FD3- Data Protection Flashcards

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1
Q

What is data protection method?

A

safeguard important information from corruption, compromise or loss.

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2
Q

Explain importance of Data Protection.

A

protect important information that is highly sensitive and private
Ensure data privacy and integrity

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3
Q

What are the 2 ways of protection methods in modern computing?

A

Encryption
Authentication

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4
Q

What is Encryption and Decryption

A

Encryption: Encoding data via encryption key
Decryption: Decoding data via decryption key

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5
Q

Explain advantages and disadvantages of encryption.

A

Advantages:
1)Only authorized person can access the data
2) Data can be moved safely. Without key, data will remain in encryption

Disadvantages:
1)Can be brute-forced ( trial and error)
2)Data is forever encrypted if the person lost the key
3)Encryption algorithm may be cracked

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6
Q

What is Authentication?

A

System Entry Security measure based on user input

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7
Q

What are the examples for Authentication?

A

Passwords
Digital Signature
Biometrics

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8
Q

What is Passwords?

A

A string of characters used to verify identity of users.
Comprise of alphabets, numbers and symbols
Data is only accessible when the correct character string is input

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9
Q

What are the advantages of Passwords

A

-easy to use
-easy to implement
-additional layer of protection

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10
Q

What are the disadvantages of passwords?

A

-can be brute-forced
-Strength of passwords depends of its complexity
-A burden to user if password is complicated
-No identity check to authenticate the user is real

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11
Q

What is a digital signature?

A

An electronic signature to identity of a sender to ensure validity of information.

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12
Q

What are the advantages of digital signatures?

A

-Ensure integrity
-Ensure accuracy (can only be decrypted by the correct key)
-Efficiency (faster and cheaper due to digitalization of data)
-Law evidence (faking signature is nearly impossible)

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13
Q

What are the disadvantages for digital signature?

A

-Certain countries might not legitimize digital signature
-Specific software are required to use digital singatures.

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14
Q

What is biometrics?

A

Authentication of person through comparison of bodily measurements to the pre-stored data of same person’s measurements

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15
Q

What are the examples of biometrics?

A

Face recognition
Fingerprint recognition
Voice Recognition

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16
Q

What are the two phase for biometrics authentication?

A

Phase 1- digitise information into database via scanners
Phase 2- Match the version in database

17
Q

What are the advantages of biometrics?

A

-Virtually impossible to forge an individual
-Simple
-Little chance of losing authentication components

18
Q

What are the disadvantages of Biometrics?

A

-Error of system may occurs
-Biometrics can change over time
-Requires constant updates