N+ Chapter 4 Structured cabling
entrance facility
Select the component of enterprise level structured cabling that serves as the location where an incoming network interface enters a building and connects with the building's backbone cabling:
1522 bytes
What is the maximum frame size for Ethernet II frames on a VLAN?
transformer
What type of power converter changes the voltage of an AC current, such as when power over the main line from an electric company is changed before being delivered to a home?
noise
What type of power flaw involves a fluctuation in voltage levels caused by other devices on the network or by EMI?
bend radius
The radius of the maximum arc into which you can loop a cable without impairing data transmission is known as what option below?
42U
What is the industry standard for rack height in rack units?
110 block
When selecting a punch down block, what block type is more suitable for data connections?
in the Main Distribution Frame (MDF)
Where is a demarc located in relation to the structured cabling of an enterprise environment?
full-duplex
Which method of transmission allows signals to travel in both directions over a medium simultaneously?
fiber optic cables
Which of the following options is not a likely source of electromagnetic interference?
No more than 1 inch of the cable should be exposed.
During termination of twisted pair cabling, what should be done to ensure minimal cross talk is introduced?
1.4
One watt is equal to how many volt-amps?
Fiber optic
What cable type comes in two different modes, single mode and multimode?
vertical cross connect
What component of the backbone runs between a building's floors and can be used to connect an MDF and IDF or multiple IDFs?
100 m
What is the maximum allowable distance for horizontal wiring?
half duplex
Which method of transmission allows signals to travel in both directions over a medium but in only one direction at a time?
KVM switch
In order to simplify console access to computers in a rack, what device is typically used to provide a central portal for all devices on the rack?
Layer 2
Ethernet exists at what layer of the OSI model?
at least 3 feet
How far away from fluorescent lights or other sources of EMI should cable be installed?
iSCSI
If the use of a pre-existing Ethernet infrastructure is desired for a SAN, what Transport Layer protocol should be utilized?
