The bottom line is that passive scanning in systems can expose a lot of information about all aspects of the system in normal communications without intruding upon operations. Active scanning has the potential to discover more information, and when combined with passive scanning, it gives a more complete picture.
Brick sizes vary depending on the country, the manufacturer and the purpose for which they are intended. In the United States, standard modern bricks are usually about 8 Ã 4 Ã 2.25 inches (203 Ã 102 Ã 57 mm). modular bricks are 7 5/8 long x 3 5/8 thick x3 5/8 deep.
Standard Pavers. Standard brick pavers are rectangular blocks of clay, cement or natural stone. These pavers are used in a wide variety of projects. Eight inches in length, standard brick pavers are two and 1/4-inches high and 3 and 3/4 inches deep.They are most common for basketweave and straight-lay patterns but they can also be used in conjunction with other sizes of brick to create special patterns.he type of brick used depends on whether you are paving a walkway, a driveway, doing simple landscaping or laying down bricks to be used as part of a road. They can be made out of clay as well as natural stone, and there are a number of shapes and sizes to choose from, depending on the project.