A. defragging your hard drive
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Answer:
The formula and value to this question is "=A1+A3+A4+A5 with value 100"
Explanation:
The explanation of the given question as follows:
- In question, it is defined that four cells that are "A1, A2, A3, and A4" contains value that are "10, 20, 30, and 40".
- To add these values we use addition formula that is "=A1+A2+A3+A4". it will give value 100.
- If the user inserts a new row that is "A2" and assigns a value in the cell that is "50" so, we use the above formula that adds values with these values we also use the value "100".
Answer:
In the context of cyber security, social engineering (SE) is a deceptive practice that exploits human <u>weaknesses </u> by inducing victims to interact with a digital device in a way that is not in their best interest. Many of these attacks begin with<u> spam</u> , which is defined as unsolicited messages that are usually sent in massive numbers using electronic mail systems. A spam <u>filter</u> uses a set of rules to examine email messages and determine which are spam. There are four common types of spam filters.<u> Content </u>filters examine the content within a message for certain words or phrases commonly used in spam emails.<u> Header</u> filters review the email header for falsified information, such as spoofed IP addresses. <u>Blacklist</u> filters block mail that originates from IP addresses of known spammers. <u>Permission </u> filters block or allow mail based on the sender's address. <u>Phishing</u> is an email scam that masquerades as a message from a(n) legitimate company or agency of authority, such as the IRS. <u>Pharming</u> redirects Web site traffic to fraudulent Web sites that distribute malware, collect personal data, sell counterfeit products, and perpetrate other scams. A rogue <u>antivirus </u> exploit usually begins with a virus warning and an offer to disinfect the infected device. Some software is not exactly malware, but it is a nuisance. A <u>PUA </u>takes up residence on a digital device and seems impossible to disable or remove.
Answer:
False
Explanation:
Proprietary networks are those that are privately and exclusively managed, controlled and even owned by some organizations.
Internet Service Providers (ISPs) are companies that provide internet access services to companies and consumer products. They allow devices to connect to the internet. They offer much more than just internet access. They also offer related services such as email access, web development and virtual hosting.
ISPs can be open source or proprietary. They could be owned by a community, a firm and even non-profit organizations.