220-1201 Practice Test 2 — 25 Questions

Question 1

A user reports that their laptop's Bluetooth mouse stops working after the laptop wakes from sleep. The mouse works fine after a reboot. The technician suspects a driver issue. Which of the following steps should the technician take to resolve this without disrupting other Bluetooth devices?

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

Accepted Answer

Disable and re-enable the Bluetooth adapter in Device Manager.. Disabling and re-enabling the Bluetooth adapter in Device Manager resets the Bluetooth stack without a full reboot, often restoring functionality after sleep. This tests advanced troubleshooting of Bluetooth power management issues.

Answer

Uninstall the mouse driver and reboot.

Answer

Change the mouse's Bluetooth pairing to a different channel.

Answer

Update the laptop's BIOS to the latest version.

Question 2

A user reports that their smartphone's screen protector has a large bubble in the center and the edges are lifting. They installed it themselves two days ago. What is the most likely cause of this issue?

Accepted Answer

The user did not properly clean the screen before installation.. Screen protector bubbles and lifting edges are almost always caused by improper installation, such as not cleaning the screen thoroughly or not aligning the protector correctly. Even high-quality protectors will fail if the surface isn't perfectly clean and dust-free. The correct answer is improper installation.

Answer

The screen protector is incompatible with the phone model.

Answer

The phone's screen has a manufacturing defect.

Answer

The screen protector is a tempered glass type, which is prone to bubbles.

Question 3

A user has a laptop that supports Thunderbolt 3 and wants to connect two external 4K monitors at full resolution. They currently have a single USB-C hub that only supports DisplayPort over USB-C. What is the most likely limitation?

Accepted Answer

The hub does not support Thunderbolt 3 bandwidth.. Thunderbolt 3 supports up to 40 Gbps bandwidth, which is required to drive two 4K monitors at full resolution (60 Hz) over a single connection. A standard USB-C hub that only supports DisplayPort over USB-C is limited to USB 3.1 Gen 2 (10 Gbps) or USB 3.2 (20 Gbps) bandwidth, which is insufficient to carry two uncompressed 4K video streams simultaneously. Therefore, the hub itself is the bottleneck because it lacks Thunderbolt 3 controller and bandwidth capabilities.

Answer

The laptop's graphics card cannot drive two 4K monitors.

Answer

The monitors are not compatible with USB-C.

Answer

The user needs a USB-C to HDMI adapter for each monitor.

Question 4

A technician is troubleshooting a tablet that can connect to Bluetooth headphones but cannot connect to a Bluetooth keyboard. The keyboard is known to work with other devices. What should the technician check first?

Accepted Answer

Check if the keyboard is in pairing mode.. The keyboard is known to work with other devices, so the issue is likely that it is not in pairing mode. Bluetooth keyboards require a specific pairing mode (often initiated by holding a key combination) to be discoverable by the tablet. The technician should verify this first before exploring more complex troubleshooting steps.

Answer

Ensure the tablet's Bluetooth is turned on.

Answer

Update the tablet's operating system.

Answer

Reset the tablet's network settings.

Question 5

A small office is setting up a new VoIP phone system. The IT staff must run new cabling to each desk. Which cable type is most appropriate for connecting VoIP phones to the network?

Accepted Answer

Cat5e UTP. Cat5e UTP cable supports 1000BASE-T Ethernet at up to 100 meters, which is sufficient for VoIP phones that typically require 100 Mbps or 1 Gbps connectivity and can also receive Power over Ethernet (PoE) from a switch. This makes it the standard choice for new office cabling for VoIP deployments.

Answer

Coaxial cable

Answer

Fiber optic cable

Answer

Serial cable

Question 6

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 7

A user reports that their iPhone 13 will not charge when plugged into the USB-C port on their company-issued laptop, but it charges normally from the wall adapter. The laptop's USB-C port works with other devices. What is the most likely issue?

Accepted Answer

The laptop's USB-C port does not support Apple's Power Delivery (PD) protocol.. This is a classic power delivery negotiation issue. iPhones use a proprietary charging protocol over USB-C (or Lightning). The laptop's USB-C port may not support the Apple-specific charging profile or may not provide enough power (e.g., only 5V/0.5A). The wall adapter provides the correct voltage and current for the iPhone.

Answer

The iPhone's Lightning-to-USB-C cable is faulty.

Answer

The iPhone's charging port is clogged with debris.

Answer

The laptop's USB-C driver is outdated.

Question 8

A user reports that their iPhone's Maps app shows incorrect GPS location, often placing them several blocks away. Other location-based apps like Uber work correctly. What is the most likely cause?

Accepted Answer

The Maps app has been denied location access in Settings.. This scenario distinguishes between device-wide GPS issues and app-specific problems. Since other apps use location correctly, the issue is likely with the Maps app's configuration, such as incorrect location permissions or a software glitch within the app.

Answer

The iPhone's GPS antenna is damaged.

Answer

The iPhone is in Airplane Mode.

Answer

The Maps app needs to be reinstalled from the App Store.

Question 9

A technician is setting up a Windows 10 tablet for a field worker who needs to use a legacy line-of-business (LOB) app that only runs in 32-bit mode. The tablet has a 64-bit processor and Windows 10 Pro. How should the technician ensure the app runs correctly?

Accepted Answer

Install the app normally; 32-bit apps are supported on 64-bit Windows.. Windows 10 64-bit includes the Windows-on-Windows 64-bit (WOW64) subsystem, which provides full compatibility for 32-bit applications without any additional configuration. Since the legacy LOB app is a 32-bit x86 application, it will run natively under WOW64 on the 64-bit version of Windows 10 Pro. No virtualization, compatibility mode changes, or separate 64-bit version is required.

Answer

Install the app in a virtual machine running 32-bit Windows.

Answer

Enable Windows 8 compatibility mode for the app.

Answer

Download and install the 64-bit version of the app from the vendor.

Question 10

A user complains that they cannot access any websites, but they can ping other devices on the local network by IP address. The network uses DHCP and DNS servers. Which protocol is most likely failing?

Accepted Answer

DNS. This scenario isolates a DNS failure: local IP communication works, but name resolution fails. DNS translates domain names to IP addresses, so if it fails, web browsing by name will not work while local IP pings succeed.

Answer

DHCP

Answer

HTTP

Answer

ICMP

Question 11

A user reports that they cannot access a website hosted on a remote server. The technician finds that the firewall allows HTTP and HTTPS traffic, but the website uses a non-standard port. The user's browser shows 'connection refused'. Which tool can the technician use to verify if the remote port is open?

Accepted Answer

Telnet. Telnet can be used to test connectivity to a specific port (e.g., telnet example.com 8080). Ping uses ICMP, not TCP ports. Nslookup tests DNS resolution. Tracert traces the route but does not test port status.

Answer

Ping

Answer

Nslookup

Answer

Tracert

Question 12

A technician is troubleshooting a VoIP phone that intermittently drops calls. The phone uses SIP (Session Initiation Protocol) for signaling and RTP (Real-time Transport Protocol) for audio. Which ports are typically used by these protocols?

Accepted Answer

SIP: 5060, RTP: 16384-32767. SIP typically uses port 5060 (UDP or TCP) for signaling, and RTP uses a range of UDP ports (often 16384-32767) for audio streams. Port 80 is HTTP, port 443 is HTTPS, and port 1720 is H.323 (another VoIP protocol).

Answer

SIP: 80, RTP: 443

Answer

SIP: 1720, RTP: 5060

Answer

SIP: 443, RTP: 80

Question 13

During a security audit, a technician discovers that an internal web server is responding on port 8080 instead of the standard HTTP port. What is the most likely reason for this configuration?

Accepted Answer

The server is configured as a web proxy or alternate HTTP server.. Port 8080 is commonly used as an alternate HTTP port, often for web proxy servers or secondary HTTP servers. This allows administrators to run a separate HTTP service without conflicting with the standard port 80, which is frequently used for caching proxies or development environments.

Answer

The server is running HTTPS on a non-standard port.

Answer

The server is running an FTP service.

Answer

The server is using a custom application protocol.

Question 14

A technician is configuring a new database server that needs to accept remote connections from client applications using the default port for MySQL. Which port should be opened in the firewall?

Accepted Answer

3306. MySQL uses port 3306 by default for client connections. Opening this port allows remote database access.

Answer

1433

Answer

1521

Answer

5432

Question 15

A company wants to allow employees to securely access the corporate network from home using their laptops. Which network service should be deployed to provide encrypted remote access?

Accepted Answer

VPN. C is correct because a Virtual Private Network (VPN) creates an encrypted tunnel between the employee's laptop and the corporate network, typically using protocols such as IPsec or TLS. This ensures that all data transmitted over the public internet is confidential and integrity-protected, meeting the requirement for secure remote access.

Answer

DHCP

Answer

DNS

Answer

Port forwarding

Question 16

A user reports that their computer's clock is consistently off by several minutes, causing authentication failures with the domain. The network uses Active Directory. Which service should be checked first?

Accepted Answer

NTP. NTP (Network Time Protocol) is the correct service to check first because the symptom—a clock consistently off by several minutes causing authentication failures with an Active Directory domain—is a classic sign of time synchronization issues. Active Directory uses Kerberos for authentication, which requires the client and domain controller clocks to be within a default skew of 5 minutes (RFC 4120). If the time is off, Kerberos tickets are rejected, leading to authentication failures.

Answer

DHCP

Answer

DNS

Answer

RADIUS

Question 17

A company's internal website is accessible by IP address but not by its hostname. The website is hosted on a server with a static IP. Which service is most likely misconfigured?

Accepted Answer

DNS. This question tests DNS resolution for internal resources. Access by IP works, so the server is reachable. The problem is name resolution, which points to a missing or incorrect DNS record for that hostname.

Answer

DHCP

Answer

NAT

Answer

RADIUS

Question 18

A technician is setting up a new office network with 50 devices. The network must support growth up to 100 devices. The technician chooses a subnet mask of 255.255.255.0. How many usable host addresses does this subnet provide?

Accepted Answer

254. A subnet mask of 255.255.255.0 (or /24) provides 256 total addresses, with 254 usable for hosts (the first address is the network ID and the last is the broadcast address). This is sufficient for the current 50 devices and allows for growth up to 100, but not beyond 254.

Answer

255

Answer

256

Answer

128

Question 19

A user wants to connect a new laptop to a wired network that uses 802.1X authentication. What must be configured on the laptop to ensure successful network access?

Accepted Answer

Valid 802.1X credentials (username and password or certificate). This question tests knowledge of network authentication methods. 802.1X requires a username and password (or certificate) to authenticate to the network, typically via RADIUS. Without proper credentials, the switch port will remain blocked.

Answer

A static IP address in the same subnet as the network

Answer

The correct SSID and wireless security key

Answer

A crossover cable to connect to the switch

Question 20

A company deploys a new VoIP system. Users report that calls drop frequently. The network uses a single flat subnet with no QoS configured. The technician monitors traffic and sees high bandwidth utilization during peak hours. What is the most effective solution to improve call quality?

Accepted Answer

Replace all switches with managed switches and enable QoS. This question tests knowledge of Quality of Service (QoS) and network segmentation. VoIP traffic is sensitive to latency and jitter. Implementing QoS prioritizes voice traffic over other data, ensuring call quality even during high utilization. VLANs can also help by separating voice and data traffic.

Answer

Increase the bandwidth of the internet connection

Answer

Change all VoIP phones to use static IP addresses

Answer

Disable DHCP on the network to reduce broadcast traffic