220-1201 Practice Test 10 — 10 Questions

Question 1

A client reports that their new 802.11ac laptop cannot connect to the office Wi-Fi, while older 802.11n devices work fine. The access point is a dual-band model. Which of the following is the MOST likely reason?

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

Accepted Answer

The 5 GHz radio on the access point is disabled.. The 802.11ac standard operates exclusively on the 5 GHz band. While most 802.11ac devices are dual-band and support 2.4 GHz (802.11n/g/b) for backward compatibility, a new 802.11ac laptop might be configured to prioritize or exclusively attempt to connect to the 5 GHz network, or the user might be specifically trying to connect to a 5 GHz SSID. If the access point's 5 GHz radio is disabled, the 802.11ac laptop would be unable to connect to its preferred 5 GHz network. Older 802.11n clients, which can operate on both 2.4 GHz and 5 GHz, would still be able to connect using the 2.4 GHz radio (which must be active since they are working). This scenario makes the disabled 5 GHz radio the most likely cause for the 802.11ac laptop's inability to connect to the expected Wi-Fi service.

Answer

The laptop's Wi-Fi antenna is damaged.

Answer

The laptop's drivers are not compatible with 802.11n.

Answer

The access point is set to 802.11b-only mode.

Question 2

A user complains that their smartphone's battery drains quickly even when idle. You run diagnostics and find the battery health is at 82%. The device is two years old. Which hardware servicing action is most appropriate?

Accepted Answer

Replace the battery with a new OEM battery.. This question tests battery replacement thresholds. A battery health below 80-85% often indicates significant degradation, causing poor runtime. Replacing the battery restores normal battery life. Software optimization may help but is secondary to hardware replacement.

Answer

Calibrate the battery by fully draining and recharging.

Answer

Update the operating system to the latest version.

Answer

Disable all background apps and notifications.

Question 3

A customer complains that their smartphone's mobile hotspot stops working after a few minutes. They are using a prepaid data plan. What is the most likely cause?

Accepted Answer

The carrier's prepaid plan restricts hotspot usage or throttles data.. This scenario highlights carrier restrictions on tethering. Many prepaid plans limit hotspot usage or throttle data after a certain amount, causing the hotspot to disconnect or slow down.

Answer

The smartphone's battery saver mode is turning off the hotspot.

Answer

The connected device is out of Bluetooth range.

Answer

The smartphone's Wi-Fi antenna is overheating.

Question 4

A technician is setting up a small office with 15 devices and needs to assign private IP addresses. The router's LAN interface is 10.0.0.1/24. Which of the following is a valid IP address for a workstation on this network?

Accepted Answer

10.0.0.50. (10.0.0.50) is correct because the router's LAN interface is configured with the IP address 10.0.0.1 and a subnet mask of /24 (255.255.255.0). This defines the network as 10.0.0.0/24, which includes usable host addresses from 10.0.0.1 to 10.0.0.254. 10.0.0.50 falls within this valid host range.

Answer

10.0.1.50

Answer

10.0.0.0

Answer

10.0.0.255

Question 5

A technician is configuring a new router for a client who has a fiber-optic internet connection. Which type of interface is most likely used to connect the router to the ISP's ONT (Optical Network Terminal)?

Accepted Answer

Ethernet (RJ45). The correct interface is Ethernet (RJ45) because the ONT typically converts the fiber-optic signal from the ISP into a standard electrical Ethernet signal, which is then delivered to the customer's router via a copper Ethernet cable. Most residential and small business fiber installations use an RJ45 port on the ONT to connect to the router's WAN interface, supporting speeds up to 1 Gbps or higher using 1000BASE-T.

Answer

Coaxial (F-type)

Answer

RJ11 (phone jack)

Answer

Fiber patch cable (LC connector)

Question 6

A user complains that their laptop frequently disconnects from the Wi-Fi when they move from their desk to a conference room 30 meters away. The office uses a single wireless access point (AP). Which network type is being used, and what is the most likely cause of the disconnection?

Accepted Answer

Infrastructure mode WLAN; the AP's signal strength is insufficient at that distance.. The scenario describes an infrastructure mode WLAN, where devices connect through a single access point. The disconnection at 30 meters is most likely due to insufficient signal strength from that AP, as typical consumer-grade Wi-Fi (e.g., 2.4 GHz) has an effective indoor range of about 30–40 meters, and obstacles or interference can further reduce it.

Answer

Ad hoc network; the laptop is trying to connect directly to other devices.

Answer

Mesh network; the laptop is roaming between mesh nodes.

Answer

PAN network; the laptop is using Bluetooth, which has limited range.

Question 7

A technician is troubleshooting a laptop that connects to a Wi-Fi network but gets a 'No Internet, Secured' message. The laptop has a static IP address configured. What is the most likely issue?

Accepted Answer

The laptop's static IP address is not in the same subnet as the router.. A static IP address that is not in the same subnet as the router prevents the laptop from communicating with the default gateway. Even though the Wi-Fi association succeeds (hence 'Secured'), the laptop cannot route traffic to the internet because it cannot reach the router's IP address. This mismatch causes the 'No Internet' message while the link-layer connection remains intact.

Answer

The Wi-Fi network's SSID is hidden.

Answer

The laptop's Wi-Fi driver is corrupted.

Answer

The router's DHCP server is disabled.

Question 8

A network administrator needs to connect two switches that are 200 meters apart. The connection must support 1 Gbps speed. The administrator has Cat5e cable available. However, Cat5e is only rated for 100 meters at 1 Gbps. Which device can be used to extend the distance without replacing the cable?

Accepted Answer

Network extender (repeater). A network extender (repeater) regenerates the electrical signal, allowing a Cat5e segment to exceed the 100-meter distance limitation while maintaining 1 Gbps speed. Since the administrator already has Cat5e cable and only needs to extend the reach, a repeater operates at Layer 1 to boost the signal without replacing the cable.

Answer

Media converter

Answer

PoE injector

Answer

Load balancer

Question 9

A user reports that their smartphone can connect to Wi-Fi at home but not at the office. Other devices connect fine to the office Wi-Fi. What is the most likely cause?

Accepted Answer

The smartphone has the wrong Wi-Fi password or security type saved.. The smartphone can connect at home but not at the office, while other devices connect fine to the office Wi-Fi. This points to a client-side configuration mismatch, most likely an incorrect password or security type (e.g., WPA2 vs. WPA3) saved on the phone. A damaged antenna or out-of-range router would affect all connections, and a static IP conflict would typically cause intermittent issues, not a complete failure to associate.

Answer

The smartphone's Wi-Fi antenna is damaged.

Answer

The office Wi-Fi router is out of range.

Answer

The smartphone's IP address is static and conflicting.

Question 10

A user complains that text on their new 27-inch 4K monitor appears very small and hard to read. The display is set to its native resolution. What is the most effective way to make text readable without sacrificing image quality?

Accepted Answer

Increase the display scaling percentage in OS settings. At the native 4K resolution (3840x2160), pixels are densely packed, making UI elements physically tiny. Increasing the display scaling percentage (e.g., to 150% or 200%) instructs the OS to render text and icons at a larger logical size while keeping the monitor at its native resolution, preserving full sharpness and detail. This is the standard solution for high-DPI displays.

Answer

Reduce the screen resolution to 1920x1080

Answer

Replace the monitor with a lower-resolution model

Answer

Adjust the monitor's physical sharpness setting