CompTIA A+ Practice Test (220-1102)

Virtual Network Computing (VNC) is the correct answer because it is a graphical desktop-sharing system that uses the Remote Frame Buffer (RFB) protocol to remotely control another computer. It's platform-independent, meaning it can work across different operating systems, making it versatile for cross-platform support.

RDP (Remote Desktop Protocol) is specific to Windows systems and isn't platform-independent. SSH (Secure Shell) is primarily for command-line access and doesn't provide graphical interface control by default. FTP (File Transfer Protocol) is used for transferring files, not for remote desktop control.

The correct answer is to check the wireless adapter status in the Network Connections folder to ascertain its current state and ensure it is enabled. If the adapter is disabled, it would cause a loss of connectivity, and re-enabling it may restore the connection. The incorrect options, such as restarting the router or replacing the network cable, are not relevant as the issue is with the laptop's adapter according to the scenario. Checking the proximity to the access point would only be relevant if the laptop was failing to detect the signal strength, not for a disabled adapter.

System Restore is a tool that will cycle all files and applications back to the time specified, while task manager allows the administrator to monitor system usage and close applications.

These desktop alerts are characteristic of scareware, a type of malware that tricks users into believing their system is compromised to extort money or personal information. Such alerts frequently use alarming language and urge immediate action, often providing a phone number to call. Legitimate antivirus software does not operate in this manner.

Synthetic backups are designed to merge full and incremental backups to create a new full backup without affecting the original set. This method reduces the total amount of storage space needed since it consolidates data efficiently.

Other options like full backups can be resource-intensive, requiring significant storage, and incremental backups alone can lead to longer restoration times as they require stacking from the last full backup. Therefore, synthetic backups offer a balanced advantage for quick restorations and storage efficiency.

Enabling WPA3 on the wireless network provides robust security through stronger encryption protocols and represents the most up-to-date security standard among listed options, thus effectively preventing unauthorized access while maintaining the integrity of the network's internal resources. Changing the SSID and disabling the SSID broadcast may obscure the network but do not provide encryption or truly secure the network. While disabling UPnP might reduce the surface for potential exploitation, it does not directly prevent unauthorized access to the network.

Enabling developer mode on a mobile device can expose the device to security risks because it allows the user to access advanced development-related settings that can alter the device's functionality. These settings, if misconfigured, can make the device vulnerable to malicious attacks or unintentionally introduce security weaknesses.

This statement is False.

This is because tracert is the command used in Windows operating systems, while traceroute serves the same function in UNIX and Linux systems. Understanding both commands is important for troubleshooting network paths and identifying connectivity issues, as they provide similar outputs that map the route packets take from the source to the destination, helping to pinpoint where delays or failures may occur.

A lack of available RAM is often responsible for causing sluggish response times as the system struggles to manage multiple applications simultaneously without adequate memory. This issue forces the computer to use disk-based virtual memory, which is slower than RAM, thus slowing down the entire system. The other options do not directly cause sluggish response times. Overheating can lead to system throttling or shutdowns but not directly to sluggish performance. Loose cables might cause connectivity issues or hardware malfunctions but would not typically slow down the system. Incorrect user settings can lead to poor configuration but usually do not influence the overall performance speed directly.

The answer is Static. A static Ip address is an ip address assignment that is persistent and does not change and is not attached to a lease. Dynamic IP addresses are issued using DHCP and will change when the lease expires. The others are types of static or dynamic IP addresses.

Screensaver locks enhance security by preventing unauthorized access when a user is away from their workstation. After the screensaver activates, the workstation locks, and the user must authenticate to unlock it, effectively securing the system from unauthorized use.

Checking for sufficient storage space is the most logical first step in this situation because insufficient storage can prevent applications from updating, despite the presence of an active internet connection. Clearing the app cache, checking app compatibility, or reinstalling the app might address other issues but aren't typically the first steps if the primary issue is just an update failure.

A website can have a valid certificate, meaning it has been issued by a Certificate Authority, and still not be trusted by the user's browser. This happens when the Certificate Authority issuing the certificate is not recognized or trusted by the browser. This could happen because the Certificate Authority is not well-known or has been compromised in the past. The browser could also be configured to only trust certificates from specific Certificate Authorities.

Utilizing a change request form that includes the purpose and scope of the proposed change along with required approvals from relevant stakeholders - This is correct. A formal change request process is fundamental to change management, ensuring changes are evaluated, approved and implemented in a controlled and predictable manner. It minimizes risks by documenting the change's purpose, scope, and impact and ensures accountability by involving relevant stakeholders.

Implementing changes without requiring documentation or formal approval processes - Making changes without proper documentation or approvals increases the risk of unexpected issues, miscommunication, and potential disruptions to the IT environment.

Phasing in changes gradually without consulting the change board - While gradual implementation can reduce risks, bypassing the change board undermines the formal review and approval process, which is essential for controlled changes.

Providing users with advance notice of changes without evaluating risks or impacts - Informing users is important, but not evaluating risks or impacts before implementing changes can lead to unforeseen complications and disruptions.

Windows 10 comes in several different editions: Home, Pro, Pro for Workstations, S, Education, Pro Education, Enterprise, Enterprise LTSC, X, IoT and Team. The remaining options (with Bing, Starter and Ultimate) have been used in past Windows editions but are not available with Windows 10.