Lecture Review Questions

What is an effective way to prevent phishing attacks?

• Implement strong password policies.

• Conduct regular staff training sessions.

Answer explanation

To address a phishing email, do not click on any links or download attachments. Report the email to your IT department or email provider, and delete it to prevent any potential security risks.

What is a common solution for a data breach?

What is the method used to transform 'hello' into 'ifmmp'?

• Caesar cipher with a shift of 1

• Reverse the string

• Substitute vowels with the next vowel

• Convert to uppercase

What is the decrypted message of: “Tb xob ibxokf dqlox qeb Zvbybo pbzrofpq”?

• To win against defeat the Warrior champion

• To see beyond reach the Horizon explorer

• To fly above clouds the Eagle adventurer

• To run faster than the Cheetah sprinter

What is a potential issue with Asymmetric encryption when you receive files from another party, even if you have the decryption key?

• The files may be corrupted during transmission.

• The files may not be authentic or from a trusted source.

• The decryption key may not work with the files.

• The files may be too large to decrypt.

Why would Sophia want to irreversibly encrypt her personal data, I hear you say?!

• To ensure data cannot be decrypted

• To allow easy data recovery

• To make data accessible to everyone

• To reduce data storage size

"Hashing and Encryption are both essentially the same thing as they turn plain text into an unreadable format". Explain what is wrong with this statement.

• Hashing and encryption are the same because both convert data into unreadable formats.

• Hashing is a one-way function and cannot be reversed, while encryption is reversible.

• Both hashing and encryption are used for data integrity.

• Hashing and encryption use the same algorithms.

Provide a good example of what hashing is used for.

• Password storage

• Data encryption

• File compression

• Network routing

Justify your answer (Q8).
Provide a good example of what hashing is used for.

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Provide other examples of when hashing might be used.

• Password storage

• Data integrity verification

• Digital signatures

• All of the above