CompTIA A+ 220-1001: Networking
What are routers?
Connection points that route traffic between subnetworks of the Internet. They choose the cheapest, most direct path for packets to travel.
Which characteristics of a cable modem distinguish it from other modems?
They are always on, They use cable TV lines
Which devices would most likely require Power over Ethernet (PoE)?
A security camera, A Wi-Fi access point
What is an access point?
device that allows wireless communication
What are bridges?
A bridge is a device that connects two kinds of 802 networks.
What is the difference between an active and passive hub?
An active hub includes the ability to boost a signal and extend the length of a network whereas a passive hub does not have this ability.
What are repeaters and extenders?
Devices designed to improve signal range and strength by amplifying a received signal.
Which term is used to describe a disguised system that appears to be of interest or value to lure an attacker?
Honeypot
What is a NIC?
Network Interface Card, a communications device that enables a computer or device that does not have built-in networking capability to access a network
Which characteristics of a switch can be advantageous to network deployment?
They improve network performance by regulating the flow of traffic, They increase network performance by reducing collisions
What are hubs?
they are hardware devices that connect many network devices making them into a single network segment
A patch-panel can best be thought of in which manner?
A centralized termination point for extensions of network cables
What are switches?
A device for connecting computers and other network capable devices together to form a network. They also act as bridges, which connect more than one network, allowing them to function as one network.
Which option best describes the process of devices such as Wi-Fi access points reporting their usage and status information to a cloud-based management point?
Backhaul
Which scenario would best equate to a full-duplex transmission?
Two people arguing with each other
Repeaters and extenders for both wired and wireless networks operate at which layer of the OSI model?
1
Which statements best describe the difference between a hub and a bridge?
Hubs send incoming data out over all other ports, bridges do not, Hubs operate at Layer 1 of the OSI model, bridges operate at Layer 2, Hubs come in Active and Passive varieties, bridges do not
Which statements best describe the characteristics of a router?
They operate at Layer 3 of the OSI model, They connect multiple networks together, They isolate networks from each other and do not forward broadcast packets
Ethernet over power can sometimes be used as an alternative to which networking implementation?
Wi-Fi
