1. What are the factors of filters which are determined by the speed of the operation in a digital signal processor?
a) attenuation constant
b) frequency
c) bandwidth
d) phase
Explanation: The bandwidth of any filter depends on the speed of operations held in a digital signal processor.
2. How many tables does an FIR function of a digital signal processor possess?
a) 1
b) 2
c) 3
d) 4
Explanation: Digital signal processor function involves setting up of two tables and one is for sampled data and the other table is for filter coefficients which determine the filter response. It takes values from the table and performs programs.
3. Why is said that branch prediction is not applicable in a digital signal processor?
a) low bandwidth
b) high bandwidth
c) low frequency
d) high frequency
Explanation: Loop control timing varies depending on the branch predictions which in turn make bandwidth predictions difficult thereby lowering the bandwidth of the digital signal processor.
4. Which architecture can one overcome the low bandwidth issue in MC6800 family?
a) RISC
b) CISC
c) von Neumann
d) program stored
Explanation: RISC architecture can offer some improvement in the low bandwidth issue since it has the ability to perform operations in a single cycle.
5. Which architecture in digital signal processor reduces the execution time?
a) program storage
b) CISC
c) Harvard
d) von Neumann
Explanation: Harvard architecture in a digital signal processor allows continuous data fetching and performing the corresponding instructions.
6. Which of the following processors also can work as a digital signal processor?
a) 8086
b) 8088
c) 8080
d) ARM9E
Explanation: ARM9E can also have DSP level of performance without having a digital signal processor by its enhanced DSP instructions.
7. What types of modules are used in the digital signal processor to form the loop structure?
a) modulo-timer
b) modulo-counter
c) timer
d) external timer
Explanation: By using hardware multipliers, counters etc the entire hardware can be redesigned to perform some specific functions which are used in digital signal processors. One such is the modulo-counter to form the loop structure.
8. Name a processor which is used in digital audio appliances.
a) 8086
b) 80486
c) Motorola DSP56000
d) 8087
Explanation: Motorola DSP56000 is a powerful digital signal processor which is used in digital audio applications which have the capability of noise reduction and multi-band graphics whereas 8087 is a coprocessor and 80486 and 8086 are microprocessors.
9. How many bits does DSP56000 processor have?
a) 8
b) 16
c) 24
d) 32
Explanation: In order to increase the resolution, DSP56000 is a 24-bit data word processor.
10. How many buses did DSP56000 possess?
a) 2
b) 3
c) 4
d) 5
Explanation: It possess three separate external buses, one is for the program and the remaining two buses are for X and Y memories for data.