Which of the following techniques is used for suppression in fire patterns?

The frontal attack technique is primarily used for suppression in fire patterns because it allows firefighters to combat the fire directly at its leading edge. This approach is effective in controlling and minimizing the spread of fire by applying water or fire retardants where the flames are most intense. By advancing directly toward the fire, crews can create a barrier to prevent the fire from moving further.

Using a frontal technique provides the advantage of a clear line of attack and can be instrumental in quickly reducing the heat and intensity of the fire. It also facilitates an effective strategy in managing the fire’s direction and behavior, thus protecting surrounding structures and vegetation.

Other options may involve tactics that support fire suppression but are either more about observation (like surveillance), indirect engagement (like flanking), or stealth approaches that do not directly confront the flames. The frontal technique stands out due to its direct engagement and immediate impact on suppressing the fire.