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Oracle 1Z0-819 Exam - Topic 5 Question 39 Discussion

Actual exam question for Oracle's 1Z0-819 exam
Question #: 39
Topic #: 5
[All 1Z0-819 Questions]

Which two var declarations are correct? (Choose two.)

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Suggested Answer: C

by Geoffrey at May 28, 2022, 08:08 PM

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Sherron
5 months ago
Surprised that you can use _ as a variable name!
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Delmy
5 months ago
B is also valid, right?
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Ettie
5 months ago
Wait, C is wrong because 'var' is a reserved keyword!
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Lawana
5 months ago
Totally agree, A and D!
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Dahlia
5 months ago
A and D are correct.
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Kattie
6 months ago
I have a feeling that C is wrong because `var` is a reserved keyword, so it can't be used as a variable name.
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Graham
6 months ago
I'm not entirely sure, but I feel like B is okay since variable names can start with an underscore.
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Precious
6 months ago
I remember that using `var` for arrays is valid, so I think A might be correct.
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Wynell
6 months ago
I practiced a similar question, and I think D is definitely correct because you can assign null to a variable.
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Renato
6 months ago
Option C looks promising - creating log exports in the production projects and setting the log sinks to a Cloud Storage bucket in an operations project. That way, we can ensure all the production logs are captured without any other project logs getting mixed in.
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Luz
6 months ago
I'm confident the answer is Residual. The Control Failure Factor is about the impact of control failures, which would affect the remaining risk after controls are in place.
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Crista
11 months ago
I heard the person who wrote this question was a 'var'y bad programmer. Get it? 'Var'y bad? Okay, I'll see myself out.
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Penney
9 months ago
I guess the correct answers are A) and D).
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Honey
9 months ago
Haha, good one! That joke was 'var'y clever.
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Rebbeca
9 months ago
D) var y = null;
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Stephen
10 months ago
A) var names = new ArrayList();
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Maryann
11 months ago
Hmm, this is a tricky one. I'm going to go with B and D, but I'm also tempted to choose E just to see what happens. Yolo, am I right?
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Berry
11 months ago
C is clearly wrong. You can't use 'var' as a variable name, that's just silly. I'd say B and D are the right choices.
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Stefan
9 months ago
Yeah, B and D seem to be the right var declarations.
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Iola
10 months ago
I think B and D are the correct choices as well.
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Stephanie
10 months ago
Yes, I also believe B and D are the correct options. 'var _ = 100;' and 'var y = null;' make sense.
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Dominque
10 months ago
I agree, C is definitely wrong. 'var' can't be used as a variable name.
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Ivan
11 months ago
I think B and D are the correct choices. They seem to be valid var declarations.
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Goldie
11 months ago
I agree, C is definitely wrong. Using 'var' as a variable name is not allowed.
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Blondell
11 months ago
I'm going with B and E. Using 'var' to declare a variable without an initial value is also valid.
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Fletcher
9 months ago
Yes, B and E are the correct var declarations.
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Goldie
9 months ago
I would go with B and E as well.
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Tu
9 months ago
I agree, using 'var' without an initial value is valid.
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Bettyann
9 months ago
I think B and E are correct.
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Laurena
10 months ago
Actually, D is incorrect because 'null' is not a valid initial value for a variable declaration.
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Gilma
10 months ago
I would choose B and D.
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Amie
10 months ago
I agree, using 'var' without an initial value is valid.
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Adell
10 months ago
I agree, B and E are the correct var declarations. It's valid to declare a variable without an initial value.
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Lorita
11 months ago
I think B and E are correct.
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Ezekiel
11 months ago
I think B and E are correct too. 'var' can be used without an initial value.
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Queenie
11 months ago
I think B and D are the correct options here. Declaring a variable with 'var' and initializing it with a value or null is valid in JavaScript.
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Lynelle
12 months ago
Yeah, those two options seem to be the only correct ones based on the rules for declaring variables in JavaScript.
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Laurel
12 months ago
I agree with you, Lynelle. I also think D) var y = null; is correct because it's declaring a variable with a null value.
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Lynelle
12 months ago
I think B) var _ = 100; is correct because it's assigning a value to a variable.
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