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This article mainly explains "what is the linux certification". Interested friends may wish to take a look at it. The method introduced in this paper is simple, fast and practical. Next let the editor to take you to learn "what is linux certification?"

Linux certification includes: 1, red hat certification, including RHCSA certification (red hat certified technician), RHCE certification (red hat certified engineer) and RHCA certification (red hat certified architect); 2, red flag Linux certification; 3, LPI certification; 4, SairLinux and GNU certification; 5, Linux+ certification.

The operating environment of this tutorial: linux5.9.8 system, Dell G3 computer.

Linux certification refers to the qualification obtained through the examination after obtaining professional Linux training. Internationally recognized Linux certification includes LinuxProfessionalInstitute (referred to as LPI for short), SairLinux and GNU, Linux+ and RedHatCertifiedEngineer.

Linux certification includes:

Red Hat certification

First of all, of course, it is Red Hat certification. When it comes to Linux certification, red hat certification is the first thing that comes to mind. Red hat certification, as one of the highest gold content certification in Linux field, is widely recognized by the industry. Red Hat Certification, as a Linux certification launched by Red Hat Linux, mainly examines the examinee's practical ability in the actual operating system, which is characterized by paying attention to the cultivation of practical combat ability. Red Hat certification is divided into three levels from low to high, namely Red Hat Certified technician (RHCSA), Red Hat Certified engineer (RHCE) and Red Hat Certified architect (RHCA).

RHCSA certification

With the release of Red Hat Enterprise version 6 (hereinafter referred to as RHEL6) on November 10, 2010, Red Hat English official website also updated its RHCE training strategy on the same day, launching the latest entry-level certification-Red Hat Certified system Administrator (RHCSA) to replace the traditional RHCT (Red Hat Certified technician). In view of the emergence of new technologies such as cloud computing, cloud storage and virtualization, Red Hat has redesigned the whole course of RHCE. RHCSA will be trained and tested as a separate course. Candidates must pass the RHCSA before they can pass the RHCE.

RHCE certification

RHCE is the abbreviation of Red Hat Certified Engineer-Red Hat Certified engineer started in March 1999. RHCE is the first certification test for Linux in the world, it is not an ordinary certification test, compared with other operating system certification tests, it has no written test, all on-site operation, so RHCE has become one of the most difficult certification tests recognized by the industry.

RHCA certification

RHCA (RedHat Certified Architect) is not only the top certification launched by RedHat in 2004, but also the highest certification of operating system recognized by the Linux industry. Obtaining RHCA certification proves that you have an extremely deep understanding of Linux systems and the ability to build large enterprise services with Linux. As of July 2010, there are RHCA33 people in China and RHCA337 people in the world.

Red Flag Linux certification

If your goal is to make a difference in the domestic Linux world, then Red Flag Linux certification is also a good choice. As the earliest Linux operating system in China, Red Flag Linux has sold more than 1000000 copies a year, making it the largest Linux in the Chinese market, with a wide user base and many training institutions. Red Flag Linux certification is mainly divided into Red Flag Linux Certified Product expert (RAP) and Red Flag Linux Certified engineer (RCE).

LPI certification

There is LPI certification, LPI certification is all over the world and is widely used by countries in the neutral certification, it is characterized by high global popularity, but also has shortcomings, that is, the current domestic examination is more inconvenient.

There are three levels of certification, including:

Entry-level certification LPIC-1

Advanced level Certification LPIC-2

The highest level of certification LPIC-3

The first two certifications focus on Linux systems management, while the last one focuses on expertise, including virtualization and security.

SairLinux and GNU certification

Like LPI, Sair offers three levels of certification programs

Level 1--Sair Linux & GNU Certified Administrator (LCA)

Level 2-Sair Linux & GNU Certified Engineer (LCE)

Level 3-Master Sair Linux & GNU Certified Engineer (MLCE)

Level 1 is a fully developed Sair certification project, just like LPI.

Linux+ certification

The Linux+ certification program sponsored by CompTIA is the latest to enter the Linux certification market. The program was officially launched on September 21, 2001, and has aroused widespread concern among Linux practitioners and the industry. Almost all major certified publishers have written exam reference books for Linux+ certification, and many IT training centers are preparing Linux+ certification programs.

Like other "+" certifications launched by CompTIA, the Linux+ qualification certificate can be obtained by passing only one exam (held by VUE and Prometric testing centres). Once you have obtained the Linux+ qualification certificate, the certificate will be valid for life. The Linux+ exam, which costs $190, is a 120-minute multiple-choice exam that covers much of the same content as Sair and LPI certification, but slightly less difficult.

The LPI and Sair certification programs are aimed at experienced Linux network and system administrators, while Linux+ certification is aimed at individuals who have only about half a year's Linux experience and want to obtain basic Linux technical qualifications.

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