Exam N10-008 topic 1 question 356 discussion

What do you think? Jason Dion stated below; Now, we can do the exact same thing in our networks. If I'm trying to troubleshoot the internet is down issue for this end user, I could figure out what the halfway point is between their computer and the internet, which would probably be our default gateway. I could then try to send a ping from the end-user's computer to the default gateway. If it works, that means my internal network is functioning fully, and the problem exists between my default gateway and the internet connection or the distant web server. Now, this is my halfway point and with a single ping, I already verified the entire internal network is working from the end user, all the way up to the gateway. This is my DIVIDE and CONQUER APPROACH at work, also known as half-splitting if you use my terminology. If its a Bottom Approach, the question will state that they did check the Link Light of the Switch and the network interface card of the device.

No chatgpt can make sense of the minds creating these questions. As long as we create enough confusion in the world no AI can take over. Make chatgpt do some certification exams and it will quit by itself

is this question for real... no seriously is this a real question.... I can sit here and make a complete and valid argument for all 3 answers. You're pinging thats a layer 3 so you must be working from the bottom (also need to prove your wiring is working right). You're doing the DNS Server that's an application your starting from the top. You're tackling both gateway and DNS dividing the problem into multiple sect to find the problem. WHY IS THIS A QUESTION!!! The only purpose for this question is for you to put a wrong answer!

The Answer is A because with divide-and-conquer approach you can start to troubleshoot within the OSI layer and work your way up or down. With this approach your investigation/troubleshooting does not always commence at a particular OSI layer, you basically select a layer that is not the Application nor Physical layer and test its health. Based on those results you either go up or down.

The technician's actions do not represent a bottom-up approach because they are not starting with the lowest-level components. In a bottom-up approach, the technician would start with the workstation itself, checking things like the network adapter settings, cable connections, or IP configuration before moving on to higher-level components like the default gateway or DNS server. In this scenario, the technician is starting with higher-level components, so their actions are more representative of a top-to-bottom approach. In summary, while both top-to-bottom and bottom-up approaches are valid troubleshooting methodologies, the specific actions described in this scenario align more closely with a top-to-bottom approach.

As Jason Dion mentioned in his course it is Divide and Conquer

The technician attempts to ping the default gateway and DNS server. This is in Network layer, means it is a Divide and Conquer Approach troubleshooting

Top-to-Bottom Approach = Technician is using the most basic method of troubleshooting the network by pinging the outermost layer of the system. https://www.test-king.com/guide-640-864-describe-top-down-approach-to-network-design.htm#:~:text=Top%20down%20approach%20to%20design,needs%20of%20the%20network%20application.

Top-to-bottom approach in troubleshooting involves starting the diagnostic process from higher-level network layers or components and systematically moving downwards. In this scenario, the technician begins the troubleshooting process by checking connectivity to higher-level network elements, such as the default gateway and DNS server, which are considered fundamental components in the network hierarchy.

This looks to be divide and conquer to me. The default gateway and DNS server are layer 3. if it was bottom to top they would be starting at layer 1...

it is B

i did a chat to :P by simply asking why it is not b i got the b answer. did also worked for a and d btw :P In the given scenario, where the technician attempts to ping the default gateway and DNS server of the workstation, it represents a bottom-up approach in troubleshooting methodology. A bottom-up approach involves starting with the lower-level components or foundational elements of a system and gradually moving upward to more complex components. In this case, the technician is beginning with testing the connectivity to essential network components such as the default gateway and DNS server, which are considered lower-level elements in the network stack. Therefore, option B (a bottom-up approach) is the correct description of the scenario provided. I apologize for the earlier mistake.

The answer is C, a top-to-bottom approach. In this scenario, the technician is starting at the top of the OSI model and working their way down to isolate the issue. By attempting to ping the default gateway and DNS server, the technician is verifying connectivity at the network layer (Layer 3) and transport layer (Layer 4) of the OSI model, respectively. This approach helps to narrow down the potential causes of the issue and ultimately leads to a quicker resolution.

B. a bottom-up approach.

B. a bottom-up approach In a bottom-up approach, the technician starts by checking the most basic and fundamental components of the system first, and then moving up to more complex components. By pinging the default gateway and DNS server, the technician is checking the connectivity of the workstation to the network and the ability of the workstation to resolve domain names. This is the first step in troubleshooting the problem with the website and is a bottom-up approach as it starts from the lowest level of the system and works its way up. A divide-and-conquer approach is where the technician breaks down the problem into smaller and manageable parts and then addresses each part separately, A top-to-bottom approach is where the technician starts by analyzing the highest level of the system and works its way down, and Implementing a solution is where the technician applies a solution to the problem after identifying it.

How can the answer be anything but starting the troubleshooting from bottom-up?

The bottom-up approach to troubleshooting a networking problem starts with the physical components of the network and works its way up the layers of the OSI model. IP pinging is closer to the line (bottom) than DNS. If the ping fails DNS won't work.