Which of the following commands is used to clear all entries from the system error log? （） errpt -c 。 errclear -j 0 。 errclear 0 。 startsrc -s syslogd。
An administrator mistakenly shutdown production after a fallover because the service IP address Was shifted from the normal production node to the standby node. What can be done to avoid this type of mistake in the future？（） Include the service IP address in the administrator’s PS1 prompt。 Alias the service IP address to the hostname in the /etc/host file。 Define a persistent IP address with HACMP and make it a practice to use the persistent address for administration work。 Add a DNS entry to map the standby node name to the service IP address so telnet connections will be to the correct node。
Using splitvg to create a snapshot volume group of rootvg results in an error. What is the most likely cause of the error（） There is not an available disk to allocate to the snapshot volume group。 One of the physical volumes associated with rootvg has a status of "missing"。 Rootvg is running in enhanced concurrent mode。 A snapshot volume group cannot be created for the rootvg。
A user is unable to determine the default system texteditor. How can the local administrator assist the user by identifying the default text editor for the system?（） Login as the user and run 'echo $ENV'.。 Login as root and run the 'env' command.。 Login as root and 'cat /etc/environment'.。 Login as the user and run the 'env' command.。
保管合同的任何一方变更或解除合同不可以免除责任的是（） 在不损害国家利益的前提下，双方经过协商同意变更或解除合同的。 由于不可抗力的原因，造成合同无法履行。 当事人由于经济危机遭受亏损，无法履行合同的。 当事人一方由于抢险救灾，致使合同无法履行的。
Which of the following commands can be used to review the system error logs？（）
