A penetration tester has been tasked with reconnaissance to determine which ports are open on the network.
Which of the following tasks should be done FIRST? (Choose two.)

Corporate headquarters provided your office a portion of their class B subnet to use at a new office location.
Range Given: 172.30.232.0/24
* Sales 57 devices
* HR 23 devices
* IT 12 devices
* Finance 32 devices
* Marketing 9 devices
INSTRUCTIONS
Allocate the minimum number of addresses (using CIDR notation) needed to accommodate each department.
After accommodating each department, identify the unused portion of the subnet by responding to the question on the graphic.
All drop downs must be filled.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

A network technician has been asked to install an additional switch in an IDF, but all of the single-mode fiber is in use between the IDF and MDF. The technician has deployed new transceivers that allow for the use of a single fiber stand, providing the additional fiber needed for the new switch. Which of the following has the technician deployed?

At which of the following layers of the OSI model does compression occur?

A administrator is troubleshooting a user's intermitted wireless connectivity issue. Other users across the hallway can connect use the wireless network properly. Upon inspection of the connection details, the administrator finds the following:

Which of the following is MOST likely the cause of the poor wireless connection?