Hashing Function Quiz

What does a hashing function do?

• Encrypts data into an unreadable format

• Transforms a string of characters into a fixed-length value

• Compresses files to save space

• Converts numerical data into graphical representations

What does a hashing function do?

• Encrypts data into an unreadable format

• Transforms a string of characters into a fixed-length value

• Compresses data into a smaller size

• Translates data into a different language

What is the result of a slight change in the input message to a hashing function?

• No change in the hash value

• A small change in the hash value

• A totally different hash value

• The input message becomes corrupted

What is the main difference between hashing and encryption as shown in the image?

• Hashing and encryption both produce a human-readable output.

• Hashing is reversible while encryption is not.

• Hashing produces a fixed-size hash value, whereas encryption produces an encrypted value that can be of variable length.

• Encryption uses a key for the transformation process, while hashing does not.

What is the purpose of both hashing and encryption according to the image?

• To compress data into a smaller format.

• To transform human-readable input into unreadable output.

• To encrypt data for secure storage only.

• To hash data for password protection only.

What is the main difference between hashing and encryption techniques?

• Hashing is a two-way process, while encryption is not.

• Encryption is a one-way process, while hashing is not.

• Hashing is a one-way process, while encryption is a two-way process.

• There is no difference; both are two-way processes.

Can you get back to the original value from a hashed value?

• Yes, if you have the hashing algorithm.

• Yes, if you have the encryption key.

• No, because hashing is a one-way process.

• Yes, always.

Why is hashing considered ideal when storing information like passwords and PINs?

• A) It allows easy retrieval of the original passwords and PINs.

• B) It prevents the information from being read by a hacker.

• C) It makes the system run faster.

• D) It requires less storage space.

What needs to be stored in the system during the creation of an account for an online revision program?

• A) The student's full name and address.

• B) The student's username and password.

• C) The student's favorite color and pet's name.

• D) The student's phone number and email address.

Why would it be a bad idea for the system to store passwords in plain text?

• A) It would be too difficult for the system to manage.

• B) It would make the passwords easier to remember for the users.

• C) It would be a security risk as the passwords could be easily read.

• D) It would take up more space in the database.