Is the Handbook of Technical Writing necessary to pass the Tech Writing DSST?

[chrliu2]

My dsst technical writing was roughly the following
10 questions approximatly on applied grammar. ( Fix this sentence , Revise this paragraph )
30 questions on data formatting ( What is the cleanest way to present the histogram or the data plot given and Why When do I use what visual aid )
20 questions on written formatting ( what is the purpose and standard format of common business documents such as memos, letters, faxes, reports, proposals etc)
15 applied formatting questions ( given the following topic and audience arrange this paragraph , topic heading , group these subheadings together etc )
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Yes that book is good but Strunk and White is a more concise and cheaper book