Correct Answer. B. Shielded Twisted Pair (STP) STP cables are designed with a shielding that helps reduce electromagnetic interference, making them ideal for environments with high EMI, such as areas with heavy machinery and numerous wireless devices. The shielding helps maintain data integrity and network stability.
Option A is incorrect because UTP cables do not include additional shielding against EMI, making them less suitable for high-interference environments.
Option C is incorrect because while coaxial cables are more resistant to EMI than UTP, STP cables are specifically designed to combat interference in Ethernet networks.
Option D is incorrect because although fiber optic cables are immune to EMI, they are typically more expensive and complex to install compared to STP cables for typical Ethernet networks.

Documenting each step, the rationale, and the results provides a clear and comprehensive record that is invaluable for future reference. This detailed approach helps in replicating the solution for similar problems and aids in training and development.
Option A is incorrect because documenting only the errors without the resolution steps lacks the necessary instructional detail.
Option C is incorrect as a summary does not capture the required detail to fully understand or replicate the troubleshooting process.
Option D is incorrect because ignoring diagnostic steps leaves out critical context that may be necessary for understanding the full scope of the solution.

Correct Answer. B. Upgrade the physical hard drive to a higher capacity model Upgrading to a higher capacity hard drive is the most straightforward and reliable solution to ensure that there is enough disk space for the new development environment, avoiding the risk of running out of space during critical tasks.
Option A is incorrect because archiving can take time and may not free up enough space quickly.
Option C is incorrect because while removing temporary files can free up some space, it is unlikely to recover 15 GB needed to meet the installation requirement.
Option D is incorrect because partitioning does not increase the total amount of available disk space; it merely allocates it differently.

Correct Answer. B. Firewall settings on the PCs that cannot receive scans Firewall settings on individual PCs can block incoming network communications, such as scans sent from a networked scanner, especially if some PCs can receive scans and others cannot.
Option A is incorrect. Incorrect IP configuration would likely prevent the scanner from communicating with any PC on the network.
Option C is incorrect. Document format issues would not selectively affect communication with only some PCs.
Option D is incorrect. Network speed issues might slow down communication but wouldn't selectively block scans from reaching only certain PCs.

Connecting to an anti-static mat effectively dissipates static charges, reducing the risk of ESD when handling and installing electronic components like a hard drive. This is a recommended practice in environments where electronic components are handled.
Option A is incorrect because insulating the work area with plastic sheets can actually increase the risk of static build-up.
Option B is incorrect as using tools with insulated handles protects against electrical shock but does not necessarily prevent ESD.
Option D is incorrect because while anti-static sprays can help reduce static build-up, directly grounding oneself with an anti-static mat is a more effective and controlled measure.