Hardware vs. Software basics.

Audio driver helps sound hardware work with the system. For exams check driver also in sound problems.

Network driver helps hardware network card work with the system. For exams check both hardware and driver in internet issues.

MAC address is related to unique identity of a network interface. For exams do not treat it as a normal website address.

IP can change with software configuration while MAC relates to network interface. For exams keep both addresses separate.

Network stack handles rules and layers of data communication. For exams separate network card hardware and stack software.

The direct answer is option A, software security configuration. A firewall monitors network traffic entering or leaving a computer or network. Firewall rules specify which connections or types of traffic may be allowed and which must be blocked. These rules are settings or configuration instructions implemented by firewall software or a firewall device, so option A is the correct classification. Option B, a monitor screw, is a physical hardware part and has nothing to do with deciding network access. Option C, printer ink, is a consumable physical material used for printing and does not control network traffic. Option D, a mouse wheel, is a physical input component used for scrolling, not a security rule. A rule itself is not a screw, ink or wheel; it is a logical instruction that controls communication. Although some firewalls are built into hardware, the wording “firewall rule” refers to the security configuration or policy, not to a physical part. Exam cue: allow, deny, block, permit and network traffic are strong clues for firewall configuration.

In security hardware device and software rules can work together. For exams identify form and function separately.

TPM can be hardware related to security keys and trust. For exams identify it among security hardware examples.

Security technologies can have different hardware forms. For exams check device location and function.

Secure boot can help block untrusted boot software. For exams connect it with UEFI and security.

A rootkit can secretly affect system control. For exams understand it as a security threat not a normal file.

Both can be used for isolation and security. For exams also remember their difference in level and resource use.

A container is not a real physical machine but software based isolation. For exams do not get confused by the name.

The word virtual often shows something created or managed by software. For exams separate physical and virtual.

API is communication between software components while user interface is for human use. For exams keep both interfaces separate.

An SDK can provide tools to help developers create software. For exams do not treat it as a hardware device.

A library makes repeated tasks easier in software development. For exams do not confuse it with a building library.

Runtime environment can provide services needed to run a program. For exams do not treat it as a hardware component.

A program can be a file in storage and becomes a process when running. For exams focus on running state.

A thread is part of software execution and is not hardware. For exams treat process and thread as software concepts.

Multithreading is a software design that can affect use of CPU resources. For exams understand relation between software structure and hardware use.

Power setting is software control that can change behavior of hardware like display. For exams understand the effect of settings.

Direct answer: Option A is correct. Hardware means a physical computer part, while software means programs and instructions. A hardware fault can sometimes produce symptoms that look like a software problem, so the visible symptom alone is not enough to identify the cause. Step by step: RAM temporarily holds data and instructions; if RAM is defective, data may be corrupted or unavailable; the operating system or an application may then stop responding or close unexpectedly; therefore faulty RAM can cause app crashes. Option A is correct because it shows a real hardware-to-software symptom relationship. Option B is wrong because a broken mouse may prevent movement or clicking, but it does not always update a browser. Option C is wrong because a damaged monitor may show no picture or distorted images, not create passwords. Option D is wrong because a faulty printer can cause printing errors, but it does not make the CPU faster. Memory cue: a physical fault can imitate a program fault, so test both hardware and software.

In hard questions names can confuse so check many clues. For exams identify device program data and setting separately.

A high temperature with a stopped fan requires layered troubleshooting rather than checking an unrelated application setting. At the hardware level, inspect whether the fan is physically blocked, damaged, disconnected, or unable to receive power. At the electrical level, check the connector, supply, and relevant control circuit. At the software or firmware level, verify temperature readings, fan-control rules, BIOS or embedded-controller behaviour, and driver or system-management settings. Dust and a faulty sensor can also affect the diagnosis. Browser themes, document fonts, and printer-paper colour have no meaningful role in cooling. Thus option A gives the appropriate combined scope.