220-1201 Practice Question: A user's laptop intermittently loses connection…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

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  Ping

  Why it's wrong here

  Ping is a network utility used to test the reachability of a host on an Internet Protocol (IP) network and to measure the round-trip time for messages sent from the originating host to a destination computer. While it can identify general network connectivity issues, latency, and packet loss, it operates at the network layer and does not provide insight into the physical layer characteristics of a wireless connection, such as Wi-Fi channel utilization, signal strength, or interference from other access points. Therefore, it cannot diagnose the root cause of intermittent wireless disconnections stemming from channel congestion or overlapping signals.

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  Tracert

  Why it's wrong here

  Tracert (Traceroute) is a diagnostic tool that displays the path and measures transit delays of packets across an Internet Protocol (IP) network. It identifies the sequence of routers a packet traverses to reach a destination, providing hop-by-hop latency information. However, Tracert operates at the network layer and is designed to diagnose issues related to routing paths between different network segments or the internet, not the local wireless link between a client and an access point. It offers no visibility into Wi-Fi channel conditions, signal quality, or local interference affecting the wireless connection.

• ✓

  Wi-Fi analyzer

  Why this is correct

  A Wi-Fi analyzer is the most appropriate tool for diagnosing intermittent wireless connection issues because it provides detailed insights into the local wireless environment. This software or hardware tool scans for all active Wi-Fi networks, displaying crucial information such as signal strength (RSSI), channel usage, security types, and the presence of overlapping channels from neighboring access points. By visualizing channel congestion and interference, a technician can identify underutilized channels and reconfigure the access point to improve stability and performance for the user's laptop.

• ✗

  Cable tester

  Why it's wrong here

  A cable tester is a specialized hardware device designed to verify the integrity and proper wiring of physical network cables, such as Ethernet (RJ-45) or coaxial cables. It checks for continuity, open circuits, shorts, crossed pairs, and split pairs within the cable itself. Since the user's laptop is experiencing intermittent wireless connection loss, a cable tester is entirely irrelevant as it cannot interact with or analyze radio frequency signals, Wi-Fi channels, or any aspect of a wireless local area network (WLAN) environment.

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