Angular - new questions and corrections

[mmm4m5m]

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For Q80, the current answer is (4). It looks like the correct answer should be (1) ?

Q80. Which Angular CLI command would you use to run your unit tests in a process that reruns your test suite on file changes?
1 ng test --single-run=false
[x] 4 ng test

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Q65 is duplicated by Q83. (With wrong asnwer!)

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Q53 is duplicated by Q63. (With wrong asnwer!)

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Q2 and Q77 - duplicates.

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