Answer
$010010101011$
Work Step by Step
The provided hexadecimal number is
$4AB$
The binary representation of the hexadecimal digit $4$ is $100$ or $0100$ and the binary representation of the hexadecimal digit $A$ is $1010$ and the binary representation of the hexadecimal digit $B$ is $1011$.
On grouping, the number so obtained is,
$010010101011$
