LAN: Chapter 4: Homework & Quiz Flashcards
A(n) ________ converts a computer’s outgoing digital signal to an analog signal that can be transmitted over a telephone line.
modem
A(n) ________ is the movement of a frame or packet, point-to-point, from one network to the next.
hop
The “W” in WDM stands for ____________.
wavelength
OSPF stands for _________.
open shortest path
A(n) ______ is software or hardware that secures data from being accessed outside a network and that can also prevent data from leaving the network through an inside source.
firewall
Connects two or more cable segments and retransmits any incoming signal to all other segments.
repeater
A network device that connects one LAN segment to another.
bridge
A network device that can receive multiple inputs and transmit them to a shared network medium.
multiplexer
Enables a network device, such as a computer, to connect to a network.
NIC
Links network segments and forwards and filters frames between segments. Has the ability to increase the bandwidth on existing networks.
switch
Also referred to as a concentrator.
hub
A network device that enables communications between two different types of networked systems.
gateway
Acts as a central hub on a token ring network.
MAU
Used to connect networks that have dissimilar data links.
router
IDSN lines require the use of a(n) ________ to connect to a PC.
terminal adapter
The advantage of _____________ communications is that currently unallocated bandwidth can be allocated to you, even for a millisecond or two, when you are downloading a large file, for example.
cable modem
__________ is software that is stored on a chip, such as a ROM chip.
Firmware
When referencing Class I and Class II repeaters, a(n) _________ refers to two segments connected by one or more repeaters.
collision domain
A ____ is a pathway inside the computer that is used to transfer information to the CPU or to peripherals attached to the computer.
bus
The MNP ____ provides for cell phone transmission.
Class 10
Multiplexers are simply ____.
switches
What is a disadvantage of repeaters?
They can create an excessive amount of traffic on an already busy network.
A router operates at the OSI ____ layer.
Physical
Bridges are ______ independent.
protocol
____ provide a single unit in which to combine all types of telecommunications connectivity, including modems.
Access servers
The DOCSIS standards are associated with ____.
cable modems
Lobe cables are used in connection with ____.
MAUs
