220-1201 Practice Test 31 — 15 Questions

Question 1

A user reports that their smartphone's wireless charging pad stops charging after a few minutes. The phone charges fine with a cable. The charging pad works with another phone. What is the most likely cause?

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

Accepted Answer

The phone case is too thick or contains metal.. Wireless charging relies on inductive coupling between the phone's receiver coil and the pad's transmitter coil. A thick case (especially one containing metal) can physically separate the coils beyond the effective range or cause eddy current losses that trigger thermal protection, causing the pad to shut down after a few minutes. The fact that the pad works with another phone and the phone charges via cable isolates the issue to the case, not the phone's battery or charging coil.

Answer

The charging pad is defective.

Answer

The phone's battery is faulty.

Answer

The phone's wireless charging coil is damaged.

Question 2

During a network upgrade, a technician installs a new wireless access point. Users on the new AP can access local resources but cannot browse the internet. The technician verifies that the AP has a valid IP address and can ping an external website by IP address. Which protocol is most likely misconfigured?

Accepted Answer

DNS. The technician can ping an external website by IP address, which confirms that IP routing, ICMP, and internet connectivity are working. However, users cannot browse the internet, which typically relies on domain name resolution. Since the AP has a valid IP address and local resources are accessible, the most likely misconfiguration is DNS, as the AP or its clients are not receiving the correct DNS server addresses to resolve domain names to IP addresses.

Answer

DHCP

Answer

ICMP

Answer

ARP

Question 3

A technician is setting up internet for a rural home that is 5 miles from the nearest town. The home has no cable TV or phone line. Which internet connection type is most feasible?

Accepted Answer

Satellite. Satellite internet is the most feasible option because the home is 5 miles from the nearest town with no cable TV or phone line infrastructure. Satellite requires only a clear line of sight to the sky, making it independent of terrestrial cabling. Cable broadband, DSL, and fiber optic all depend on physical infrastructure (coaxial cable, twisted-pair copper, or fiber) that does not extend to this remote location.

Answer

Cable broadband

Answer

DSL

Answer

Fiber optic

Question 4

A customer reports that their smartphone connects to Wi-Fi at home but cannot connect to the corporate Wi-Fi network at their office. The office uses WPA2-Enterprise with 802.1X authentication. What is the most likely reason for the connectivity failure?

Accepted Answer

The phone does not have the correct 802.1X credentials configured for the corporate SSID.. The corporate network uses WPA2-Enterprise with 802.1X authentication, which requires the smartphone to have the correct 802.1X credentials (e.g., username/password or certificate) configured for that specific SSID. Without these credentials, the phone cannot complete the EAP (Extensible Authentication Protocol) handshake with the RADIUS server, even though it can connect to a home WPA2-Personal network. Option C directly addresses this missing configuration.

Answer

The phone's Wi-Fi antenna is damaged.

Answer

The corporate network requires a different security protocol like WEP.

Answer

The phone is out of range of the corporate access point.

Question 5

A technician is troubleshooting a network where users can access the internet but cannot connect to a specific internal application server by its hostname. Pinging the server's IP address works. The DNS server is configured correctly for external names. What is the most likely cause?

Accepted Answer

The DNS server does not have an A record for the application server. Since users can access the internet and ping the server by IP, the network connectivity and external DNS resolution are working. The failure to resolve the internal server's hostname indicates that the DNS server lacks an A record for that specific hostname, preventing name-to-IP resolution for internal resources.

Answer

The DHCP server is out of IP addresses

Answer

NAT is misconfigured for the internal network

Answer

The proxy server is blocking the hostname

Question 6

A small office is moving to a new location and needs a dedicated, symmetrical internet connection with a guaranteed service level agreement (SLA). Which type of internet connection should be installed?

Accepted Answer

Fiber optic. Fiber optic connections provide dedicated, symmetrical bandwidth with the highest reliability and are the only option among these that typically offers a guaranteed SLA for uptime and performance. Unlike shared media (cable) or distance-limited technologies (DSL), fiber uses light signals over glass strands, ensuring consistent speeds and low latency that meet business-grade requirements.

Answer

Cable broadband

Answer

DSL

Answer

Satellite

Question 7

A technician is configuring a kiosk tablet that must connect to a wired Ethernet network for security reasons. The tablet only has a USB-C port. The network drop provides an RJ45 connection. Which of the following should the technician use to achieve a wired connection?

Accepted Answer

USB-C to Ethernet adapter. The tablet has a USB-C port and needs to connect to an RJ45 Ethernet network. A USB-C to Ethernet adapter directly converts the USB-C signal to a standard RJ45 Ethernet connection, providing a wired network interface without additional adapters or protocol conversions. This is the simplest and most reliable solution for achieving a wired Ethernet connection from a USB-C-only device.

Answer

USB-C to HDMI adapter

Answer

USB-C to USB-A adapter with a USB Ethernet dongle

Answer

USB-C to DisplayPort adapter

Question 8

A client reports that their new IoT smart bulb can be controlled from a smartphone app only when the phone is within 10 meters of the bulb. The bulb does not connect to the home Wi-Fi. Which network type is the smart bulb using?

Accepted Answer

Personal area network (PAN). The smart bulb uses a personal area network (PAN) because it communicates directly with the smartphone over a short-range wireless technology, such as Bluetooth or Zigbee, without connecting to a home Wi-Fi router. The 10-meter range limitation is a key characteristic of PAN technologies, which are designed for device-to-device communication within a few meters to about 10 meters. This contrasts with WLAN, which would require Wi-Fi and a router for broader coverage.

Answer

Wireless local area network (WLAN)

Answer

Metropolitan area network (MAN)

Answer

Wide area network (WAN)

Question 9

A user's smartphone intermittently drops Wi-Fi connection when the device is moved from one room to another. The home uses a single Wi-Fi router. The technician suspects the issue is related to the device's power management. Which setting should be adjusted to maintain a stable connection?

Accepted Answer

Disable 'Wi-Fi power saving mode' in the advanced Wi-Fi settings.. Disabling 'Wi-Fi power saving mode' prevents the device from reducing radio power or entering low-power states when moving between rooms, which can cause intermittent signal drops. This setting directly addresses the power management behavior that leads to unstable connections during transitions.

Answer

Enable 'Wi-Fi calling' to offload calls to cellular.

Answer

Set the device to 'Keep Wi-Fi on during sleep' to 'Always'.

Answer

Change the Wi-Fi frequency band from 5 GHz to 2.4 GHz.

Question 10

A user complains that their tablet's battery drains very quickly, even when not in use. The device is one year old and was working normally until last week. Which hardware component is most likely failing?

Accepted Answer

The battery has degraded or is failing.. A battery that drains quickly even when the device is idle typically indicates that the battery's internal chemistry has degraded, leading to increased self-discharge and reduced capacity. After one year of use, lithium-ion batteries naturally lose about 20% of their capacity, and a sudden failure can occur due to a defective cell or internal short. This matches the symptom of normal operation followed by rapid drain, as the battery can no longer hold a charge effectively.

Answer

The charging port is loose.

Answer

The power management IC is faulty.

Answer

The screen brightness is set too high.

Question 11

A company is deploying 10 Gigabit Ethernet in a data center and needs cabling that supports this speed over a distance of 50 meters. Which cable type should be selected?

Accepted Answer

Cat6a. Cat6a (Augmented Category 6) cabling is the correct choice because it supports 10 Gigabit Ethernet (10GBASE-T) over distances up to 100 meters, easily covering the required 50 meters. Cat6a uses thicker insulation and tighter twists to reduce alien crosstalk, which is critical for maintaining signal integrity at 10 Gbps over longer runs.

Answer

Cat5e

Answer

Cat6

Answer

Cat3

Question 12

A customer reports that their laptop's touchpad is unresponsive after they spilled a small amount of liquid on the keyboard. The laptop still powers on and the keyboard works. What is the most likely issue?

Accepted Answer

The touchpad ribbon cable is damaged or disconnected.. The most likely issue is that the liquid spill has physically damaged or disconnected the touchpad's ribbon cable, which connects the touchpad to the motherboard. Since the keyboard still works, the spill likely affected only the touchpad's dedicated connection path, not the main keyboard controller or system board. A damaged ribbon cable is a common consequence of liquid ingress, even if the laptop powers on normally.

Answer

The touchpad driver is corrupted.

Answer

The battery is swollen and pressing on the touchpad.

Answer

The touchpad is disabled in the BIOS.

Question 13

A customer reports that their external monitor connected via HDMI flickers intermittently. They have tried a different HDMI cable and a different monitor, but the issue persists. The laptop display works fine. Which component is most likely causing the problem?

Accepted Answer

The laptop's HDMI port. Since the issue persists after swapping both the HDMI cable and the external monitor, the problem is isolated to the laptop's HDMI port. A faulty or damaged HDMI port can cause intermittent signal loss due to poor physical contact, bent pins, or internal solder fractures, leading to flickering. The laptop's internal display works fine, ruling out the graphics driver as the primary cause.

Answer

The laptop's graphics driver

Answer

The HDMI cable

Answer

The external monitor

Question 14

A technician is setting up a small office with five computers that need to share files and a printer. The office is in a single room, and no internet access is required yet. Which network type should be created?

Accepted Answer

Local Area Network (LAN). A Local Area Network (LAN) is the correct choice because it connects devices within a limited physical area, such as a single room or office, enabling file sharing and printer access without requiring internet connectivity. LANs typically use Ethernet (IEEE 802.3) or Wi-Fi (IEEE 802.11) to provide high-speed, low-latency communication between the five computers and the printer, making it ideal for this small office setup.

Answer

Personal Area Network (PAN)

Answer

Wide Area Network (WAN)

Answer

Metropolitan Area Network (MAN)

Question 15

A small business owner wants to use a smartphone as a point-of-sale (POS) terminal for credit card payments. They ask which accessory is essential for this setup. What should you recommend?

Accepted Answer

A magnetic stripe reader that plugs into the headphone jack.. A magnetic stripe reader that plugs into the headphone jack is the essential accessory for using a smartphone as a POS terminal for credit card payments. This reader captures the magnetic stripe data from the card and transmits it to the smartphone via the analog audio interface, enabling the payment processing app to read the card information. Without this reader, the smartphone cannot physically read the magnetic stripe, which is the most common method for swiping credit cards at a POS.

Answer

A portable Bluetooth speaker for transaction alerts.

Answer

A rugged case to protect the phone from drops.

Answer

A high-capacity power bank for extended use.