單項選擇題The system administrator notices that IP packets are not getting forwarded. The system administrator wants to use an AIX machine as an internetwork router over TCP/IP networks. Which of the following commands will allow this change on the fly?()

A. Some network attributes are runtime attributes that can be changed at any time. Others are loadtime attributes that must be set before the netinet kernel extension is loaded and be placed in the /etc/rc.net or /etc/rc.bsdnet file. This parameter cannot be done on the fly, since a reboot is required.
B. Add to the /etc/rc.net file or if a Berkelye-style network configuration, /etc/rc.bsdnet, and issue the command: no -a ipforwarding=1 to start ipforwarding immediately.
C. Add to the /etc/rc.net file or if a Berkeley-style network configuration, /etc/rc.bsdnet, and issue the command: no -o ipforwarding=0 to start ipforwarding immediately.
D. Add to the /etc/rc.net file or if a Berkeley-style network configuration, /etc/rc.bsdnet, and issue the command: no -o ipforwarding=1 to start ipforwarding immediately.


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A. Not enough NFS daemons running
B. Too many NFS daemons running
C. nfs_tcp_socketsize is too small
D. nfs_tcp_socketsize is too large

3.單項選擇題Which of the following is true about rmss?()

A. rmss is a part of performance toolbox and stands for Reduced Memory System Simulator
B. rmss is a part of perfpmr and stands for Real Memory System Simulator
C. rmss is part of the standard bos.perf filesets and stands for Redundant Memory System Simulator
D. rmss is part of  WLM and stands for Real Memory System Simulator

4.單項選擇題A system administrator increases the mbuf pool allocation, then runs vmstat. It is noticed that the paging rate has not decreased. What is the most effective option to maintain the mbuf pool and decrease paging?()

A. Increase the number of CPUs.
B. Increase the physical memory.
C. Set the PSALLOC environment variable to ’late’.
D. Set the PSALLOC environment variable to ’early’.

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