In the competitive landscape of the IT workplace, the technical and certification systems of the three giants—Huawei, Cisco, and Red Hat—have long been core tools for professionals to enhance their competitiveness. Although each of the three focuses on different fields, they collectively form the key pillars supporting enterprise IT architectures, and their value is directly reflected in core dimensions such as crossing career thresholds and improving job competitiveness. For workplace professionals, delving into the technical capabilities of any one system or obtaining authoritative certifications can open up broader career prospects.

As the two leaders in the networking field, Huawei and Cisco have certification systems that serve as "career passports" for network engineers. Cisco's CCIE certification is renowned for its high global recognition. With its rigorous assessment of complex network design, implementation, and troubleshooting, it has become a "standard requirement" for the core network departments of multinational enterprises and operators. Holders of this certification also have significant advantages in the job markets of Hong Kong, Macao, Taiwan, and Southeast Asia. Huawei's HCIE certification, on the other hand, closely aligns with domestic market demands and has a very high penetration rate among government agencies, state-owned enterprises, and Huawei ecosystem partners. Many fresh graduates can secure high-paying offers with this certification, and its recognition continues to rise amid the wave of domestic substitution. The two certifications respectively provide workplace professionals with dual options of international perspective and local in-depth development, serving as key endorsements for promoting to senior positions in the networking field.

Red Hat certifications, meanwhile, have established a competency ladder in the fields of Linux operation and maintenance (O&M) and cloud native technologies, serving as a "proof of hard power" for professionals in O&M and DevOps. From RHCE to RHCA, Red Hat certifications are known for their full practical assessments, rejecting rote memorization and accurately testing professionals' practical skills in core areas such as system management, automated O&M, and container management. As enterprises accelerate their digital transformation, Linux systems, as the cornerstone of servers, have become increasingly stable. Professionals with Red Hat certifications are in short supply for positions such as enterprise server management and cloud platform O&M, and such certifications have even become one of the core recruitment criteria for DevOps engineers and cloud architects.