Module 2.1

Question 1

The cable between two ________ creates a low voltage electrical circuit between the interfaces on the nodes.

Answer 1

nodes

Question 2

Copper cable suffers from high attenuation, meaning that the signal quickly loses __________ over long links

Answer 2

strength

Question 3

__________ cable carries very high frequency radiation in the infrared light part of the electromagnetic spectrum.

Answer 3

Fiber optic

Question 4

__________ cable supports higher bandwidth over longer links than copper cable

Answer 4

fiber optic

Question 5

MMF is categorized by Optical Mode designations _____, _____, _____, _____

Answer 5

OM1, OM2, OM3, and OM4

Question 6

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 6

802.3 Ethernet Standards

Question 7

The bit rate in __________

Answer 7

megabits per second (Mbps) or gigabits per second (Gbps).

Question 8

The signal mode ________________

Answer 8

(baseband or broadband)

Question 9

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

Answer 9

Collision Domain

Question 10

____________________ refers to the methods a network technology uses to determine when nodes can communicate on shared media and to deal with possible problems, such as two devices attempting to communicate simultaneously

Answer 10

Media access control (MAC)

Question 11

The ______________________protocols allow contention-based networks to successfully communicate by detecting activity on the network media (Carrier Sense) and reacting to this (for example, if the medium is busy)

Answer 11

Carrier Sense Multiple Access (CSMA)

Question 12

______________ refers to Fast Ethernet working over Cat 5 (or better) twisted pair copper cable with a maximum supported link length of 100 meters (328 feet)

Answer 12

100BASE-TX

Question 13

Where a hub works only at the physical layer, a _____________ uses information about source and destination addresses carried in layer two frames to establish a temporary circuit between two nodes.

Answer 13

switch

Question 14

Unlike a hub, each switch port is a separate ___________

Answer 14

collision domain

Question 15

By eliminating the effect of contention, switches allow for __________ transmissions, where a node can transmit and receive simultaneously, and each node can use the full 100 Mbps bandwidth of the cable link to the switch port

Answer 15

full-duplex