CC 102 - Array and Character Sequence

What does an array store?

• Values of different types

• Elements of the same type in contiguous memory

• Only character values

• Random data in non-contiguous memory

The first element of an array in C++ has an index of:

• 1

• -1

• 0

• Depends on the compiler

Which of the following correctly declares an array of 10 integers?

• array int[10];

• int num[10];

• int num = [10];

• int[10] num;

What happens if you access an index beyond the array’s size?

• Compiler error

• Nothing happens

• Runtime error may occur

• The compiler automatically resizes the array

In the declaration int foo[5] = {10, 20, 30};, what are the last two elements initialized to?

• 0

• 10

• Random garbage values

• Undefined

Which of the following is a correct way to initialize an array with five elements?

• int a[5] = {1, 2, 3, 4, 5};

• int a[] = {1, 2, 3, 4, 5};

• Both A and B

• None of the above

What type of error occurs when you exceed the valid range of indices?

• Compilation error

• Logical/runtime error

• Syntax error

• Linker error

Which statement about multidimensional arrays is TRUE?

• They store values of different types.

• They are arrays of arrays.

• They can’t be used in C++.

• Each dimension must have the same size.

What does the following syntax represent? array arr = {10, 20, 30};

• Built-in C array

• Standard Library array

• Dynamic array

• Invalid declaration

Which function of std::array safely accesses elements?

• .get()

• .at()

• .read()

• .value()