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Linux Master 1 · 1급KAIT Linux Master - Level 1
  • Week 1
    • 1.Operating Systems and Linux: What the Kernel Does
    • 2.Free Software and Distributions: The Ecosystem Built by Licenses
    • 3.Installation and Booting: From the Moment You Power On
    • 4.Filesystem Structure and File Types: Everything Is a File
    • 5.Week 1 Comprehensive Review: Time to See Through the Concepts
  • Week 2
  • Week 3
  • Week 4
  • Week 5
  • Week 6
  • Week 7
  • Week 8
  • Week 9
  • Week 10
  • Week 11
  • Week 12
  • Week 13
  • Week 14
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← All certifications/Linux Master 1

KAIT Linux Master - Level 1

14 weeks · 72 days · Grade 1

Start with Week 1

Read Linux Master 1 pass reviews →

Exam Information

Advanced · Heavy emphasis on memorizing commands and configuration files
Passing
60점 이상 (과목당 40% 미만 과락)
StageQuestionsDurationFormatCost
1차(필기)100문항100min필기(사지선다)55,000원
2차(실기)필기 10문항 + 실기 5~7문항100min필기 40%(단답·서술식) + 실기 60%(작업식)77,000원

Subjects

  • Understanding Practical Linux
  • Linux System Administration
  • Using Linux Networking and Services
PrerequisitesThere are no eligibility requirements for Part 1. Part 2 is open only to Part 1 passers, who may take it within 2 years of the results announcement date.
LanguagesKorean

Benefits & Tips

  • Passing earns you a 50% discount voucher for your next exam. Find it under "Benefits" in your AWS Certification account and use it for recertification or another certification (it has an expiry date, so use it before then).
  • The certification is valid for 3 years and must be renewed before it expires. You can use the 50% voucher for recertification too.
  • There is no free retake (every attempt is paid in full). Passing on the first try is the cheapest route, so take the real exam once your mock exam scores clear the passing mark.
  • Passing also earns you a Credly digital badge that you can add to LinkedIn and your email signature.

FAQ

How is the Linux Master Level 1 exam administered?+

It has two stages: Part 1 (written) and Part 2 (practical). Part 1 consists of 100 multiple-choice questions with four options in 100 minutes. Part 2 consists of 10 short-answer or essay written questions plus 5 to 7 hands-on practical tasks, in 100 minutes. Part 2 is weighted 40% written and 60% practical.

What is the passing standard?+

A score of 60 or higher passes, and scoring below 40% in any subject is an automatic fail. This standard applies to Part 1 and Part 2 separately.

How much is the exam fee?+

Part 1 costs KRW 55,000 and Part 2 costs KRW 77,000. You register and pay for Part 1 and Part 2 separately.

How long do I have to take Part 2?+

Part 1 passers may take Part 2 within 2 years of the results announcement date. Part 1 itself has no eligibility requirements.

Which subjects are covered?+

There are three subjects: Understanding Practical Linux, Linux System Administration, and Using Linux Networking and Services. The question distribution by subject is not published in the official notice.

Official Exam Guide Register for Exam

Week 1

  • Day 1Operating Systems and Linux: What the Kernel Does
  • Day 2Free Software and Distributions: The Ecosystem Built by Licenses
  • Day 3Installation and Booting: From the Moment You Power On
  • Day 4Filesystem Structure and File Types: Everything Is a File
  • Day 5Week 1 Comprehensive Review: Time to See Through the Concepts

Week 2

  • Day 1File and Directory Commands: Handling the Linux File System at Your Fingertips
  • Day 2Text Processing: Shaping Data with Pipelines, the Real Power of Unix
  • Day 3Mastering vi/vim: The Beauty of an Editor You Never Have to Take Your Hands Off
  • Day 4Compression, Archives, and Help: Bundling and Shrinking Files, and Learning on Your Own
  • Day 5Week 2 Comprehensive Review: Everything You Need to Survive on the Command Line

Week 3

  • Day 1What a Shell Really Is: The Command Interpreter and the World of Variables
  • Day 2The Art of Connecting and Bending Streams: Redirection, Pipes, Metacharacters
  • Day 3Taming the Shell: Aliases, History, and Job Control
  • Day 4Shell Scripts: The First Step in Weaving Commands into Code
  • Day 5Week 3 Comprehensive Review: The Big Picture of the Shell and Scripts

Week 4

  • Day 1The Four Account Files: Anatomy of the Fields in /etc/passwd · /etc/shadow · /etc/group · /etc/gshadow
  • Day 2Account Management Commands and Privilege Escalation: From useradd to sudo
  • Day 3The Arithmetic of Permissions: rwx · Octal chmod · Ownership · umask Calculation
  • Day 4Special Permissions and ACLs: SetUID · SetGID · Sticky bit · getfacl/setfacl
  • Day 5Week 4 Comprehensive Review: Tying the Account and Permission System into One Picture

Week 5

  • Day 1Filesystem Types and Structure: ext2/3/4 · xfs · btrfs · Journaling · Inodes and Blocks
  • Day 2Partitions and Mounting: fdisk · gdisk · parted · mkfs · mount/umount · the 6 Fields of /etc/fstab
  • Day 3LVM and Swap: PV·VG·LV Layers · From pvcreate to lvextend·resize2fs · mkswap·swapon
  • Day 4RAID, Quotas, and Disk Inspection: RAID 0/1/5/6/10 · mdadm · quota/edquota · fsck/df/du/lsblk/blkid
  • Day 5Week 5 Comprehensive Review: Filesystems · Partitions · LVM · Swap · RAID · Quotas Wrap-up and Practice

Week 6

  • Day 1Process Management: From PIDs to Signals and Priorities
  • Day 2Daemons and the Process Life Cycle: From fork and exec to Zombies and Orphans
  • Day 3System Initialization: From init and Runlevels to systemd and Targets
  • Day 4Job Scheduling: From cron's 5 Fields to at and batch
  • Day 5Week 6 Comprehensive Review: Tying Processes, Initialization, and Scheduling Together on One Page

Week 7

  • Day 1Package Management: RPM/YUM/DNF and DEB/APT, Both Families at a Glance
  • Day 2Source Compilation and Libraries: What tar→configure→make→make install Really Mean
  • Day 3The Kernel and Modules: Handling the Heart of the System and Its Pluggable Parts
  • Day 4Device Management and Printers: Handling Hardware with /dev and udev, Printing with CUPS
  • Day 5Week 7 Comprehensive Review: The Big Picture of Backup and System Administration
  • Day 6Virtualization Management: Using One Server Like Many with Hypervisors, KVM, and Containers

Week 8

  • Day 1Networking Basics: The OSI 7 Layers and IP Address / Subnet Calculation
  • Day 2Network Configuration: Setting Up Interfaces, Gateways, and DNS by Hand
  • Day 3Network Diagnostics: Commands That Narrow Down the Problem, from ping to tcpdump
  • Day 4Network Devices, Protocols, and Redundancy: Infrastructure Threaded Together by Layers
  • Day 5Week 8 Comprehensive Review: Threading Networking Together on a Single Layer Map

Week 9

  • Day 1DNS and BIND: The Internet's Phone Book That Turns Names into Addresses
  • Day 2DHCP and NTP: Two Services That Hand Out Addresses and Sync Clocks
  • Day 3Apache Web Server: Everything About httpd.conf and Virtual Hosts
  • Day 4Nginx and the Reverse Proxy: The Design of an Event-Driven Web Server
  • Day 5Week 9 Comprehensive Review: Names, Addresses, Time, and the Web on One Page
  • Day 6Database Services: From Installing MySQL/MariaDB to Backup and Recovery

Week 10

  • Day 1Mail Services: The MTA, MDA, MUA and SMTP, POP3, IMAP Triangle
  • Day 2File Transfer Services: FTP Active/Passive Modes and vsftpd
  • Day 3The Standard for Remote Access: SSH, sshd_config, Key Authentication, and Port Forwarding
  • Day 4Remote GUI: VNC and the Client-Server Reversal of the X Window System
  • Day 5Week 10 Comprehensive Review: Tying Network Services Together on One Port Sheet

Week 11

  • Day 1Samba: File and Printer Sharing Between Windows and Linux
  • Day 2NFS: The Standard File Sharing of the Unix World
  • Day 3Firewalls: iptables and firewalld
  • Day 4Access Control and Security: TCP Wrapper, SELinux, Log Management
  • Day 5Week 11 Comprehensive Review: The Big Picture of Sharing, Firewalls, and Security

Week 12

  • Day 1Frequently Tested Command Options: Core Commands for Short-Answer Practical Questions
  • Day 2Configuration File Paths and Key Directives: Precise Memorization for Fill-in-the-Blank Questions
  • Day 3Disk, LVM, and Permission Task Questions: Solving Scenarios in Command Order
  • Day 4Process, Scheduling, and systemd Task Questions: Cementing Operations Commands with Scenarios
  • Day 5System Task Mock Exam + Error Notebook: Cementing It with 12 Questions

Week 13

  • Day 1Network Configuration and Diagnostics Lab: Bring Up an IP by Hand and Open the Route
  • Day 2Service Config File Short Answers: One Directive Decides Pass or Fail
  • Day 3Shell Script Writing Tasks: Automate Real Work with Conditions, Loops, and Functions
  • Day 4Security, Firewall, and Log Tasks: Write the Rules and Fix the Context
  • Day 5Network and Service Lab Mock Exam + Wrong-Answer Notes

Week 14

  • Day 1Primary Subject 1 Mock Exam: Weak Points in Understanding Practical Linux
  • Day 2Primary Subject 2 Mock Exam: Weak Points in Linux System Administration
  • Day 3Primary Subject 3 Mock Exam: Weak Points in Using Networks and Services
  • Day 4Secondary Practical Exam Mock: Short-Answer and Hands-On Drills
  • Day 5Final Wrong-Answer and Flashcard Roundup and Exam-Day Strategy (Wrapping Up the 70 Days)