Cnit 176 Final Exam

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Final Exam – CNIT 17600 – Summer 2011
Name: _______________________________
Multiple Choice (1 point each)
1. Which of the following is the technological advancement(s) that allowed the 4th generation of computing to begin?
a. Vacuum Tubes & Alternating Current Power Systems
b. Transistors & Alternating Current Power Systems
c. Transistors & Direct Current Power Systems
d. Integrated Circuits & VLSI
e. None of the Above
2. In the model of modern computing systems, applications that end uses directly interact with are located at which level?
a. Level 0 – Digital Logic
b. Level 1 – Control
c. Level 3 – System Software
d. Level 5 – High-Level Language
e. Level 6 – User
3. In the model of modern computing systems, the physical circuits and gates that actually perform the basic operations the computer are located at which level? a. Level 0 – Digital Logic
b. Level 1 – Control
c. Level 3 – System Software
d. Level 5 – High-Level Language
e. Level 6 – User
4. Which of the following components of the central processing unit is responsible for retrieving instructions and then translating those instructions into executable operation codes and operands?

a. Arithmetic Logic Unit
b. Control Unit
c. Registers
d. Program Counter
e. None of the Above
5. Which of the following is currently the most popular format for representing signed numbers in computing systems?
a. Signed Magnitude
b. One’s Complement
c. Two’s Complement
d. Nine’s Complement
e. None of the Above

6. The unsigned 8-bit binary value of 10410 is:
a. 1101000
b. 01101000
c. 11010000
d. 10010111
e. None of the above
7. The signed magnitude 8-bit binary value of 10410 is:
a. 1101000
b. 01101000
c. 11010000
d. 10010111
e. None of the above
8. What is the value of the two’s complement binary number 10011001? a. 153
b. -153
c. -102
d. 103
e. None of the Above
9. Which of the following character codes is the international standard for representing data? a. EBCDIC
b. ASCII
c. BCD
d. Unicode
e. All of the Above

Inputs
x
y
00
01
10
11

Output
f()
0
0
0
1

Figure 1 - Boolean Logic Truth Table

10. Which of the following Boolean operators defines the truth table described in Figure 1? a. OR
b. AND
c. NAND
d. XNOR
e. XOR

Inputs
x
y
00
01
10
11

Output
f()
0
1
1
0

Figure 2 - Boolean Logic Truth Table

11. Which of the following Boolean operators defines the truth table described in Figure 2? a. OR
b. AND
c. NAND
d. XNOR
e. XOR

Inputs
x
y
00
01
10
11

Output
f()
1
1
1
0

Figure 3 - Boolean Logic Truth Table

12. Which of the following Boolean operators defines the truth table described in Figure 3? a. OR
b. AND
c. NAND
d. XNOR
e. XOR

x

A

y

B
C
D
Figure 4 - Digital Decoder Circuit

13. Using Figure 4, which output will be set to a logical 1 when the inputs are x=1 and y=1. a. A
b. B
c. C
d. D
e. All of the Above
14. Which of the following is a CPU Instruction Type?
a. Data Movement
b. Arithmetic Operation
c. I/O Instruction
d. Boolean Logic Instruction
e. All of the Above

15. Which of the following is an enhancement to the von Neumann architecture to increase the apparent speed of a CPU?
a. Resource Conflicts
b. Structure Hazards
c. Data Dependencies
d. Pipelining
e. None of the Above
16. Which of the following CPU components is responsible for altering the normal flow of process execution?
a. Accumulator
b. General Purpose Registers
c. ALU
d. Control Unit
e. None of the Above
17. Which of the following describes the process by which the least significant bits of the address determine which memory bank the data will be stored?
a. Low-Order Interleaving
b. High-Order Interleaving
c. Byte Interleaving
d. Word Interleaving
e. Nibble Interleaving
18. Which of the following is typically implemented using capacitors for storage of bits? a. RAM
b. DRAM
c. SRAM
d. ROM
e. All of the above
19. Which of the following is...
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