The correct answers are summary ~ "Skillwise", summary ~ "\[Skillwise\]" and summary ~ "[Skillwise]".

The summary ~ "Skillwise" expression uses the text search operator ~ to find the token Skillwise anywhere in the summary field, so it returns issues whose summaries contain that word.

Both summary ~ "\[Skillwise\]" and summary ~ "[Skillwise]" will match a literal bracketed token. Quoting makes the square brackets literal in the search and the escaped form explicitly preserves the brackets when special character handling is required, so both forms will find summaries that include the exact [Skillwise] text.

summary is "Skillwise" is incorrect because the is operator is not used to match arbitrary text values in free text fields like summary, so it does not perform a contains search for that token.

summary ~ "Skillwise*" is incorrect because placing a wildcard inside quotes treats the asterisk as a literal character. To use a wildcard you would leave the value unquoted, for example summary ~ Skillwise*.

summary = "[Skillwise]" is incorrect because the equality operator is not supported for free text fields in JQL and it does not perform a text contains search for the summary field.

Full AWS Practitioner Certification Question