If a telephone system can be created with a signal-to-noise ratio of 40 dB and an analog bandwidth of 3000 Hz, how many bits per second could be transmitted?
First we should convert 40 dB to a real number, namely if 40 = 10 log 10 S/N ? S/N = 10,000
What will be an ideal response?
Using the Shannon’s capacity expression
C = B log 2 (1 + S/N) ? C = 3,000 log 2 (1+ 10,000) = to be determined by reader
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Which method call does the method head Sub ModifyArray(ByVal a As Double()) represent? Assume that the array being passed (list) is already defined.
a) ModifyArray( double() list ) b) ModifyArray( double() : list ) c) ModifyArray( double list() ) d) ModifyArray( list )
Analyze the following code:
``` public class Test { public static void main(String[] args) { A a = new A(); a.print(); } } class A { String s; A(String s) { this.s = s; } void print() { System.out.println(s); } }``` a. The program has a compile error because class A is not a public class. b. The program has a compile error because class A does not have a default constructor. c. The program compiles and runs fine and prints nothing. d. The program would compile and run if you change A a = new A() to A a = new A("5").
Can you use the random_shuffle generic algorithm with a list container? What about a vector container? Why or why not?
What will be an ideal response?
After installation, how many days do you have to activate Windows 7?
A. 7 B. 30 C. 45 D. 60