Deploying Ethernet Cabling

Question 1

Standards describing media types, access methods, data rates and distance limitations at layers 1 and 2 of the OSI model using xBASE-y designations

Answer 1

802.3 Ethernet Standards (ieee802.org/3)

Question 2

Nodes attached to the same shared access media, such as a bus network or Ethernet hub

Answer 2

Collision domain

Question 3

Each network device competes with other connected devices for use of the transmission media. These require a set of protocols that reduce possibility of data collisions since if the devices compete and simultaneously send data packets, neither packet with reach its destination. CSMA protocols allow the networks to successfully communicate by detecting activity on the network media and reacting to this. CSMA/CD recognizes a signal collision on the basis of electrical fluctuations produced when signals combine. CSMA/CA waits for the network to be free before announcing intention to transmit. If no negative response is received, the unit will transmit.

Answer 3

Carrier Sense Multiple Access with Collision Detection (CSMA/CD)

Question 4

UTP (CAT 6) 55 m (180 ft)
F/UTP (CAT 6A) 100 m (328 ft)
S/FTP (CAT 7) 100 m (328 ft)

Answer 4

10BASE-T

Question 5

S/FTP (Cat 8) 30 m (100 ft)

Answer 5

40BASE-T

Question 6

Type of distribution frame that offers high density and available in different IDC formats, such as 110, BIX, and Krone

Answer 6

Punchdown block

Question 7

Block used to terminate twisted pair cabling at a wall plate or patch panel available in different formats such a as 110, BIX and Krone

Answer 7

Insulation-displacement connection (IDC)

Question 8

Electrician’s scissors that are sturdy enough to cut wire and notched to assist with stripping insulation from wire.

Answer 8

Snips

Question 9

Tool for stripping the cable jacket or wire insulation

Answer 9

Cable stripper

Question 10

Tool used to terminate solid twisted pair copper cable to an Insulation Displacement Connector

Answer 10

Punchdown took

Question 11

Tool to join a network jack to the ends of a network patch cable

Answer 11

Cable Crimper

Question 12

Type of distribution frame with pre-wired connectors used with fiber optic cabling

Answer 12

Fiber distribution panel

Question 13

Took for joining strands of fiber optic cable with minimal signal loss

Answer 13

Fusion splicer

Question 14

Component in a network interface that converts data to and from the media signaling type. Modular transceivers are designed to plug into switches and routers.

Answer 14

Transceivers/Media converters

Question 15

Fiber optic transceiver module type supporting duplex 1 Gbps (SFP) or 10 Gbps (SFP+) links

Answer 15

Small Form Factor Pluggable (SFP)

Question 16

Fiber optic transceiver module type supporting four individual duplex lanes at 1 Gbps (QSFP) or 10 Gbps (QSFP+) that can be aggregated into a single 4 Gbps or 40 Gbps channel.

Answer 16

quad small form factor pluggable (QSFP)

Question 17

System that allows bidirectional data transfer over a single fiber strand by using separate wavelengths for transmit and receive streams.

Answer 17

Bidirectional wavelength division multiplexing (WDM)

Question 18

Technology for multiplexing up to 16 signal channels on a single fiber using different wavelengths

Answer 18

Coarse Wavelength Division Multiplexing (CWDM)