Q.1

What is occurring when two or more sources of data attempt to use the same bus?

  • Bus contention
  • Direct memory access
  • Bus interruption
  • PPI
Q.2

During a read operation the CPU fetches ________.

  • a program instruction
  • another address
  • data itself
  • all of the above
Q.3

The Pentium can address ________.

  • 2 GB
  • 1 MB
  • 1 GB
  • 4 GB
Q.4

The first microprocessor had a(n)________.

  • 1-bit data bus
  • 2-bit data bus
  • 4-bit data bus
  • 8-bit data bus
Q.5

Which of the following is not a jump instruction?

  • JB (jump back)
  • JA (jump above)
  • JO (jump if overflow)
  • JMP (unconditional jump)
Q.6

Which of the following is not a basic element within the microprocessor?

  • Microcontroller
  • Arithmetic logic unit (ALU)
  • Register array
  • Control unit
Q.7

The first Intel microprocessor to contain on-board cache memory was the ________.

  • 80386
  • 80486
  • Pentium
  • Pentium Pro
Q.8

The original Pentium was the first CPU to feature separate data and instruction caches.

  • True
  • False
Q.9

A mnemonic is an English-like instruction that is converted by an assembler into a machine code for use by a processor.

  • True
  • False
Q.10

The ADD, CMP, and MUL instructions are all part of which type of instruction?

  • Data transfer
  • Arithmetic
  • Bit manipulation
  • Loops and jumps
Q.11

The AND, OR, and TEST instructions are all part of which type of instruction?

  • Data transfer
  • Arithmetic
  • Bit manipulation
  • Loops and jumps
Q.12

A port can be ________.

  • strictly for input
  • strictly for output
  • bidirectional
  • all of the above
Q.13

Which microprocessor has multiplexed data and address lines?

  • 8086/8088
  • 80286
  • 80386
  • Pentium
Q.14

Which of the following was not a design improvement for the 8086/8088 over the 8085?

  • Execution unit (EU)
  • 16-bit data bus
  • Arithmetic logic unit (ALU)
  • Bus interface unit (BIU)
Q.15

Which method bypasses the CPU for certain types of data transfer?

  • Software interrupts
  • Interrupt-driven I/O
  • Polled I/O
  • Direct memory access (DMA)
Q.16

Which of the following is not an 8086/8088 general-purpose register?

  • Code segment (CS)
  • Data segment (DS)
  • Stack segment (SS)
  • Address segment (AS)
Q.17

Which of the following is not a computer bus?

  • Data bus
  • Control bus
  • Timer bus
  • Address bus
Q.18

Machine language is independent of the type of microprocessor in a computer system.

  • True
  • False
Q.19

Chip designers are always trying to increase the clock speed.

  • True
  • False
Q.20

Instructions for the 80X86 family are downward compatible.

  • True
  • False
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