Final answer:
The masonry technique used in Egyptian buildings like Zoser's mortuary complex is ashlar masonry, characterized by cut stones laid in even courses, creating tight interlocks without much use of mortar.
Step-by-step explanation:
The masonry technique used in Egyptian buildings like Zoser's mortuary complex is known as ashlar masonry. This building technique involves cut and dressed stone that is set in place to form very precise and regular shapes, usually laid in even, horizontal courses. Unlike the massive, irregular blocks associated with Cyclopean masonry, ashlar masonry is characterized by a more refined and systematic approach.
The stones are typically well-fitted together with minimal or no use of mortar, creating a tightly interlocked structure. The use of ashlar masonry in Zoser's complex signifies a departure from previous building methods which relied heavily on mud-brick and an evolution towards more permanent stone construction. This more refined masonry technique was ideal for the construction of monumental structures that not only served as tombs but also as ceremonial centers to exhibit the power and eternity of the pharaohs.