There are too many computer contents. Depending on your future development, select professional certification. The following may be authoritative international certifications, so the price is expensive. Before the test, it is easier to grade 4 English.
Microsoft microsft (mcse2003 Microsoft Certified System Engineer) (mcsa2003 Microsoft Certified System Administrator)
Cisco (ccna, ccnp, and CCIE)
ProgramSun-Java (of course, you can also take the national level certificate, but it is not very useful)
Oracle Database exams
The following are cheap national authorities:
The National soft exams only cost RMB 120, including: system Analyst, software designer, network engineer, e-commerce designer, database system engineer, Information System Project Manager, System Architect, software programmer, Network Administrator, e-commerce designer, Information System Supervisor, software evaluation division
Not all tests, but in which direction do you want to take
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