Free Access CompTIA.XK0-004.v2023-01-09.q131 Practice Test (Page 27)

Question 126

A Linux amdinisrator is adding a user's local Linux account to the accounting group. The user is also a member of the finance group. Which of the following is the BEST way to add the user to the accounting group while still maintaining the user's existing group members ships?

A.Usermod -G accounting, finance user1

B.Usermod -G accounting user1

C.Usermod -aG accounting user1

D.Usermod -G accounting user1

Question 127

A Linux engineer is troubleshooting a newly added SCSI device for a Linux server that needed more disk space without rebooting. The engineer discovers that the new device is not visible by the Linux kernel in fdisk -l output. Which of the following commands should be used to rescan the entire SCSI bus?

A.echo "scan" > /sys/class/scsi_host/host0/scan

B.echo "- - -" > /sys/class/scsi_host/host0/scan

C.echo ' ' > /sys/class/scsi_host/host0/scan

D.echo "- - -" > /sys/scsi/scsi_host/host0/scan

Question 128

While mount: mount point /mnt/test does not exist
Which of the following commands best describes the action the Linux administrator should take NEXT?

A.mkfs /mnt/test

B.mount -a /mnt/test

C.touch /mnt/test

D.mkdir -p /mnt/test

E.mdadm -p /mnt/test

Question 129

A Linux administrator needs to remotely update the contents of the www.comptia.org/contacts URL.
Which of the following commands would allow the administrator to download the current contents of the URL before updating?

A.apt-get www.comptia.org/contacts

B.yum list www.comptia.org/contacts

C.dig www.comptia.org/contacts

D.curl www.comptia.org/contacts

Question 130

All users are reporting that they cannot connect to the SFTP server. The administrator runs a scan:

Which of the following would allow the administrator to fix the problem?

A.Allow SFTP connections on port 22 using /etc/sysconfig/iptables.

B.Allow SFTP connections on port 20 and 21 using /etc/sysconfig/iptables.

C.Allow SFTP connections on port 25 using /etc/sysconfig/iptables.

D.Allow SFTP connections on port 1456 using /etc/sysconfig/iptables.

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