The CompTIA Linux+ certification is a vendor-neutral entry level standard for competency in Linux. Computing Technology Industry Association (CompTIA) developed the Linux+ certification. It is a vendor-neutral foundation-level certification. The exam consists of 94 questions and is 90 minutes long. It requires a passing score of at least 655 on a scale of 100 to 900. The target audience for CompTIA Linux+ is a technician with 6-12 months experience installing, operating and maintaining the Linux operating system.
The Linux Professional Institute is a
non-profit corporation dedicated to promoting and supporting Linux and open source software users,
vendors and developers.
Linux Professional Institute’s LPIC1 - Junior Level Administration is a
vendor neutral entry level
certification for IT professionals with Linux skills and knowledge.
The Linux Professional Institute’s LPIC2 - Intermediate
Level Administration is a vendor-neutral mid level certification for IT
professionals Linux skills and knowledge.
To achieve the LPIC2 certification, you
must first pass the LPIC1 certification. LPIC2 consists of two exams: 201 and
202. Each is form-based multiple choice and fill-in-the-blank, last 90
minutes and has around 55 questions. Each also is scored on a 200 to 800
range with a pass score of 460.
Red Hat is one of the most popular vendors of Linux and open source technology. Unlike CompTIA and LPI, Red Hat sponsors vendor certifications.
It offers two enterprise Linux server
system and network administration certs: the advanced-level certification for
Red Hat Certified Engineer (RHCE) and the mid-level Red Hat Certified
Red Hat Certified Technician certification is a mid level certification for IT
professionals. RCHTs focus on connecting new Linux systems to existing
The RHCT certification emerged in January 2003, four years after the release of the more advanced RHCE (Red Hat Certified Engineer) certification.
RHCE was the highest level of Linux certifications for a long time. “King of Linux Certs”. RHCEs are senior system administrators who typically handle such tasks as setting up corporate servers and networks, including Web servers.
This high level certification consists of a full-day long hands-on lab exam, RH302, and may be taken at the same locations as the RHCT.
Interestingly the RHCE covers the same material as the RHCT, in addition to more advanced material. It is therefore possible for a candidate to fail the RHCE yet pass the RHCT portion and become certified as an RHCT.
RHCSS validates security expertise in using Red Hat Enterprise Linux, SELinux, and Red Hat Directory Server in the enterprise environment. It is first Linux certification to focus on security. The RHCE (Red Hat Certified Engineer) is a required prerequisite.
To achieve the RHCSS certification, the exams following exams must be passed: EX333 Security: Network Services, EX423 Directory Services and Authentication and EX429 SELinux Policy Administration.
RHCA Red Hat's newest certification represents the highest level of Linux certifications. It is a senior level certification for those who have achieved the RHCE and still strive to achieve more by acquiring deeper and additional skills needed to deploy and manage Red Hat Enterprise Linux.
RHCA's target is "senior Linux system administrators responsible for the deployment and management of many systems in large enterprise environments,"
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