220-1101 Practice Test 38 — 15 Questions

Question 1

A user's smartphone battery is bulging and the back cover is popping off. Which of the following should the user do FIRST?

Accepted Answer

C. Power off the phone and remove the battery if possible, then dispose of it properly. A bulging battery indicates a critical failure in the lithium-ion cell, often caused by internal short circuits or overcharging that generate gas from electrolyte decomposition. The immediate priority is to power off the device to stop current flow and remove the battery (if possible) to prevent thermal runaway, fire, or rupture. Proper disposal is required because the damaged cell is hazardous and cannot be safely recharged or reused.

Answer

A. Place the phone in a freezer to reduce swelling

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B. Continue using the phone but avoid charging it

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D. Puncture the battery to release the gas

Question 2

A user reports that their Android smartphone's battery drains very quickly. The technician checks the battery stats and sees that the screen brightness is set to maximum and the battery health is reported as 'Good'. Which of the following settings should the technician suggest to MOST improve battery life?

Accepted Answer

Reduce the screen brightness.. The screen is the largest power consumer on a smartphone, and maximum brightness significantly increases battery drain. Since the battery health is already 'Good', reducing screen brightness directly addresses the primary cause of rapid discharge without disabling necessary functions.

Answer

Enable airplane mode.

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Disable all background processes.

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Remove the phone's case.

Question 3

A company uses a public cloud IaaS provider. They are billed monthly based on the total hours their virtual machines are running and the amount of block storage allocated. Which cloud computing characteristic does this billing model represent?

Accepted Answer

Metered service. The billing model described—charging based on total hours VMs are running and the amount of block storage allocated—directly corresponds to metered service. In cloud computing, metered service (also called pay-per-use or measured service) means the provider tracks resource consumption (e.g., compute hours, storage GB-months) and bills accordingly. This is a core characteristic of cloud computing as defined by NIST SP 800-145, enabling usage-based cost allocation.

Answer

Rapid elasticity

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On-demand self-service

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Resource pooling

Question 4

A network technician is troubleshooting a connectivity issue. Users on VLAN 10 (192.168.10.0/24) can access the internet but cannot reach a server on VLAN 20 (192.168.20.0/24) by IP address. The router's ACL allows all traffic between VLANs. The technician pings the server IP from a client on VLAN 10 and gets a request timed out. The technician then checks the routing table on the router and sees routes for both VLANs. Which of the following is the NEXT step to isolate the issue?

Accepted Answer

Perform a traceroute from the client to the server.. A traceroute (using ICMP or UDP probes with increasing TTL values) will reveal the path packets take from the client to the server. Since the router's ACL permits all inter-VLAN traffic and routes exist for both VLANs, the issue likely lies beyond Layer 3 routing—possibly at a firewall, a misconfigured switch port, or a routing loop. Traceroute isolates exactly where packets are dropped, narrowing the troubleshooting scope.

Answer

Check the server's firewall settings.

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Check the switch port for the server is in the correct VLAN.

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Check the default gateway on the client.

Question 5

A user reports that their desktop computer powers on but the monitor shows no display. The technician has already verified the monitor works with another computer, the video cable is securely connected, and the computer's internal fans spin. The computer has a dedicated graphics card and the monitor is connected to the motherboard's video port. Which of the following should the technician do NEXT?

Accepted Answer

Connect the monitor to the dedicated graphics card's port.. The monitor is connected to the motherboard's video port, but the system has a dedicated graphics card. When a dedicated GPU is installed, the motherboard's integrated graphics port is typically disabled by the BIOS/UEFI. Connecting the monitor to the dedicated graphics card's port will likely restore display output, as the GPU is the active video source.

Answer

Replace the graphics card.

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Reseat the RAM modules.

Answer

Update the graphics drivers.

Question 6

A technician is installing a new CPU into a desktop motherboard. After placing the CPU into the socket and applying a small amount of thermal paste, the technician is about to attach the heatsink. Which of the following is the correct method for securing the heatsink?

Accepted Answer

Tighten screws in a diagonal/cross pattern a little at a time. The correct method is to tighten the heatsink screws in a diagonal/cross pattern a little at a time. This ensures even pressure distribution across the CPU's integrated heat spreader (IHS), preventing uneven contact that can cause hot spots or thermal throttling. Tightening one screw fully first can tilt the heatsink, creating an air gap that reduces thermal transfer efficiency.

Answer

Tighten one screw fully, then move to the next

Answer

Apply additional thermal paste after mounting the heatsink

Answer

Use a power drill to speed up the process

Question 7

A technician installs two 8 GB DDR4-2666 memory modules into a desktop motherboard that supports DDR4-3200. The system powers on and the BIOS detects 16 GB of RAM. What speed will the memory run at?

Accepted Answer

2666 MHz. The memory will run at 2666 MHz because the system memory speed is determined by the slowest component in the chain. The installed modules are DDR4-2666, and even though the motherboard supports DDR4-3200, the memory controller will clock the RAM at the rated speed of the modules (2666 MHz) unless overclocked or XMP is enabled. The BIOS detects 16 GB correctly, but speed is limited by the module's native JEDEC standard.

Answer

3200 MHz

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2933 MHz

Answer

2133 MHz

Question 8

A company wants to deploy a custom web application. They need full control over the operating system, middleware, and runtime environment, but they do not want to manage the underlying physical hardware, such as servers, storage, and networking equipment. Which cloud service model BEST meets this requirement?

Accepted Answer

Infrastructure as a Service (IaaS). Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, giving the customer full control over the operating system, middleware, and runtime environment while the cloud provider manages the underlying physical hardware (servers, storage, networking). This matches the requirement exactly, as the company retains administrative access to the OS and software stack without needing to manage physical infrastructure.

Answer

Platform as a Service (PaaS)

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Software as a Service (SaaS)

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Desktop as a Service (DaaS)

Question 9

A company wants to migrate a custom-developed web application to the cloud. The IT team needs full control over the operating system, middleware, and runtime environment but does not want to manage physical hardware or the underlying virtualization layer. Which cloud service model should the organization choose?

Accepted Answer

Infrastructure as a Service (IaaS). Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, giving the customer full control over the operating system, middleware, and runtime environment while abstracting away the physical hardware and underlying virtualization layer. This matches the requirement for complete control without managing the physical infrastructure.

Answer

Software as a Service (SaaS)

Answer

Platform as a Service (PaaS)

Answer

Desktop as a Service (DaaS)

Question 10

A network technician is configuring a small office network. The company wants to ensure that only authorized company devices can connect to the wired network. The network uses a managed switch and a DHCP server. Which security feature should the technician configure on the switch to BEST meet this requirement?

Accepted Answer

802.1X. 802.1X is the correct answer because it provides port-based network access control (PNAC) that authenticates devices before granting access to the wired network. It uses the Extensible Authentication Protocol (EAP) over LAN (EAPoL) to verify credentials against an authentication server (e.g., RADIUS), ensuring only authorized company devices can connect. This meets the requirement precisely by enforcing per-device authentication at the switch port level.

Answer

Port security

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DHCP snooping

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MAC address filtering

Question 11

A small office has 18 computers that need to be connected to share files and access the internet. The ISP provides a modem with a single Ethernet port. The office router has four LAN ports. Which device should the technician add to enable all 18 computers to connect to the network?

Accepted Answer

B. A switch. A switch is the correct device because it provides multiple Ethernet ports (typically 24 or 48) and operates at Layer 2, forwarding frames based on MAC addresses. This allows all 18 computers to connect to the network, share files, and access the internet through the existing router, which only has four LAN ports.

Answer

A. A hub

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C. A bridge

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D. A firewall

Question 12

A company is migrating its on-premises infrastructure to a cloud provider. The IT team needs full control over the operating system, the ability to install custom applications, and the ability to configure network settings such as firewalls and subnets. They want to avoid managing the physical hardware. Which cloud service model BEST meets these requirements?

Accepted Answer

Infrastructure as a Service (IaaS). Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, giving the IT team full control over the operating system, the ability to install custom applications, and the ability to configure network settings such as firewalls and subnets, while the cloud provider manages the physical hardware. This model abstracts the underlying hardware but exposes the virtual infrastructure, meeting all stated requirements.

Answer

Software as a Service (SaaS)

Answer

Platform as a Service (PaaS)

Answer

Desktop as a Service (DaaS)

Question 13

A technician is building a new desktop computer for a graphic designer. After installing the motherboard, CPU, RAM, and a high-end discrete GPU, the system powers on (fans spin, LEDs light) but the monitor displays 'No Signal' when plugged into the GPU. The technician verifies the monitor works with another computer. Which of the following should the technician check FIRST?

Accepted Answer

Verify that the PCIe power cables from the power supply are properly connected to the graphics card. The most common cause of a 'No Signal' error when a discrete GPU is installed is that the PCIe power cables from the power supply are not connected or are insufficiently seated. High-end GPUs require dedicated 6-pin or 8-pin PCIe power connectors; without them, the card may power its fans and LEDs via the PCIe slot but cannot initialize the display output. Since the monitor works with another computer, the issue is isolated to the GPU's power delivery, making this the logical first check.

Answer

Reseat the graphics card in the PCIe slot

Answer

Replace the HDMI or DisplayPort cable

Answer

Update the motherboard BIOS to the latest version

Question 14

A technician is building a database server that requires fast random read/write performance for small data blocks. Which of the following storage devices will BEST meet this requirement?

Accepted Answer

An NVMe M.2 solid-state drive. An NVMe M.2 solid-state drive is the best choice because it connects directly via the PCIe bus, bypassing the SATA controller and its protocol overhead. This provides dramatically lower latency and higher IOPS (input/output operations per second), which is essential for fast random read/write performance on small data blocks in a database server.

Answer

A 7200 RPM hard disk drive

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A SATA-based solid-state drive

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An external USB 3.0 hard drive

Question 15

A company hosts its web servers on a public cloud IaaS platform. They want to ensure that if the physical host running one of their virtual machines fails, the VM automatically restarts on another healthy physical host within the same cloud provider's infrastructure. Which cloud computing characteristic makes this possible?

Accepted Answer

High availability. High availability (C) is the correct answer because it refers to a system's ability to remain operational and automatically recover from failures. In this scenario, the automatic restart of a VM on a healthy physical host after a host failure is a direct implementation of high availability, often achieved through features like VMware vSphere HA or Microsoft Hyper-V Failover Clustering, which monitor host health and restart VMs on surviving hosts.

Answer

Rapid elasticity

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Resource pooling

Answer

Measured service