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.

Accepted Answer

The active monitor in a Token Ring network is responsible for maintaining the network's timing, ensuring that tokens and frames are transmitted correctly, and detecting and recovering lost tokens, ensuring smooth and orderly network operations.

Question 2

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

Accepted Answer

In an active topology, each workstation or node actively participates in the data transmission process, as opposed to a passive topology where nodes do not participate in data transmission.

Question 3

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

Accepted Answer

In ISDN, the B channel is referred to as the "bearer" channel, used for data transmission, while the D channel is used for control and signaling.

Question 4

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

Accepted Answer

Baseband transmission involves sending digital signals directly over a single channel, using direct current pulses or voltage changes, without modulating them onto a carrier wave.

Question 5

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

Accepted Answer

Cable drop refers to the voltage drop that occurs across the length of a cable due to its electrical resistance, not to the physical layout of a network topology.

Question 6

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

Accepted Answer

In networking, a cell is a small, fixed-size packet used in technologies like Asynchronous Transfer Mode (ATM).

Question 7

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

Accepted Answer

A cable modem demodulates the signal from a cable television network, not a DSL signal. DSL signals are handled by DSL modems.

Question 8

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

Accepted Answer

Bonding in ISDN (Integrated Services Digital Network) allows for the combination of multiple bearer channels (B channels) into a single, higher bandwidth channel, effectively increasing the total data throughput. This process is used to achieve higher data rates than what a single B channel can provide.

Question 9

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

Accepted Answer

The B channel in ISDN is primarily used for carrying voice, video, and data, and it uses circuit-switching techniques rather than packet-switching.

Question 10

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

Accepted Answer

Hybrid topology combines two or more different types of network topologies, such as star, ring, bus, or mesh, to form a complex network that can meet specific requirements and scalability needs.

Question 11

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

Accepted Answer

B

Question 12

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

Accepted Answer

In a bus topology, a single cable acts as a shared communication medium that all the devices on the network connect to, allowing data to be sent between them.

Question 13

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

Accepted Answer

The active monitor in a Token Ring network is responsible for ensuring that tokens are passed in an orderly manner, which includes maintaining the network's timing to prevent token loss or duplication.

Question 14

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

Accepted Answer

downstream

Question 15

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

Accepted Answer

dedicated

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. _________________________

Accepted Answer

The collision rate on an Ethernet network measures the average percentage of all transmissions that are involved in collisions over a specific time period, such as one minute, indicating how often data packets interfere with each other during transmission.

Question 17

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

Accepted Answer

Frame relay

Question 18

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

Accepted Answer

Fast Ethernet refers to Ethernet networks that can transmit data at a rate of 100 megabits per second (Mbps), an improvement over the original Ethernet speed of 10 Mbps.

Question 19

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

Accepted Answer

DSL (Digital Subscriber Line) is a technology that provides high-speed internet access by using advanced modulation techniques to transmit data over traditional copper telephone 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. _________________________

Accepted Answer

Head-end

Quiz 10: Network Access and Transmission Methods