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Exam 4: Structured Cabling and Networking Elements

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Question 21

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Explain the difference between an inverter and a rectifier.

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An inverter converts DC to AC.A generato...

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Question 22

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What is the industry standard for rack height in rack units?

A) 18U
B) 22U
C) 42U
D) 54U

E) B) and C)
F) A) and D)

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Question 23

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One watt is equal to how many volt-amps?

Each type of cable has a prescribed bend radius ,which is the radius ofthe maximum arc into which you can loop a cable without impairing data transmission.

What is the maximum frame size for Ethernet II frames on a VLAN?

Which of the following options is not a likely source of electromagnetic interference?

A _____________ allows for an MTU as high as 9198 bytes.

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

Matching Match each correct item with the statement below. -In a chassis,the path along which air from a cool airsource is conducted,past equipment to cool it,and then outof the rack.Typically,air moves from front to back.

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

Matching Match each correct item with the statement below. -The portion of an Ethernet network inwhich collisions could occur if two nodes transmit data at thesame time.

Matching Match each correct item with the statement below. -The industry-standard unit for measuring rackheight.Standard racks are 42U tall-about 6 feet.

Select the two Transport Layer protocols that are used by SANs:

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:

Select the two terms below that are used to describe a UPS that provides continuous voltage to a device by switching virtually instantaneously to the battery when it detects a loss of power:

Cable that is coated with flame-resistant polyvinyl chloride (PVC)is acceptable for use in plenum areas.

The TIA/EIA standard for wall jacks in a work area require that at least one outlet be provided for data and one for voice.

Describe the differences between a brownout and a blackout.

The standard that describes uniform,enterprise-wide cabling systems,regardless of who manufactures or sells the various parts used in the system,can be referred to by what two options below?

Matching Match each correct item with the statement below. -A specialized storagedevice or group of storage devices that provides centralizedfault-tolerant data storage for a network.