Comptia
XK0-004 Exam
Questions

CompTIA Linux+ XK0-004

Comptia (XK0-004) Exam Questions And Answers page 32

How can the Linux Kernel WatchDog Timer Driver be disabled for security purposes?

Single Choice

A systems administrator wants to disable the Linux Kernel WatchDog Timer Driver for security purposes. Which of the following will accomplish this task?

Add blacklist watchdog to the /etc/modprobe.d/blacklist file.

Rename the /etc/modprobe.d/watchdog file to watchdog.off instead.

Remove the watchdog=1 from the /usr/modules/watchdog.conf file.

Add watchdog=0 to the /etc/modprobe.conf file.

Devices, Linux Filesystems, and Filesystem Hierarchy Standard Essential System Services

What are legacy systems and processes considered in TOGAF for future use?

Single Choice

Complete the sentence. In TOGAF, legacy systems and processes that are going to be used again in the future are considered ______

Architecture Building Blocks

Components

Patterns

Re-usable Building Blocks

Solution Building Blocks

Devices, Linux Filesystems, and Filesystem Hierarchy Standard Administrative Tasks

Why can't users access collaborate.company.com from the user VLAN and how can it be fixed?

Single Choice

Users are reporting collaborate.company.com is inaccessible from the user VLAN, but there is no issue connecting to the system s web page from the DMZ. Given the following outputs from commands run on the system:

Which of the following explains why users are unable to access the system from the user VLAN, and how can the administrator remediate this issue?

Users cannot access the system because the IP subnet mask is /24. The remediation for this issue is to set the IP subnet mask to /16.

Users cannot access the system because the DNS server has the incorrect IP address. The remediation for this issue is to edit the DNS configuration to point to the correct IP.

Users cannot access the system because the connectivity port is running on the incorrect IP. The remediation for this issue is to edit the configuration file to listen on all interfaces.

Users cannot access the system because the default gateway has the wrong interface. The remediation for this issue is to set the default gateway to the proper interface.

Networking Fundamentals Security

How can an administrator increase the size of the volume /dev/vg/lv to 20GB?

Single Choice

An administrator is tasked with increasing the size of the volume /dev/vg/lv to 20GB. Which of the following BEST illustrates the steps the administrator should take?

vgextend L20G /dev/vg/lv; resizelv /dev/vg/lv

parted L20G /dev/vg/lv; remount /dev/vg/lv

mkfs L20G /dev/vg/lv; tune2fs /dev/vg/lv

lvextend L20G /dev/vg/lv; resize2fs /dev/vg/lv

Scripting and Automation Devices, Linux Filesystems, and Filesystem Hierarchy Standard

Where Is the 'vmlinuz' File Typically Found in Linux Filesystem Hierarchy?

Single Choice

In which of the following directories is the vmlinuz file located?

/boot

/etc

/bin

/proc

Devices, Linux Filesystems, and Filesystem Hierarchy Standard

How to invoke GRUB2 from the EFI command prompt on a UEFI-based system?

Single Choice

On a UEFI-based system, which of the following invokes GRUB2 from the EFI command prompt?

boot//EFI/grub2.efi

EFI/grub2.efi

/boot/EFI/grub2.efi

/grub2.efi

Command Line Interface Networking Fundamentals

How to add user jsmith to the dba group without removing existing group memberships?

Multiple Choice

A user, jsmith, needs access to database files located on a server. Which of the following will add jsmith to the dba group and preserve existing group memberships?

usermod a G dba jsmith

usermod g dba jsmith

useradd g dba jsmith

groupmod dba u jsmith

Command Line Interface Shells, Scripting, and Data Management

Which tool can be used to retrieve specific fields from a CSV file?

Single Choice

A systems administrator needs to retrieve specific fields from a CSV file. Which of the following tools would accomplish this task?

echo

awk

sort

Command Line Interface Scripting and Automation

What is the best approach for deploying multiple applications with minimal footprint and abstraction?

Single Choice

A systems administrator wants to deploy several applications to the same server quickly. Each application should be abstracted from the host with its own dependencies and libraries and utilize a minimal footprint.

Which of the following would be BEST in this scenario?

Virtual machines

Type 2 hypervisor

Chroot jails

Containers

Scripting and Automation Shells, Scripting, and Data Management

How to troubleshoot a Bluetooth mouse that is not working properly on a computer?

Single Choice

A user has connected a Bluetooth mouse to a computer, but it is not working properly. Which of the following commands should the systems administrator use to fix the issue?

lsmod i bluetooth

insmod bluetooth

modprobe r bluetooth

depmod i bluetooth

Devices, Linux Filesystems, and Filesystem Hierarchy Standard Networking Fundamentals

Comptia (XK0-004) Exam Questions And Answers page 32

How can the Linux Kernel WatchDog Timer Driver be disabled for security purposes?

Comments

What are legacy systems and processes considered in TOGAF for future use?

Comments

Why can't users access collaborate.company.com from the user VLAN and how can it be fixed?

Comments

How can an administrator increase the size of the volume /dev/vg/lv to 20GB?

Comments

Where Is the 'vmlinuz' File Typically Found in Linux Filesystem Hierarchy?

Correct Answer:

References:

Comments

How to invoke GRUB2 from the EFI command prompt on a UEFI-based system?

Correct Answer:

References:

Comments

How to add user jsmith to the dba group without removing existing group memberships?

Correct Answers:

Explanation:

References:

Comments

Which tool can be used to retrieve specific fields from a CSV file?

Correct Answer:

References:

Comments

What is the best approach for deploying multiple applications with minimal footprint and abstraction?

Comments

How to troubleshoot a Bluetooth mouse that is not working properly on a computer?

Comments

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