The following is a two-level page table for 20-bit addresses, with 12 bits of page offset and 8 bits of page number. The page number is further divided into a four-bit index into the primary table, and a four-bit index into the secondary table. Try a few lookups. The virtual address is given in hex. Click to find see the answer.

Address	Translation
DA4B2	A44B2. Follow entry D in T1 to T2, find A4 in entry A
9711B	Fault. Entry 9 in primary table is invalid.
EE329	4D329. Entry E to T4, then E again to find 4D
32411	Fault. Entry 2 in T3 is invalid.
3A2BC	2E2BC. Entry 3 in T1 to T3, then entry A holds 2E.
8231D	Fault. Entry 8 in main table is invalid.
E4129	8B129. Entry E in T1 to T4, then get 8B from entry 4.
D8371	Fault. From D in T1, find that 8 in T2 is invalid