A networked has been crashing intermittently. A Linux administrator would like to write a shell script that will attempt to ping the server and email an alert if the server fails to respond. The script will later be scheduled via cron job.
Which of the following scripts would BEST accomplish this task?

• A.
• B.
• C.
• D.

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A Linux administrator has configured a local named caching server to reduce the amount of time to resolve common DNS addresses. The server resolves using the external server, however; the administrator wants to avoid this configuration. The administrator verifies the named, conf settings to confirm the following relevant settings:
The administrator then runs dig twice to look up an external address and receives the following relevant output the second time.

Which of the following should the administrator do to correct the configuration?

• A.Alias the dig commands to use nslookup instead.
• B.Configure the name service in system to be masked
• C.Add 1270.0.1 to the forwards in the named confi file.
• D.Modify /etc/resolve.config and set nameserver to 127.0.0.1

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A systems administrator is implementing disk quotas on /home. During the process, the administrator receives
the following error:
Cannot find filesystem to check or filesystem not mounted with user quota option.
Which of the following is the correct order of steps the administrator should follow to resolve this error?

• A.1. Verify if /home has quotas enabled in /etc/fstab and, if not, enable it.
  2. Remount /home.
  3. Create the quota database files and generate the disk usage table.
  4. Assign user quota policies.
• B.1. Create the quota database files and generate the disk usage table.
  2. Verify if /home has quotas enabled in /etc/fstab and, if not, enable it.
  3. Remount /home.
  4. Assign user quota policies.
• C.1. Verify if /home has quotas enabled in /etc/fstab and, if not, enable it.
  2. Create the quota database files and generate the disk usage table.
  3. Remount /home.
  4. Assign user quota policies.
• D.1. Assign user quota policies.
  2. Verify if /home has quotas enabled in /etc/fstab and, if not, enable it.
  3. Create the quota database files and generate the disk usage table.
  4. Remount /home.

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Which of the following directories contains information related to various runtime processes, such as hardware and system memory?

• A./Usr/bin
• B./Proc
• C./etc/local/
• D./Opt

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A Linux administrator suspects unauthorized users are attempting to log in to the Linux server remotely.
Which
of the following should the administrator check FIRST?

• A./var/log/secure
• B./var/log/kern.log
• C./var/log/dmesg
• D./var/log/messages

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