Social engineering; is the process of manipulating people to perform some action that will lead unauthorized users to break into a computer or network. This process is usually non-technical and relies heavily on human interaction and often involves tricking people to divulge confidential information e.g. passwords.
Dominic M answered the question on May 16, 2018 at 08:13
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Date posted: May 16, 2018. Answers (1)
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Date posted: May 16, 2018. Answers (1)
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Date posted: May 16, 2018. Answers (1)
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(Solved)
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Date posted: May 13, 2018. Answers (1)
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In DES, the encryption and decryption algorithms are the same. Is that also the case in AES?
Date posted: May 13, 2018. Answers (1)
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Date posted: May 13, 2018. Answers (1)
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Date posted: May 13, 2018. Answers (1)
- Given this class fragment,
class samp {
double *p;
public:
samp (do d) {
p = (double *) malloc(sizeof(double));
if (!p) exit (1); //allocation error
*p = d;
}
~samp() {free(p) ;}
//...
}; ...(Solved)
Given this class fragment,
class samp {
double *p;
public:
samp (do d) {
p = (double *) malloc(sizeof(double));
if (!p) exit (1); //allocation error
*p = d;
}
~samp() {free(p) ;}
//...
};
//...
samp ob1(1, ob2(0.0);
//...
ob2 = ob1;
what problem is caused by the assignment of ob1 to ob2?
Date posted: May 12, 2018. Answers (1)
- To illustrate exactly when an object is constructed and destructed when returned from a function, create a C++ class called who. Have who's constructor take...(Solved)
To illustrate exactly when an object is constructed and destructed when returned from a function, create a C++ class called who. Have who's constructor take one character argument that will be used to identify an object.Have the constructor display a message similar to this when constructing an object:
Constructing who #X
where x is the identifying character associated with each object when an object is destroyed, have a message similar to this displayed:
Destroying who #x
where, again, x is the identifying character. Finally, create a function called make_who() that returns a who object. Give each object a unique name.Note the output displayed by the program.
Date posted: May 12, 2018. Answers (1)
- other than the incorrect freeing of dynamically allocated memory, think of a situation in which it would be improper to return an object from a...(Solved)
other than the incorrect freeing of dynamically allocated memory, think of a situation in which it would be improper to return an object from a function.
Date posted: May 12, 2018. Answers (1)
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As you know, when an object is passed to a function, a copy of that object is made.Further, when that function returns, the copy's destructor function is called.Keeping this in mind, what is wrong with the following program?
// This program contains an error.
#include
#include
using namespace std;
class dyna {
int *p;
public:
dyna(int i);
~dyna() { free(p); cout << "freeing \n"; }
int get() { return *p; }
};
dyna::dy*) malloc(sizeof(int));
if(!p) {
cout << "Allocation failure\";
exit(1);
}
*p = i;
}
// Return negative value of *ob.p
int neg(dyna ob)
{
retur.get();
}
int main()
{
dyna 0(-10);
cout << o.get() << "\n";
cout << neg(o) << "\n";
dyna o2(20);
cout << o2.get () << "\n";
cout << neg (o2)\n";
cout << o.get () << "\n";
cout << neg (o) << "\n";
return 0;
}
Date posted: May 12, 2018. Answers (1)
- If a queue dynamically allocates memory to hold the queue, explain the reason for that occurence and state whether in such a situation it...(Solved)
If a queue dynamically allocates memory to hold the queue, explain the reason for that occurence and state whether in such a situation it is possible to block one queue from being assigned to another.
Date posted: May 12, 2018. Answers (1)
- What is wrong with the following fragment?
//This program has an error.
#include
using namespace std;
class c11 {
int i, j;
public:
c11 (it a, int b) { i =...(Solved)
What is wrong with the following fragment?
//This program has an error.
#include
using namespace std;
class c11 {
int i, j;
public:
c11 (it a, int b) { i = a; j = b; }
// ...
};
class c12 {
int i; j;
public:
c12 (int a, int b) { i = a; j = b; }
// ...
};
int main()
{
c11 x(1c12 y(0, 0);
x = y;
// ...
}
Date posted: May 12, 2018. Answers (1)
- Given the following class, show how an object called ob that passes the value 100 to a and X to c would be declared
class sample...(Solved)
Given the following class, show how an object called ob that passes the value 100 to a and X to c would be declared
class sample {
int a;
char c;
public:
sample(int x, char ch) {a = x; c = ch;}
//...
};
Date posted: May 12, 2018. Answers (1)
- Given the following base class, show how it can be inherited by a derived class called mars
class planet {
int moons;
double dist_from_sun;
double diameter;
double mass
public:
// ...
};(Solved)
Given the following base class, show how it can be inherited by a derived class called mars
class planet {
int moons;
double dist_from_sun;
double diameter;
double mass
public:
// ...
};
Date posted: May 12, 2018. Answers (1)
- Given the following class, what are the names of its constructor and destructor functions?
class widgit {
int x, y;
public :
//.....fill in constructor and destructor functions
};(Solved)
Given the following class, what are the names of its constructor and destructor functions?
class widgit {
int x, y;
public :
//.....fill in constructor and destructor functions
};
Date posted: May 12, 2018. Answers (1)
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Date posted: May 12, 2018. Answers (1)
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Create a class called prompt in C++ language.Pass its constructor function a prompting string of your choice.Have the constructor display the string and then input an integer.Store this value in a private variable called count.When an object of type prompt is destroyed, ring the bell on the terminal as many times as the user entered.
Date posted: May 12, 2018. Answers (1)