Chapter 12 data

limits collision domains to five segments of wire, four repeaters and/or hubs, and three populated hubs between any two stations on a 10-Mbps network

5-4-3 rule

also known as error sensing

Adaptive cut-through forwarding

a frame with an FCS error and an octet missing

Alignment error

segments a network by filtering traffic at the Data Link layer

Bridge

A bridge maintains a ____ that maps the MAC addresses on each segment to the corresponding port on the bridge to which each segment is connected.

Bridging table

a sudden rush of network transmissions that causes all other network communications to slow down due to the volume of data competing for access to the same bandwidth on the communications medium

Broadcast storm

Ethernet contention method

CSMA/CD

A(n) ____ is the physical area in which a packet collision might occur

Collision Domain

IEEE 802.3u specifies two types of repeaters: Class I and Class II. Class II repeaters have higher latency than Class I repeaters.

False

When a segment has too much broadcast traffic, utilization increases and network performance in general benefits

False

A(n) ____ occurs when two stations transmit more than 64 bytes of data frames before detecting a collision.

Late collision

the length of time that is required to forward, send, or otherwise propagate a data frame

Latency

____ switches read the entire frame, no matter how large, into their buffers before forwarding.

Store-and-forward

switches that require all attached network interface devices to use the same transmit/receive speed

Symmetric switching

virtual local area network that allows you to logically segment a network

VLAN

Some switches can interconnect network interfaces of different speeds. These switches use ____ switching and, typically, a shared memory buffer.

asymmetric

Switches that use ____ forwarding start sending a frame immediately after reading the destination MAC address into their buffers.

cut-through

In ____ memory buffering, each port has a certain amount of memory that it can use to store frames.

port-based

A ____ operates at layer 3 of the OSI reference model. It interprets the Network layer protocol and makes forwarding decisions based on the layer 3 address

router

With ____ memory buffering, any port can store frames in the shared memory buffer

shared

Routers, switches, bridges, and gateways segment networks and thus create separate collision domains

true

The main difference between a switch and a bridge is that the switch typically connects multiple stations individually, thereby segmenting a LAN into multiple collision domains

true

You cannot actually configure a router until you get to enable mode

true