What is the name of the lowest 8 bits of the EDX register? a. DL b. DH c. DX d.

Question

What is the name of the lowest 8 bits of the EDX register? a. DL b. DH c. DX d. none of the above How much memory can be addressed in Real-address mode? a. 640 K b. 1 MB c. 16 MB d. 4 GB How much memory can be addressed in Protected mode? a. 640 K b. 1 MB c. 16 MB d. 4 GB Which of the following linear addresses matches the segment-offset address 08F0:0200? a. 09100 h b. 09200 h c. 0AF0 h d. 08F2 h High-speed memory that reduces the frequency of access by the CPU to conventional memory is called a. local memory b. cache memory c. system memory d. virtual memory Why are device drivers needed, given that BIOS programs can do the same task? a. device drivers allow for the introduction of new devices b. device drivers have faster performance than BIOS programs c. BIOS programs are only used by the operating system in Real-address mode d. device drivers have more direct access to hardware than BIOS programs.

Explanation / Answer

The name of the lowest 8 bits of EDX register is a)DL

The memory that can be address in Real-address mode is 4 GB

High-speed memory that reduces the frequency of access by the CPU to conventional memory is called b)cache memory

The linear address which matches the segment-offset address 08F0-0200 is 08f2h

Device drivers needed,given that BIOS program can do the same task because d.Device drivers have more direct access to hardwware than BIOS programs

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