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IBM(000-234)單項選擇題每日一練(2019.01.19)

單項選擇題
After issuing the nfsstat -rs command， the null received column starts to grow. This indicates which of the following conditions？（）
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
單項選擇題
Which of the following commands should be used to view and change the network filesystem tuning parameters available on the system？（）
A. no
B. nfso
C. vmtune
D. exportfs
單項選擇題
Which of the following commands should be used to determine DNS name resolution performance？（）
A. iptrace
B. vmstat
C. hostname
D. ifconfig
單項選擇題
Which of the following commands displays the number of system calls per second that are being executed？（）
A. sar
B. pstat
C. iostat
D. filemon
單項選擇題
Which of the following commands should be used to identify packet sequence problems？（）
A. ping and arp
B. lsattr and ifconfig
C. netstat and iostat
D. iptrace and tcpdump

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