Local Host             |   Remote
                                                  |   Storage
                                                  |
                                                  |    +---------+
                                                  |   /         /|
                                                  |  +---------+ |
+-----------+ (1) Name +----------+               |  |         | |
|           | Lookup   |          | (3a) GET(q)   |  | Record  | |
|Application|----------| Resolver |---------------|->| Storage | |
|           |<---------|          |<--------------|--|         |/
+-----------+ (4)      +----------+ (3b) RRBLOCK  |  +---------+
              Records     A                       |
                          |                       |
     (2) Determination of |                       |
         Start Zone       |                       |
                          |                       |
                       +---------+                |
                      /   |     /|                |
                     +---------+ |                |
                     |         | |                |
                     |  Start  | |                |
                     |  Zones  | |                |
                     |         |/                 |
                     +---------+                  |