Salesforce DEX-450 Exam - Topic 4 Question 36 Discussion

Actual exam question for Salesforce's DEX-450 exam

Question #: 36
Topic #: 4

[All DEX-450 Questions]

Given:

Map<ID, Account> accountMap = new Map>ID, Account> ([SELECT Id, Name FROM Account]);

What are three valid Apex loop structures for iterating through items in the collection? (Choose three.)

Afor (ID accountID : accountMap.keySet()) {...}

Bfor (Account accountRecord : accountMap.values()) {...}

Cfor (Integer i=0; I < accountMap.size(); i++) {...}

Dfor (ID accountID : accountMap) {...}

Efor (Account accountRecord : accountMap.keySet()) {...}

Show Suggested Answer

Suggested Answer: A, B, C

by Alease at May 03, 2022, 12:40 PM

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Roselle

4 months ago

Wait, are we sure about B? Can you really loop through values like that?

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Lasandra

4 months ago

E looks wrong too, keySet() gives IDs, not Account records.

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Toi

4 months ago

D seems off, you can't iterate a Map directly like that.

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Dorsey

4 months ago

C is not valid, you can't use an index with a Map.

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Jutta

4 months ago

A and B are definitely valid!

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Elly

5 months ago

I practiced a similar question, and I believe option B should work because it lets us loop through the values directly.

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Hui

5 months ago

I'm a bit unsure about option C; I remember we can't use a traditional for loop like that with a Map, right?

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Sage

5 months ago

I think option A is definitely valid since we're iterating over the keys of the map.

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Aimee

5 months ago

I feel like option D is incorrect, but I'm not completely sure why. Can we iterate over a map like that?

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Kiley

5 months ago

The AP failover priority seems like the most straightforward answer. I'll go with that unless I spot something else that seems more likely.

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Venita

5 months ago

Hmm, this looks like a tricky one. I'll need to think through the possible causes carefully.

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