220-1201 Practice Exam 58 — 20 Questions

Question 1

A customer reports that their new laptop cannot connect to the company's Wi-Fi network, but other devices connect fine. You need to check if the laptop's wireless adapter is functioning properly and can see available networks. Which tool should you use?

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

Accepted Answer

Wi-Fi analyzer. A Wi-Fi analyzer (option C) is the correct tool because it can scan for available wireless networks, display their SSIDs, signal strengths, and channels, and verify whether the laptop's wireless adapter is detecting any networks at all. This directly addresses the need to check if the adapter is functioning and can see the company's Wi-Fi, isolating the issue to the laptop's wireless hardware or configuration rather than the network itself.

Answer

Cable tester

Answer

Loopback plug

Answer

Multimeter

Question 2

A technician is configuring a new printer on a network with the IP 172.16.0.50 and subnet mask 255.255.0.0. The router's LAN IP is 172.16.0.1. A workstation with IP 172.16.1.10 can ping the printer, but a workstation with IP 172.17.0.10 cannot. What is the most likely reason?

Accepted Answer

The workstation with IP 172.17.0.10 is on a different network and needs a router to reach the printer.. The workstation with IP 172.17.0.10 has a subnet mask of 255.255.0.0, so it considers its local network to be 172.17.0.0/16. The printer's IP 172.16.0.50 is on the 172.16.0.0/16 network. Since these are different classful networks (172.16.0.0 vs 172.17.0.0), the workstation will send traffic to its default gateway (the router) for delivery. If the router is not configured to route between these subnets, or if the workstation lacks a default gateway, the ping fails. Option B correctly identifies that the workstation is on a different network and requires a router to reach the printer.

Answer

The printer's subnet mask is wrong.

Answer

The printer has a duplicate IP address.

Answer

The default gateway on the printer is missing.

Question 3

A user reports that their laptop's keyboard types random characters when certain keys are pressed. The laptop has not been dropped or spilled on. What is the most likely hardware issue?

Accepted Answer

The keyboard has an internal short or faulty controller.. A keyboard with an internal short or faulty controller can cause erratic behavior like typing random characters when keys are pressed. This occurs because the short or controller failure disrupts the matrix scanning process, sending incorrect key codes to the system. Since the laptop was not dropped or spilled, physical damage like a loose ribbon cable is less likely, making an internal component failure the most probable hardware cause.

Answer

The keyboard driver is corrupted.

Answer

The keyboard ribbon cable is loose.

Answer

The operating system has a malware infection.

Question 4

A technician needs to install a CPU that supports both DDR4 and DDR5 memory on a new motherboard. The motherboard manual lists support for only DDR5. Which of the following is the best course of action?

Accepted Answer

Install DDR5 RAM as the motherboard supports it. Memory controllers are integrated into the CPU, but the motherboard's memory slots and BIOS determine which type is supported. If the board only supports DDR5, using a CPU that supports both will still require DDR5 modules.

Answer

Install DDR4 RAM because the CPU supports it

Answer

Update the BIOS to enable DDR4 support

Answer

Use a different CPU that only supports DDR5

Question 5

A customer wants to connect two buildings that are 200 meters apart with a high-speed network link. Which cabling solution is most appropriate?

Accepted Answer

Fiber optic cable. Fiber optic cable is the most appropriate solution for connecting two buildings 200 meters apart because it supports high-speed data transmission over long distances without signal degradation. Unlike copper cables, fiber is immune to electromagnetic interference (EMI) and can easily exceed the 100-meter distance limit of twisted-pair cabling, making it ideal for inter-building links.

Answer

Cat6a copper cable

Answer

Coaxial cable

Answer

Wireless bridge

Question 6

A graphic designer wants to connect three 4K monitors to a single workstation for a video editing suite. The workstation has a graphics card with one HDMI 2.0 port, one DisplayPort 1.4, and one DVI-D port. The monitors all support HDMI and DisplayPort. Which configuration will allow all three monitors to display at 4K resolution simultaneously?

Accepted Answer

Connect one monitor via HDMI, one via DisplayPort, and use a DisplayPort-to-HDMI adapter for the third. The graphics card has one HDMI 2.0 port and one DisplayPort 1.4 port. While the card has only one DisplayPort, it can support multiple displays through a DisplayPort Multi-Stream Transport (MST) hub. By using an MST hub, you can connect a monitor directly via DisplayPort and another via a DisplayPort-to-HDMI adapter, both using the single DisplayPort port. The HDMI port connects the third monitor. All connections support 4K at 60 Hz: HDMI 2.0 and DisplayPort 1.4 natively, and the DisplayPort-to-HDMI adapter, if active and HDMI 2.0 compliant, preserves 4K resolution. The DVI-D port is single-link DVI and limited to 1920x1200, so it cannot drive a 4K monitor.

Answer

Connect one monitor via HDMI, one via DisplayPort, and one via DVI-D

Answer

Use a DisplayPort hub to connect all three monitors to the single DisplayPort

Answer

Replace the graphics card with one that has three DisplayPorts

Question 7

A customer reports that their desktop PC, which originally had 8 GB of RAM, is now very slow after they installed a second 8 GB stick. The system boots and shows 16 GB in the BIOS, but the OS only reports 8 GB usable. What is the most likely cause?

Accepted Answer

The motherboard only supports up to 8 GB of RAM.. The most likely cause is that the motherboard has a 8 GB maximum memory limit, often due to chipset or BIOS limitations. Even if the BIOS detects 16 GB installed, the OS cannot address beyond the supported limit, resulting in only 8 GB usable. This is a common occurrence on older motherboards or those with a 32-bit UEFI.

Answer

The new RAM stick is faulty and needs to be replaced.

Answer

The RAM is not fully seated in the slot.

Answer

The new RAM stick is incompatible with the existing module, causing the system to run in single-channel mode and limiting usable memory.

Question 8

A customer reports that their new VoIP phone cannot register with the company's call server, but their computer on the same switch port works fine. The network uses VLANs for voice and data traffic. Which protocol must be configured on the switch port to separate the voice traffic from the data traffic?

Accepted Answer

802.1Q. 802.1Q is the IEEE standard for VLAN tagging, which allows a single switch port to carry traffic for multiple VLANs. In this scenario, the switch port must be configured as an 802.1Q trunk or use a voice VLAN feature that tags VoIP traffic with a specific VLAN ID, separating it from the untagged data traffic. This ensures the VoIP phone can communicate with the call server on its designated voice VLAN while the computer continues to work on the data VLAN.

Answer

DHCP

Answer

DNS

Answer

ARP

Question 9

A technician is migrating a database from an on-premises server to a cloud platform. The database contains sensitive customer information. The company requires that data be encrypted both at rest and in transit. Which combination of technologies should the technician implement?

Accepted Answer

TLS for in transit and AES-256 for at rest. For data in transit, TLS/SSL encrypts communication between the application and the database. For data at rest, the cloud provider's encryption feature (e.g., AWS EBS encryption or Azure SQL TDE) encrypts the stored data. AES-256 is a common encryption standard for at-rest data, but it must be implemented by the provider's service.

Answer

SSL for at rest and IPsec for in transit

Answer

VPN for in transit and hashing for at rest

Answer

SSH tunneling for at rest and TLS for in transit

Question 10

A technician is troubleshooting a user's laptop that cannot obtain an IP address via DHCP. The laptop shows an Automatic Private IP Addressing (APIPA) address of 169.254.x.x. Other devices on the same network obtain IPs correctly. Which protocol should the technician verify is functioning on the laptop?

Accepted Answer

DHCP. The laptop has an APIPA address (169.254.x.x), which is assigned when a DHCP client fails to receive a DHCPOFFER from any DHCP server. Since other devices on the same network obtain IPs correctly, the DHCP server and network infrastructure are functional, so the issue is isolated to the laptop's DHCP client service or its ability to send and receive DHCP messages (UDP ports 67/68). The technician must verify that the DHCP protocol is functioning correctly on the laptop, including checking that the DHCP client service is running and that no firewall is blocking DHCP traffic.

Answer

DNS

Answer

ARP

Answer

ICMP

Question 11

A user cannot connect to a remote server using RDP. The network team confirms that the firewall allows outbound traffic on all ports. Which port is typically used for RDP and should be verified on the server side?

Accepted Answer

Port 3389. RDP (Remote Desktop Protocol) uses TCP port 3389 by default. Since the firewall allows outbound traffic on all ports, the issue is likely that the server-side firewall or the RDP service is not listening on port 3389, or the port is blocked inbound on the server's firewall. Verifying that port 3389 is open and the RDP service is running on the server is the correct next step.

Answer

Port 22

Answer

Port 23

Answer

Port 5900

Question 12

A technician is configuring a new file server and wants to ensure that when users type \fileserver in File Explorer, it resolves to the correct IP address. The network uses a Windows domain with Active Directory. Which network service should the technician configure to allow hostname resolution for this server?

Accepted Answer

DNS. DNS (Domain Name System) is the correct service because it resolves hostnames (like \fileserver) to IP addresses in a Windows domain environment. When a user types \fileserver in File Explorer, the client queries DNS to obtain the server's IP address, enabling SMB file sharing. Active Directory relies on DNS for service location and name resolution, making it the mandatory service for this task.

Answer

DHCP

Answer

WINS

Answer

NAT

Question 13

A technician is setting up a small network for a home office. The router's WAN port receives a public IP of 203.0.113.5 from the ISP. The technician configures the LAN with a private IP range. Which of the following is a valid private IP address for the technician to assign to a workstation?

Accepted Answer

192.168.1.10. (192.168.1.10) is correct because it falls within the private IPv4 address range defined by RFC 1918 for Class C networks (192.168.0.0/16). Private IP addresses are reserved for internal LAN use and are not routable on the public internet, making them appropriate for a workstation behind a router performing NAT.

Answer

172.32.1.10

Answer

203.0.113.10

Answer

169.254.1.10

Question 14

A user complains that they cannot access a website by its domain name, but they can access it by typing the IP address directly. The user's computer is configured to obtain DNS automatically. What is the most likely issue?

Accepted Answer

The DNS server is not responding or is misconfigured.. The user can access the website by IP address but not by domain name, which indicates that DNS resolution is failing. Since the computer is configured to obtain DNS automatically, the most likely cause is that the DNS server assigned by DHCP is not responding or is misconfigured, preventing the translation of the domain name to an IP address.

Answer

The user's computer has a static IP address that conflicts with another device.

Answer

The user's browser cache is corrupted.

Answer

The website's IP address has changed.

Question 15

A customer reports that their new laptop cannot connect to the company's Wi-Fi network, but other devices connect fine. You need to check if the laptop's wireless adapter is functioning properly and can see available networks. Which tool should you use?

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

Accepted Answer

ipconfig /all. The ipconfig /all command displays the full TCP/IP configuration, including the DNS server addresses assigned to the laptop's network adapter. Since the user can reach websites by IP address but not by domain name, the issue is likely with DNS resolution; ipconfig /all allows verification of whether the DNS server is correctly configured or pointing to an unreachable server.

Answer

ping 8.8.8.8

Answer

nslookup www.example.com

Answer

tracert 8.8.8.8

Question 16

A customer reports that their Android phone's email app crashes whenever they try to open an attachment from a work email. The app worked fine last week. What is the most likely cause of this issue?

Accepted Answer

The email app's cache or data is corrupted.. The most likely cause is that the email app's cache or data has become corrupted. This corruption can prevent the app from properly processing attachments, even though it worked previously. Clearing the app's cache or data typically resolves such crashes without affecting the email server or requiring an OS update.

Answer

The email server is blocking attachments.

Answer

The phone's operating system needs to be updated.

Answer

The attachment is too large for the phone to handle.

Question 17

A technician is configuring a tablet for a delivery driver who needs to navigate and take photos of packages. The driver complains the tablet's screen is hard to see in direct sunlight. Which accessory would best address this issue?

Accepted Answer

An anti-glare screen protector with a matte finish.. An anti-glare screen protector with a matte finish reduces reflections by scattering ambient light through a microscopic textured surface, which improves readability in direct sunlight without increasing the display's inherent brightness. This directly addresses the driver's issue of screen glare outdoors, whereas other options either fail to reduce glare or introduce impracticality for mobile use.

Answer

A high-brightness screen protector that boosts luminance.

Answer

A privacy screen filter to reduce viewing angles.

Answer

A sunshade hood that attaches to the tablet case.

Question 18

A user reports that their laptop can connect to the internet when using a wired connection at home, but cannot connect to any network resources when using Wi-Fi at the office. The office uses DHCP with a scope of 192.168.10.0/24. The laptop's IP configuration shows an address of 169.254.15.22. What is the most likely cause of this issue?

Accepted Answer

The laptop cannot reach the DHCP server on the office network.. The IP address 169.254.15.22 is an Automatic Private IP Addressing (APIPA) address (169.254.0.0/16), which Windows assigns when a DHCP client fails to receive a lease from a DHCP server. Since the laptop can connect via wired Ethernet at home but not via Wi-Fi at the office, the most likely cause is that the Wi-Fi adapter cannot communicate with the office DHCP server, preventing it from obtaining a valid 192.168.10.0/24 address.

Answer

The laptop's Wi-Fi adapter is disabled in Device Manager.

Answer

The office DHCP server is out of available IP addresses.

Answer

The laptop's DNS settings are misconfigured.

Question 19

A technician is setting up a network printer that supports both LPD (Line Printer Daemon) and IPP (Internet Printing Protocol). The printer must be accessible from Windows and Linux clients. Which port should be opened for IPP?

Accepted Answer

631. IPP (Internet Printing Protocol) uses TCP port 631 by default, as defined in RFC 2911. Since the printer must be accessible from both Windows and Linux clients, opening port 631 allows IPP-based printing, which is natively supported by both operating systems.

Answer

515

Answer

9100

Answer

80

Question 20

A company is setting up a guest wireless network in a conference room. They want to ensure that guests can access the internet but cannot communicate with internal corporate devices. The network uses a single router and a switch. Which configuration on the router will best achieve this?

Accepted Answer

Create a separate VLAN for the guest network and apply an ACL to block traffic to the internal network.. Creating a separate VLAN for the guest network isolates guest traffic at Layer 2, and applying an ACL on the router's VLAN interface blocks traffic destined for the internal network while permitting internet-bound traffic. This ensures guests cannot reach internal corporate devices, meeting the security requirement without additional hardware.

Answer

Configure the router to use DHCP for the guest network.

Answer

Disable the SSID broadcast for the guest network.

Answer

Use a wireless access point with a built-in firewall.