CompTIA N10-008 Practice Test - Questions Answers, Page 31

Thenetstat -ncommand displays active TCP connections, but addresses and port numbers areexpressed numerically and no attempt is made to determine names12.This option can be usefulfor checking the output in integer form, as well as for avoiding possible delays caused by nameresolution12.Thenetstatcommand without any parameters displays active TCP connections, but addressesand port numbers are resolved to their corresponding names, such as hostnames and servicenames12.This option can be less informative and more time-consuming than the -n option12

A camera is most likely to utilize PoE (Power over Ethernet). PoE is a technology that allows electrical power to be delivered over Ethernet cables. It is used to power a variety of devices, such as cameras, phones, access points, and other networking equipment.Cameras are particularly well-suited for PoE because they are often installed in locations where it is difficult or impossible to run electrical power. By using PoE, cameras can be powered directly over the Ethernet cable, eliminating the need for separate power cables and outlets.Other devices, such as printers, hubs, and modems, are less likely to utilize PoE because they typically do not need to be powered over Ethernet. These devices are usually powered by AC (alternating current) power and are typically connected to a power outlet rather than an Ethernet cable.

The end user can access local network shares and intranet pages, which means that the IPaddress and the subnet mask are configured correctly and the network interface is workingproperly.However, the end user is unable to access the internet or remote resources, which means thatthere is a problem with the name resolution or the routing of the traffic.The gateway address is responsible for routing the traffic to the destination network, whichcould be on the internet or another subnet. If the gateway address is incorrect, the end userwould not be able to reach any network outside the local subnet.The DNS servers are responsible for resolving the domain names to the IP addresses, which areneeded to communicate with the internet or remote resources. If the DNS servers are incorrect,the end user would not be able to resolve the names of the websites or servers they want toaccess.