Space — each pressing of the key will be displayed as ·
Non-breaking space (°) is a space character that prevents an automatic line break at its position.
Answer:
keys in a worst case scenario
Explanation:
So, Average will be : 
(Answer)
Answer: The statement implies that the hackers psychologically manipulate the human to access the information they need.
Explanation: The author states that the hacker does not only exploits technology to get system access or to gather information. But there is another pivotal part of hacking. He refers to this part as "social engineering".
Social engineering from information security perspective means manipulate human emotions and convincing them to disclose some confidential information. Hacker often hacks or defrauds after gaining confidence and trust of a person.
Phishing is an example. It is a fraudulent technique for getting some secret information. Phisher sends an email pretending to be from some reputable organization to persuade people to divulge private information like passwords and credit card numbers, ATM card pin etc.
Answer:
See the program code below.
Explanation:
def cube_SA(edge):
edge = int(input("Enter the cube's edge: "))
sa = edge * edge * 6
print("The surface area is {} square units".format(sa))
cube_SA(4)
Best Regards!
Answer:
Step One - problem/opportunity identification (V)
Step Two - Analysis (III)
Step Three - Design (II)
Step Four - Development (I)
Step Five - Testing and Installation (IV)
Explanation:
In the field of software development, or systems engineering, SDLC which refers to software development cycle refers to a systematic way of building software applications, it shows unique stages with the outcome of each stage dependent on the previous, step has a unique task which range from the planning, analysis, development, testing and installation of the information system.