Network+ Guide To Networks Chapter 4 - Structured Cabling And Networking Elements

Front 1

The location where an incoming network interface enters a building is known as a what?

Back 1

Entrance Facility

Front 2

The first point of interconnection between an organizations LAN or WAN and a service providers facility is known as what?

Back 2

MDF (Main Distribution Frame)

Front 3

What is known as a junction between the MDF (Main Distribution Frame) and the end user's equipment?

Back 3

IDF (Intermediate Distribution Frame)

Front 4

What is the maximum allowable distance for horizontal wiring?

Back 4

100 meters

Front 5

What three types of cabling does the TIA/EIA recongnize?

Back 5

UTP, STP, and Coaxial

Front 6

What type of cable is coated with a flame resistant jacket that produces less smoke than regular cable coated with PVC (Polyvinyl Chloride)?

Back 6

Plenum Cabling

Front 7

What type of punch down block is more suitable for data connections? A 110 block or a 66 block?

Back 7

110 because the 66 blocks were primary used for telephone connections.

Front 8

Rack systems are measured in what?

Back 8

Rack units (RU or U)

A standard rack is 42U tall about 6ft.

Front 9

In a rack system what device is used to connect multiple devices to a single keyboard, mouse, or monitor?

Back 9

KVM switch (keyboard, video, and mouse)

Front 10

What allows operations or data storage to continue in the event of a failure?

Back 10

Fault Tolerance

Front 11

A specialized storage device that provides fault tolerance storage is known as what?

Back 11

NAS (Network Attached Storage)

Front 12

What type of storage devices communicates directly with each other and with other networks?

Back 12

SAN (Storage Area Network)

Front 13

This type of transport layer protocol is capable of over 5 Gbps throughput over fiber optic media.

Back 13

Fibre Channel (FC)

Front 14

A complete loss of power is known as what?

Back 14

Blackout

Front 15

A dimming of the lights is known as what?

Back 15

Brownout

Front 16

In a circuit, what flows at a steady rate in only one directions?

Back 16

DC (Direct Current)

Front 17

In a circuit, what continually switches direction?

Back 17

AC (Alternating Current)

Front 18

An inverter converts what?

Back 18

DC to AC

Front 19

A rectifier converts what?

Back 19

AC to DC

Front 20

What changes the voltage of AC, such as when the power over the main line from the electric company is changed before being delivered to your house?

Back 20

Transformer

Front 21

A momentary increase in voltage is known as what?

Back 21

Surge

Front 22

What type of UPS (uninterruptible power supply) provides continuous voltage to a device by switching instantaneously to the battery when there is a loss of power?

Back 22

Standby UPS or (Standby power supply SPS)

Front 23

What is the formula to determine the amount of volt-ampres (VA) a device requires?

Back 23

1.4 volt-amps (VA) = 1 watt (W)

For example:

1.4 VA x 200 W = 280 VA

Front 24

Transmissions that travel in both directions over a medium simultaneously. (at the same time)

Back 24

Full-duplex

Front 25

Transmissions the travel over a medium but only in one direction at a time.

Back 25

Half-duplex

Front 26

Transmissions that can travel in only one direction.

Back 26

Simplex

Front 27

What is the minimum frame size in a Ethernet II frame?

Back 27

64 bytes

Front 28

What is the maximum frame size in a Ethernet II frame?

Back 28

1518 bytes

Front 29

What is the maximum frame size of an Ethernet II frame when it is on a virtual LAN (VLAN)?

Back 29

1522

Virtual LANs can have an extra 4 byte field between the source address field and the type field.

Front 30

What device accepts signals from a transmitting node and repeats those signals to all other connected nodes?

Back 30

Hub

Front 31

What happens when two nodes transmissions interfere with each other?

Back 31

Collision

Front 32

What device receives a transmission for a node and sends it only to the destination node?

Back 32

Switch

Front 33

In what method does each node wait before transmitting data to avoid interfering with other nodes transmissions?

Back 33

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

Front 34

What component of the backbone runs between a building's floors and can be used to connect an MDF and IDF or multiple IDF's

Back 34

vertical cross connect

Front 35

This standard describes uniform, enterprise wide cabling systems, regardless of who manufactures or sells the various parts used in the system.

Back 35

TIA/EIA 568 Commercial Building Wiring Standard or Structured Cabling

Front 36

The Ethernet II frame type contains a 2 byte _____ field that differentiates it from other Ethernet frames types.

Back 36

Type

Front 37

Ethernet exists at what layer of the OSI model?

Back 37

Layer 2 (Data Link Layer)

Front 38

Fluctuation in voltage levels caused by other levels on the network or EMI is known as what?

Back 38

Noise

Front 39

Where is a demarc located in relation to the structured cabling of an enterprise environment?

Back 39

The entrance facility

Front 40

SANs (Storage Area Networks) use what two Transport layer protocols?

Back 40

iSCSI and Fibre Channel

Front 41

NICs contain ______ which transmits and receives data signals.

Back 41

Transceiver

Front 42

Each cable has a _______ ________, which is the radius of the maximum arc into which you can loop a cable without impairing data transmission

Back 42

Bend radius