Memorize as many as can fit in your brain. Not the examples themselves, but the accounts involved, whether the balance of the account is normally a debit or credit, the proper timing for the entries (CRITICAL), and how the entries would affect the financial statements.
You will almost certainly get at least one Sim question that will require you to prepare journal entries. It may be for bonds or stock, government or not-for-profit, construction project entries, pensions, leases, consolidations, A/R and allowance for doubtful accounts/bad debt expense, or any of a million other scenarios.
And make no mistake about it: knowing journal entries will help you on the MCQs, well. You may occasionally be asked to provide an actual debit or credit and associated amount in a MCQ, but it's more likely that being familiar with different accounts, their normal balance type, and how changes in their balances affect the financials will help you determine the answer to a question. As I did MCQs in my Becker and NINJA test banks, I wrote down the journal entries to record the transactions described in the questions, and on exam day, I had no trouble whatsoever with anything involving journal entries. I think this is especially important for people who are either recently out of school or do not prepare journal entries as a normal part of their work.
.