Operating Systems & Command Line (CCST IT Support) Flashcards
Cisco CCST IT Support 100-140 Flashcards

| Front | Back |
| APFS stands for | Apple File System |
| Bootloader commonly used by Linux | GRUB2 |
| Command to allow or block firewall port Windows | netsh advfirewall firewall add rule |
| Command to bring up interface Linux | ip link set dev interface up |
| Command to change file ownership Linux | chown user:group filename |
| Command to change file permissions Linux | chmod 755 filename |
| Command to change runlevel or target Linux systemd | systemctl isolate multi user.target or graphical.target |
| Command to check disk for errors Windows | chkdsk C: /f /r |
| Command to check disk SMART status Linux | smartctl -a /dev/sdX |
| Command to check disk usage Linux | df -h |
| Command to check file system for errors Linux ext4 | fsck -f /dev/sdXN |
| Command to check free memory Linux | free -h |
| Command to check listening TCP ports Linux | ss -tuln |
| Command to check system logs Linux | journalctl -xe |
| Command to copy files with progress Linux | rsync -avh --progress source dest |
| Command to display routing table Linux | ip route show |
| Command to install packages Debian based Linux | apt install package |
| Command to list disks in macOS | diskutil list |
| Command to list files with details Linux | ls -la |
| Command to list installed packages Debian based Linux | dpkg -l |
| Command to list mounted file systems Linux | mount |
| Command to list processes in Linux | ps aux |
| Command to map network drive Windows | net use Z: \\server\share |
| Command to monitor real time system resource usage Linux | top or htop |
| Command to release and renew DHCP lease Windows | ipconfig /release then ipconfig /renew |
| Command to repair disk in macOS | diskutil repairVolume / |
| Command to show active network interfaces Linux | ip addr show |
| Command to unmount drive macOS or Linux | umount /path or diskutil unmount /dev/diskX |
| Command to view IP config in Windows | ipconfig /all |
| File system commonly used on Linux | ext4 |
| File system used by modern Windows | NTFS |
| How to boot Windows into Safe Mode | Hold Shift and click Restart then Troubleshoot Advanced options Startup Settings |
| How to change boot order UEFI | Enter UEFI settings from firmware menus change Boot Order |
| How to create a swap file Linux | fallocate or dd then mkswap then swapon |
| How to enable FileVault macOS | System Preferences Security Privacy FileVault turn on |
| How to enable remote desktop Windows | System Properties Remote tab enable Remote Desktop |
| How to enable SSH on macOS or Linux | Install enable and start sshd service or enable Remote Login |
| How to perform a clean install Windows | Boot from installation media choose Custom remove partitions and install |
| How to rebuild Windows BCD | Use bootrec /rebuildbcd from Windows RE |
| How to repair grub from live Linux | Mount partitions chroot update grub reinstall grub |
| How to reset a forgotten Windows local password | Boot to recovery use net user to set new password or use password reset disk |
| How to reset NVRAM macOS | Option Command P R at startup hold for two chimes |
| How to roll back a problematic driver Windows | Device Manager right click device Properties Driver Roll Back Driver |
| How to update drivers Windows | Device Manager right click device Update Driver |
| Linux command to find files by name | find /path -name pattern |
| macOS recovery mode key | Command R at startup |
| macOS tool to view system logs | Console app |
| Purpose of UEFI | Modern firmware replacing BIOS with secure boot and faster startup |
| Tool to create bootable USB macOS | use createinstallmedia in Terminal |
| Tool to create bootable USB Windows | Rufus |
| Tool to manage Windows services | services.msc |
| Tool to recover deleted files Linux | testdisk or photorec |
| Tool to reinstall macOS from internet | macOS Recovery Internet Recovery |
| Tool to repair Windows system files | sfc /scannow |
| What is a swap partition or file | Space used for virtual memory to extend RAM |
| What is BitLocker | Windows drive encryption feature |
| What is Secure Boot | UEFI feature that verifies signed bootloaders to prevent tampering |
| What is the Windows registry | Hierarchical database of system and application settings |
| Windows event viewer path | eventvwr.msc |
| Windows tool to clean up disk space | Disk Cleanup or Storage Sense |
Related Study Materials
About the Flashcards
Flashcards for the Cisco CCST IT Support exam give you quick recall of the essential operating-system commands and utilities tested on the certification. Review how to troubleshoot Windows, macOS, and Linux with tools like ipconfig, diskutil, chkdsk, fsck, and systemctl while reinforcing GUI paths for Safe Mode, Device Manager, and Event Viewer. Commands for networking, process monitoring, and package management are included so you can diagnose connectivity and performance issues under exam pressure.
The deck also sharpens your understanding of file systems such as NTFS, ext4, and APFS, boot technologies like UEFI, Secure Boot, and GRUB2, and security features including BitLocker, FileVault, and firewall rules. Practice registry concepts, driver maintenance, swap management, and data recovery techniques to master the terminology and procedures the exam expects.
Topics covered in this flashcard deck:
- Windows maintenance commands
- macOS recovery tools
- Linux shell administration
- Boot and UEFI concepts
- File systems & storage
- Security and encryption