201-450 | Up to the immediate present 201-450 Exam Study Guides With New Update Exam Questions

New Questions 2

What is the purpose of a system mount unit?

A. It is used by the command systemd-mount and allows users to mount partitions to mount points of their choice

B. It is used only to mount network file systems to local mount points. It cannot be used for local media

C. It is created by the command systemd-fstab-generator to integrate entries from /etc/fstab into the system boot process

D. It is used by the command mount when using system to mount and unmount file systems

Answer: A

New Questions 3

Which file contains the message that is displayed above the login prompt of the system console? (Specify the full name of the file, including path.)

Answer:

/etc/issue

New Questions 4

Which of the following commands is used to set up a RAID volume?

A. makerd

B. mdadm

C. mkfs.raid

D. makeraid

E. rdconfig

Answer: B

New Questions 5

A regular user, joe, has just run:

./configure && make && make install

to build and install a program. However, the installation fails. What could be done to install the program? (Choose TWO correct answers.)

A. Install the binaries manually with suinstall.

B. Run make install with root privileges.

C. Do not run ./configure in order to maintain the default configuration for correct installation.

D. Rerun ./configure with a --prefix option where the user has permissions to write.

E. Run make install_local to install into /usr/local/.

Answer: BD

New Questions 6

What should be done to ensure a client machine uses the recursive nameserver running on the IP address 192.168.1.1 ? (Choose TWO correct answers.)

A. Add nameserver 192.168.0.1 to /etc/resolv.conf.

B. Run route add nameserver 192.168.0.1.

C. Run ifconfig eth0 nameserver 192.168.0.1.

D. Ensure that the dns service is listed in the hosts entry in the /etc/nsswitch.conf file.

E. Run bind add nameserver 192.168.0.1.

Answer: AD

New Questions 7

A network client has an ethernet interface (eth0) configured with an IP address in the subnet 192.168.0.0/24. This subnet has a router, with the IP address 192.168.0.1, that connects this subnet to the Internet. What needs to be done on the client to enable it to use the router as its default gateway? (Choose TWO correct answers.)

A. route add default gw 192.168.0.1 eth0

B. ifconfig eth0 defaultroute 192.168.0.1

C. ip route add default via 192.168.0.1 dev eth0

D. echo defaultroute 192.168.0.1 >> /etc/resolv.conf

E. route add defaultgw=192.168.0.1 if=eth0

Answer: AC

New Questions 8

A web application server contains 64GB of RAM and two swap partitions on normal hard disk drives, each with a size of 64 GB. Within the last month, the average number of user sessions on this server has grown by 20 percent. At the same time, the average usage of RAM increased from 65 to 75 percent, while the swap space is almost not used at all. It is expected that the number of user sessions will continue to increase by about 15 to 20 percent each month. Which of the following reactions would be appropriate in response to these observations? (Choose two.)

A. Delay any hardware upgrade until there is a significant consumption of swap space to ensure an efficient usage of the available hardware

B. Create a RAID 1 device on the two swap partitions to avoid data loss in case swap space has to be used in the future

C. Consider the installation of an additional application server to distribute the load if the expected growth continues over several months

D. Move the web applicationu2021s scripts and content a ram disk in order to ensure fast access and to avoid the need for swap space

E. Update the hardware to increase the amount of available RAM to avoid using swap space

Answer: CE

New Questions 9

Which directory contains system-specific systemd unit files? (Specify the full path to the directory.)

Answer:

/lib/systemd/system

New Questions 10

In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?

A. sa1

B. sarmon

C. sarec

D. sadf

E. sarcron

Answer: A

New Questions 11

Which of the following commands creates a Btrfs subvolume named volume in/mnt?

A. btrfs subvolume add u2013n volume /mnt

B. btrfs create subvolume /mnt volume

C. btrfs-subvolume create /mnt/volume

D. btrfs subvolume new volume /mnt

E. btrfs subvolume create /mnt/volume

Answer: E