CompTIA A+ Practice Test (220-1102)

The best first step in troubleshooting unexpected high data usage is to investigate which specific application is responsible. By navigating to the mobile device's settings and viewing the data usage breakdown by application, a technician can identify if a known application is consuming more data than expected or if an unknown or suspicious application is the culprit. A factory reset is a drastic measure to be used only after other troubleshooting fails. Disabling Wi-Fi does not help diagnose the root cause of cellular data consumption. Changing the data plan only masks the problem without addressing the potential security risk or a misbehaving application.

In Linux and Unix systems the cp command is used to make copies of a file. For example:

cp existing_file.txt new_file.txt

netstat displays active TCP connections, ports on which the computer is listening, Ethernet statistics, the IP routing table, IPv4 statistics (for the IP, ICMP, TCP, and UDP protocols), and IPv6 statistics (for the IPv6, ICMPv6, TCP over IPv6, and UDP over IPv6 protocols). Used without parameters, this command displays active TCP connections.

The easiest method to upgrade from Windows 10 Home to Windows 10 Pro is to perform an in-place upgrade using a legitimate license key for Windows 10 pro, this allows for the transition without needing to perform a full reinstallation of the operating system.

The other options would require more complex processes or may not result in a direct upgrade to the desired version.

The correct answer is the UNC (Universal Naming Convention) path which follows the format: \ServerName\ShareName. This path format is used to access shared resources like printers within a network. Incorrect options such as 'C:\network\printername' represent local paths or incorrect syntaxes for network resources.

Distributing the application through encrypted physical media is the best method in this scenario to ensure the integrity and security of the application. While downloadable content is convenient, it is more vulnerable to interception and tampering during transmission. Encrypted physical media helps guarantee that the application has not been tampered with, as the recipient can verify the integrity of the encryption upon receipt. This method is secure and suitable for scenarios where the size of the application is large, and distribution speed is not the primary concern.

Shoulder surfing is a social engineering method where an attacker physically observes someone’s screen or keyboard to steal sensitive information, like passwords or PINs, without their knowledge. This technique relies on being close to the target, often in public spaces, to view confidential details.

Incorrect Answers: Keylogging involves tracking keystrokes through software or hardware to capture information, unlike shoulder surfing, which requires direct observation. Installing malware to remotely control another person’s device is a form of cyberattack that doesn’t need the attacker to be physically near the victim. Phishing uses deceptive emails or messages to trick users into providing sensitive information and does not involve observing the user in person.

nslookup - This is correct. The nslookup command is used to query the Domain Name System (DNS) to obtain the IP address associated with a specific website or domain name. It provides a direct way to find the IP address of a website.

ping - The ping command sends ICMP echo requests to a domain or IP address to check connectivity. While it can sometimes resolve a domain name to an IP address, its primary purpose is to test the reachability of the destination, not to look up IP addresses specifically.

ipconfig - The ipconfig command displays the network configuration of the local machine, such as IP addresses, subnet masks, and default gateways. It does not provide information about external websites or their IP addresses.

tracert - The tracert (Trace Route) command traces the path packets take to reach a destination. While it can show the resolved IP address of the destination during the trace, its main function is to map the route to the target, not to look up the IP address directly.

Robocopy (Robust File Copy), refers to a powerful command-line utility in Windows that excels in advanced file copying and synchronization tasks. It stands out for its ability to mirror directories, copy NTFS permissions, automatically retry failed copies, and resume partially copied files.

These features make "robocopy" particularly well-suited for complex copying scenarios, backups, and large-scale data migrations where precision and resilience are crucial.

PowerShell scripting (.ps1) is the most comprehensive and suitable tool for gathering rich and detailed inventory data across a network of Windows-based workstations. It can easily access a wide range of system information through cmdlets, which are specialized commands, and can interact with Windows Management Instrumentation (WMI) to retrieve detailed inventory data.

On Linux and Unix systems the ls commands lists the contents of the current directory. This includes both files and subdirectories by default.

The correct tool for this task is 'ipconfig' as it displays the current TCP/IP network configuration values, allowing users to see IP addresses, gateway information and other relevant network settings.

Other options such as 'tracert' track network paths and 'ping' test connectivity, but they do not show configuration details.

By checking the status of processes and restarting any that are malfunctioning, you can often restore normal functionality. This approach helps address transient issues without needing to reboot the entire system. The other options involve more disruptive measures, such as reinstalling drivers or rebooting, which may not directly address the root problem.

When a keylogger is suspected, it is crucial to first disconnect the computer from the network to prevent the potential exfiltration of sensitive data through the network. By isolating the computer, you stop the keylogger from possibly sending data to a malicious actor. Running an antivirus program is also important, but it should be done after isolating the computer to prevent further data leaks. Updating the antivirus definitions is a part of running the antivirus scan but it is not the first action to take if the computer is currently compromised. Checking the browser extensions could help if the keylogger was a malicious extension, but this is less likely the first step compared to disconnecting from the network due to the immediacy of data breach risks posed by keyloggers.

To manage security settings and software installation for users and computers - This is correct. Group Policy is a feature in Windows that allows administrators to centrally manage and configure operating system settings, security configurations, software installations, and user environment settings for both users and computers in an Active Directory domain.

To control user access to internet downloads - While Group Policy can be used to manage internet-related settings, its scope is much broader and includes managing a variety of system and user configurations beyond internet downloads.

To configure hardware settings for workstations only - Group Policy is not limited to hardware settings or workstations. It can configure settings for both users and computers across an entire domain, including policies related to software, security, and more.

To enforce password policies for individual user accounts - While Group Policy can enforce password policies, it does so at a domain or organizational level, not for individual user accounts. Managing individual accounts is handled through other tools like Local Users and Groups or Active Directory Users and Computers.