15 Arrays questions from the Bash bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
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A.the exclamation-prefixed brace subscript form that expands to the set of indices or string keys present in a collection
B.the hash-prefixed brace form that reports how many elements a collection currently holds rather than its contents
C.the subscript-at form inside double quotes that yields every member as a distinct word, mirroring the safe all-arguments expansion
D.an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements
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2. Which term means: "an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements"?
Junior
A.Array expansion to elements
B.Indexed array
C.Array length expansion
D.Array key listing
Answer + AI explanation with Pro
3. Which statement is correct?
Junior
A.Indexed array — the subscript-at form inside double quotes that yields every member as a distinct word, mirroring the safe all-arguments expansion
B.Indexed array — the hash-prefixed brace form that reports how many elements a collection currently holds rather than its contents
C.Indexed array — an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements
D.Indexed array — the exclamation-prefixed brace subscript form that expands to the set of indices or string keys present in a collection
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4. What is Associative array?
Mid
A.the exclamation-prefixed brace subscript form that expands to the set of indices or string keys present in a collection
B.a key-value collection indexed by arbitrary strings, which must be declared explicitly with a capital-A declare flag
C.the subscript-at form inside double quotes that yields every member as a distinct word, mirroring the safe all-arguments expansion
D.an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements
Answer + AI explanation with Pro
5. Which term means: "a key-value collection indexed by arbitrary strings, which must be declared explicitly with a capital-A declare flag"?
Mid
A.Associative array
B.Array expansion to elements
C.Indexed array
D.Array length expansion
Answer + AI explanation with Pro
6. Which statement is correct?
Mid
A.Associative array — the subscript-at form inside double quotes that yields every member as a distinct word, mirroring the safe all-arguments expansion
B.Associative array — a key-value collection indexed by arbitrary strings, which must be declared explicitly with a capital-A declare flag
C.Associative array — the exclamation-prefixed brace subscript form that expands to the set of indices or string keys present in a collection
D.Associative array — an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements
Answer + AI explanation with Pro
7. What is Array expansion to elements?
Mid
A.the subscript-at form inside double quotes that yields every member as a distinct word, mirroring the safe all-arguments expansion
B.an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements
C.the hash-prefixed brace form that reports how many elements a collection currently holds rather than its contents
D.the exclamation-prefixed brace subscript form that expands to the set of indices or string keys present in a collection
Answer + AI explanation with Pro
8. Which term means: "the subscript-at form inside double quotes that yields every member as a distinct word, mirroring the safe all-arguments expansion"?
Mid
A.Array key listing
B.Array expansion to elements
C.Array length expansion
D.Indexed array
Answer + AI explanation with Pro
9. Which statement is correct?
Mid
A.Array expansion to elements — an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements
B.Array expansion to elements — a key-value collection indexed by arbitrary strings, which must be declared explicitly with a capital-A declare flag
C.Array expansion to elements — the subscript-at form inside double quotes that yields every member as a distinct word, mirroring the safe all-arguments expansion
D.Array expansion to elements — the hash-prefixed brace form that reports how many elements a collection currently holds rather than its contents
Answer + AI explanation with Pro
10. What is Array length expansion?
Senior
A.the hash-prefixed brace form that reports how many elements a collection currently holds rather than its contents
B.a key-value collection indexed by arbitrary strings, which must be declared explicitly with a capital-A declare flag
C.an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements
D.the exclamation-prefixed brace subscript form that expands to the set of indices or string keys present in a collection
Answer + AI explanation with Pro
11. Which term means: "the hash-prefixed brace form that reports how many elements a collection currently holds rather than its contents"?
Senior
A.Array key listing
B.Associative array
C.Array expansion to elements
D.Array length expansion
Answer + AI explanation with Pro
12. Which statement is correct?
Senior
A.Array length expansion — the hash-prefixed brace form that reports how many elements a collection currently holds rather than its contents
B.Array length expansion — an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements
C.Array length expansion — the exclamation-prefixed brace subscript form that expands to the set of indices or string keys present in a collection
D.Array length expansion — a key-value collection indexed by arbitrary strings, which must be declared explicitly with a capital-A declare flag
Answer + AI explanation with Pro
13. What is Array key listing?
Senior
A.the exclamation-prefixed brace subscript form that expands to the set of indices or string keys present in a collection
B.a key-value collection indexed by arbitrary strings, which must be declared explicitly with a capital-A declare flag
C.an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements
D.the hash-prefixed brace form that reports how many elements a collection currently holds rather than its contents
Answer + AI explanation with Pro
14. Which term means: "the exclamation-prefixed brace subscript form that expands to the set of indices or string keys present in a collection"?
Senior
A.Array key listing
B.Indexed array
C.Associative array
D.Array length expansion
Answer + AI explanation with Pro
15. Which statement is correct?
Senior
A.Array key listing — the hash-prefixed brace form that reports how many elements a collection currently holds rather than its contents
B.Array key listing — the exclamation-prefixed brace subscript form that expands to the set of indices or string keys present in a collection
C.Array key listing — an ordered collection addressed by integer subscripts starting at zero, declared with parenthesized space-separated elements
D.Array key listing — the subscript-at form inside double quotes that yields every member as a distinct word, mirroring the safe all-arguments expansion
Answer + AI explanation with Pro
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