Deck 10: Network Access and Transmission Methods

Question 1

On a Token Ring network, an active monitor is the workstation that maintains timing for token passing, monitors token and frame transmission, and detects lost tokens.

Answer 1

True

Question 2

A topology in which each workstation participates in transmitting data over the network is referred to as an active topology.

Answer 2

True

Question 3

In ISDN, the C channel is referred to as the "bearer"
channel.

Answer 3

False

Question 4

Baseband is a transmission form in which digital signals are sent through direct current pulses applied to the wire.

Question 5

Cable drop refers to the single cable connecting all devices in a bus topology.

Question 6

The term cell refers to a packet of a fixed size.

Question 7

A cable modem demodulates an incoming DSL signal, extracting the information which is then passed on to the data equipment.

Question 8

Bonding is the process of combining more than one bearer channel of an ISDN line to increase throughput.

Question 9

In ISDN, the B channel uses packet-switching techniques to carry information about the ISDN connection.

Question 10

Hybrid topology refers to a complex combination of the simple physical topologies.

Question 11

A(n) D channel uses circuit switching to carry digital voice, video, and data signals. _________________________

Question 12

Bus refers to the single cable connecting all devices in a bus topology. _________________________

Question 13

On a Token Ring network, a(n) active monitor is the workstation that maintains timing for token passing. _________________________

Question 14

The term dedicated is used to describe data traffic that flows from a local carrier's facility to the customer. _________________________

Question 15

The term downstream refers to a continuously available link or service that is leased through a telecommunications provider. _________________________

Question 16

On an Ethernet network, the average percentage of all transmissions involved in collisions during a one minute time period, is known as the collision rate. _________________________

Question 17

Fractional T1 is an updated, digital version of X.25 that relies on packet switching. _________________________

Question 18

Fast Ethernet is a type of network that is capable of 100 Mbps throughput. _________________________

Question 19

DSL is a dedicated remote connectivity device that uses advanced data modulation techniques to achieve extraordinary throughput over regular phone lines. _________________________

Question 20

Fractional T1 is a cable company's central office which connects cable wiring to many nodes before it reaches customer's sites. _________________________

Question 21

Which of the following is the workstation that maintains timing for token passing on a Token Ring network?

A) Active topology
B) Active monitor
C) Asymmetric DSL
D) Baseband

Question 22

A topology in which each workstation participates in transmitting data over the network is known as:

A) Bus topology
B) Cable drop
C) Active topology
D) D channel

Question 23

Which of the following characteristic of a transmission technology that affords greater bandwidth in one direction than in the other?

A) Asymmetrical
B) Dedicated
C) Baseband
D) Collision

Question 24

A type of 100BaseT network that uses two wire pairs in a twisted cable, but uses faster signaling to achieve 100 Mbps throughput, is referred to as:

A) 200BaseT
B) 100BaseTX
C) 100BaseTXX
D) 200BaseTX

Question 25

Which of the following is referred to as the "bearer" channel?

A) B channel
B) Bonding
C) D channel
D) Channel bank

Question 26

Which of the following is a transmission form in which digital signals are sent through direct current pulses applied to the wire?

A) B channel
B) Bonding
C) Baseband
D) Downstream

Question 27

The process of combining more than one bearer channel of an ISDN line to increase throughput is known as:

A) Bonding
B) ASDL
C) BRI
D) Jamming

Question 28

Which of the following is a variety of ISDN that uses two 64-Kbps bearer channels and one 16-Kbps data channel?

A) CIR
B) DSL
C) BRI
D) ATM

Question 29

Which of the following is the single cable that connects devices in a bus topology?

A) Cable drop
B) Fractional T1
C) Bus
D) Partial mesh

Question 30

Which of the following is a fiber optic or coaxial cable that connects a neighborhood cable node to a customer's house?

A) Cell
B) Cable drop
C) Hybrid fiber-coax
D) Frame relay

Question 31

Which of the following is a multiplexer that is used to terminate analog T-carrier connections?

A) Cell
B) Cable modem
C) Channel bank
D) Fractional T1

Question 32

Which of the following describes the interference of one network node's data transmission with another node's data transmission?

A) Collision domain
B) DACS
C) Downstream
D) Collision

Question 33

The portion of an Ethernet network in which collisions occur if two nodes transmit data at the same time, is referred to as:

A) Collision domain
B) Channel bank
C) Head-end
D) Jamming

Question 34

Which of the following is the "data" channel that uses packet-switching techniques to carry information about the ISDN connection?

A) B channel
B) Channel bank
C) D channel
D) Fractional T1

Question 35

Which of the following describes a packet of a fixed size?

A) Cell
B) Frame relay
C) Bus
D) Cable drop

Question 36

Which of the following describes data traffic that flows from a local carrier's facility to the customer?

A) Dedicated
B) Downstream
C) Frame relay
D) Partial mesh

Question 37

Which of the following is a multiplexer that is used to terminate analog T-carrier connections?

A) DACS
B) DSL
C) Channel bank
D) Fractional T1

Question 38

Which of the following describes the interference of one network node's data transmission with another network node's data transmission?

A) Collision
B) Cell
C) Jamming
D) Frame relay

Question 39

A continuously available link or service that is leased through a telecommunications provider, is known as:

A) Ethernet
B) Leased line
C) Partial mesh
D) Dedicated

Question 40

The length of time that data takes to travel from one point on a network segment to another, is referred to as:

A) Frame relay
B) 5-4-3 rule
C) Data propagation delay
D) Signal level

Question 41

A dedicated remote connectivity or WAN technology that uses advanced data modulation techniques to achieve extraordinary throughput over regular phone lines, is referred to as:

A) DSL
B) DSU
C) FDDI
D) ISDN

Question 42

A device that demodulates an incoming DSL signal, extracts the information and passes it on to the data equipment, is known as:

A) DSL modem
B) DSL access multiplexer
C) Cable modem
D) DSU

Question 43

Which of the following is a device used in T-carrier technology that converts the digital signal used by bridges, routers, and multiplexers into the digital signals used on cabling?

A) Fast Ethernet
B) DSL
C) DSU
D) DSO

Question 44

Which of the following is a network access method that follows the IEEE 802.3 signaling specifications?

A) DSL modem
B) Ethernet
C) CSU
D) Baseband

Question 45

Which of the following is an arrangement that allows organizations to lease, and pay for, only some channels on a T1 line?

A) Frame relay
B) Partial mesh
C) Fractional T1
D) Leased lines

Question 46

Which of the following is an international standard, established by the ITU, for transmitting data over digital lines?

A) LAN emulation
B) ISDN
C) SDH
D) HFC

Question 47

Connections or services for which an organization pays a regular fee to use, are referred to as:

A) Cable drop
B) Fractional T1
C) Leased lines
D) Dedicated

Question 48

Which of the following refers to a complex combination of the simple physical topologies?

A) Hybrid fiber-coax
B) Partial mesh
C) Hybrid topology
D) SONET

Question 49

Which of the following represents a network layout in which each node is connected to the two nearest nodes so that the entire network forms a circle?

A) Shared Ethernet
B) Star topology
C) Ring topology
D) Star-wired bus topology

Question 50

Which of the following is an implementation of Ethernet in which all nodes on a segment share the same communications channel?

A) Signal bounce
B) Shared Ethernet
C) Fast Ethernet
D) Gigabit Ethernet

Question 51

A phenomenon in which signals travel endlessly between the two ends of a bus network, is referred to as:

A) Signal bounce
B) Signal level
C) SDH
D) Baseband

Question 52

Which of the following is a physical topology in which every node on the network is connected through a central device?

A) Full-mesh topology
B) Star topology
C) Bus topology
D) Hybrid topology

Question 53

Which of the following relies on a fixed packet size to achieve data transfer rates up to 9953 Mbps?

A) 100BaseTX
B) Active monitor
C) Asymmetrical DSL
D) Asynchronous transfer mode

Question 54

Which of the following refers to a connection defined by two end points that is available exclusively for use by the customer who leases the line?

A) Private line
B) Leased line
C) Fractional T1
D) Partial mesh

Question 55

Does the term fractional T1 refer to an arrangement that allows organizations to lease only some channels on a T1 line?

Question 56

Does the term frame relay refer to an updated, digital version of X.25 that relies on packet switching?

Question 57

Does DSL convert the digital signals used by bridges into the digital signals used on cabling?

Question 58

Can head-ends connect cable wiring to different nodes before it reaches a customer's site?

Question 59

Are leased lines established through a public telecommunications carrier?

Question 60

Does the term partial mesh apply to the physical layout of a network?

Question 61

Does a D channel use circuit switching to carry digital voice, video and data signals?

Question 62

In a star topology, is every node on the network connected through a central device?

Question 63

Is a leased line a connection defined by two endpoints that is available exclusively for the customer who leases the line?

Question 64

Does the term 100BaseTX refer to a transmission form in which digital signals are sent through direct current pulses applied to the wire?

Question 65

On a Token Ring network, the ____________________ is the workstation that maintains timing for token passing, monitors token and frame transmission and detects lost tokens.

Question 66

A(n) ____________________ is one in which each workstation participates in transmitting data over the network.

Question 67

____________________ refers to a fiber optic or coaxial cable that connects a neighborhood cable node to a customer's house.

Question 68

A(n) ____________________ is a packet of a fixed size.

Question 69

On Ethernet networks, the average percentage of all transmissions involved in collisions during one time period or another, is referred to as the ____________________.

Question 70

A continuously available link or service that is leased through a telecommunications provider is referred to as ____________________.

Question 71

A(n) ____________________ is a device that demodulates an incoming signal.

Question 72

____________________ refers to an updated, digital version of X.25 that relies on packet switching.

Question 73

____________________ is the process by which a station's NIC first propagates a collision throughout the network so no other station attempts to transmit.

Question 74

____________________ is a phenomenon in which signals travel endlessly between the two ends of a bus network.

Question 75

Match each statement below with the correct item

-An arrangement that allows organizations to lease only some channels on a T1 line and pay for only the channels they lease.

A)ISDN
B)Dedicated
C)Jamming
D)Fractional T1
E)Collision
F)Frame relay
G)Downstream
H)Leased lines
I)Ethernet
J)Ring topology

Question 76

Match each statement below with the correct item

-An updated, digital version of X.25 that relies on packet switching.

A)ISDN
B)Dedicated
C)Jamming
D)Fractional T2
E)Collision
F)Frame relay
G)Downstream
H)Leased lines
I)Ethernet
J)Ring topology

Question 77

Match each statement below with the correct item

-An international standard for transmitting data over digital lines .

A)ISDN
B)Dedicated
C)Jamming
D)Fractional T3
E)Collision
F)Frame relay
G)Downstream
H)Leased lines
I)Ethernet
J)Ring topology

Question 78

Match each statement below with the correct item

-The process by which a station's NIC first propagates a collision through the network so no other station attempts to transmit it.

A)ISDN
B)Dedicated
C)Jamming
D)Fractional T4
E)Collision
F)Frame relay
G)Downstream
H)Leased lines
I)Ethernet
J)Ring topology

Question 79

Match each statement below with the correct item

-Connections or services for which an organization pays a regular fee to use.

A)ISDN
B)Dedicated
C)Jamming
D)Fractional T5
E)Collision
F)Frame relay
G)Downstream
H)Leased lines
I)Ethernet
J)Ring topology

Question 80

Match each statement below with the correct item

-A network layout in which each node is connected to the two nearest nodes so that the entire network forms a circle.

A)ISDN
B)Dedicated
C)Jamming
D)Fractional T6
E)Collision
F)Frame relay
G)Downstream
H)Leased lines
I)Ethernet
J)Ring topology