220-1201 Practice Test 46 — 15 Questions

Question 1

A customer wants to connect a laptop to a 4K TV for a presentation. The laptop has an HDMI 1.4 port, and the TV supports HDMI 2.0. What is the maximum resolution and refresh rate the customer can expect?

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

Accepted Answer

4K at 30Hz. HDMI 1.4 is limited to a maximum data rate of 10.2 Gbps, which supports 4K (3840×2160) only at 30Hz due to insufficient bandwidth for 60Hz. The TV's HDMI 2.0 capability does not increase the laptop's output; the connection operates at the lower version's capabilities. Thus, the maximum achievable is 4K at 30Hz.

Answer

4K at 60Hz

Answer

1080p at 120Hz

Answer

1440p at 60Hz

Question 2

A user reports that their internet connection is extremely slow, and they notice the modem's 'DSL' light is blinking. They have a DSL connection. What does the blinking DSL light indicate?

Accepted Answer

The modem is trying to establish a DSL sync.. A blinking DSL light on a modem indicates that the modem is actively attempting to establish synchronization (sync) with the DSLAM (Digital Subscriber Line Access Multiplexer) at the provider's central office. This process involves training the line to negotiate a stable connection speed and protocol, such as ADSL or VDSL, and typically takes 30–60 seconds. A solid DSL light confirms successful sync, while a blinking light means the handshake is still in progress or has failed.

Answer

The modem is receiving data.

Answer

The modem is not connected to the phone line.

Answer

The modem has a firmware error.

Question 3

A home user complains that their internet is extremely slow during peak evening hours, but speed tests show fast results late at night. They have a cable modem connection. What is the most likely cause of this issue?

Accepted Answer

Bandwidth congestion from neighbors. Cable internet uses a shared bandwidth model where multiple homes in the same neighborhood connect to a common node. During peak evening hours, increased simultaneous usage from neighbors causes congestion on this shared medium, resulting in slower speeds. Late-night tests are fast because fewer users are active, confirming the issue is contention-based rather than a hardware or throttling problem.

Answer

The modem is overheating

Answer

A faulty Ethernet cable

Answer

The ISP is throttling video streaming

Question 4

A small business has an inkjet printer that prints blank pages even though the ink cartridges are full. The printer passes the nozzle check pattern test. What should be done next?

Accepted Answer

Update the printer driver. The nozzle check pattern test passes, indicating the printhead and nozzles are functioning correctly. Blank pages with full ink carticles suggest a communication or driver issue. Updating the printer driver can resolve software conflicts or corruption that prevents data from being sent to the printer.

Answer

Replace the printhead

Answer

Check the paper type setting

Answer

Perform a power cycle

Question 5

A company deploys a new 802.11ax (Wi-Fi 6) access point to support high-density environments. Some older laptops with 802.11ac adapters cannot connect, while newer Wi-Fi 6 laptops work fine. The SSID is broadcast and security is set to WPA2. What is the MOST likely cause?

Accepted Answer

The access point is configured to use WPA3 only.. If the access point is configured to use WPA3 only, it will not accept WPA2 connections. Although the SSID is broadcast and security is set to WPA2, the AP enforces WPA3 for authentication, which older 802.11ac laptops do not support. Newer Wi-Fi 6 laptops support WPA3, so they connect successfully. This security protocol mismatch is the most likely cause of the issue.

Answer

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

Answer

The laptops have outdated firmware that does not support OFDMA.

Answer

The 5 GHz radio is disabled on the access point.

Question 6

A customer reports that their new Gigabit Ethernet connection is only achieving 100 Mbps speeds. The cable run is about 75 meters through a drop ceiling. You verify the switch and NIC are both Gigabit-capable. Which cable issue is most likely causing the speed limitation?

Accepted Answer

The cable is a Cat5 cable.. Cat5 cable is only rated for 100 Mbps over distances up to 100 meters. Since the run is 75 meters, the cable itself cannot support Gigabit Ethernet (1000BASE-T), which requires at least Cat5e cabling. The switch and NIC being Gigabit-capable confirms the bottleneck is the cable category.

Answer

The cable is a Cat5e patch cable.

Answer

The cable is a Cat6a cable.

Answer

The cable is a Cat6 cable.

Question 7

A technician is setting up a dual-monitor configuration for a financial analyst who needs to see many columns of data side by side. The user wants the sharpest possible text and the highest pixel density. Which type of display panel should the technician recommend?

Accepted Answer

IPS (In-Plane Switching) panel. IPS panels are the correct choice because they offer superior color accuracy, wide viewing angles, and high pixel density, which are essential for a financial analyst viewing many columns of data side by side. Unlike TN or VA panels, IPS technology maintains consistent brightness and color across the entire screen, ensuring sharp text without distortion when viewed from different angles. This makes IPS ideal for tasks requiring precise visual clarity and minimal color shift.

Answer

TN (Twisted Nematic) panel

Answer

VA (Vertical Alignment) panel

Answer

OLED (Organic Light Emitting Diode) panel

Question 8

A technician is troubleshooting a projector that displays a faint, ghost-like image even when no input source is connected. The projector has been in use for several years. What is the most likely cause?

Accepted Answer

The LCD panel has image burn-in. When a projector displays a faint, ghost-like image with no input source connected, the most likely cause is image burn-in on the LCD panel. This occurs because the liquid crystal material or polarizing layers have been permanently damaged by prolonged static image display, causing residual ghosting even when no signal is present. The fact that the projector is several years old further supports this, as burn-in is a cumulative effect over time.

Answer

The projector bulb is nearing the end of its life

Answer

The input cable is picking up interference

Answer

The projector's lens is dirty

Question 9

A technician is setting up a cloud-based application that must handle unpredictable spikes in user traffic. The application should automatically add more virtual servers during peak times and remove them when traffic decreases. Which cloud concept is this?

Accepted Answer

Elasticity. Elasticity is the ability to automatically scale resources up and down in response to demand. This is a key benefit of cloud computing, allowing cost efficiency while handling spikes. Scalability is a broader term that includes manual scaling, but elasticity specifically implies automatic, dynamic adjustment.

Answer

Scalability

Answer

High availability

Answer

Load balancing

Question 10

A client reports that their 5 GHz Wi-Fi connection works fine near the access point but drops out completely when they move to the next room, which has thick concrete walls. The 2.4 GHz band works throughout the house. Which of the following is the BEST solution?

Accepted Answer

Deploy a mesh Wi-Fi system with nodes in each room.. A mesh Wi-Fi system (Option C) is the best solution because it uses multiple nodes that communicate wirelessly to create a unified network, overcoming signal attenuation caused by thick concrete walls. Unlike a single access point or repeater, mesh nodes are placed in each room to ensure strong 5 GHz coverage by relaying traffic through dedicated backhaul channels, mitigating the high-frequency signal loss that occurs through dense materials.

Answer

Replace the access point with a higher-gain antenna.

Answer

Install a wireless repeater in the next room.

Answer

Switch the client to 2.4 GHz only.

Question 11

A customer reports that their smart TV, which is connected to the home network via Wi-Fi, can stream video from the internet but cannot access media files stored on a wired desktop PC in the same home. The TV and PC are on the same IP subnet. Which network type is most likely being used, and why does this cause the issue?

Accepted Answer

Peer-to-peer network; the TV and PC may be in different workgroups or have disabled file sharing.. A peer-to-peer (P2P) network typically uses workgroups and relies on each device to share resources individually. The TV can stream from the internet (using a client-server model with a remote streaming service) but cannot access local files because the PC may be in a different workgroup, have file sharing disabled, or require SMB/CIFS authentication that the TV cannot perform. Since both devices are on the same IP subnet, the issue is not routing but rather the lack of a centralized authentication or discovery mechanism, which is characteristic of a P2P network.

Answer

Client-server network; the TV cannot authenticate to the server.

Answer

Mesh network; the TV is connected to a different mesh node that blocks local traffic.

Answer

PAN network; the TV is using Bluetooth instead of Wi-Fi.

Question 12

A user reports that their computer cannot connect to the internet after being moved to a new office. The computer receives an IP address starting with 169.254.x.x. Which network service is failing to provide a valid IP configuration?

Accepted Answer

DHCP. The 169.254.x.x address is an Automatic Private IP Addressing (APIPA) address, assigned by Windows when a DHCP server is unreachable. Since the computer cannot obtain a valid IP configuration from a DHCP server, the DHCP service is failing. DNS, NAT, and ARP do not assign IP addresses dynamically.

Answer

DNS

Answer

NAT

Answer

ARP

Question 13

A user reports that their new laptop can connect to the office Wi-Fi but cannot access any internet sites. Other devices on the same network work fine. Which tool should be used first to verify the laptop's IP configuration?

Accepted Answer

ipconfig. The user's laptop can connect to Wi-Fi but cannot access internet sites, while other devices work fine. This points to a local configuration issue, not a network-wide problem. The `ipconfig` command (or `ifconfig` on Linux/macOS) is the first tool to verify the laptop's IP address, subnet mask, default gateway, and DNS server settings, as a misconfigured IP (e.g., APIPA address 169.254.x.x) or missing gateway would prevent internet access despite a successful Wi-Fi association.

Answer

Ping

Answer

Tracert

Answer

Netstat

Question 14

A technician is servicing a smartphone with a non-functional earpiece speaker during calls, but the loudspeaker works fine. After testing, the earpiece speaker itself is determined to be good. Which component is most likely faulty?

Accepted Answer

The mainboard audio IC (codec).. Since the earpiece speaker itself is confirmed good, the fault lies in the signal path between the mainboard and the speaker. The audio IC (codec) on the mainboard is responsible for processing and routing the audio signal specifically to the earpiece during calls. A failure in this component would prevent the earpiece from working while the loudspeaker, which uses a separate audio path, remains functional.

Answer

The charging port flex cable.

Answer

The SIM card slot.

Answer

The battery connector.

Question 15

A company's web server is accessible from the internet, but users report that they cannot upload files to it using a web browser. The server is configured to allow file uploads via HTTP. Which protocol is most likely being blocked by the firewall?

Accepted Answer

HTTP. The question states that the server is configured to allow file uploads via HTTP, yet users cannot upload files using a web browser. Since HTTP (port 80) is the protocol used for web browser uploads, the firewall is most likely blocking HTTP traffic. If HTTP were allowed, the uploads would succeed; the symptom points directly to HTTP being blocked.

Answer

HTTPS

Answer

FTP

Answer

SMTP