Online Access Free 201-450 Exam Questions

Which of the following commands shows capabilities and usable frequencies for the wireless interface wlan0?

• A.iw phy0 show
• B.iw phy pyh0 info
• C.iw dev wlan0 info
• D.iw phy wlan0 show
• E.iw dev wlan0 show

An administrator has placed an executable in the directory /etc/init.d, however it is not being executed when the system boots into runlevel 2. What is the most likely cause of this?

• A.The script has the permissions 700 and is owned by root
• B.The script has not been declared in /etc/services
• C.runlevel 2 is not declared in /etc/inittab
• D.A corresponding link was not created in /etc/rc2.d

The user fred creates a cron job to retrieve email from a remote server using the fetchmail program. What is true of this cron job, if it's properly configured?

• A.The fetchmail process runs with the fred UID.
• B.The fetchmail process runs with the root UID
• C.The fetchmail process runs with the nobody UID.
• D.The fetchmail process runs with the crontab UID.

If the command arp -f is run, which file will be read by default?

• A./etc/arp.conf
• B./etc/networks
• C./etc/ethers
• D./etc/hosts
• E./var/cache/arp

What option in the collectd configuration file is required in order to define what to start monitoring?

• A.LoadPlugin
• B.LoadModule
• C.Plugin
• D.Module