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Exam 8: Information Security

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Question 21

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A Trojan horse embeds itself within another program or file, and when that program or file is activated, it copies itself and attacks other files on the system. _________________________

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Question 22

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Provide at least five examples of ways in which you can protect yourself from online threats.

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• Be sure your computer has up-to-date a...

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Question 23

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____ governs what an authenticated user is allowed to do.

In a(n)public-key system, the __________ for messages to go to a particular receiver is broadcast to everyone, but the decryption key cannot be derived from it and is known only by the receiver.

The success of RSA encryption depends on the fact that it is extremely difficult to find the prime factors for n if n is a large number.

_______ is the hide in plain sight encryption when a text file is hidden in an image file by changing (if needed)the least significant bit of each byte of the image file to match the binary form of the characters in the text.

For a given user ID, ____ software will first try all words in its built-in dictionary, encrypting each with the well-known hash function and comparing the result with the password file.

A ____ is an integer greater than 1 that can only be written as the product of itself and 1.

The exchange of setup information between the client and server, preparatory to exchanging real data, is known as a ____.

A ____ cipher, also called a shift cipher, involves shifting each character in the message to another character some fixed distance farther along in the alphabet.

Explain what an embedded computer is and provide examples.

A(n)asymmetric encryption algorithm requires the use of a secret key known to both the sender and receiver. _________________________

Firewall software guards the access points to your computer, blocking viruses from sites . _________________________

Explain what a denial-of-service attack is, including the terms DDOS and zombie army in your response.

SSL protocols are the only security protocols that are supported by all web browsers.

The operating system encrypts the password for a given user by encoding the information, using a process that is easy to apply but difficult to undo.

____________________ is the science of "secret writing."

What is the definition of phishing?

What is the major difference between TSL and SSL?

Your best defense against someone guessing your password is to be smart about how you choose and use your password.