201-450 Free Practice Test

A system with SysV-init has a service installed called apache2. Which file controls the start and stop of this service and is referenced by the various runlevel directories?

1. A. /etc/init.d/apache2
2. B. /etc/rc2.d/70apache2
3. C. /etc/rc2.d/apache2
4. D. /etc/rc2.d/apache2.start

Correct Answer: A

How can the kernel parameter for the maximum size of the shared memory segment (shmmax) be changed to 2GB (2147483648 Bytes) on a running system? (Choose TWO correct answers.)

1. A. Edit /etc/shmmax and set the parameter to 2147483648.
2. B. sysctl shmmax=2147483648
3. C. sysctl kernel.shmmax=2147483648
4. D. echo 2147483648 > /proc/sys/kernel/shmmax
5. E. export kernel.shmmax=2147483648

Correct Answer: CD

Which of the following commands will list the IPv4 neighbors of the current system? This includes IP and MAC addresses. (Choose TWO correct answers.)

1. A. arp
2. B. ifconfig -lv eth0
3. C. netstat -al
4. D. ip neigh show

Correct Answer: AD

What is the command to add another IP address (192.168.1.2) to a network interface (eth0) that already has (at least) one IP address in the 192.168.1.0/24 subnet?

1. A. ip add addr 192.168.1.2/32 dev eth0
2. B. ifconfig eth0 192.168.1.2 netmask 255.255.255.255
3. C. ip addr add 192.168.1.2/32 dev eth0
4. D. ipconfig eth0 192.168.1.2

Correct Answer: C

The main configuration file for autofs has this entry:
/home /etc/auto.home
What is the meaning of the /etc/auto.home file?

1. A. It has the indirect maps for the mounting of file systems.
2. B. It has configuration information, such as passwords and keys, for the remote file server.
3. C. It has configuration information on settings for the /home mount point.
4. D. It is the holds the SSL key to allow authentication to the remote file server.

Correct Answer: A