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The group named support is unable to make changes to the config file. An administrator is reviewing the permissions and sees the following:

S Is -1 config

-rw-rw----. 1 root app 4682 02-15 11:25 config

Which of the following should the administrator execute in order to give the support group access to modify the file while preserving the current ownership?

A.

chown :support config

B.

setfacl -m g:support:rw- config

C.

chmod 664 config

D.

chmod g+s config

The application team is having issues accessing their data in their /app filesystem. Given the following outputs:

Which of the following is the reason for this issue?

A.

The fllesystem was mounted incorrectly.

B.

The /etc/fstab configuration is wrong.

C.

A physical volume is missing.

D.

The data has been deleted.

Which of the following would significantly help to reduce data loss if more than one drive fails at the same time?

A.

Server clustering

B.

Load balancing

C.

RAID

D.

VDI

A cloud engineer wants to delete all unused networks that are not referenced by any container. Which of the following commands will achieve this goal?

A.

docker network erase

B.

docker network clear

C.

docker network prune

D.

docker network rm

A Linux administrator needs to replace the content of the test1.sh file with the content of the test2.sh file. Which of the following commands will help accomplish this task?

A.

cat test2.sh >> test1.sh

B.

cat test2.sh > test1.sh

C.

cat test2.sh < test1.sh

D.

cat test2.sh « test1.sh

A DevOps engineer is working on a local copy of a Git repository. The engineer would like to switch from the main branch to the staging branch but notices the staging branch does not exist. Which of the following Git commands should the engineer use to perform this task?

A.

git branch -m staging

B.

git commit -m staging

C.

git status -b staging

D.

git checkout -b staging

A systems administrator is gathering information about a file type and the contents of a file. Which of the following commands should the administrator use to accomplish this task?

A.

file filename

B.

touch filename

C.

grep filename

D.

lsof filename

A Linux administrator has set up a new DNS forwarder and is configuring all internal servers to use the new forwarder to look up external DNS requests. The administrator needs to modify the firewall on the server for the DNS forwarder to allow the internal servers to communicate to it and make the changes persistent between server reboots. Which of the following commands should be run on the DNS forwarder server to accomplish this task?

A.

ufw allow out dns

B.

systemct1 reload firewalld

C.

iptables -A OUTPUT -p udp -ra udp -dport 53 -j ACCEPT

D.

flrewall-cmd --zone-public --add-port-53/udp --permanent

A Linux administrator is installing a web server and needs to check whether web traffic has already been allowed through the firewall. Which of the following commands should the administrator use to accomplish this task?

A.

firewalld query-service-http

B.

firewall-cmd --check-service http

C.

firewall-cmd --query-service http

D.

firewalld --check-service http

A Linux administrator modified the SSH configuration file. Which of the following commands should be used to apply the configuration changes?

A.

systemct1 stop sshd

B.

systemct1 mask sshd

C.

systemct1 reload sshd

D.

systemct1 start sshd