*Cable termination issues (e.g., improper crimping, loose connectors) can cause connectivity failures.
*Power budget (A) applies to PoE devices, not general cabling issues.
*Device requirements (B) relate to software/hardware compatibility, not wiring faults.
*Port status (C) would help if the issue was switch-related, but since moving devices didn't help, it's likely a cabling issue.
#Reference: CompTIA Network+ N10-009 Official Documentation - Cabling & Physical Layer Troubleshooting.

Link aggregation (also known as port trunking or EtherChannel) combines multiple network connections in parallel to increase throughput and provide redundancy. When two switches are connected with multiple links without any additional configuration, a Layer 2 loop may occur. Link aggregation prevents these loops by treating the multiple connections as a single logical link, using a protocol such as LACP (Link Aggregation Control Protocol).
From Andrew Ramdayal's guide:
"Link aggregation allows you to combine multiple network connections to increase the bandwidth and provide redundancy. It helps prevent Layer 2 loops when connecting switches with multiple links by making them operate as a single logical interface."

The correct answer is Integrity because a hashing algorithm ensures that data has not been altered. According to CompTIA Network+ (N10-009) security objectives, hashing is a cryptographic process that takes input data of any size and produces a fixed-length output known as a hash value or digest. If even a single bit of the original data changes, the resulting hash value will be significantly different.
Hashing is commonly used to verify file integrity, validate message authenticity, and securely store passwords. For example, when downloading software, the vendor may publish a hash value so users can calculate the hash of the downloaded file and confirm it matches, ensuring the file was not tampered with.
Non-repudiation (Option A) typically requires digital signatures that combine hashing with asymmetric encryption to verify the sender's identity. Confidentiality (Option C) is achieved through encryption, which protects data from unauthorized access. Availability (Option D) refers to ensuring systems and data are accessible when needed and is not related to hashing functions.
Therefore, hashing primarily provides data integrity verification.

A warm site is a compromise between a hot site and a cold site, providing a balance between cost and recovery time. It is partially equipped with the necessary hardware, software, and infrastructure, allowing for a quicker recovery compared to a cold site but at a lower cost than a hot site.
* Recovery Time: Warm sites can be operational within hours to a day, making them suitable for non- critical applications that can tolerate short downtimes.
* Cost-Effectiveness: Warm sites are more economical than hot sites as they do not require all systems to be fully operational at all times.
Network References:
* CompTIA Network+ N10-007 Official Certification Guide: Discusses disaster recovery strategies and the different types of recovery sites.
* Cisco Networking Academy: Provides training on disaster recovery planning and site selection.
* Network+ Certification All-in-One Exam Guide: Explains the characteristics of hot, warm, and cold sites and their use cases in disaster recovery planning.
Warm sites offer a practical solution for maintaining business continuity for non-critical applications, balancing the need for availability with cost considerations.