6 killed in joint US-Iraqi raid on suspected militia hideouts in eastern Baghdad

The video tutorial provides an overview of door lock mechanisms, followed by Tony's explanation of the concept.

What is the primary purpose of a door lock?

• To provide security and restrict access

• To increase the value of a property

• To enhance the aesthetic of a door

• To make doors heavier

Which of the following is a feature of the specific door lock discussed?

• It is made of plastic

• It has a digital keypad

• It is only available in one color

• It is designed for sliding doors