Question

What is the object’s access mask in Windows?

a.

A 64-bit integer that is divided into two 32-bit access flag words

b.

A 32-bit integer that is divided into two 16-bit access flag words

c.

A 16-bit integer that is divided into two 8-bit access flag words

d.

None of the above

Posted under Reverse Engineering

Answer: (b).A 32-bit integer that is divided into two 16-bit access flag words Explanation:The object’s access mask is a 32-bit integer that is divided into two 16-bit access flag words. The upper word contains generic access flags such as GENERIC_READ and GENERIC_WRITE. The lower word contains object-specific flags such as PROCESS_TERMINATE, which allows you to terminate a process using its handle, or KEY_ENUMERATE_SUB_KEYS, which allows you to enumerate the subkeys of an open registry key.

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