201-450 Exam Questions

The following is an excerpt from the output of tcpdump -nli eth1 'udp': 13:03:17.277327 IP 192.168.123.5.1065 > 192.168.5.112.53: 43653+ A? lpi.org. (25) 13:03:17.598624 IP 192.168...

During which stage of the boot process would this message be seen? ide_setup: hdc=ide-scsi

After configuring a new 2.4 series kernel, all dependencies, such as included files, need to be created. How can this be achieved?

Considering the following kernel IP routing table now, which of the following commands must be remove the route to the network 10.10.1.0/24? Kernel IP routing table Destination Gat...

Some users are unable to connect to specific local hosts by name, while accessing hosts in other zones works as expected. Given that the hosts are reachable by their IP addresses,...

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

What is the difference between zImage and bzImage targets when compiling a kernel?

A DNS server has the IP address 192.168.0.1. Which TWO of the following need to be done on a client machine to use this DNS server?

The mailserver is currently called fred, while the primary MX record points to mailhost.example.org. What must be done to direct example.org email towards fred?

Which of these ways can be used to only allow access to a DNS server from specified networks/hosts?

What information does the file modules.dep provide?

Before compiling a new kernel, what needs to be done?

On a system with separate partitions for /, /usr, /var, /tmp, which filesystem[s] can safely be mounted readonly?

Which of the following best describes the format of the /etc/fstab file?

Which of the following is a valid location in the automount configuration, when a Windows share needs to be made available to the system?

What script is included with the kernel source to patch a kernel?

Which command would you use to apply a diff file to an original?

One of the IDE hard drives in a server is transferring data very slowly. What command must be run to enable DMA on it?

What happens when the Linux kernel can't mount the root filesystem when booting?

You have written a little startup script (/usr/local/bin/startup.sh) that should automatically execute when entering runlevel 3. According to the standards, how can this best be ac...

What command is used to create an ISO9660 filesystem that can be properly accessed from a Windows 95/98 machine?

Messages from programs are not appearing in the user's native language. What environment variable must be set for this to happen?

When building an RPM package, which rpmbuild option is used to unpack sources and apply patches before proceeding with the next steps?

Which of the following must be included in the syslogd configuration file, so that ONLY kernel related messages with the priority crit are reported?

Which TWO statements about crontab are true?

What does the following script do? #!/bin/bash find / -perm +4000 | mail -s "Daily find output" root

A system has one hard disk, configured as master and connected to the primary IDE controller, and one CD writer, configured as slave and connected to the secondary IDE controller....

A new PCMCIA network card is not functioning correctly. To troubleshoot this, the socket information should be checked. How can this be done? (Choose two.)

Which command displays information about connected USB devices?

What command can be used to configure the baud rate on a serial port?

What command is used to re-add a partition to a software RAID setup?

Which TWO of the following sentences are true about this package? Consider the following excerpt from an RPM spec file: Summary: Complete Web authoring system for linux Name: nvu V...

In some older machines, the Linux kernel defaults to polling for the parallel printer port (/dev/lp0), even if it is capable of interrupt-driven operation (ECP). Which utility enab...

What is the purpose of the /etc/sysctl.conf file?

How do /etc/profile and /etc/bashrc differ?

What are the important (non-comment) contents of /etc/ld.so.conf?

A symbolic link is called /etc/rc.d/rc3.d/S80sendmail. Assuming this symbolic link is correctly placed and functions in the expected way, what will it do?

Which of the following is a global non-login bash startup script?

What command must you type as root to have the system re-scan the directories on the library path to enable programs to find dynamic libraries in these directories?

You've determined that the SSH server is being started by the /etc/rc2.d/S16ssh startup script (or a link of that name). You want to prevent this server from running in runlevel 2....

Which of the following is not a common bash startup script file?

You type sysctl -a as root. What can you expect to have happen?

What directory is commonly used as a supplemental location for additional scripts called by the global bash login script?

Which of the following lines, if used in a user cron job, will run /usr/local/bin/cleanup twice a day?

To alter a Linux system's default runlevel, what would you do?

You use top to examine the CPU time being consumed by various processes on your system. You discover that one process, dfcomp, is consuming more than 90 percent of your system's CP...

What is wrong with the following system cron job entry (in /etc/crontab)? 17 * * * * run-parts /etc/cron.hourly

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?

In capacity planning exercises, which tools assist in listing and identifying processes of interest? (Choose TWO correct answers.)

Which of the following tools are used to measure memory usage? (Choose THREE correct answers.)