Week 8 Q's

Question 1

What is one major vulnerability of the ModbusTCP protocol?

A. It supports only a limited number of devices.

B. It lacks authentication, integrity check, and encryption.

C. It requires physical access to the network.

D. It is only compatible with older SCADA systems.

Answer 1

B

Question 2

Which of these is NOT a type of Modbus attack based on the provided information?

A. TCP only attacks

B. Serial and WiFi attacks

C. Serial only attacks

D. Serial and TCP attacks

Answer 2

C

Question 3

For communication with actuators in a CPS using Modbus, what type of memory is used?

A. Holding registers

B. Input registers

C. Coils

D. Discrete input

Answer 3

C

Question 4

Which type of attack involves inserting fake sensor data into the system?

A. SE-attack

B. SI-attack

C. AE/AD-attack

D. DoS attack

Answer 4

C

Question 5

PyModbusTCP can be used to directly attack the sensor values on an input register.

A. True

B. False

Answer 5

B

Question 6

PyModbusTCP can be used to directly attack the sensor values on a holding register.

A. True

B. False

Answer 6

B