Ruankao Network Engineer (Intermediate) study guide
Ruankao Network Engineer (Intermediate) · Work through your exam, one topic at a time.
The Ruankao Network Engineer (中级) is a Chinese professional qualification exam for IT practitioners who design, build, and operate data networks. Candidates typically include network administrators, integration engineers, and technicians preparing for roles with broader design responsibility. The Ruankao Network Engineer (Intermediate) study guide has 10 sections and about 4,577 words.
01Computer Network Fundamentals and Architecture
The fundamentals domain is the frame everything else hangs on. The exam tests whether you can place a function, a PDU, a device or a standard at the correct layer, and whether you can compute channel capacity and delay - not whether you can merely recite layer names.
447 words, about 2 min02Physical Layer and Data Communication
This domain covers what actually carries bits: media, line coding, modulation, multiplexing, error detection and the dumb devices that regenerate signals. Questions are typically one-line discriminators plus a Hamming or CRC calculation.
447 words, about 2 min03Data Link Layer and LAN Technologies
This domain tests Ethernet mechanics, switching behaviour, VLANs, spanning tree, wireless LANs and point-to-point link protocols. It is the most configuration-adjacent of the lower-layer domains.
503 words, about 3 min04Network Layer Protocols and Routing
Addressing and routing dominate this domain: subnetting arithmetic, protocol behaviour, and the operational differences between RIP, OSPF and BGP. Expect one or two multi-step subnetting questions.
446 words, about 2 min05Transport Layer and Application-Layer Protocols
Here the exam checks connection mechanics, port numbers, and the request/response behaviour of the core services. Port confusion is the most common single source of lost marks across the whole paper.
465 words, about 2 min06Network Interconnection and Device Configuration
This domain is operational: interface setup, routing configuration, ACLs, NAT, firewall policy and wireless controller integration. Questions appear as command snippets where you must spot the missing or wrong line.
462 words, about 2 min07Network Design and Engineering Practice
Design questions test whether you can turn requirements into a hierarchical topology, an addressing plan and a cabling specification that survives inspection. Numbers matter more than prose here.
445 words, about 2 min08Network Security and Management
This domain mixes cryptographic principles with operational security controls and monitoring. The exam likes questions where key usage is reversed, or where protocol encapsulation order is asked.
466 words, about 2 min09Network Operating Systems, Servers and Application Services
Server-side knowledge is tested through role configuration, permissions arithmetic and storage/availability design. Expect a permission-intersection question and a RAID capacity question.
429 words, about 2 min10Professional English, Standards and Regulations
The English section is a reading-comprehension task in technical register, and the standards/regulations portion asks you to attribute a number or obligation to the right body or law. Both reward precise recall over general fluency.
467 words, about 2 min