050-720 試験問題を無料オンラインアクセス

What is the correct syntax for mounting the second partition of the first SCSI hard disk?

• A.mount /mnt /dev/sda2
• B.mount /mnt /dev/sdb1
• C.mount /dev/hda2 /mnt
• D.mount /mnt /dev/hda2
• E.mount /dev/sda2 /mnt
• F.mount /dev/sdb1 /mnt

What action does the jobs command perform?

• A.Lists the content of the shell's job control
• B.Lists all mail items in the mail queue
• C.Lists all print jobs in the print queue.
• D.Lists all scheduled cron jobs

Which group name is stored in /etc/passwd?

• A.Effective group
• B.Primary group
• C.Secondary group
• D.No group name is stored there.

You want to view the last 20 lines of the /var/log/messages file and any new lines that are subsequently added by syslog to this file. Which command would you use?

• A.less -20f /var/log/messages
• B.follow -20 /var/log/messages
• C.tail -20f /var/log/messages
• D.end -20f /var/log/messages

Which statement about symmetric encryption is correct?

• A.A public key and a private key are needed for symmetric encryption/decryption.
• B.Symmetric keys are generally longer than asymmetric keys.
• C.Asymmetric encryption is generally faster than symmetric encryption.
• D.The same key is used for encryption and decryption.