Distribution System

Question 1

Demarcation Point is what

Answer 1

Location where ISP connection ends and network infrastructure and cabling begin

Where WAN enters your facility

Question 2

MDF or main distribution frame

Answer 2

Main starting point for all interior cabling that goes throughout your facility

Backbone switch is here

This is the trunk of the tree

Question 3

2 post rack used for what

Answer 3

Lighter equipment

Question 4

4 post rack used for what

Answer 4

Heavy equipments

Question 5

Wall mounted racks

Answer 5

For Edge switched

Question 6

Patch panel

Answer 6

Keep data centers organized and make it easy to move or change cable infrastructure

Question 7

Patch Panels front

Answer 7

Network jack (rj45)

Question 8

Patch panels back

Answer 8

Punchdown block
(Remember Dad taking you to job sites)

Question 9

110 blocks

Answer 9

Punchdown block for voice and data using CAT 5 (100 for 100)

Question 10

Best Practice for connecting

Answer 10

Always connect the wall jacks cable to a patch panel
-these are cheap and protect cables
-patch panels can fail first, not the cable

Question 11

Fiber distribution panel

Answer 11

Uses fiver connectors like LC, ST. Sc,
No punchdown needed

Can also act as a converter if you need to switch LC to SC or vice versa

Question 12

Correct order

Answer 12

From switch to patch panel to punchdown block to wall jack to the computer

Question 13

Fox and hound is also known as a what

Answer 13

Toner probe.

You can touch cables to make a noise when it finds the right cable

Question 14

Fox and hound or toner probe can be used to

Answer 14

Troubleshoot a network to find breaks in the wire or identify your network

Question 15

UPS

Answer 15

Provides power during shortage

Usually at the base of the server rack

Also provides line conditioning, great for short power outages, 15 - 30 minutes of power, high expensive

Question 16

Power distribution unit - PDU

Answer 16

Advanced power strips, looks like large cabinets, provide power protection but not full protection.

Combined with something else for full power backup

Question 17

Generator

Answer 17

Provide long-term term power during an outage.

Takes some time to start up. Paired with UPS to fix this

UPS would take the load first and then the generator

Question 18

Managing power loads

Answer 18

Critical in preventing circuit overload and to evenly distribute power

Question 19

Voltage

Answer 19

Electric potential difference

May need inverter

120 V in US
230 V in Europe

Question 20

Steady temperature for equipment at what?

Answer 20

68-77 F or 20-25 C

Question 21

Too much humidity

Answer 21

Condensation

Question 22

Too little humidity

Answer 22

Static electrical charges

Question 23

Humidity level range

Answer 23

40-60%

Question 24

Airflow management

Answer 24

Use port side exhaust and intake or

Hot aisle/ cold aisle

Positioning server racks in alternating rows with cold and hot air

Question 25

Wet pipe system

Answer 25

Basic fire suppression, sprinkler system and pipes that contain water Avoid this around data centers in case they leak or break

Question 26

Pre action system

Answer 26

Minimize risk of accidental systems if you're using a wet pipe system. 2 factor authentication for fire suppression

Question 27

Special suppression system

Answer 27

Utilize a clean agent as part of the suppression system Could be a type of gas to suffocate the fire. Danger to people. So must be equipped with an alarm. And it needs to have supplemental oxygen available for anyone in the room