Question 1

A hub can be configured to recognize a malfunctioning station that is jamming the network and to cut that station out of the network.

Accepted Answer

Hubs can be configured to recognize and isolate malfunctioning stations that are disrupting network communication through jamming or other issues. This can help improve the overall performance and reliability of the network.

Question 2

Local Area Networks are usually owned by the organization that is using the network to interconnect equipment.

Accepted Answer

Local Area Networks (LANs) are typically owned, installed and maintained by the organization that uses it to interconnect equipment within a specific location or area.

Question 3

In a star topology a repeater may also function as a device attachment point.

Accepted Answer

False

Question 4

A ________ local area network consists of a closed loop of repeaters that allow data to circulate around the ring.

Accepted Answer

A ring local area network is a type of network that is formed in a circular fashion, where data is transmitted around the ring from one computer to the next. The network consists of a closed loop of repeaters that ensure that the data keeps circulating around the ring until it reaches its destination. This is the basic principle behind the Ring topology, which uses a token passing mechanism to avoid collisions in the network. FDDI is a specific implementation of the ring topology used for high-speed data transmission, but it is not a general term used to describe all ring networks. Star and tree topologies are different types of network topologies that do not use the ring architecture.

Question 5

A ________ is where the destination MAC address indicates that all devices on the LAN should receive a copy of the frame.

Accepted Answer

A broadcast address is used to send a frame to all devices on the LAN, indicated by a destination MAC address of FF:FF:FF:FF:FF:FF. Unicast addresses are used to send a frame to a single device, multicast addresses are used to send a frame to a specific group of devices, and simulcast addresses are not a valid type of address in networking.

Question 6

A transmission of a frame by any one station in a bus or tree topology can be heard by other stations.

Accepted Answer

In a bus or tree topology, all stations are connected to a single communication line. As a result, if one station transmits a frame, all other stations on the same line can hear it.

Question 7

Each station attaches to the network at a repeater in the star topology and can transmit data onto the network through the repeater.

Accepted Answer

In a star topology, each station connects to a central hub or switch, not a repeater, which manages data transmission.

Question 8

WANs have much greater capacity than LANs to carry what is generally a greater internal communications load.

Accepted Answer

WANs (Wide Area Networks) are designed to cover large geographical areas and connect LANs (Local Area Networks) together, but LANs typically have higher data transfer speeds and capacity for handling an organization's internal communications load due to their more confined scope.

Question 9

Transmission is generally in the form of frames when using a ring topology.

Accepted Answer

In a ring topology, data is transmitted in the form of frames that circulate around the network until they reach their destination.

Question 10

The simplest approach to interconnecting multiple LANs within an organization is to use a ________.

Accepted Answer

The answer of The simplest approach to interconnecting multiple LANs...

Question 11

A ________ LAN includes a central node to which stations are attached.

Accepted Answer

A star LAN includes a central node, such as a hub or switch, to which all other stations are connected. This central node manages the traffic between the connected stations.

Question 12

A ________ is a logical subgroup within a LAN that is created by software rather than physically moving and separating devices.

Accepted Answer

A VLAN (Virtual LAN) is a logical subgroup within a LAN that is created by software rather than physically moving and separating devices. A VLAN allows network administrators to create separate subnetworks within a larger network, which can improve network performance, security, and management. SAN (Storage Area Network) and VAN (Value-Added Network) are not related to LAN subgroups, while SLAN is not a commonly used term in networking.

Question 13

Unicast addressing is where the destination address in the MAC frame designates a unique destination.

Accepted Answer

Unicast addressing is a method of addressing in which the destination address in the MAC frame refers to a unique recipient. This means that the frame is sent to only one device, unlike multicast or broadcast addressing where the frame is sent to multiple devices.

Question 14

One simple approach to improving efficiency is to physically partition the LAN into separate broadcast domains.

Accepted Answer

Partitioning the LAN into separate broadcast domains reduces the amount of unnecessary network traffic and improves overall network performance and efficiency. This can be achieved through methods such as implementing VLANs or using physical network segmentation.

Question 15

The choice for transmission medium and topology is critical in LAN design.

Accepted Answer

The choice of transmission medium and topology has a significant impact on the overall performance and reliability of a LAN, making it crucial in network design. The selection directly affects the network's bandwidth, speed, and ability to handle traffic, making it a critical factor to consider.

Question 16

The bridge provides an extension to the LAN once modifications to the communications software in the stations attached to the LAN are made.

Accepted Answer

A bridge connects multiple LANs or segments of a LAN at the data link layer (Layer 2) of the OSI model without requiring modifications to the communications software or devices on the network.

Question 17

Switches and hubs form the basic building blocks of most local area networks.

Accepted Answer

Switches and hubs are essential networking components that create the foundation of LANs, allowing devices to communicate with one another.

Question 18

A set of standards has not yet been defined for LANs that specify a range of data rates due to the variety of topologies and transmission media.

Accepted Answer

Standards for LANs, such as Ethernet (IEEE 802.3) and Wi-Fi (IEEE 802.11), have been defined and specify a range of data rates, accommodating various topologies and transmission media.

Question 19

The key elements of the local area network determine the cost and capacity of the LAN,the type of data that may be transmitted,the speed and efficiency of communications,and the kinds of applications that can be supported.

Accepted Answer

The key elements of the local area network do determine the cost and capacity of the LAN, the type of data that may be transmitted, the speed and efficiency of communications, and the supported applications.

Question 20

A router is not required to link from one VLAN to another.

Accepted Answer

A router is required to link from one VLAN to another as they are separate logical networks and cannot communicate with each other without a routing device.

Quiz 11: Local Area Network Overview