Deck 17: Expert Ms-Dos Programming Assessment

Question 1

All COM programs use the small memory model.

Answer 1

False

Question 2

The segment combine type tells the linker how to combine segments having the same name.

Answer 2

True

Question 3

The CLASS type in a segment definition makes it possible to combine two segments having different names.

Answer 3

True

Question 4

In large model programs,all code segments have the same name.

Question 5

The Speaker Demo Program uses the IN instruction to turn the speaker on.

Question 6

The following are all permissible segment ALIGN types: BYTE,WORD,DWORD,REAL4.

Question 7

When a key is pressed on the keyboard,the Intel 8259 programmable interrupt controller signals the CPU to suspend execution of the current program.

Question 8

An EXE program can have overlapping code,data,and stack segments.

Question 9

Memory-mapped video is set up so that when characters are placed in memory at predetermined addresses,the characters appear on the video display only when a special control value is output to a hardware port.

Question 10

The ASSUME directive permits the assembler to calculate the offsets of labels and variables.

Question 11

IA-32 systems offer two types of hardware input-output: memory-mapped,and port-based.

Question 12

Port-based I/O uses the IN and OUT instructions to read and write data to specific numbered locations.

Question 13

Only one code segment may be created in a single program module.

Question 14

The following is an example of a valid segment override:

Question 15

When an interrupt executes,an address in the Exception Process Table is used to locate the interrrupt handler.