Deck 4: Connecting Through a Cabled Network

Question 1

____ is the total amount of opposition to the flow of current and is measured in ohms.

A)Impedance
B)Inductance
C)Capacitance
D)Conductance

Answer 1

A

Question 2

____ cable is the most frequently used network cable because it is relatively inexpensive and easy to install.

A)Shielded twisted-pair
B)Unshielded twisted-pair
C)Thin coax
D)Thick coax

Answer 2

B

Question 3

The 100BaseX segment limitations for twisted pair are the same as for 10BaseT.

Answer 3

True

Question 4

The size of a fiber-optic cable is measured in ____.

A)nanometers
B)microns
C)millimeters
D)centimeters

Question 5

____ cabling is defined by the EIA/TIA-568 standard as cabling that connects workstations and servers in the work area.

A)Vertical
B)Local
C)Horizontal
D)Complete

Question 6

Fiber-optic cable is capable of handling high-speed network transmissions from 100 Mbps to ____.

A)1 Gbps
B)10 Gbps
C)100 Gbps
D)1 Tbps

Question 7

Attenuation, or power loss, in fiber-optic cable is measured in ____.

A)decibels
B)watts
C)joules
D)candelas

Question 8

A baseband transmission employs several transmission channels on a single communications medium.

Question 9

The highest transmission speed attainable using the best twisted-pair cable is ____.

A)10 Mbps
B)100 Mbps
C)1 Gbps
D)10 Gbps

Question 10

A ____ cable consists of a single cable sheath that contains fibers and copper cables in different combinations for different implementations

A)coax
B)twisted-pair
C)hybrid fiber/coax
D)fiber-optic

Question 11

Category 4 UTP cables capable of a maximum transmission rate of 20 Mbps are known as ____ cables.

A)10Base2
B)10Base5
C)10Base20
D)10BaseT

Question 12

Networks using ____ cables employ a media filter to reduce EMI and RFI.

A)thick coax
B)thin coax
C)unshielded twisted-pair
D)shielded twisted-pair

Question 13

The ____ version of Fast Ethernet transmits signals in a timed-delay manner, timing the signals to avoid collisions.

A)100BaseT
B)100BaseT2
C)100BaseT4
D)100BaseTX

Question 14

For effective RFI and EMI reduction in shielded twisted pair cables, the interval of twists or lay length in each pair should be different.

Question 15

Gigabit Ethernet uses ____, and is designed to be an immediate upgrade path for existing 100BaseX Ethernet networks meeting Gigabit Ethernet standards.

A)TDMA
B)CDMA
C)CSMA/CD
D)demand priority

Question 16

10 Gigabit Ethernet is not true Ethernet because it does not employ CSMA/CD.

Question 17

____ connectors have a round shape and use a bayonet-type locking attachment, similar to a BNC connector.

A)MTRJ
B)LC
C)SC
D)ST

Question 18

The MAC controller formats frames at the MAC sublayer of the OSI Data Link layer.

Question 19

10 Gigabit Ethernet operates at ____, meaning that two-way transmissions may occur simultaneously.

A)simplex
B)demand priority
C)half duplex
D)full duplex

Question 20

The maximum theoretical network speed of a thin coax cable specified as 10Base2 is ____ Mbps.

A)2
B)10
C)20
D)200

Question 21

___ is software that is stored on a chip, such as a ROM chip.

A)Firmware
B)Shareware
C)Adware
D)Middleware

Question 22

What is the role of Class I repeater in Fast Ethernet technologies?

Question 23

A____ is what enables a computer or network device to connect to a cabled network.

A)BNC
B)network interface card (NIC)
C)T-connector
D)drop cable

Question 24

A(n)____ is a device that can transmit and receive, such as transmitting and receiving signals on a communications cable.

A)repeater
B)amplifier
C)transmitter
D)transceiver

Question 25

____________________ cable consists of one or more glass or plastic fiber cores encased in a glass tube, called cladding.

Question 26

Besides fast transmission, what are two important benefits of demand priority?

Question 27

What is twisted pair cable?

Question 28

______________________________ cable consists of pairs of insulated solid wire surrounded by a braided or corrugated shielding.

Question 29

Identify five services that can be delivered by a full HFC (hybrid fiber/coax)system.

Question 30

____ is a bus standard that enables you to attach all types of devices to one bus port on a computer.

A)SPARC
B)NuBus
C)USB
D)VL-bus

Question 31

Provide a description of a thick coax cable.

Question 32

Why is uniform twisted-pair cable (UTP)generally preferred over shielded twisted-pair cable (STP)?

Question 33

How does the 10Base2 specification reflect the properties of a thin coax cable?

Question 34

How do the wavelengths of visible and infrared light relate to the quality of light transmission signals?

Question 35

Driver ____________________ means that a digital signature is placed in the driver.

Question 36

____ means that the NIC and network equipment are set up so they cannot send and receive at the same time.

A)Half-duplex
B)Semi-duplex
C)Full-duplex
D)Simplex

Question 37

Identify and describe the two varieties of multimode cable.

Question 38

____________________ cabling is cable that runs between network equipment rooms, floors, and buildings.

Question 39

____ uses a local bus design that enables the use of separate buses for network interfaces and for disk storage.

A)MCA
B)PCI
C)ISA
D)EISA

Question 40

A(n)____________________ is a pathway inside the computer that is used to transfer information to the CPU or to peripherals attached to the computer.

Question 42

Describe three functions performed by the MAC controller unit at the LLC sublayer of the Data Link layer.