Answer:
modem is a contraction of the words modulator-demodulator. A modem is typically used to send digital data over a phone line. The sending modem modulates the data into a signal that is compatible with the phone line, and the receiving modem demodulates the signal back into digital data.
Explanation:
Write a public member function removeRandom that removes a random element from the ArrayBag. This method should also return a boolean indicating whether an element was actually removed
Answer:
Explanation:
The following code is written in Java. It is a function that takes in the ArrayList called ArrayBag as a parameter and randomly removes one of the elements in the ArrayList. As long as the ArrayBag has at least 1 element it will return true otherwise it will return false.
public static boolean removeRandom(ArrayList ArrayBag) {
Random rand = new Random();
if (ArrayBag.size() > 0) {
int randomNumber = rand.nextInt(ArrayBag.size());
ArrayBag.remove(randomNumber);
return true;
} else {
return false;
}
}
Write a C++ function, smallestIndex, that takes as parameters an int array and its size and returns the index of the first occurrence of the smallest element in the array. To test your function, write a main that prompts a user for a list of 15 integers and outputs the index and value of the first occurrence of the smallest value.
Answer:
Explanation:
The code in C++ is written as:
#include <iostream>
using namespace std;
int smallestIndex(int arr[],int size)
{
int min=arr[0],ind=0;
for(int i=0;i<size;i++)
{
if(min>arr[i])
{
min=arr[i];
ind=i; NOTE: ind serves as a variable that is holding the smallest
} element index of array
}
return ind;
}
int main() {
int arr[15];
cout<<"Enter 15 integers: ";
for(int i=0;i<15;i++)
cin>>arr[i];
for(int i=0;i<15;i++)
cout<<arr[i]<<" "<<endl;
int index=smallestIndex(arr,15);
cout<<"The position of the first occurrence of the smallest element in list is: "<<index<<endl;
cout<<"The smallest element in list is: "<<arr[index];
}
OUTPUT:
Enter 15 integers:
4
5
8
4
6
1
2
1
4
5
7
9
5
7
8
4 5 8 4 6 1 2 1 4 5 7 9 5 7 8
The position of the first occurrence for the smallest element in the list is 5
The smallest element in the list is: 1
You are reviewing the output of the show interfaces command for the Gi0/1 interface on a switch. You notice a significant number of CRC errors displayed. What are the most likely causes
Answer:
Collision or electromagnetic interference (EMI)
Explanation:
Some network cables connected to switch or router ports are prone to internal collision (between two frames or packets) and external collision with electromagnetic waves from other sources (EMI).
Electromagnetic waves are also known as radio waves or signals. When they are transmitted, the network cable acts as a receiver, the received signal interferes with the packet in the cable. This is why the cyclic redundancy check (CRC) throws an error.
Write a C++ program to define an abstract class in polymorphism?
Answer:
Following are the program to this question:
#include <iostream>//header file
using namespace std;//namespace
class Val //defining abstract class
{
public://use access specifier
virtual int squ()=0;//declaring a method squ
void setval(int x) //defining a method setval
{
a=x;//holding value in a variable
}
protected://use access specifier
int a;//defining integer variable
};
class square: public Val //defining a class square that inherit abstract class
{
public://use access specifier
int squ() //defining squ method
{
return (a*a); //return square value
}
};
int main() //main method
{
square s;//creating class object
s.setval(5);//calling setval method
cout << "The square value is: " << s.squ() << endl;//print value by calling squ method
}
Output:
The square value is: 25
Explanation:
In the above code a two-class "Val and square" is declared, in which val is abstract class, in a method squ is declared, and setval is used to set the value.
In the next step, the square class inherits Val and defines the squ method, and uses the return keyword to return its calculated value.
In the main method square class object is created and set the setval value and call the squ method and print its value.
