LATEST ISA-IEC-62443 TEST GUIDE, MOCK ISA-IEC-62443 EXAMS

Latest ISA-IEC-62443 Test Guide, Mock ISA-IEC-62443 Exams

Latest ISA-IEC-62443 Test Guide, Mock ISA-IEC-62443 Exams

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Tags: Latest ISA-IEC-62443 Test Guide, Mock ISA-IEC-62443 Exams, Downloadable ISA-IEC-62443 PDF, ISA-IEC-62443 Latest Test Discount, ISA-IEC-62443 Vce File

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q73-Q78):

NEW QUESTION # 73
Which layer in the Open Systems Interconnection (OSI) model would include the use of the File Transfer Protocol (FTP)?
Available Choices (select all choices that are correct)

  • A. Application layer
  • B. Data link layer
  • C. Transport layer
  • D. Session layer

Answer: A

Explanation:
The File Transfer Protocol (FTP) is an application layer protocol that moves files between local and remote file systems. It runs on top of TCP, like HTTP. To transfer a file, 2 TCP connections are used by FTP in parallel: control connection and data connection. The control connection is used to send commands and responses between the client and the server, while the data connection is used to transfer the actual file. FTP is one of the standard communication protocols defined by the TCP/IP model and it does not fit neatly into the OSI model. However, since the OSI model is a reference model that describes the general functions of each layer, FTP can be considered as an application layer protocol in the OSI model, as it provides user services and interfaces to the network. The application layer is the highest layer in the OSI model and it is responsible for providing various network services to the users, such as email, web browsing, file transfer, remote login, etc.
The application layer interacts with the presentation layer, which is responsible for data formatting, encryption, compression, etc. The presentation layer interacts with the session layer, which is responsible for establishing, maintaining, and terminating sessions between applications. The session layer interacts with the transport layer, which is responsible for reliable end-to-end data transfer and flow control. The transport layer interacts with the network layer, which is responsible for routing and addressing packets across different networks. The network layer interacts with the data link layer, which is responsible for framing, error detection, and medium access control. The data link layer interacts with the physical layer, which is responsible for transmitting and receiving bits over the physical medium. References:
* File Transfer Protocol (FTP) in Application Layer1
* FTP Protocol2
* What OSI layer is FTP?3


NEW QUESTION # 74
Which is the BEST deployment system for malicious code protection?
Available Choices (select all choices that are correct)

  • A. Network segmentation
  • B. Application whitelistinq (AWL) OD.
  • C. IACS protocol converters
  • D. Zones and conduits

Answer: D


NEW QUESTION # 75
Which is a role of the application layer?
Available Choices (select all choices that are correct)

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

Answer: B


NEW QUESTION # 76
Which of the following refers to internal rules that govern how an organization protects critical system
resources?
Available Choices (select all choices that are correct)

  • A. Security policy
    D- Code of conduct
  • B. Formal guidance
  • C. Legislation

Answer: A


NEW QUESTION # 77
Which is the PRIMARY objective when defining a security zone?
Available Choices (select all choices that are correct)

  • A. All assets in the zone must be from the same vendor.
  • B. All assets in the zone must be physically located in the same area.
  • C. All assets in the zone must be at the same level in the Purdue model.
  • D. All assets in the zone must share the same security requirements.

Answer: D


NEW QUESTION # 78
......

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