Answer: A. Network Access Control (NAC)
Explanation:
The CORRECT answer is (A.) <em>Network Access Control (NAC)</em>. NAC refers to an method used in computer protection in which aspects such as antivirus, or host intrusion prevention among others are somehow consolidated in order to unify endpoint security. Such an approach allows the system authentication to enforce network security.
In order to keep the plane travelling at a constant speed, an automatically controlled feedback loop is more reliable.
<u>Explanation:</u>
The main reason behind this is that the plane needs to travel at a constant speed and that would only be maintained by setting constant feedback for the loop.
The feedback being constant will correspond to constant input which will, in turn, correspond to a constant output and hence constant speed.
In the case of using a manually controlled feedback loop, feedback will have to be provided manually at each iteration which is not practically viable as there is a scope for errors.
Answer:
The switch sends broadcast traffic to all ports like a hub to get the number of ports used and build its MAC address table.
Explanation:
A network switch is a device used in a LAN to connect all available workstations. Unlike a network hub, it is able to send frames from a host or workstation to another using its MAC address table.
An example of a switch is the Cisco 2950 switch. When it is first turned on, it acts as a hub, broadcasting traffic to all its ports. This process is used to create a MAC address table to get the IP address of workstations and the ports they relate to, enabling it to send unicast traffic to a specific port.
They where high ranking aristocrats in Russia during the 16th century. They where all executed.
