By definition, a pothole is a structure mostly located at the surface of roads and highways wherein it is usually characterised by having deep crevices which are primarily caused by extreme soil erosion or the presence of water in the area. In addition, these potholes greatly affect the transportation system of South Africa because the flow of traffic will be interrupted.
<u>Explanation:</u>
a.
- One user can read the private data of another user-privacy.
- One user can prevent another user from getting anything done-denial of service.
Indeed, in any multiprogramming and time-sharing environment since the computers of users are networked together, then it is very possible for a bad actor to read the private data of another user, or even prevent another user from accessing their computer by employing a denial of service attack on the network. In other words, the network would be unable to handle the request of users since has been overloaded by another user.
b. a. Yes - if we can ensure that the operating system prevents any sharing of data between users, either for reading or writing and fairly shares the computer, then we can achieve the same level of security.
Answer:
To solve the problem, first,
a) The computer account should be reset.
b) Deactivate the computer from the domain.
c) Then, rejoin it to the domain.
Explanation:
A domain is a network that allows different computers to function and operate from a common server. A domain may or may not be protected by a password. Setting up a domain provides additional security thereby blocking other computer networks from having access to it. When a person is experiencing difficulties in logging into a domain, there are certain things to be done to resolve the issue.
First, reset the computer account.
Secondly, deactivate the computer from the domain.
Third, Rejoin it back to the domain.
Answer:
Selective Repeat protocols
Explanation:
It is better to make use of the selective repeat protocol here. From what we have here, there is a high error rate on this channel.
If we had implemented Go back N protocol, the whole N packets would be retransmitted. Much bandwidth would be needed here.
But we are told that bandwidth is limited. So if packet get lost when we implement selective protocol, we would only need less bandwidth since we would retransmit only this packet.
Answer:
False
Explanation:
When an employee becomes the one responsible for the security of His own computer then the scenario does not define Network security. Network security is a usage of hardware and related software to provide protection to the underlying network architecture from unauthorized access and other anomalies related to networks.
