Objectives 2
Given the full list of 64 LFCS exam objectives, what are the 10 things that a prospective RHEL-based LFCS exam taker should have mastered? Please give sample commands.
Sure, here are 10 things that a prospective RHEL-based LFCS exam taker should have mastered:
Creating, deleting, copying, and moving files and directories:
- Creating a directory:
mkdir directory_name - Copying a file:
cp file1 file2 - Moving a file:
mv file1 file2 - Deleting a file:
rm file
- Creating a directory:
Using regular expressions to analyze text:
- Searching for a string:
grep string filename - Replacing a string:
sed 's/string/replacement/g' filename
- Searching for a string:
Managing access to the root account:
- Adding a user to the sudoers file:
visudo - Creating a new user:
useradd username - Granting sudo privileges to a user:
usermod -aG wheel username
- Adding a user to the sudoers file:
Diagnosing and managing processes:
- Listing running processes:
ps aux - Killing a process:
kill PID - Monitoring system resources:
top
- Listing running processes:
Configuring networking and hostname resolution:
- Setting a static IP address:
nmcli con mod eth0 ipv4.addresses "IP_ADDRESS" - Configuring hostname:
hostnamectl set-hostname hostname
- Setting a static IP address:
Configuring an HTTP server:
- Installing Apache web server:
sudo yum install httpd - Starting Apache web server:
sudo systemctl start httpd - Configuring Apache web server:
sudo vi /etc/httpd/conf/httpd.conf
- Installing Apache web server:
Managing and configuring containers:
- Installing Docker:
sudo yum install docker - Starting Docker:
sudo systemctl start docker - Pulling a Docker image:
sudo docker pull image_name
- Installing Docker:
Managing and configuring virtual machines:
- Installing KVM:
sudo yum install qemu-kvm - Creating a new virtual machine:
virt-install --name vm_name --ram 2048 --disk size=20 --vcpus 2 --cdrom /path/to/iso --graphics vnc
- Installing KVM:
Configuring and managing LVM storage:
- Creating a physical volume:
sudo pvcreate /dev/sdb - Creating a volume group:
sudo vgcreate vg_name /dev/sdb - Creating a logical volume:
sudo lvcreate -n lv_name -L 10G vg_name
- Creating a physical volume:
Managing and configuring file systems:
- Creating a new file system:
sudo mkfs.ext4 /dev/sdb1 - Mounting a file system:
sudo mount /dev/sdb1 /mnt - Adding an entry to /etc/fstab to mount a file system automatically at boot:
/dev/sdb1 /mnt ext4 defaults 0 0
- Creating a new file system:
These are just a few examples of the commands and techniques that a prospective RHEL-based LFCS exam taker should have mastered. It's important to note that the exam objectives cover a wide range of topics, and the best way to prepare is to review the objectives thoroughly and practice using the relevant commands and techniques in a lab environment.