The correct answer is A. Opening
Explanation:
In a presentation or the text, the opening is the first section that should allow the audience to understand what is the topic and focus. This is achieved through a hook that can include an interesting fact or a rhetorical question (a question that makes the audience think) because these two elements grab the attention of the audience. Additionally, after the hook, it is common to provide background information about the topic of the presentation, and finally, the speaker will state the main point or thesis statement. This occurs before the body of the presentation, which is the main section, and the closing, which is the last section. Thus, elements such as background information or an interesting fact are part of the opening.
Answer:
A type of malicious code or program written to alter the way a computer operates and is designed to spread from one computer to another.
Once a virus has successfully attached to a program, file, or document, the virus will lie dormant until circumstances cause the computer or device to execute its code. In order for a virus to infect your computer, you have to run the infected program, which in turn causes the virus code to be executed.
<span>If a DNS packet using UDP is lost this problem must be handled at the application layer. If an answer is not received after some period of time the specific application may choose to resend the DNS query. I can go much more into detail but this should answer your question. If you need more detail just ask.</span>