CompSci - Data Security & Integrity

Question 1

Security Problems Occuring During Online File Transfer

Answer 1

Data can be:

Intercepted
Corrupted
Overwritten by concurrency of transfer
Malware

Question 2

Encryption Types

Answer 2

Symmetric - Both sender and receiver share a key used to encrypt and decrypt sent data

Asymmetric - Both sender and receiver have two keys each, public and private. If someone sends a message, the message is encrypted with the receiver’s public key and can only be decrypted with their private key.

Question 3

Biometric Data Collection Complexity

Answer 3

High-quality sensors that can vary by environment
User cooperation
High natural variability in data
Privacy concerns

VQCP

Question 4

Biometric Data

Answer 4

Physical traits that can be measured and stored in a database and used to uniquely identify the person they belong to

Question 5

How Is Maximum Accuracy Achieved? (Truncation & Rounding)

Answer 5

All calculations are performed while utilising the maximum possible decimal places available and only the final result is truncated or rounded.

Rounding is always better or as good as truncation.

Question 6

Penetration Testing Types

Answer 6

Internal testing
External testing
Blind testing
Double blind testing

Question 7

Malware Vectors

Answer 7

Watering hole
Domain shadowing
Malvertising
SQL injection
Phishing