Answer:
Interrupt (INT) helps operating system to stop work on one process and start work on other process using interrupt signals.
Explanation:
Purpose of interrupts:
• Interrupts are useful when an I/O device needs to be serviced only occasionally at low data transfer rate.
• For example, when a peripheral requires the attention of the processor to perform an I/ O operation.
A trap:
• also known as an exception or a fault, is typically a type of synchronous interrupt caused by an exceptional condition
• is a software-generated interrupt.
• For example it's caused by division by zero or invalid memory access.
Can traps be generated intentionally by a user program? Yes.
If so, for what purpose?
• the usual way to invoke a kernel routine (a system call) because those run with a higher priority than user code.
• Handling is synchronous, so the user code is suspended and continues afterwards.
• In a sense they are active - most of the time, the code expects the trap.
Where Joe, a user, receives an email from a popular video-streaming website and the email urges him to renew his membership. If the message appears official, but Joe has never had a membership before, and if when Joe looks closer, he discovers that a hyperlink in the email points to a suspicious URL, note that the security threat that this describes is: "Phishing" (Option B)
<h3>What is Phishing?</h3>
Phishing is a sort of social engineering in which an attacker sends a fake communication in order to fool a person into disclosing sensitive data to the perpetrator or to install harmful software, such as ransomware, on the victim's infrastructure.
To avoid phishing attacks, make sure you:
- understand what a phishing scheme looks like
- Please do not click on that link.
- Get anti-phishing add-ons for free.
- Don't provide your information to an untrusted website.
- Regularly change passwords.
- Don't disregard those updates.
- Set up firewalls.
- Don't give in to those pop-ups.
Learn more about Phishing:
brainly.com/question/23021587
#SPJ1
Full Question:
Joe, a user, receives an email from a popular video streaming website. The email urges him to renew his membership. The message appears official, but Joe has never had a membership before. When Joe looks closer, he discovers that a hyperlink in the email points to a suspicious URL.
Which of the following security threats does this describe?
- Trojan
- Phishing
- Man-in-the-middle
- Zero-day attack
def missing_num(lst):
for n in range(1,11):
if n not in lst:
print(n)
lst = (1,3,4,5,6,7,8,9,10)
missing_num(lst)
I hope this helps!
Answer: open-source software framework designed for distributing data-processing over inexpensive computers.
Explanation:
Hadoop refers to the collection of open-source software utilities which are important in facilitating the use of a network of several computers to solve big data.
It provides huge storage for different kinds of data, and the ability to handle concurrent tasks virtually. Therefore, the correct option is "open-source software framework designed for distributing data-processing over inexpensive computers".
