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Deep-dives written by practitioners who passed the exams
E20-002 was an exam in EMC's Information Storage Associate family. Why the vendor-neutral ISM curriculum aged unusually well, and what happened to the programme after Dell acquired EMC in 2016.
A00-211 was SAS Base Programming for SAS 9, superseded by the performance-based A00-231 where candidates write and run actual code. What the DATA step model taught, and where SAS sits now.
201-01 was an exam in Riverbed's professional-tier RCSP family. Riverbed's original certification pages are gone, so this page states what is verifiable about the programme and declines to invent the rest.
1D0-635 was CIW's JavaScript Specialist exam, superseded by 1D0-735 JavaScript Specialist v3. Why the version gap matters more for JavaScript than most, given how much ES6 changed the language.
Unlike most codes in this series, 1D0-61A is not retired. Per CIW's own site it is 30 questions, 30 minutes, 66.66 percent to pass, valid three years. What it covers and who it is actually for.
199-01 was the RCSP-W exam covering Riverbed SteelHead WAN optimization. The real story is the category: cheap bandwidth, SD-WAN and cloud applications absorbed the problem it solved.
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