Get Unlimited Contributor Access to the all ExamTopics Exams!
Take advantage of PDF Files for 1000+ Exams along with community discussions and pass IT Certification Exams Easily.
Suggested Answer:B🗳️
Withdraw funds rather than push funds to them automatically Favor pull over push for external calls as we've seen, external calls can fail for a number of reasons, including external errors. To minimize the damage caused by such failures, it is often better to isolate each external call into its own transaction that can be initiated by the recipient of the call. This is especially relevant for payments, where it is better to let users withdraw funds rather than push funds to them automatically. (This also reduces the chance of problems with the gas limit.) Reference: https://github.com/ethereum/wiki/wiki/Safety#favor-pull-over-push-for-external-calls
As far as I can see, B and C are the same. Pull should be the same as withdraw? Indeed pull is a more generic term, as the principle applies to more than just currency.
Indeed, the title of the paragraph in the reference is "Favor pull over push for external calls"
upvoted 2 times
...
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
Krisc
4 years, 2 months ago