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Exam CRT-450 topic 1 question 80 discussion

Actual exam question from Salesforce's CRT-450
Question #: 80
Topic #: 1
[All CRT-450 Questions]

Which two statements are acceptable for a developer to use inside procedural loops? (Choose two.)

  • A. delete contactList;
  • B. contactList.remove(i);
  • C. Contact con = new Contact();
  • D. Account a = [SELECT Id, Name FROM Account WHERE Id = :con.AccountId LIMIT 1];
Show Suggested Answer Hide Answer
Suggested Answer: BC 🗳️
by de2rick at May 21, 2023, 6:37 a.m.

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BeatrizBernardo
Highly Voted 1 year, 5 months ago
Selected Answer: BC
better explain why not D is a right answer, can it the governor limits https://trailhead.salesforce.com/trailblazer-community/feed/0D54S00000A8GHjSAN
upvoted 5 times
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ABHI0O07
Most Recent 8 months ago
do not ever use dml statements or querying records inside loops.so b and c are correct
upvoted 1 times
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edogaldo
1 year, 2 months ago
also this might be interesting: https://salesforce.stackexchange.com/questions/76912/can-i-remove-element-from-a-list-being-looped-through
upvoted 1 times
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de2rick
1 year, 6 months ago
Selected Answer: CD
B is not correct, normally there will be a compile error ERROR: Cannot modify a collection while it is being iterated. (FOR i loop could compile but out of index error eventually) D is correct even though the SOQL query in a loop is not the best practice but it can be complied properly
upvoted 1 times
sfarchex137
1 year, 2 months ago
Regardless of limit, the loop exceeds governor limits if it executes a large number of times. BC is the right answer
upvoted 2 times
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edogaldo
1 year, 2 months ago
"D is correct even though the SOQL query in a loop is not the best practice but it can be complied properly": it would be the same also for A then...
upvoted 2 times
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A (35%)
C (25%)
B (20%)
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