GO - Is array copy a deep copy or shallow copy?

Question

For the below array,

var a[2][3]int
a[0][0] = 55
a[0][1] = 56
a[0][2] = 57
a[1][0] = 65
a[1][1] = 66
a[1][2] = 67

on performing array copy,

a[0] = a[1]

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Question:

Is the array(a[0]) copy a deep copy or shallow copy?

After copy, Does a[0] have separate values(3 int's) than a[1] values(3 int's)?

Answer 1

Waitting for answers