220-1201 Practice Test 30 — 15 Questions

Question 1

A small business wants to run three different operating systems on a single physical server to save space and power. Each OS must have its own dedicated CPU cores, RAM, and storage, and the hypervisor must run directly on the hardware without a host OS. Which type of hypervisor should be deployed?

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

Accepted Answer

Type 1 hypervisor. This scenario describes a Type 1 (bare-metal) hypervisor, which installs directly on hardware and allocates dedicated resources to each virtual machine. Type 1 hypervisors are used in data centers and server virtualization to maximize performance and isolation.

Answer

Type 2 hypervisor

Answer

Container-based virtualization

Answer

Emulation virtualization

Question 2

A user complains that their laptop's Wi-Fi connection drops frequently when a Bluetooth mouse is active. The laptop is a recent model with built-in Wi-Fi and Bluetooth. What is the most likely cause?

Accepted Answer

Interference between Bluetooth and Wi-Fi on the 2.4 GHz band.. The most likely cause is interference between Bluetooth and Wi-Fi on the 2.4 GHz band. Both Bluetooth and Wi-Fi (802.11b/g/n) share the same 2.4 GHz ISM band, and Bluetooth uses adaptive frequency hopping (AFH) to avoid collisions, but when a Bluetooth device is active, it can still cause co-channel interference with Wi-Fi, leading to dropped connections. This is a well-known issue, especially with older or poorly shielded hardware.

Answer

The Bluetooth mouse is out of range.

Answer

The laptop's Wi-Fi driver is outdated.

Answer

The Bluetooth mouse uses a proprietary frequency.

Question 3

A user reports that their email client can receive messages but cannot send any. The email server settings are correct, and the user can connect to the internet. The firewall is blocking outbound traffic on certain ports. Which protocol and port combination is likely blocked?

Accepted Answer

SMTP on port 25. SMTP (Simple Mail Transfer Protocol) is used for sending outgoing email messages. By default, SMTP uses port 25. If the firewall blocks outbound traffic on port 25, the email client can still receive messages (using POP3 or IMAP) but will be unable to send any, perfectly matching the user's symptoms.

Answer

POP3 on port 110

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IMAP on port 143

Answer

HTTPS on port 443

Question 4

A technician is tasked with enabling hardware-level virtualization on a desktop to run a virtual machine. Which UEFI setting must be enabled?

Accepted Answer

Enable Intel VT-x or AMD-V. Intel VT-x or AMD-V is the hardware virtualization feature that must be enabled in the CPU configuration section of UEFI. Without it, virtual machines will run slowly or fail to start. This tests knowledge of common UEFI settings for virtualization.

Answer

Enable Secure Boot

Answer

Enable Execute Disable Bit (XD/NX)

Answer

Set SATA mode to AHCI

Question 5

A technician is setting up a new file server and needs to ensure that users can access shared folders using a friendly name like \fileserver\share instead of an IP address. Which protocol must be configured correctly on the network?

Accepted Answer

DNS. DNS (Domain Name System) resolves the friendly hostname 'fileserver' to the server's IP address, allowing users to use \fileserver\share instead of an IP address. Without DNS, the SMB client cannot translate the name, and the connection fails. This makes DNS the correct protocol for name resolution in this scenario.

Answer

DHCP

Answer

SMB

Answer

HTTP

Question 6

A technician is configuring a new workstation for a secure environment. The policy requires that only signed operating systems can boot. Which UEFI feature should be enabled?

Accepted Answer

Enable Secure Boot. Secure Boot ensures that only software signed with trusted certificates can boot. This prevents unauthorized bootloaders and rootkits. This tests knowledge of UEFI security features.

Answer

Enable Legacy Boot (CSM)

Answer

Enable TPM

Answer

Set boot order to network first

Question 7

A customer reports that their new laptop cannot connect to the internet at a coffee shop, but their smartphone works fine. The technician checks the laptop's network settings and sees the Wi-Fi adapter is enabled and connected to the correct SSID. Which protocol is most likely not configured correctly on the laptop?

Accepted Answer

DHCP. The laptop is connected to the Wi-Fi network (SSID) and the adapter is enabled, but it cannot access the internet. This indicates the laptop likely failed to obtain an IP address and other network configuration parameters from the coffee shop's router. DHCP (Dynamic Host Configuration Protocol) is responsible for automatically assigning an IP address, subnet mask, default gateway, and DNS server addresses. If DHCP is misconfigured or the laptop's DHCP client is disabled or not functioning, the device will not receive a valid IP address and thus cannot route traffic to the internet, even though the Wi-Fi link is established.

Answer

DNS

Answer

HTTP

Answer

ARP

Question 8

A technician is setting up a virtual lab on a laptop with 8 GB RAM and a dual-core CPU. The technician creates two VMs: one with 4 GB RAM and one with 2 GB RAM. The host OS is Windows 10. When both VMs are running, the laptop becomes unresponsive and the VMs are extremely slow. The technician checks resource monitor and sees that the host is using 95% of RAM. What should the technician do to improve performance without purchasing new hardware?

Accepted Answer

Reduce the RAM allocation of the 4 GB VM to 2 GB.. Over-allocating RAM to VMs on a host with limited memory causes swapping and poor performance. The best solution is to reduce the RAM allocated to the VMs or use dynamic memory allocation if supported. The correct answer focuses on adjusting VM memory settings, which is a practical troubleshooting step.

Answer

Enable hardware virtualization in the BIOS.

Answer

Convert the VMs to use dynamic memory allocation.

Answer

Move the VMs to a Type 1 hypervisor.

Question 9

A user complains that they can browse the internet but cannot access network shares on a file server by hostname, though they can access them by IP address. The DNS server is responding to queries for other domains. Which protocol is most likely malfunctioning?

Accepted Answer

NetBIOS. The user can access network shares by IP address but not by hostname, which indicates a name resolution failure specific to NetBIOS. NetBIOS over TCP/IP (NBT) is responsible for resolving NetBIOS names (used for file and printer sharing on Windows networks) to IP addresses. Since DNS works for other domains but not for the file server's hostname, the issue is likely with NetBIOS name resolution, not DNS.

Answer

HTTP

Answer

DHCP

Answer

ARP

Question 10

A user complains that their laptop frequently disconnects from the Wi-Fi when they move to the conference room, which is 50 feet from the access point through two walls. The network uses 5 GHz. What is the MOST likely cause of the disconnects?

Accepted Answer

5 GHz signals have poor penetration through walls.. The 5 GHz band offers higher data rates and less interference than 2.4 GHz, but it has significantly poorer wall penetration due to its shorter wavelength. At 50 feet through two walls, the signal attenuation is severe enough to cause frequent disconnects, especially if the walls contain dense materials like concrete or metal studs.

Answer

The access point is overloaded with too many clients.

Answer

The laptop's power management settings are turning off the Wi-Fi adapter.

Answer

The conference room has a metal door that blocks the signal.

Question 11

A network administrator is configuring a small business network with two subnets: 192.168.1.0/24 for employees and 192.168.2.0/24 for guests. The router has two LAN interfaces with IPs 192.168.1.1 and 192.168.2.1. A technician connects a new access point to the guest subnet switch and configures it with a static IP of 192.168.2.50. The access point can ping the router's guest interface but cannot reach the internet. The router's default route points to an ISP modem at 203.0.113.1. What is the most likely missing configuration?

Accepted Answer

NAT is not enabled for the 192.168.2.0/24 subnet on the router.. The access point can ping the router's guest interface (192.168.2.1), confirming Layer 2 and Layer 3 connectivity within the guest subnet. However, it cannot reach the internet, which indicates that the router is not performing Network Address Translation (NAT) for the 192.168.2.0/24 subnet. Without NAT, private IP addresses from the guest subnet are not translated to the router's public IP, so the ISP modem drops the return traffic because it has no route back to the private range.

Answer

The access point's default gateway is set to 192.168.1.1.

Answer

The access point has a duplicate IP address.

Answer

The ISP modem is blocking traffic from the guest subnet.

Question 12

A company deploys a load balancer to distribute traffic across three web servers. Users report that they occasionally see outdated content or are asked to log in repeatedly. Which network service configuration is most likely missing to maintain session persistence?

Accepted Answer

Session persistence (sticky sessions). Session persistence (sticky sessions) ensures that all requests from a given user session are directed to the same backend web server. Without it, the load balancer may distribute requests across different servers, causing the user to see outdated content if one server has stale cached data, or to be asked to log in repeatedly if the session state is stored locally on each server rather than in a shared database.

Answer

DNS round-robin

Answer

DHCP reservation

Answer

Port forwarding

Question 13

A technician is servicing a tablet that will not power on. The technician has confirmed the battery is charged by testing it with a multimeter (voltage within spec). The power button feels normal when pressed. What is the most likely hardware component that has failed, and how should it be addressed?

Accepted Answer

Reseat or replace the power button flex cable.. The power button flex cable is the most likely failed component because the battery is confirmed good (voltage within spec) and the power button itself feels normal, indicating the button mechanism is intact but the electrical connection to the motherboard is broken. Reseating or replacing the flex cable restores the circuit that signals the power management IC to initiate boot, which is a common failure point in tablets due to flex cable wear or loose connection.

Answer

Replace the LCD screen assembly.

Answer

Replace the motherboard.

Answer

Perform a hard reset by holding the power and volume buttons for 30 seconds.

Question 14

A technician is setting up a new wireless network for a warehouse. The warehouse has metal shelving and concrete walls. Which wireless standard should the technician choose to maximize range and penetration through obstacles?

Accepted Answer

802.11n. 802.11n (Wi-Fi 4) operates in both the 2.4 GHz and 5 GHz bands, but its key advantage for this scenario is the 2.4 GHz band, which offers longer range and better penetration through obstacles like metal shelving and concrete walls due to lower frequency and better diffraction characteristics. It also supports MIMO (Multiple Input Multiple Output) with up to four spatial streams, which can improve signal robustness in multipath environments typical of warehouses.

Answer

802.11ac

Answer

802.11ax (Wi-Fi 6)

Answer

802.11a

Question 15

A customer reports that they can browse the internet but cannot send or receive emails using their desktop email client. The email server is known to be working. Which port is most likely being blocked by a firewall?

Accepted Answer

Port 587. Port 587 is the standard SMTP submission port (RFC 6409) used by email clients to send outgoing mail. Since the user can browse the internet (ports 80/443 are open) but cannot send or receive emails, a firewall blocking port 587 would prevent the email client from submitting outgoing messages to the server, while leaving web traffic unaffected. The email server is confirmed working, so the issue is likely a blocked outbound port on the client's firewall.

Answer

Port 80

Answer

Port 443

Answer

Port 110