Chapter 7, Problem 7.11HW

This program header in Figure 7.14 indicates that the data segment occupies 0x230 bytes in memory. However only the first 0x228 bytes of these come from the sections of the executable file. What causes this discrepancy?

Figure 7.14 Program header table for the example executable prog. off: offset in Object file; vaddr/paddr: memory address; align: alignment requirement; filesz: segment size in object file; mersz: segment size in memory; flags: run-time permissions.