should be if the filesystem to be read is striped across N disks using LVM striping？（）

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Which of the following commands should be used to determine whether a logical volume is contiguous across a disk？（）

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In order to ensure best read performance， which of the following indicates how large an application’s read buffer size should be if the filesystem to be read is striped across N disks using LVM striping？（）

Which of the following commands should be used to determine whether a logical volume is contiguous across a disk？（）