Comptia
XK0-004 Exam
Questions

CompTIA Linux+ XK0-004

Comptia (XK0-004) Exam Questions And Answers page 47

What command should an administrator use to kill the oldest Bash shell running in the system?

Single Choice

An administrator needs to kill the oldest Bash shell running in the system. Which of the following commands should be issued to accomplish this task?

ps axjf | grep bash to obtain PID
kill -9 PID

ps eo pid,etime,cmd | grep bash (to obtain PID)
kill -9 PID

ps eo pid,etime| grep bash (to obtain PID)
killall -9 PID

killall -15 -o bash

Scripting and Automation Shells, Scripting, and Data Management

What is the role of the Architecture Contract in establishing the connection between architecture and implementation organizations in the ADM phase?

Single Choice

Which ADM phase establishes the connection between the architecture organization and the implementation organization through the Architecture Contract?

Phase E

Phase F

Phase G

Phase H

Requirements Management

System Configuration and Management Administrative Tasks

How to allow HTTP connections from Internet hosts on a Linux server using firewall rules?

Single Choice

A systems administrator needs to allow the Linux server to receive HTTP connections from Internet hosts. By default, the port for HTTP connections is blocked. Which of the following rules should be added in the firewall to allow this type of connection?

firewall-cmd --zone=public --add-port=443/tcp --permanent

firewall-cmd --zone=internal --add-port=80/tcp --permanent

firewall-cmd --zone=public --add-port=80/tcp --permanent

firewall-cmd --zone=internal --add-port=443/tcp --permanent

Networking Fundamentals

What is the architecture domain that describes the logical software and hardware capabilities?

Single Choice

Which of the following is the architecture domain that describes the logical software and hardware capabilities?

Application Architecture

Business Architecture

Data Architecture

Technology Architecture

System Configuration and Management Networking Fundamentals

Which command can be used to determine the amount of memory installed on a Linux server?

Single Choice

An administrator wants to know the amount of memory installed on a Linux server. Which of the following commands can be used to accomplish this task?

cat /sys/proc/meminfo

cat /proc/meminfo

cat /proc/sys/meminfo

cat /sys/meminfo

Command Line Interface Scripting and Automation

What command does a Linux administrator need to issue for a router to be fully functional?

Single Choice

A Linux administrator has configured a Linux system to be used as a router. The administrator confirms that two network adapters are properly installed and functioning correctly. In addition, the output of the iptables L command appears to contain a complete firewall configuration.

Which of the following commands does the administrator need to issue for the router to be fully functional?

echo 1 > /proc/sys/net/ipv4/ip_forward

echo 0 > /proc/sys/net/ipv4/tcp_abort_on_overflow

echo 0 > /proc/sys/net/ipv4/max_connections

echo 1 > /proc/sys/net/ipv4/ip_default_ttl

Networking Fundamentals Security

How to address the issue of users unable to connect to a server using HTTPS?

Single Choice

Users are unable to connect to a server using HTTPS. The administrator runs the following command on the remote system:

Then, the administrator runs the following command from a local workstation:

Which of the following steps should the administrator take to address the issue?

Start the application to run on port 443

Configure the application to run on an active port

Allow port 443 through the firewall

Update the self-signed certificate

Networking Fundamentals Security

Which ADM phase involves establishing the Architecture Capability and defining Architecture Principles?

Single Choice

What ADM phase includes establishing the Architecture Capability and definition of Architecture Principles?

Phase C: Data Architecture

Preliminary Phase

Phase A: Architecture Vision

Phase F: Migration Planning

Phase B: Business Architecture

System Configuration and Management Administrative Tasks

What is the best command to run the yum update two hours after employees log off on Friday?

Single Choice

A systems administrator needs to run the yum update command two hours after employees log off and leave for the day on Friday.

Which of the following is the BEST command to complete the task, if the task only needs to be run once?

screen

cron

nohup

Command Line Interface Administrative Tasks

How to grant network_administrators group sudo access without password prompt?

Multiple Choice

A junior systems administrator is tasked with providing the network_administrators group the ability to perform sudo without prompting for a password. Which of the following steps should the administrator perform to accomplish this task? (Choose two.)

Use visudo to edit the /etc/sudoers file and add network_administrators to the wheel group

Use vi to edit the /etc/sudo file and add network_administrators to the wheel group

Provide all network_administrators with the root account password

Add the network_administrators ALL=(ALL) NOPASSWD: ALL directive to the /etc/sudoers file

Add the network_administrators =(ALL) NOEXEC: ALL directive to the /etc/sudoers file

Command Line Interface Shells, Scripting, and Data Management

Comptia (XK0-004) Exam Questions And Answers page 47

What command should an administrator use to kill the oldest Bash shell running in the system?

Correct Answer:

References:

Comments

What is the role of the Architecture Contract in establishing the connection between architecture and implementation organizations in the ADM phase?

Comments

How to allow HTTP connections from Internet hosts on a Linux server using firewall rules?

Comments

What is the architecture domain that describes the logical software and hardware capabilities?

Comments

Which command can be used to determine the amount of memory installed on a Linux server?

Comments

What command does a Linux administrator need to issue for a router to be fully functional?

Comments

How to address the issue of users unable to connect to a server using HTTPS?

Comments

Which ADM phase involves establishing the Architecture Capability and defining Architecture Principles?

Comments

What is the best command to run the yum update two hours after employees log off on Friday?

Comments

How to grant network_administrators group sudo access without password prompt?

Comments

{{ exam.shortName }}

{{ exam.longName }}