1. Local-Area Network (LAN); is a computer network located in a single building or in nearby buildings e.g. a school, a department, or a number of offices. Typically the computers are connected by copper cables.
2. Wide-Area Network (WAN); is a network which serves computers located at far away distances - across towns and countries. Communication between the various computers is usually carried out via telephone lines, fibre-optic links, radio link, satellite etc.
3. Virtual Private Network (VPN); is a private network that is built over a public infrastructure typically the Internet. A VPN is similar to a WAN in that it enables users to connect to a private network that may be located at far away distances, however VPN uses the Internet for such connections. Several companies enable their employees to connect to the company’s private network (LAN) from their homes via VPN connections. Employees will be able to access data and other resources securely on the company’s network as if they are at the office.
Dominic M answered the question on May 16, 2018 at 09:48
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In DES, the encryption and decryption algorithms are the same. Is that also the case in AES?
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Constructing who #X
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Destroying who #x
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Date posted:
May 12, 2018
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Answers (1)
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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...
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Date posted:
May 12, 2018
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Answers (1)
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(Solved)
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// 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";
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}
Date posted:
May 12, 2018
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Answers (1)
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Date posted:
May 12, 2018
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Answers (1)
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Date posted:
May 12, 2018
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Answers (1)
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Date posted:
May 12, 2018
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Answers (1)
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(Solved)
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Date posted:
May 12, 2018
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Answers (1)
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Explain what an anonymous union is and how it differs from a normal union.
(Solved)
Explain what an anonymous union is and how it differs from a normal union.
Date posted:
May 12, 2018
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Answers (1)
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Date posted:
May 12, 2018
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Answers (1)
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Given the following base C++ class,
class area_cl {
public:
double height;
double width;
};
Create two derived classes called rectangle and isosceles that inherit area_cl. Have each class include a...
(Solved)
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class area_cl {
public:
double height;
double width;
};
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Date posted:
May 12, 2018
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Answers (1)