NETWORK & SECURITY FOUNDATIONS OVERVIEW Flashcards
(313 cards)
What device forwards data packets to all connected ports?
HUB
A hub is also known as a multi-port repeater.
What is the primary function of a modem?
Sending & receiving data, allows computers to transport digital info over analog lines
A modem connects to the internet.
Which device amplifies or regenerates signals to extend a network?
REPEATER
What does a switch do in a network?
Connects devices in a specific network and allows them to communicate efficiently using MAC addresses.
What is the function of a bridge in networking?
Joins 2 separate network segments together.
What is the primary role of a router?
Forwards data packets between two or more networks and determines the best path for transmission.
What does an edge router do?
Connects internal networks to external networks (Internet).
What is the purpose of a core router?
Routes data within a large network (Internet backbone).
What is the function of a wireless range extender (WRE)?
Extends the coverage of a wireless network.
What is a wireless access point (WAP)?
Connects wireless devices to a wired network.
What is the primary security device on a network?
FIREWALL
What does an inter-provider border router do?
Connects ISP to ISP, forming the core or backbone of the Internet.
What type of cable uses a foil or mesh shield to reduce noise and crosstalk?
STP (Shielded Twisted Pair)
What is a key characteristic of unshielded twisted pair (UTP) cabling?
Suitable for both office and home environments.
What is coaxial cable primarily used for?
Carrying cable TV signals and broadband cable Internet access.
How is data transmitted in fiber optic cables?
Using pulses of light.
What are the two types of fiber optic cables?
Single-mode & Multi-mode.
What type of fiber optic cable is best for long cable runs?
Single-mode.
What is a patch cable?
A short Ethernet twisted pair cable with RJ 45 connectors on both ends.
Which category of twisted pair cable is required for Gigabit network compatibility?
Category 5E.
What type of network focuses on personal workspace and can use NFC or Bluetooth?
PAN (Personal Area Network).
What defines a Local Area Network (LAN)?
A small computer network typically confined to a single room or building.
Which network type connects multiple buildings?
CAN (Campus Area Network).
What is the characteristic of a Metropolitan Area Network (MAN)?
Data network design used for a city, town, or municipality.