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CYBR 301 > Quiz 2 - Top - Level View of Computer Functions > Flashcards

Quiz 2 - Top - Level View of Computer Functions Flashcards

1
Q

T or F: A bus must only be one wire.

A

False

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2
Q

What are the Action Categories?

A

Data Processing
Processor-Memory
Control
Processor - I/O

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3
Q

What would the opcode 0001 indicate?

A

Load AC from Memory

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4
Q

What is a Bus?

A

A communication pathway connecting two or more devices

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5
Q

What does PCI stand for?

A

Peripheral Component Interconnect

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6
Q

What is the function of the register MAR?

A

Specifies the address in memory for the next read or write

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7
Q

What is the function of the register MBR?

A

Contains the data to be written into memory or receives the data read from memory.

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8
Q

What is the function of the register I/OAR?

A

Specifies a particular I/O device

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9
Q

What is the function of the register I/OBR?

A

Used for the exchange of data between an I/O module and the CPU.

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10
Q

What does QPI stand for?

A

Quick Path Interconnect

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11
Q

What is the width of a data bus?

A

The number of lines in a bus

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12
Q

What model do most modern computers use?

A

Von Neumann

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13
Q

What is Program Counter (PC)?

A

Address of instruction

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14
Q

What is Instruction Register (IR)?

A

Instruction being executed

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15
Q

What is Accumulator (AC)?

A

Temporary storage

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16
Q

What are the concepts included in the Von Neumann Architecture

A

Execution occurs in a sequential fashion (unless explicitly modified) form one instruction to the next.
Data and instructions are stored in a single read-write memory.
The contents of this memory are addressable by location, without regard to the type of data contained there.

17
Q

What functions does the QPI Link Layer perform

A

Flow Control
Error Control

18
Q

In the Integer format, what function does the MSB (Most Significant Bit) do?

A

Determines if positive or negative

19
Q

T or F: The opcode is always located at the end of the instruction.

A

False

20
Q

At the lowest level, what is Software?

A

A sequence of codes or instructions

21
Q

Which assembler will be used in class?

A

NASM

22
Q

What is the size in bits for the register AH?

A

8

23
Q

What is the size in bits for the register AX?

A

16

24
Q

What is the size in bits for the register Al?

A

8

25
Q

What is the size in bits for the register EAX?

A

[EAX]

26
Q

What is the size in bits for the register RAX?

A

[RAX]

27
Q

What is the size of the variable “Byte”?

A

8 bits

28
Q

What is the size of the variable “Word”?

A

2 bytes

29
Q

What is the size of the variable “Doubleword”?

A

2 words, 4 bytes

30
Q

What is the size of the variable “Quadword”?

A

4 words, 8 bytes

CYBR 301 (5 decks)

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