Because of performance problems， capacity needs to be added to a paging space named  paging01 on hdisk1. The physical partition size of hdisk1 is 4MB.  Which command will increase the size of paging01 by 100MB（）A、chlv -a paging01 25B、chps -s 25 paging01C、

第1题：

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

第2题：

A server is connected to a gigabit Ethernet switch and has negotiated 1Gbps / Full Duplex. When transferring large files to and from other servers on the segment via FTP slow performance is noticed.All network cabling，network hardware and server hardware were verified to be working correctly.  Which of the following could be done to improve performance？（）

• A、 Decrease the TCP window size.
• B、 Increase the UDP window size.
• C、 Increase the TCP window size.
• D、 Decrease the UDP window size.

第3题：

第4题：

A customer needs to remove an unnecessary, but active paging space called paging00 on an AIX 5L system.  Which of the following procedures should be used to properly remove the paging space with the least amount of disruption?（）

• A、Remove the paging space with the rmps command. 
• B、Disable the paging space with the chps command, swapoff /dev/paging00, and remove the paging00 logical volume with the rmps command. 
• C、Reboot the system and disable the paging space with the rmps command. 
• D、Disable the paging space with the chps command, swapoff /dev/paging00, reboot the system, remove the paging00 logical volume with the rmps command. 

第5题：

Because of performance problems， space needs to be added to a paging space named paging01 on hdisk1. The physical partition size of hdisk1 is 4MB. Which command will increase the size of paging01 by 100MB？（）

• A、swapon -a paging01 25
• B、mkps -a 25 paging01
• C、extendlv -a paging01 25
• D、chps -a 25 paging01

第6题：

A user is complaining that they ran out of paging space.  Which of the following will address this and  provide best performance（）

• A、Expand the default paging space to the largest possible size
• B、Create a new larger paging space
• C、Create additional paging spaces of equal size on different disks
• D、Reboot system

第7题：

Which command will activate a defined paging space?（）

• A、swapon paging01
• B、chps a y paging01
• C、mkps a /dev/paging01
• D、swap a /dev/paging01

第8题：

第9题：

An AIX 5L system has 2 active paging space devices - /dev/hd6 at 64MB in the rootvg and /dev/page01 at 256MB in the datavg. The system administrator has determined that only 192MB of active paging space is actually required and wants to reclaim some of the disk space for use by a new application. Which command should be used to reduce the size of /dev/page01？（）

• A、chps
• B、rmps
• C、chdev
• D、swapoff

第10题：

A specialist is monitoring performance on a server. The data is on another partition within the same array as the OS. The following information is available：       （1）The average record written to disk is 16KB       （2）The I/O block size is 2KB   （3）The stripe size on the RAID array is 16KB  Which of the following will improve performance without rebuilding the operating system？（）

• A、Change the I/O block size to match the RAID Stripe size.
• B、Change the RAID stripe size to match the I/O block size.
• C、Change the record size of the database to match the RAID stripe size.
• D、Change the record size of the database to match the I/O transfer rate.