Cybersecurity Fundamentals Specialist Practice Test

Cybersecurity Fundamentals Specialist Practice Test practice questions, page 4 of 9, with answer review and explanations.

Question 16

Which is a commonly used protocol for managing secure data transmission on the Internet?

  1. Datagram Transport Layer Security (DTLS)
  2. Microsoft Point-to-Point Encryption (MPPE)
  3. Secure Telnet
  4. Secure Sockets Layer (SSL)

Question 17

Why is OPC Classic considered firewall unfriendly?

  1. OPC Classic uses DCOM, which dynamically assigns any port between 1024 and 65535.
  2. OPC Classic is allowed to use only port 80.
  3. OPC Classic works with control devices from different manufacturers.
  4. OPC Classic is an obsolete communication standard.

Question 18

Which layer specifies the rules for Modbus Application Protoco1 (MBAP)?

  1. Data link layer
  2. Session layer
  3. Presentation layer
  4. Application layer

Question 19

Which is a role of the application layer?

  1. Includes protocols specific to network applications such as email, file transfer, and reading data registers in a PLC
  2. Includes user applications specific to network applications such as email, file transfer, and reading data registers in a PLC
  3. Provides the mechanism for opening, closing, and managing a session between end-user application processes
  4. Delivers and formats information, possibly with encryption and security

Question 20

Which factor drives the selection of countermeasures?

  1. Foundational requirements
  2. Output from a risk assessment
  3. Security levels
  4. System design