1. Quiz 4

2. 1. Memory-mapped Files
Mapped files allow a program to access file data as if it were:
In memory
On disk
In the page file
On tape
a) In memory

3. 2. Page Faults
In Windows soft and hard page faults are distinguished. Which one of the following statements is true?
Soft page faults do not require access to secondary storage
Hard page faults will always be satisfied by reading from a page file
Soft page faults will never happen in SMP systems
Soft page faults will result in working set trimming for other processes
a) Soft page faults do not require access to secondary storage

4. 3. Windows System Calls
The primary Windows API function to read from a device is
ReadDevice()
ReadFile()
DeviceQuery()
DeviceReadData()
b) ReadFile()

5. 4. I/O System Structuring
HAL is an acronym for:
Hardware Analysis Level
Host Adapter Layer
Hardware Abstraction Layer
Highly Abstracted Logic
c) Hardware Abstraction Layer

6. 5. I/O Manager The Windows I/O manager operates in: Kernel mode
User mode
Both
a) Kernel mode

7. 6. I/O System Operation The Windows I/O system operates:
Always synchronously
Always asynchronously
Depending on the installed drivers
b) Always asynchronously

8. 7. Device Drivers
What kind of driver detects the presence of a hardware device in Windows?
Bus driver
Cab driver
Plug-and-Play driver
System driver
a) Bus driver

9. 8. Layered Drivers Windows filter drivers Do not talk to hardware
Can be installed dynamically
May generate additional IRPs
All of the above
d) All of the above

10. 9. Driver Verifier The driver verifier: Fixes buggy drivers
Catches driver errors
Prevents system crash after driver error
Analyzes driver source code for errors
b) Catches driver errors

11. 10. Power Management
Which of the following is not a system power state:
Standby
Hibernate On
Battery
d) Battery