1 Network Components Flashcards
Order, Definition, Purpose
Order of Network Components
1) Client
2) Server
3) Hub, Bridge
4) Switch
5) Wireless Access Point WAP or AP
6) Router
7) Firewall
8) Load Balancer
9) Proxies
10A) Intrusion Detection
10B) Intrusion Protection
11) Controllers
12) NAS
13) SAN
14) Media
15) WAN Wide Area Networks
What are Clients? (1)
CLIENTS:
Are devices that users access the network with.
EX: Computers, Cell phones, Laptops, smart TV’s, Tablets, and even WiFi enabled thermostats.
What is a Server? (2)
SERVERS:
Store large amount of data and Provide resources to the network.
Ex: File servers, email servers, web servers and many more types.
What is a Hub? (3A)
HUBS:
Hubs are a Layer 1, older network device that connects other devices like clients and servers over LANs by Broadcasting the data to all connections on that LAN.
What is a Bridge? (3B)
BRIDGES :
Are a Layer 2 connection devise because they filter traffic based on MAC address. They sub divides Lan’s and send data to only the intended subdivided LAN.
What is a Switch? (4)
SWITCHES:
Switches are a layer 2 device. They learn which devices are on each port by the devices MAC Address and only forward data to one port. Switches only Forward Data within 1 LAN.
What is a WAP or AP? (5)
WAPS or AP’s are:
Wireless access points allow wireless devices to connect to a wired network through radio frequencies.
What is a Router? (6)
ROUTERS:
Routers are used to connect different networks together. Routers use IP address to make intelligent forwarding decisions. They predominantly use the (IP) Internet Protocol to forward the data across networks.
What is a Firewall? (7)
FIREWALLS are:
Firewalls are Security barriers between internal networks and the external world. Usually the (INTERNET).
What is a Load Balancer? (8)
LOAD BALANCERS are:
Load Balancers are devices or software that distribute network or application traffic across multiple servers preventing any one server from becoming a bottleneck. Improves network performance.
What is a Proxy? (9)
PROXY:
Acts as an intermediary between the user’s device and the internet. Proxies provide :
1) Web filtering
2) Shared Network Connections
3) Data Caching
4) Enhanced Security/Privacy by
hiding the clients real IP Address
from the internet
What is a IDS? (10A)
IDS:
INTRUSION DETECTION SYSTEM
Detects unauthorized access or anomalies and alerts administrators.
What is a IPS? (10B)
IPS:
INTRUSION PROTECTION SYSTEM
Detects threats and also takes action to prevent intrusion.
What is a Controller? (11)
CONTROLLERS are:
In the Software-Defined Networking (SDN) context, these are central units used to manage flow to networking devices.
What is a NAS? (12)
NAS are:
NETWORK-ATTACHED STORAGE (NAS) DEVICE
Dedicated file storage system that provides data access to a heterogeneous (Different Mix) of group of clients, connected within a network.
What is a SAN? (13)
SANs are:
STORAGE AREA NETWORK.
High-speed network that provides access to consolidated block-level data storage. Handle large amounts of data and are typically used to enhance disk arrays and tape libraries.
What is Media? (14)
MEDIA is:
The Physical materials used to transmit data.
EX: Copper, Fiber, and wireless signals.
What is a (WAN)? (15)
WANs are:
WIDE AREA NETWORK LINKS.
A WAN Covers long geographical distances to connect internal networks. An example of this is the INTERNET. WANS consists of Lease lines and or Virtual Private Networks. The INTERNET is the largest WAN available. A WAN is not always public. EX The U.S. Government.
