Practice Test GeeksACMT - Apple Certified Macintosh Technician Practice Test
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Networking & Connectivity Flashcards

6 cards from real ACMT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Networking & Connectivity flashcards as text

  1. A customer's MacBook cannot connect to Wi-Fi after a logic board replacement. What should the technician check first?

    Answer: Verify the Wi-Fi antenna cables are reconnected to the AirPort card on the logic board

    Wi-Fi antenna cables are frequently disconnected during logic board replacement; reattaching them is the first step when Wi-Fi fails after such a repair.

  2. Which tool in macOS provides detailed diagnostic information about Wi-Fi signal strength, noise, and channel?

    Answer: Wireless Diagnostics (Option + click Wi-Fi menu icon)

    Option-clicking the Wi-Fi menu icon provides signal strength and channel info; opening Wireless Diagnostics gives a full suite of Wi-Fi analysis tools.

  3. A Mac is connected via Ethernet but cannot reach the internet. The network shows 'Self-Assigned IP.' What does this indicate?

    Answer: The Mac failed to obtain an IP address from the DHCP server, so it assigned itself a 169.254.x.x address

    A 169.254.x.x self-assigned IP (APIPA) indicates DHCP failure; the Mac could not reach the DHCP server, so it assigned itself a link-local address that does not route to the internet.

  4. Which command-line tool in macOS Terminal tests basic network connectivity by sending ICMP echo requests?

    Answer: ping

    'ping' sends ICMP echo requests to a target host and reports round-trip time and packet loss, making it the fundamental tool for testing basic network reachability.

  5. A MacBook Pro with Thunderbolt 3 does not recognize a connected Thunderbolt 3 external drive. What should the technician try first?

    Answer: Try a different Thunderbolt 3 cable and a different Thunderbolt port on the Mac

    Thunderbolt cables and ports can be faulty; testing with a different certified Thunderbolt 3 cable and an alternate port is the first non-invasive step.

  6. What is the purpose of the 'Renew DHCP Lease' button in System Settings > Network?

    Answer: It requests a new IP address from the DHCP server, resolving IP conflicts or expired lease issues

    Renewing the DHCP lease forces the Mac to request a fresh IP address assignment from the router, resolving issues caused by expired leases or IP address conflicts.