CompTIA A+ Practice Test (220-1101)

A layer 3 switch is designed to perform both switching (at layer 2) and routing (at layer 3). This enables it to segment the network into different subnets or VLANs, reducing broadcast domains and improving security by isolating departmental traffic. It also allows for the management of internal routing through the switch, without the need for an external router. A standard switch or hub would not provide the routing capabilities or the ability to enforce policies and manage traffic across VLANs. While a firewall offers security features, it does not offer the intranet routing capabilities of a layer 3 switch.

If replacing the monitor does not fix the issue, the next step is to check the cable being used to connect the monitor to the PC. A damaged cable or incorrect connection can cause color distortion or a tint. A loose or damaged pin in the cable often results in color issues. Replacing or properly connecting the video cable may resolve the problem.

Cloud Infrastructure, like all infrastructure, still requires special care to ensure it's security. Some of the benefits of Cloud Infrastructure are the pay-as-you-go model (usually per second or per minute billing), flexibility to create and delete servers on demand or automatically and the ease of provisioning complex services like database clusters without highly specialized experts.

HDMI connectors are designed to transmit both high-definition video and audio from a source device to a display. They are widely used for this purpose because of their ability to handle high resolutions, such as 4K, as well as their convenience in integrating audio and video signals in a single cable.

Creating separate VLANs for the accounting and marketing departments is the correct solution to establish distinct broadcast domains. This allows for segmenting the network based on different departments, which not only limits broadcasts to specific areas within the network but also improves overall security by controlling inter-department communication flows. Using ACLs on switches or subnets would not inherently create separate broadcast domains as they do not segment the network at Layer 2, and doing nothing would not improve separation or network performance.

True - failure of a single disk in RAID 1 will not result in permanent data loss. Redundant Array of Independent Disks 1 (RAID) uses disk mirroring to ensure every piece of data can also be found on another hard drive. This means if a single disk fails, another disk will still have the necessary data. Be careful reading this question, CompTIA questions will try to trick you. It says will NOT result in data loss

The correct answer is 'Active touch pen with pressure sensitivity' because these touch pens are designed with specific technology that allows for fine control and are capable of detecting varying levels of pressure, which is crucial for detailed graphic work. Active touch pens often include additional features such as palm rejection, which ensures that only the pen input is detected, even when the hand is resting on the screen. On the other hand, Stylus pens without pressure sensitivity do not provide the nuanced control needed for detailed digital artwork, and a Digital eraser is not a type of touch pen but a feature on some active pens for deleting digital content.

Quality of Service (QoS) is a common feature on routers that allows you to set minimums and maximums to certain types of traffic and give priority to some traffic over others. For example you could set a max bandwidth for some devices or simply give your devices network priority over other device's traffic.

A cable tester is specifically designed to test the integrity of cable pairs and ensure the correct pinout configuration. This tool will check for problems such as open wires, shorts, crossed pairs, and other issues that might affect data transmission. While the other tools listed are useful in different contexts, such as setting up or diagnosing network issues, the cable tester is the best choice for directly testing the physical cables themselves.

The microUSB 3.0 port is designed to provide fast data transfer rates while also being capable of supplying power to the external hard drive. This is an appropriate choice since the user needs to frequently unplug the device, indicating portability, and would benefit from fast data transfer speeds when the device is connected. Moreover, because the microUSB 3.0 connector is backward compatible, it can still be used with older ports at their respective speeds.

Deploying VDI on premises involves setting up and managing virtualized desktops within the company's data center. This method allows tight control over data security, compliance, and access control measures because all resources are managed internally, making it suitable for environments with sensitive information. Public cloud VDI might offer scalability, but it poses risks related to data sovereignty and privacy. Hybrid cloud allows partial data control but still involves external factors. Community cloud is less common and not ideal for a single organization's sensitive data needs.

A load balancer is an Internet appliance designed to distribute workload across multiple servers or network links to optimize resource use, maximize throughput, minimize response time, and avoid overload on any one of the servers. This is fundamental for students to understand because managing server traffic and maintaining service availability are key aspects of network administration. Internet appliances like Unified Threat Management (UTM) devices focus on security functions, spam gateways specialize in filtering unwanted emails, and proxy servers are responsible for forwarding client requests to other servers while possibly hiding the client's true identity.

A DNS record should be established for this network resource. DNS records allow users to access a resource via a name, rather than having to remember a complex IP address.

When pairing two devices over Bluetooth, typically only one of the devices needs to be set to discoverable mode. The other device, which initiates the connection, scans for available devices and does not need to be discoverable itself. This question might trip up individuals who associate 'discoverability' as a requirement on both sides, which is not the case in most Bluetooth pairing scenarios.

Using application virtualization to run the legacy software allows the company to continue using the outdated application on modern operating systems without the risk of running an unsupported OS on their hardware. This ensures the application is isolated from the host OS, thus mitigating any potential security risks associated with the old software.