CompTIA PT0-003 Exam - Topic 3 Question 11 Discussion

Actual exam question for CompTIA's PT0-003 exam

Question #: 11
Topic #: 3

Which of the following OT protocols sends information in cleartext?

ATTEthernet

BDNP3

CModbus

DPROFINET
Operational Technology (OT) protocols are used in industrial control systems (ICS) to manage and automate physical processes. Here's an analysis of each protocol regarding whether it sends information in cleartext:
TTEthernet (Option A):

Show Suggested Answer

Suggested Answer: C

Security: It includes mechanisms for reliable and deterministic data transfer, not typically sending information in cleartext.

DNP3 (Option B):

Security: While the original DNP3 protocol transmits data in cleartext, the DNP3 Secure Authentication extensions provide cryptographic security features.

Modbus (Answer: C):

Security: Modbus transmits data in cleartext, which makes it susceptible to interception and unauthorized access.

Security: PROFINET includes several security features, including support for encryption, which means it doesn't necessarily send information in cleartext.

Conclusion: Modbus is the protocol that most commonly sends information in cleartext, making it vulnerable to eavesdropping and interception.

PROFINET (Option D):

by Aja at Sep 18, 2024, 01:06 AM

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Hyun

6 months ago

Wait, are we sure about TTEthernet? Sounds off.

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Samira

6 months ago

Yeah, Modbus is known for that!

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Nohemi

6 months ago

PROFINET uses cleartext too, right?

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Rusty

7 months ago

I thought DNP3 was secure?

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Isabella

7 months ago

Modbus definitely sends data in cleartext.

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Elsa

7 months ago

I feel like PROFINET might have some security features, but I can't remember if it sends everything in cleartext.

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Jame

7 months ago

I practiced a similar question about OT protocols last week, and I think TTEthernet was one of the options too.

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Doretha

7 months ago

I remember DNP3 being mentioned in class, but I can't recall if it uses encryption or not.

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Shonda

8 months ago

I think Modbus sends data in cleartext, but I'm not entirely sure if that's the only one.

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Michal

8 months ago

Okay, I know DNP3 (option B) is an older protocol that often uses cleartext transmission. I think that's the most likely answer here, but I'll double-check the other options just to be sure.

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Lyda

8 months ago

Hmm, I'm not too familiar with all these OT protocols. I'll have to review my notes and try to remember which ones are known to use cleartext communication.

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Cyndy

8 months ago

This is a tricky one. I'll need to think carefully about the characteristics of each OT protocol to determine which one sends information in cleartext.

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Reena

8 months ago

I'm pretty sure Modbus (option C) sends data in cleartext, but I'm not 100% certain about the others. I'll make my best guess and hope I get it right.

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Olive

8 months ago

Okay, I've got this. The key is to showcase Cisco's holistic solutions and architectural advantages. I'll make sure to hit those points in my response.

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