Exam N10-008 topic 1 question 388 discussion

A. Network performance baselines if the device configuration is wrong at first place you will know it BUT it took eight-hour period although Device configuration review is easier to check ,In summary, while checking device configurations can be relatively easy due to accessibility and directness, it may not always be the most effective first step in troubleshooting network outages caused by newly installed hardware. Understanding network performance baselines provides context that enhances the effectiveness of any subsequent configuration reviews.

If having outages after installing new hardware. If you have options for checking performance baselines, or the configuration review document first, it will be faster to check the configuration review first. Configuration review identifies the weaknesses, threats and vulnerabilities in the network devices and resources, by allocating the threat rating to each of the configuration so that appropriate controls may be applied to reach the higher level of security. https://www.linkedin.com/pulse/importance-configuration-review-graxoconsulting#:~:text=Configuration%20review%20identifies%20the%20weaknesses,the%20higher%20level%20of%20security.

D. Device configuration review Reviewing the configuration of the newly installed hardware is crucial to identify any misconfigurations or conflicts that might be causing the outages. This includes checking the device settings, interfaces, IP addresses, routing configurations, and any other relevant parameters. By examining the device configuration, the technician can pinpoint issues related to the new hardware that may be impacting network performance. While network performance baselines, VLAN assignments, and routing tables are important considerations, they come into play after the initial review of the device configuration to further investigate and optimize the network. The immediate focus is on the configuration of the newly installed hardware causing the outages.

When a WAN technician identifies newly installed hardware causing outages, the FIRST consideration should be D. Device configuration review. Reviewing the configuration of the newly installed hardware will help identify any misconfigurations, conflicts, or errors that might be causing the outages. By examining the settings and setup of the hardware, the technician can pinpoint any discrepancies that could lead to network disruptions and address them accordingly. Once the configuration review is completed and any issues are resolved, subsequent steps such as checking network performance baselines, VLAN assignments, and routing tables can be taken to ensure the smooth operation of the WAN.

The answer is D for device config review. The keyword here is hardware being reviewed, he will be checking devices alone first before troubleshooting anything else.