This 1Z0-811 practice question tests your understanding of java basics and syntax. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A developer uses the following array initialization: int[] nums = new int[]{1, 2, 3}; Which of the following is true?
This is invalid syntax.
Why wrong: Syntax is valid for anonymous array creation.
The array is initialized with default values.
Why wrong: Explicit values are provided.
The array has length 3.
Three elements were provided.
The array can only store numbers up to 3.
Why wrong: No such restriction.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The array has length 3.
Option C is correct because the array initialization `int[] nums = new int[]{1, 2, 3};` explicitly creates an array of length 3, containing the elements 1, 2, and 3. The syntax is valid and the array is not initialized with default values; it is initialized with the specified literal values.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
This is invalid syntax.
Why it's wrong here
Syntax is valid for anonymous array creation.
The array is initialized with default values.
Why it's wrong here
Explicit values are provided.
The array has length 3.
Why this is correct
Three elements were provided.
Related concept
Read the scenario before looking for a memorised answer.
The array can only store numbers up to 3.
Why it's wrong here
No such restriction.
Common exam traps
Cisco often tests the distinction between array declaration with an initializer list (which must be in a single statement) and the anonymous array syntax shown here, leading candidates to mistakenly think the syntax is invalid or that the array has default values.
Detailed technical explanation
In Java, array initialization with `new int[]{...}` creates an array object on the heap, and the length is determined by the number of elements in the initializer list. This syntax is often used when you need to pass an array directly to a method without assigning it to a variable first. The array's type is `int[]`, and each element is a primitive int, so no autoboxing or object overhead occurs.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the 1Z0-811 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Java Basics and Syntax — This question tests Java Basics and Syntax — Read the scenario before looking for a memorised answer..
The correct answer is: The array has length 3. — Option C is correct because the array initialization `int[] nums = new int[]{1, 2, 3};` explicitly creates an array of length 3, containing the elements 1, 2, and 3. The syntax is valid and the array is not initialized with default values; it is initialized with the specified literal values.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
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