CompTIA N10-008 Exam Practice Questions (P. 2)

GPT-4o - Answer

Absolutely right, a CNAME record, or Canonical Name record, is indeed used as an alias that allows one domain to refer to another domain. This is super useful for managing multiple services with a single IP address. For instance, you might have a web server and you want to manage both your main site and a sub-domain pointing to the same address without having to manage multiple A records. CNAME simplifies this by mapping multiple aliases to the true domain name. It's a straightforward DNS feature but vital for efficient domain management.

GPT-4o - Answer

Adjusting the DNS settings in the DHCP scope for the new building is spot on. When users can hit up the net but not internal sites, it's usually a sign that their devices are pulling public DNS info that has no clue about your internal site addresses. Fixing the DHCP config to serve up the correct internal DNS details will get everyone connected to the intranet without a hitch.

GPT-4o - Answer

The most likely reason the fiber connection isn't working in this scenario is due to the TX/RX reversal. In a fiber setup involving multiple connections and patch panels as described, it’s common for the transmit and receive fibers to be inadvertently swapped. This misalignment can easily disrupt the signal flow, preventing the system from establishing a proper connection. Even though the LC connectors are designed to secure TX and RX in specific positions, user error during the manual handling of the cables at any point could lead to reversed connections, making this the foremost issue to investigate and rectify.

GPT-4o - Answer

Absolutely, the MAC table is the go-to resource when you need to find a device using its physical network address on a switch. A MAC table, or Media Access Control table, helpfully connects each network device's unique MAC address to the specific port on the switch where it's connected. So, when looking to locate a device on a network, reviewing the MAC table will tell you exactly where it’s plugged in. Simple and efficient!

GPT-4o - Answer

NIC teaming, also termed as network interface card teaming or link aggregation, is the practice of merging multiple NICs into a singular logical interface. It enhances network reliability by allowing a server to maintain its connection to the LAN despite the failure of a port on the switch. Essentially, if one NIC or connection point goes down, the others continue managing the traffic, ensuring minimal to no network downtime. This method not only provides redundancy but also boosts the overall bandwidth capability, making it an optimal choice for maintaining connectivity in case of hardware failures.

GPT-4o - Answer

Absolutely, a Content Delivery Network (CDN) nails it for minimizing latency specifically in regions with a high concentration of users. The CDN effectively stores cached versions of content across multiple locations, which allows for faster access and lower latency as data has a shorter distance to travel to the user. This strategic distribution is key in optimizing speeds for widespread content delivery unlike load balancing, which primarily focuses on distributing traffic across servers to prevent any single server from becoming overwhelmed, but doesn't necessarily decrease distance-based latency. So, whenever global content distribution with reduced latency is the aim, CDNs are the go-to technology.