QUIZ 1 - Basic Cellular Systems

Question 1

What length of key does a pure OTP use?

Answer 1

A key the same length as P

Question 2

How does TDMA divide users?

Answer 2

By time

Question 3

What is Authentication

Answer 3

Verification of identities

Question 4

What is Diffusion?

Answer 4

Each plaintext bit and each key bit should effect each ciphertext bit.

Question 5

What are the main benefits of Symmetric Key cryptography?

Answer 5

Speed and efficiency

Question 6

What is the industry standard block cipher?

Answer 6

AES

Question 7

What are the encryption types?

Answer 7

Asymmetric
Symmetric

Question 8

What is Nonrepudiation?

Question 9

What does LTE mean?

Answer 9

Long Term Evolution

Question 9

What process was used to allow multiple simultaneous users in 3G?

Answer 9

WCDMA

Question 10

What process was used to allow multiple simultaneous users in 2G?

Answer 10

TDMA

Question 11

What are the main functions of 3GPP?

Answer 11

Communications Management
Radio Resource Management
Mobility Management

Question 12

What is Cryptography?

Answer 12

Designing systems based on secret writing techniques

Question 13

What is Plaintext?

Answer 13

Readable text

Question 14

What is Ciphertext?

Answer 14

Encrypted Text

Question 15

What is the formula for Encryption?

Answer 15

P * L —> C

Question 16

What is the formula for decryption?

Answer 16

C * K —-> P

Question 17

How does FDMA separate users?

Answer 17

By frequency

Question 18

What security primitives are contained within the CIA Triad ?

Answer 18

Confidentiality
Integrity
Availability

Question 19

What is Cryptanalysis?

Answer 19

Analyzing cryptographic systems and trying to find weaknesses.

Question 20

Which hashing algorithm is recommended by NIST?

Answer 20

SHA - 256

Question 21

What does a hash function do?

Question 22

What process was used to allow multiple simultaneous users in 1G?

Answer 22

FDMA