All About 201-450 test question Aug 2021

New Questions 5

The correct command sequence to create and mount logical volumes on a Linux system is:

A. lvcreate, pvcreate, vgcreate, mkfs, mount

B. pvcreate, vgcreate, lvcreate, mkfs, mount

C. vgcreate, lvcreate, pvcreate, mount, mkfs

D. mkfs, pvcreate, vgcreate, lvcreate, mount

E. pvcreate, lvcreate, vgcreate, mkfs, mount

New Questions 6

If all of the following files and/or symlinks exist in a SysV-init runlevel directory, which of the following will be executed first when booting the system directly into the runlevel?

A. S99lpi

B. K99lpi

C. PRE-S99lpi

D. S98lpi

E. S99a-lpi

New Questions 7

How is the source code for the main Linux kernel modules distributed?

A. It is included with the Linux kernel source code.

B. The kernel modules are downloaded on demand as they are used during compilation.

C. The kernel modules have their own release cycle and can be maintained separately from the Linux kernel source.

D. It is provided as a separate download alongside the Linux kernel source code of the same version.

New Questions 8

What is the minimum number of disks required in a fully redundant RAID5 array?

A. 1

B. 2

C. 3

D. 4

E. 5

New Questions 9

In the following output, what percentage of time was the CPU waiting for pending I/O?

# vmstat 1 100

procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----

r b swpd free buff cache si so bi bo in cs us sy id wa

0 0 0 282120 134108 5797012 0 0 0 2 0 0 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1007 359 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1117 577 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1007 366 0 0 100 0

A. 0

B. 100

C. 35.9

D. 57.7

E. 36.6

New Questions 10

The main configuration file for autofs has this entry:

New Questions 11

In this example output, which descriptions match the purpose of the free, buff and cache columns? (Choose THREE correct answers.)

# vmstat 1 100

procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----

r b swpd free buff cache si so bi bo in cs us sy id wa

0 0 0 282120 134108 5797012 0 0 0 2 0 0 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1007 359 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1117 577 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1007 366 0 0 100 0

A. Used swap space

B. RAM available for filesystem buffers

C. Available free RAM

D. RAM used for buffers

E. RAM used for filesystem cache

New Questions 12

What is the functionality that PXE provides?

A. The ability to boot a computer using its network interface.

B. The ability to launch an remote X11 desktop on a computer.

C. The ability to verify a system's configuration after completing the boot process.

D. The ability to verify a system's configuration before completing the boot process.

New Questions 13

Which file tells GRUB the paths of the filesystem partitions in both Linux format and in the GRUB syntax? (Specify the file name only with no path information)

New Questions 14

According to the Filesystem Hierarchy Standard (FHS), what is the path to the Linux kernel source and may be a symbolic link to the real Linux source code? (Please specify the full path with no version information.)