Protecting the Power supply
Adding disk Arrays
Install an NLB Cluster
Answer:
In media production, a key frame or keyframe is a location on a timeline which marks the beginning or end of a transition. It holds special information that defines where a transition should start or stop. The intermediate frames are interpolated over time between those definitions to create the illusion of motion.
Explanation:
Complete Question:
Firewall implementation and design for an enterprise can be a daunting task. Choices made early in the design process can have far-reaching security implications for years to come. Which of the following firewall architecture is designed to host servers that offer public services?
a) Bastion Host
b) Screened subnet
c) Screened host
d) Screened
Answer:
b) Screened subnet
Explanation:
In Computer science, Firewall implementation and design for an enterprise can be a daunting task. Choices made early in the design process can have far-reaching security implications for years to come.
Screened subnet firewall architecture is designed to host servers that offer public services.
In network security and management, one of the network architecture used by network engineers for the prevention of unauthorized access of data on a computer is a screened subnet. A screened subnet can be defined as a network architecture that uses a single firewall with three screening routers as a firewall.
<em>A screened subnet is also known as a triple-homed firewall, this is because it has three (3) network interfaces;</em>
1. Interface 1: it is known as the external or access router, which is a public interface and connects to the global internet.
2. Interface 2: it is known as the demilitarized zone or perimeter network, which acts as a buffer and hosted public servers (bastions host) are attached herein.
3. Interface 3: it is known as the internal router, which is a subnet that connects to an intranet.
<em>The screened subnet when properly configured helps to prevent access to the internal network or intranet. </em>
Answer:
c. Group use cases by actor.
Explanation:
A use case is used to describe interaction between systems and users to achieve a goal. Mostly, a list of possible interaction between the system and the user is identified. The user can be a single person or a group. By using use case, the requirement of a systems is identified from a users point of view.
Answer:
A lot is wrong with the program given in the question. See the corrected version below:
<em>public class ANot {</em>
<em> public static void main(String[] args) {</em>
<em> int a, b, c;</em>
<em> //Three integers</em>
<em> a = 3; b = 4; c = a + b;</em>
<em> System.out.println("The value of c is " + c);</em>
<em> }</em>
<em>}</em>
Explanation:
Errors:
1. The main method had a semi colon after it. This is wrong
2. An open brace was supposed to follow the main method
3. The declaration of the variables was supposed to end with a semi colon
4. the correct comment style is // and not \\
5. Initialization of variables was supposed to end with semi colons
6. The output statement had C and not c which is the declared and initialized variable..Java is strictly typed
7. Open and closing braces for the class and method wrongly placed
