A network technician is considering opening ports on the firewall for an upcoming VoIP PBX implementation. Which of the following protocols is the technician MOST likely to consider? (Choose three.)

A technician is surveying college's network equipment room and connectivity. Which of the following types of documentation does the technician need perform a detailed site survey?
(Select THREE).

At which of the following OSI model layers does DHCP server software operate?

A security manager asks a technician to install a network device that will provide information about attacks against the network but will not stop them. Which of the following devices is MOST suited for this task?

Multiple users are reporting that they are unable to access the network. The ENTIRE network is shown in the diagram. PCs are not statically assigned IP addresses. The following devices will display settings.
* WorkstationA
* WorkstationB
* WofkstationC
* WorkstationD
* WokstationE
* WorkstalionF
* WorkstalionG
* Laptop1
* Laptop2
* DHCP server1
* DHCP serverr2
Review the settings and select the box in the diagram that identifies the device causing the issue. Only one device can be selected at a time.
After checking the device that is causing the issue, select the second tab in the lower left hand corner. Identify the reason as to why some users are unable to access the network.












Part 2
Identify the reason as to why some users are unable to access the network.