220-1201 Practice Test 38 — 15 Questions

Question 1

A technician is troubleshooting a slow network connection for a user. The user's computer has an IP address of 192.168.1.100, subnet mask 255.255.255.0, and default gateway 192.168.1.1. The technician runs a ping to the gateway and gets replies with times around 2ms. However, pinging a server at 192.168.1.200 results in times over 500ms. The technician checks the switch and finds that the port for the user's computer is set to 10 Mbps half-duplex, while the computer's NIC is set to auto-negotiation. What is the most likely cause of the high latency?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

There is a duplex mismatch between the switch port and the NIC.. The switch port is manually configured to 10 Mbps half-duplex, while the computer's NIC is set to auto-negotiation. When one side is hard-coded and the other is set to auto-negotiation, the auto-negotiating side will detect the speed (10 Mbps) but fall back to half-duplex as a default, resulting in a duplex mismatch. This mismatch causes frame collisions and retransmissions, dramatically increasing latency (500+ ms) while local pings to the gateway remain low because the gateway is on the same switch and not affected by the mismatch.

Answer

The server at 192.168.1.200 is overloaded.

Answer

The user's computer has a faulty network cable.

Answer

The default gateway is misconfigured.

Question 2

A small office uses a network switch with 24 RJ45 ports to connect all workstations. The switch is connected to the router via a single uplink port. Users report intermittent network drops. The technician suspects a faulty cable between the switch and router. Which tool should be used to test the cable?

Accepted Answer

Cable tester. A cable tester verifies continuity, wiring, and signal integrity in Ethernet cables. This is the correct tool to diagnose a faulty physical connection between the switch and router.

Answer

Tone generator and probe

Answer

Loopback plug

Answer

Multimeter

Question 3

A technician is deploying a fleet of tablets for field workers. The tablets need to connect to a cellular network for data, but the company wants to minimize data usage. Which setting should the technician configure on each tablet?

Accepted Answer

Enable data saver mode.. Enabling Data Saver mode restricts background data usage and limits non-essential app activity, directly reducing cellular data consumption. This is the most appropriate setting for field workers who need to stay connected but minimize data costs, as it works at the OS level to restrict background syncs and downloads without disabling connectivity.

Answer

Disable Wi-Fi.

Answer

Enable airplane mode.

Answer

Set the preferred network type to 5G.

Question 4

A technician is deploying a wireless network in a large warehouse with metal shelving. The goal is to provide seamless roaming for handheld scanners. Which technology should the technician implement to ensure clients quickly switch between access points without dropping connections?

Accepted Answer

Enable 802.11r (Fast Roaming) on the access points. 802.11r, also known as Fast BSS Transition or Fast Roaming, enables clients to authenticate and reassociate with a new access point using a cached PMK (Pairwise Master Key) from the initial full authentication, reducing the handshake process from four EAP frames to two. In a warehouse with metal shelving causing signal attenuation, this minimizes the time clients spend scanning and reconnecting, ensuring seamless roaming for handheld scanners without dropping connections.

Answer

Use a wireless mesh topology

Answer

Configure beamforming on each access point

Answer

Deploy MIMO antennas

Question 5

During a network upgrade, a technician configures a new VoIP phone to use a dedicated VLAN for voice traffic. After connecting the phone to a switch port configured for voice VLAN, the phone powers on but cannot register with the call manager. The switch port is set to trunk mode. Which protocol is essential for the phone to obtain its VLAN assignment?

Accepted Answer

LLDP. Link Layer Discovery Protocol (LLDP) is essential because it allows the switch to inform the VoIP phone of the configured voice VLAN ID. When a switch port is in trunk mode, the phone uses LLDP (specifically LLDP-MED) to learn which VLAN to tag its voice traffic with, enabling it to communicate with the call manager. Without LLDP, the phone would not know which VLAN to use and would fail to register.

Answer

STP

Answer

RSTP

Answer

GVRP

Question 6

A technician is troubleshooting a network where one workstation intermittently loses connectivity. The cable run is 85 meters and passes through a conduit with several sharp bends. The cable tester shows intermittent shorts. Which cabling issue is most likely?

Accepted Answer

The cable is being pinched or crushed in the conduit.. The cable tester indicates intermittent shorts, which are classic symptoms of physical damage to the cable. The 85-meter run with sharp bends in the conduit creates a high risk of the cable being pinched or crushed, leading to conductor contact or insulation breakdown. This physical stress causes intermittent connectivity issues, not a length or interference problem.

Answer

The cable is too long for the network standard.

Answer

The cable is unshielded and picking up EMI.

Answer

The cable is a flat patch cable used for a permanent run.

Question 7

A small office uses a wireless printer that supports Wi-Fi Direct. Several employees want to print from their smartphones without connecting to the company's wireless network. What is the simplest way to achieve this?

Accepted Answer

Use the printer's Wi-Fi Direct feature to connect each phone directly.. Wi-Fi Direct allows devices to connect peer-to-peer without a traditional wireless access point. Since the printer supports Wi-Fi Direct, each smartphone can connect directly to the printer's own Wi-Fi Direct network, enabling printing without joining the company's wireless network. This is the simplest method because it requires no additional hardware or network configuration.

Answer

Connect the printer to the office router via Ethernet.

Answer

Enable the printer's Bluetooth and pair each phone.

Answer

Install a USB hub and connect all phones to the printer.

Question 8

A technician is configuring a conference room where a laptop must wirelessly display its screen to a 4K projector without using any cables. The projector supports Miracast. What must the technician verify on the laptop?

Accepted Answer

The laptop supports Miracast and Wi-Fi is enabled.. Miracast uses Wi-Fi Direct to establish a peer-to-peer wireless link between devices, so the laptop must support Miracast and have Wi-Fi enabled. It does not require a shared Wi-Fi network or Bluetooth, as Miracast creates its own direct connection for screen mirroring.

Answer

The laptop has Bluetooth enabled.

Answer

The laptop is connected to the same Wi-Fi network as the projector.

Answer

The laptop has an HDMI port.

Question 9

A technician is setting up a new tablet for a field worker who needs to capture signatures from customers. The tablet has a standard USB-C port. Which accessory is most appropriate for this task?

Accepted Answer

A capacitive stylus with a fine tip.. A capacitive stylus with a fine tip (Option B) is the most appropriate accessory because it allows the field worker to accurately capture signatures on the tablet's touchscreen. Capacitive styluses work by mimicking the electrical properties of a human finger, and a fine tip provides the precision needed for signature capture without relying on a digitizer or active pen protocol.

Answer

A Bluetooth keyboard for typing notes.

Answer

A USB-C to HDMI adapter for external display.

Answer

A screen protector to prevent scratches.

Question 10

A company deploys a new file server that uses SMB protocol for file sharing. Users on Windows 10 can connect to the server, but users on older Windows 7 machines cannot. The server is configured to require SMB 3.0 encryption. Which protocol version mismatch is causing the issue?

Accepted Answer

The server requires SMB 3.0, which Windows 7 does not support.. The server requires SMB 3.0 encryption, but Windows 7 natively supports only up to SMB 2.1. Since SMB 3.0 introduced mandatory encryption and other features not present in SMB 2.1, the Windows 7 client cannot negotiate the required protocol version, causing the connection to fail. Windows 10 supports SMB 3.0 and later, so it connects successfully.

Answer

The server requires SMB 1.0, which Windows 7 does not support by default.

Answer

The server requires SMB 2.0, which Windows 7 does not support.

Answer

The server requires SMB 3.1.1, which Windows 10 also does not support.

Question 11

A user's smartphone can send and receive text messages but cannot access the internet over cellular data. Wi-Fi internet works fine. Which setting is most likely misconfigured?

Accepted Answer

The APN settings are incorrect.. The APN (Access Point Name) defines the gateway between the mobile network and the internet. If the APN settings are incorrect or missing, the device can still register on the cellular network for voice and SMS (which use the control plane) but cannot establish a data session (user plane) because the packet data network gateway cannot be reached. Wi-Fi internet works fine because it bypasses the cellular data path entirely.

Answer

The Wi-Fi hotspot is enabled.

Answer

Bluetooth is turned on.

Answer

The device is in roaming mode.

Question 12

A technician is setting up a new tablet for a sales team member who travels frequently. The user needs to access the internet via cellular data and also connect to a Bluetooth headset. What should the technician configure first?

Accepted Answer

Insert the SIM card and configure the cellular APN settings.. The tablet must first have cellular connectivity established before any other network-dependent features can function. Inserting the SIM card and configuring the Access Point Name (APN) settings is the prerequisite step because the APN defines the gateway between the cellular network and the internet, including required authentication and packet data protocol (PDP) context parameters. Without a correctly configured APN, the tablet cannot obtain an IP address or route data over the cellular carrier's network, making Bluetooth headset pairing or Wi-Fi settings irrelevant for internet access.

Answer

Enable airplane mode to prevent interference.

Answer

Pair the Bluetooth headset first to ensure audio works.

Answer

Disable Wi-Fi to force cellular data usage.

Question 13

A user reports that their laptop can see several neighboring Wi-Fi networks but cannot see their own office's SSID, which is a 5 GHz-only network. Other users in the same office can connect without issue. What is the most likely cause?

Accepted Answer

The laptop only supports 2.4 GHz Wi-Fi.. The user's laptop can see neighboring 2.4 GHz networks but not the office's 5 GHz-only SSID, while other users connect fine. This indicates the laptop's wireless adapter lacks 5 GHz support, making option C correct because 5 GHz-only networks are invisible to 2.4 GHz-only adapters.

Answer

The router's SSID broadcast is disabled.

Answer

The laptop's wireless adapter is set to airplane mode.

Answer

The office router is using WPA3 encryption.

Question 14

A technician is troubleshooting a VoIP phone that cannot register with the SIP server. The phone has a valid IP address and can ping the server. Which port should be verified as open for SIP traffic?

Accepted Answer

Port 5060. SIP (Session Initiation Protocol) uses UDP or TCP port 5060 by default for signaling between endpoints and the SIP server. Since the phone has a valid IP and can ping the server, the issue is likely a firewall blocking port 5060, preventing registration.

Answer

Port 80

Answer

Port 443

Answer

Port 1720

Question 15

A technician is installing a new graphics card in a workstation. The card requires two 8-pin PCIe power connectors, but the power supply only has one 8-pin and one 6-pin PCIe cable. What is the best solution?

Accepted Answer

Use the 8-pin cable and the 6+2 pin cable with the 2-pin section attached. A 6+2 pin PCIe power cable can be used as either a 6-pin or 8-pin connector. The technician can use the 8-pin cable and the 6+2 pin cable (with the 2-pin attached) to provide two 8-pin connections.

Answer

Use the 6-pin cable alone, leaving one power slot empty

Answer

Use a Molex to 8-pin adapter

Answer

Replace the power supply with one that has two 8-pin connectors