CompTIA A+ Practice Tests | 220-1101 | 220-1102

The subnet mask is used to identify the host identifier and the network identifier uniquely in combination with the IP address. The subnet mask is used by the TCP/IP protocol to determine whether a host is on the local subnet or a remote network. The default gateway parameter is the IP address of a router to which packets destined for a remote network should be sent by default. This setting is not required, but if you do not have one included, your network traffic can never leave the local area network. Windows Internet Name Service (WINS) is a legacy computer name registration and resolution service that maps computer NetBIOS names to IP addresses. The domain name system (DNS) protocol is the protocol used to provide names for an IP address based on their mappings in a database using TCP/UDP port 53.

Since she requires to detect unauthorized access, video surveillance should be utilized. Closed-circuit television is a type of video surveillance where video cameras transmit a signal to a specific place using a limited set of monitors. If she were trying to prevent access from occurring, the other three options would provide that. Still, they cannot detect unauthorized access (for example, if the attacker stole a valid smart card or access badge). A biometric lock is any lock that can be activated by biometric features, such as a fingerprint, voiceprint, or retina scan. Biometric locks make it more difficult for someone to counterfeit the key used to open the lock or a user’s account. A smart card is a form of hardware token. A smart card, chip card, PIV card, or integrated circuit card is a physical, electronic authorization device used to control access to a resource. It is typically a plastic credit card-sized card with an embedded integrated circuit chip. In high-security environments, employee badges may contain a smart card embedded chip that must be inserted into a smart card reader to log in or access information on the system. A badge reader can be used to read a security badge using RFID, a smart card, or a barcode to authenticate a user.

A password policy is a set of rules designed to enhance computer security by encouraging users to employ strong passwords and use them properly. A password policy is often part of an organization’s official regulations and may be taught as part of security awareness training. It contains items like password complexity, password age, and password history requirements.

Based on the error shown, it appears that the users are still mapped to the old server and not the new NAS. This is a common issue and oversight that occurs when companies migrate from one server to another. Even if every computer has an S:\ (share drive) shown, it is just a link to a network resource (like \\server10\shared\). If the new server is not named “server10” and is called “server11”, then the mapping needs to be redone to reflect \\server11\shared, for example.

Personally identifiable information (PII) is data used to identify, contact, or locate an individual. Information such as social security number (SSN), name, date of birth, email address, telephone number, street address, and biometric data is considered PII. Protected health information (PHI) refers to medical and insurance records, plus associated hospital and laboratory test results. Proprietary information or intellectual property (IP) is information created and owned by the company, typically about the products or services that they make or perform. Controlled Unclassified Information (CUI) is federal non-classified information that must be safeguarded by implementing a uniform set of requirements and information security controls to secure sensitive government information.

Two-factor authentication (also known as 2FA) is a method of confirming a user’s claimed identity by using a combination of two different factors: (1) something you know, (2) something you have, or (3) something you are. Out of the options provided, only a key fob (something you have) and a password (something you know) meet the requirements of 2FA. If you have two factors from the same type/category, like something you know (username and password), this is only considered a single factor of authentication.

A personal license is an option for private individuals who purchase a license with their own funds and solely for their own use. Personal licenses are not to be purchased, refunded, or in any way financed by companies. A business license is the standard licensing option for organizations and business entities. With Microsoft, a company can purchase anywhere from 1 to 300 user licenses under the business license program. An enterprise license is like a business license, but for an unlimited number of users and is designed for large corporate and government networks. Open-source is software that also makes the program code used to design it available. Generally, open-source software is free to use and distribute, but you may need to pay for ongoing support if you have technical issues. The idea is that other programmers can investigate the program and make it more stable and useful. An open-source license does not forbid commercial use of applications derived from the original, but it is likely to impose the same conditions on further redistributions.

The gpupdate command refreshes a computer’s local Group Policy and any Active Directory-based group policies. This command works on Windows systems. The gpupdate command can be used to restrict access to USB removable storage devices (like USB thumb drives and hard drives). In some organizations, USB storage devices are blocked for security reasons to prevent security leakage of confidential data and the penetration of viruses into the internal corporate network. A Group Policy is the primary administrative tool for defining and controlling how programs, network resources, and the operating system operate for users and computers in an organization. In an active directory environment, Group Policy is applied to users or computers based on their membership in sites, domains, or organizational units. The gpresult command is used to display the Resultant Set of Policy (RSoP) information for a remote user and computer. Because you can apply overlapping policy settings to any computer or user, the Group Policy feature generates a resulting set of policy settings when the user logs on. The gpresult command displays the resulting set of policy settings that were enforced on the computer for the specified user when the user logged on. The diskpart command is a command-line disk-partitioning utility available for Microsoft operating systems. You can use it to view, create, delete, and modify a computer’s disk partitions. The system file checker (SFC) command is a utility in Windows that allows users to scan for and restore corrupted Windows system files from the command line.

An electrostatic discharge (ESD) mat is made from materials that dissipate static to protect sensitive electronic equipment and components. An electrostatic discharge (ESD) is the release of a charge from metal or plastic surfaces that occurs when a potential difference is formed between the charged object and an oppositely charged conductive object. This electrical discharge can damage silicon chips and computer components if they are exposed to it.

Python is a general-purpose programming language that can develop many different kinds of applications. It is designed to be easy to read, and the programs use fewer lines of code compared to other programming languages. The code runs in an interpreter. Python is preinstalled on many Linux distributions and can be installed on Windows. Python scripts are saved using the .py extension. A shell script is a file that contains a list of commands to be read and executed by the shell in Linux and macOS. A .sh file is used for a shell script and its first line always begins with #!/bin/bash that designates the interpreter. This line instructs the operating system to execute the script. Shell scripts allow you to perform various functions. These functions include automation of commands and tasks of system administration and troubleshooting, creating simple applications, and manipulating text or files. VBScript is a scripting language based on Microsoft’s Visual Basic programming language. Network administrators often use VBScript to perform repetitive administrative tasks. With VBScript, you can run your scripts from either the command-line or the Windows graphical interface. Scripts that you write must be run within a host environment. Windows 10 provides Internet Explorer, IIS, and Windows Script Host (WSH) for this purpose. Windows PowerShell enables you to perform management and administrative tasks in Windows 7 and later. It is fully integrated with the operating system and supports both remote execution and scripting. Microsoft provides the Windows PowerShell Integrated Scripting Environment (ISE) to help create and manage your Windows PowerShell scripts. If you want to save a series of PowerShell commands in a file to rerun them later, you effectively create a PowerShell script by creating a text file with a .ps1 extension. The file can contain a series of PowerShell commands, with each command appearing on a separate line.

Based on the symptoms, it appears that the system may be infected with malware. Therefore, it would be best to attempt to remediate the system by updating the anti-virus, performing a full system scan, and verifying that the web browser and email client’s settings are correct.

One of the features of WPA3 (WIFI6) is enhanced open. Enhanced Open enables encryption for traffic being sent and received over a wireless network when still using open authentication.

Developer mode is used on an Android device to show additional diagnostic information when using apps or making network connections.

Since the customer’s IP address is 169.254.34.12, it is an APIPA address. Since the workstation has an APIPA address, it means the DHCP server was unreachable.

Automatic updates ensure the antivirus program receives the latest threat definitions, maintaining protection against new malware.

The system administrator should disable the user’s account to prevent further login attempts.

Full storage encryption is used to encrypt the user and system data stored in the device’s internal storage.

Tim should select the private network type when connecting to the wireless network in his office so that he can access the networked printer.

Windows Remote Management (WinRM) is the best choice because it allows administrators to execute remote PowerShell commands and manage Windows systems securely over a network using web-based protocols.

The chmod command sets the permissions of files or directories on a Linux system.

Setting a document to view-only prevents unauthorized changes while still allowing employees to read its contents. Printing copies removes collaboration features and prevents updates from being seen in real-time. Locking the document completely would block access, making it unusable for review. Relying on employees to avoid making changes does not enforce restrictions and may lead to accidental edits.

While Edward was on vacation, the network file share’s permissions have likely been modified. Based on the fact that Edward’s account is connected to the domain and can send/receive emails, it is not his user account’s permissions causing the issue. The internet security options would also prevent him from sending/receiving mail, so that can be eliminated. Even if the operating system were updated, that would not affect the shared inboxes since they reside on the network file shares and not Edward’s computer.

Disabling unnecessary startup programs improves boot times and reduces memory usage, especially after updates that may enable additional background processes. Uninstalling the update should be a last resort if performance remains poor. Upgrading RAM can help but isn’t necessary when sufficient memory is already present. A clean installation is a more time-consuming solution that should be reserved for persistent issues​.

RAID 10 provides the system with both speed and efficiency. With RAID 10, the system has a mirror of striped disks for full redundancy and double fault tolerance. RAID 10 configuration (also known as RAID 1+0) requires a minimum of four disks and mirrors data across a striped disk pair. This is not only the best option presented in this question but also the most expensive option. A RAID 0 provides disk striping (speed/performance) but not mirroring. A RAID 1 provides mirroring but not striping. A RAID 5 provides block-level striping with distributed parity using a minimum of three disks.

The cp command is a command-line utility for copying files and directories. It supports moving one or more files or folders with options for taking backups and preserving attributes. Copies of files are independent of the original file, unlike the mv command.

JavaScript is a scripting language that is designed to create interactive web-based content and web apps. The scripts are executed automatically by placing the script in the HTML code for a web page so that when the HTML code for the page loads, the script is run. JavaScript is stored in a .js file or as part of an HTML file.

Based on the symptoms, the most likely cause is an internet connectivity failure. Apple iPhones use internet connectivity and data to send their text messages by default. If the smartphone’s internet connection is offline, then the phone will not receive emails or SMS messages from other iPhone users.

Restarting the Windows Explorer process is the correct first step because the black screen with a cursor often indicates that explorer.exe did not start properly. Restarting it via Task Manager restores the desktop environment.

If an automated system update fails to install, you should research the error number for the failed update to determine if the issue is a known error. Based on the error code, you can then determine the best method to overcome the issue. For example, a common cause of errors is inadequate space on the hard disk.

Spoofing is often used to inject the attacker into the conversation path between the two parties. Spoofing is the act of disguising a communication from an unknown source as being from a known, trusted source. An on-path attack is an attack where the attacker secretly relays and possibly alters the communications between two parties who believe they are directly communicating with each other.

A clean install is an installation of the new operating system on a new computer or a computer that has been recently formatted. A clean install will completely replace the operating system software on the computer with the new operating system. During a clean install, all of the user’s data, settings, and applications will be deleted. An in-place upgrade will preserve applications and data. A refresh installation keeps user data and apps. A repair installation replaces OS files without deleting data.

If your battery is dying faster than in the past, check whether apps are using too much battery. You can force stop or uninstall problem apps. A display set too bright won’t kill a battery in 90 minutes. Rebooting or enabling airplane mode won’t resolve underlying app or malware issues.

Compatibility mode in Windows 11 allows legacy applications to run as if they are on an earlier version of Windows, helping resolve crashes related to older software. Reinstalling Windows 10 is unnecessary unless compatibility mode fails. Adding RAM won’t fix compatibility. Disk Cleanup won’t resolve crashes.

An Apple ID is a user account on an Apple device used to sign in to the App Store, access iCloud, and more. Spotlight is the macOS search feature. Keychain manages cached passwords. Passwd changes local system account passwords.

Gestures are finger movements on a MacBook trackpad or Magic Trackpad used to control macOS features like Smart Zoom, Rotate, and Scroll Direction. Motions, signals, and movements are not valid macOS trackpad settings.

Password complexity ensures passwords include uppercase, lowercase, numeric, and special characters. Password length sets minimum size. Password history prevents reuse. Password expiration defines reset timelines.

The 3-2-1 backup rule requires 3 copies of data, stored on 2 different types of media, with 1 copy off-site. FIFO overwrites the oldest backups. GFS uses grandfather-father-son scheduling. Tower of Hanoi rotates tapes to extend lifespan.

This is an example of a cross-site scripting (XSS) attack, where an attacker injects malicious JavaScript into web pages to create pop-ups and steal credentials. CSRF forces unintended actions. A rootkit hides system access. SQL injection targets databases, not pop-up credential theft.

The recovery partition contains a system image used to restore the PC to factory state. Swap partitions are for Linux memory management. Primary partitions are limited to four under MBR. Extended partitions hold logical drives, not recovery images.

Folder Options (File Explorer Options) allows you to enable viewing hidden files such as ntuser.dat, which stores user profile settings. User Accounts manages accounts. Internet Options controls browsing settings. Display Settings change monitor resolution and appearance.

Remote Desktop Protocol (RDP) is a Microsoft protocol designed to facilitate secure and encrypted remote access with a graphical interface, making it the best choice here.

Since the box is over 50 pounds, you should ask a coworker to team lift it with you. Team lifting prevents injury and follows workplace safety guidelines.

A cloud app that syncs data continuously consumes large amounts of bandwidth, slowing down other traffic on the network.

A very short but significant over-voltage event is called a power spike.

If an encrypted email does not open, verify that your digital certificate is installed on the device, as this is required to decrypt the email.

A rollback plan is the most important element. It ensures the system can be restored to its prior state if the change causes issues.

A BYOD (Bring Your Own Device) policy defines requirements for personal devices connecting to the corporate network.

Disabling user accounts at the end of each summer allows them to be re-enabled when interns return without losing data.

This is explicit allow for inbound (must match a rule) and implicit allow for outbound (allowed unless blocked).

WPA2 provides the strongest wireless encryption, and multifactor authentication ensures strong desktop login security.

Partitioning is the act of dividing a physical disk into logically separate storage areas, often referred to as drives. Each partition can be formatted with any file system type. Since there are 4 distinct partitions on this single hard drive, it can support up to 4 different file systems.

An acceptable use policy (AUP) is a document stipulating constraints and practices that a user must agree to for access to a corporate network or the internet. For example, an AUP may state that they must not attempt to break any computer network security, hack other users, or visit pornographic websites from their work computer.

Single-factor authentication (SFA) is a process for securing access to a given system that identifies the party requesting access through only one category of credentials (something you know, something you have, something you are, something you do, or somewhere you are). The most common example is when a user is prompted to enter their username and password.

When authorized users access devices through unintended connections or unauthorized users get their hands on absconded devices, they can access data on the device(s) they were never intended to see. This resulted in leaked personal files.

Windows 10 has support for BitLocker in every version except the Windows 10 Home edition. BitLocker provides support for full disk encryption using AES with a 128-bit or 256-bit key.

The gpresult command is used to display the Resultant Set of Policy (RSoP) information for a remote user and computer. It shows the effective policies applied when the user logged on.

Simultaneous Authentication of Equals (SAE) is a password-based authentication and key agreement method used in WPA3 that replaced the older 4-way handshake. The SAE handshake is also known as the dragonfly handshake.

Contracting with certified electronics recyclers ensures environmentally safe handling, proper recycling of components, and adherence to regulatory guidelines. Other options do not meet environmental compliance standards.

A server lock is a physical locking mechanism installed on a server cabinet to prevent unauthorized access to servers. It could be a cipher lock, biometric lock, or keyed lock depending on the security needs.

To reset the BIOS password, unplug the PC, open the cabinet, remove the CMOS battery for 15–30 minutes, and then put it back. This resets all BIOS settings including the password.

A surge suppressor defends against possible voltage spikes that could damage your electronics, appliances, or equipment. A power strip will not protect against voltage spikes. A UPS or line conditioner could protect against voltage spikes, but they cost much more than a surge suppressor. A line conditioner is a device that adjusts voltages in under-voltage and overvoltage conditions to maintain a 120 V output. Line conditioners raise a sag or under-voltage event back to normal levels, but they cannot protect the line from a complete power failure or power outage. A UPS provides near-instantaneous protection from input power interruptions by using a battery backup.

A magnetic disk can be mechanically shredded, incinerated, or degaussed in specialist machinery. A less expensive method is to destroy the disk with a drill or hammer. This is a zero-cost option since most people already own a hammer or drill. The hard drive is physically destroyed, rendering the data on it inaccessible to most users. This method should NOT be used for drives containing the most highly confidential data because it will leave fragments that could be analyzed using specialist tools.

Based on the description, the ethical hacker conducted a very specialized type of social engineering attack known as tailgating. Tailgating involves someone who lacks the proper authentication following an employee into a restricted area.

Malware can store copies of itself in System Restore points, allowing reinfection if the system is reverted to an earlier state. Disabling System Restore prevents malware from being restored after removal.

The grep command searches plain-text data sets for lines that match a regular expression. Grep is supported on Unix, Linux, and macOS.

The Processes tab in the Task Manager allows you to manage and terminate running apps and services, including unresponsive programs.

FAT32 has a maximum file size limit of 4GB. The best solution is to reformat the drive to NTFS, which supports much larger files.

The New Technology File System (NTFS) is the default file system for Windows 10 installations. It supports large volumes and files with advanced features like permissions and encryption.

The shutdown /h command places the workstation into sleep or hibernation mode. Other options include /r (reboot), /s (shutdown), and /l (log off).

A distributed denial-of-service (DDoS) attack occurs when multiple systems flood the bandwidth or resources of a targeted system, usually one or more web servers, making them unavailable to users.

When a hurricane causes a power outage on an island, it can be hours, days, or even months before the power is fully restored. Since the company is located in Puerto Rico, they should have a large capacity diesel generator to power their entire office during a long-term power outage. After Hurricane Maria in 2017, some parts of Puerto Rico went without grid power for nine months. For example, we have multiple redundant and high-capacity power sources at our Dion Training corporate offices to ensure we can remain online and work even without any grid power available.

Pagefile in Windows 10 is a hidden system file with the .sys extension stored on your computer’s system drive (usually C:\). The Pagefile allows the computer to perform smoothly by reducing the workload of physical memory. Simply put, every time you open more applications than the RAM on your PC can accommodate, the programs already present in the RAM are automatically transferred to the Pagefile. This process is technically called Paging. Because the Pagefile works as a secondary RAM, it is often referred to as Virtual Memory. Adding more physical memory will allow the computer to run faster, but increasing the pagefile size is an acceptable short-term solution.

Private IP addresses are any addresses in a specified range that are not allowed to be routed over the Internet. The class A private IP address range contains 10.0.0.0 to 10.255.255.255. The class B private IP address range contains 172.16.0.0 to 172.31.255.255. The class C private IP address range contains 192.168.0.0 to 192.168.255.255. The APIPA/link-local autoconfiguration range is 169.254.0.0 to 169.254.255.255.

The Device Manager is used to view and control the hardware attached to the computer. It allows you to adjust properties such as duplex settings. Other options like System, Internet Options, or Windows Defender Firewall are not used for hardware configuration.

APFS was designed to improve performance and security, particularly on SSDs. It includes built-in encryption, space sharing, and snapshot capabilities, which were not present in HFS+. Unlike NTFS, APFS is not natively compatible with Windows. APFS provides faster rather than slower read/write speeds, especially for SSDs.

The General Data Protection Regulation (GDPR) is a regulation created in the European Union that creates provisions and requirements to protect the personal data of EU citizens. Transfers of personal data outside the EU are restricted unless protected by like-for-like regulations.

Sally is MOST likely the victim of hijacked email. Hijacked email occurs when someone takes over your account and sends out messages on your behalf, often triggering bounce-backs. Phishing, spear phishing, and vishing are different attack methods but don’t match the described symptoms.

The Task Manager contains a Startup tab that shows all programs set to launch on boot. You can disable unwanted applications from there. System Information, Event Viewer, and UAC do not control startup programs.

WPA2-CCMP is the most secure option. Open provides no encryption. WEP is weak and breakable. WPA and WPA2-TKIP are less secure due to weaknesses in TKIP. Therefore, WPA2-CCMP is the correct choice.

Malware often targets the browser. Since this is a home user’s laptop, the proper next step is to clear cookies/history, enable a pop-up blocker, and scan for malware. Reporting or reimaging are not necessary as first steps.

Phishing is an email-based social engineering attack in which the attacker sends an email from a supposedly reputable source, such as a bank, to try to elicit private information from the victim. Spear phishing attacks focus on a targeted set of people, not just an indiscriminate large group. Whaling targets executives or wealthy individuals. Vishing is voice-based social engineering.

Clearing the app cache addresses potential issues with temporary files or data that might be causing the app to crash. This quick, non-disruptive action can often resolve minor app problems before trying more complex solutions.

Since Sally can connect to the internet, either WiFi or cellular is working, and the phone is not in airplane mode. Since AirPods use Bluetooth, the most likely issue is that Bluetooth is not enabled and must be turned on and paired.

Fingerprint recognition offers a quick, highly secure, and user-friendly screen lock method, reducing forgotten password issues. Swipe locks are insecure, complex passwords are hard to memorize, and voice recognition can be unreliable.

A Virtual Private Network (VPN) encrypts communications, protecting Susan’s data even on unsecured WiFi networks like hotels and coffee shops. Other options provide connectivity but not strong security.

SSH (Secure Shell) allows secure remote connections to Linux servers. Telnet transmits in plaintext and is insecure. RDP is for Windows desktops, and FTP is for file transfers, not secure remote access.

The copy command is used to copy files from one location to another. Diskpart manages partitions, chkdsk checks file systems, and net user manages accounts.

The mv command moves files or directories. It copies them to the new location and removes the original. cp only copies, rm deletes, and ls lists directory contents.

When an OS reaches EOL, it no longer receives security patches, leaving it vulnerable to new threats. While performance or compatibility may degrade, security vulnerabilities are the biggest risk.

Social engineering attempts, such as phishing, pretexting, and tailgating, can be mitigated with strong policies, procedures, and user training. Zero-day, DDoS, and on-path attacks require technical defenses.

HSM stands for Hardware Security Module and is a physical device that provides secure storage and management of encryption keys. It is designed to protect sensitive information and is the best choice for securely storing encryption keys.

NFC (Near Field Communication) allows for secure communication between devices in close proximity, making it ideal for contactless payments.

The print driver configured for PCL could cause garbled text if the printer does not support PCL, affecting only that user.

Check for removable drives as they may be identified as the boot drive mistakenly.

The laptop resolution is incorrect; adjusting to the LCD’s native resolution resolves the fuzziness.

The new memory is not compatible with the motherboard, causing beeping and blank screen on startup.

The collate setting causes the printer to finish printing all pages of one copy before starting the next.

Power off the phone and contact support to address the bulging battery issue, as it poses a safety hazard.

The digitizer is likely malfunctioning; it detects and responds to stylus input.

Checking the DNS configuration is essential to resolve website browsing issues.

A Lightning cable is used to charge a mobile device. This type of cable is commonly used to connect a mobile device, such as an iPhone or iPad, to a power source for charging.

Rapid elasticity refers to the ability for cloud resources to quickly and efficiently scale up or down based on demand, allowing for flexibility and cost-effectiveness.

Mouse, keyboard, and monitor are required because thin clients rely on these input/output devices to interact with cloud-hosted virtual desktops.

802.11ax, also known as Wi-Fi 6, operates in the 5 GHz band and provides approximately 10 Gbit/sec throughput under ideal conditions.

Performing a full backup of the server is the first priority to prevent data loss before further troubleshooting.

Restarting the tablet often resolves software glitches preventing touch input.

RAID 10 combines mirroring and striping to offer high performance and tolerance to two drive failures.

A cable modem is most likely connected using an F-connector, typically for coaxial cable-based internet or TV services.

A faulty crimp on an Ethernet connector causes intermittent connectivity, leading to port flapping on the switch.

During Bluetooth pairing, a PIN is used to authorize the connection between the headset and smartphone.

The most likely reason for the slow Internet connection is interference with the wireless signal. This can be caused by physical obstructions, other electronic devices, or neighboring wireless networks operating on the same channel.

Virtual Memory allows the operating system to use a portion of the SSD as temporary storage for data normally held in RAM, optimizing system performance.

The inverter powers the backlight of the LCD. A malfunctioning inverter causes the display to appear faint or dim.

Restarting the printer’s spooler often resolves issues with stuck print jobs by clearing the queue and resuming normal printing.

SDN (Software-Defined Networking) involves centralized management of network devices through APIs, matching the described deployment.

Voltage input options are crucial to ensure the power supply is compatible with the local power standards in the country where the server will be used.

Establishing a theory about the problem helps guide troubleshooting by forming a hypothesis for the cause of the beeping and dark screen.

Enabling Secure Boot in the BIOS helps ensure the system boots in UEFI mode as required by the drive.

Verifying the network printer name in the application ensures the correct printer is selected, resolving application-specific printing issues.

Metered cloud services monitor and track resource usage to enable billing based on consumption.

A flatbed scanner is designed specifically for capturing images from printed pages and saving them on a computer. It provides high-quality image capture and allows for easy saving and editing of the captured image.

RAID 5 with 10,000 RPM, 5 TB drives provides a good balance of performance and redundancy with support for single drive failure and meets the storage capacity requirement.

A punch-down tool is used to properly seat and connect wires into a 110 block, resolving connectivity issues.

Creating an IP reservation on the DHCP server ensures the laptop receives the same IP address every time based on its MAC address.

A crimper is the tool used to attach RJ45 connectors to Ethernet cables, making it the correct tool to repair the broken connector.

Modifying the BIOS to prioritize booting from the internal hard drive prevents the system from attempting to boot from the external USB drive.

A hub connects multiple computers by broadcasting traffic to all ports, which can cause network inefficiency as traffic increases.

The power supply is faulty as evidenced by the low voltage reading on the 12 volt pin, causing the system to fail POST and display.

A tone generator can be connected to one end of the cable and, using a probe, helps trace and locate the other end in the wiring closet.

ARM processors are commonly used in IoT devices due to their low power consumption and efficiency.

OLED technology does not require a backlight because each pixel emits its own light, allowing for deeper blacks and vibrant colors.

Creating an image of the hard drive and restoring it to the SSD ensures a seamless transfer including OS, applications, and data.

An unmanaged switch forwards traffic based on MAC addresses to the appropriate port within a network.

The motherboard battery has discharged, causing the loss of date and time settings upon powering on the computer.

A drawing pad (graphics tablet) is designed for use with a stylus and provides accurate input for creative tasks.

Cable broadband uses coaxial cable to deliver Internet data, voice, and video simultaneously.

Replacing the video cable is the best next step to rule out faulty or damaged cables causing flickering and pixelation.

Configuring an SPF record in the DNS specifies authorized mail servers and helps prevent email spoofing using the company’s domain.

Duplex printing allows printing on both sides of the page, enabling this requirement.

Verifying the wireless signal strength helps determine if weak or fluctuating signals are causing intermittent connectivity.

Port 25 is the standard port for SMTP, used for sending emails. Blocking this port prevents email transfers from the remote server.

Two-factor authentication requires two forms of identification, significantly improving logon security for the application.

Document archives are commonly stored on optical discs for long-term storage.

Authenticating to iCloud on all Apple devices enables seamless synchronization of files, contacts, and email messages across them.

A faulty power supply can cause the system to abruptly shut off and prevent powering on, indicated by no lights or fan activity.

A Mobile Device Management (MDM) system has disabled these features for security or compliance reasons.

The RJ11 connector is used to connect DSL modems to telephone lines provided by the Internet service provider.

Thermal printers are the quietest among the options because they use heat to print without impact mechanisms.

A damaged photosensitive drum causes a consistent black line on every printed page.

Liquid damage is most likely, as it can cause the phone to become unresponsive and the SIM card’s red label indicates liquid exposure.

802.11 refers to Wi-Fi technology, allowing the laptop to connect wirelessly to the smartphone’s hotspot and access the Internet.

A Bluetooth network is a Personal Area Network (PAN), enabling devices to communicate over short distances.

Two beeps and a blank screen typically indicate faulty memory (RAM).

Performing a hard drive diagnostic will verify whether the drive is failing and causing delays, enabling proactive replacement.

Using corporate Microsoft 365 allows easy synchronization of emails, contacts, and calendars across different platforms.

“Scan to SMB” means scanned files are stored on a Microsoft network share, such as a file server folder.

A damaged fuser causes toner not to properly bond to paper, resulting in smearing when touched.

Purchasing a high-capacity system and creating multiple virtual machines for each operating system allows testing without additional hardware.

Disabling the cellular radio at work conserves power by preventing the device from constantly searching for a weak cellular signal.

A hypervisor is required to create and run virtual machines by allocating hardware resources to them.

The subnet mask divides an IP address into network and host portions, defining the network size and host availability.

Resetting the page counter is the last step, indicating completion of maintenance tasks and ready printer operation.

The DHCP server being down causes the device to assign an APIPA address and no default gateway, preventing Internet access.

High availability ensures the application remains operational and accessible due to redundant servers across multiple data centers worldwide.

Checking the docking station network cable is the first step to identify potential connectivity issues causing the loss of Internet access.

Replacing the bad drive and resyncing the RAID 1 array restores redundancy and protects data.

Category 6 cable is rated for up to 10 Gbps over distances up to 55 meters, making it the minimum required for 15 meters.

A WAN connects multiple networks across wide geographic areas, such as different countries.

The DHCP server is down, so the workstation assigns itself an Automatic Private IP Address (APIPA) for local connectivity.

A firewall filters and controls network traffic based on security rules.