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81. You want to create a symbolic link in your home directory that will link the manual file to the /usr/test/lts/learning directory. Which of the following commands should you use?
82. Jack is troubleshooting a Linux system that cannot open Web pages from the Internet. He has verified the configuration using ifconfig. He has also checked that the hosts can be pinged on the Internet using IP addresses. Which of the following could be the most likely cause of the problem?
83. Jack has installed a new 300GB IDE hard drive in a Linux system. However, his CMOS setup program only detects 160GB. Which of the following is the most likely cause?
85. Jack is using a user account named jackrusl. You want to set password age limits for this user account. The minimum password age should be 5 days and the maximum password age should be 60 days. You also need to warn the user 2 days prior to password expiration. Which of the following command should you use?