Definitions Flashcards
(17 cards)
Host Address
A device’s address:
192.168.1.89
Network Address
Indicates the start and the presence of a network:
192.168.1.0
Default Gateway
A device capable of sending traffic to other networks (such as the internet).
Router
Connects devices on a network and passes data between them.
Switch
A Device that aggregates devices via Ethernet.
Ring Topology
A network structure where devices form a loop and forward messages to the next device in one direction only.
Bus Topology
A network structure with a single connection (backbone cable). All devices on the network stem from this cable.
Star Topology
A network structure with a central device that sends all data.
Octet
The sections of an IP address.
MAC Address
The unique ID of the Network Interface Card.
Recursive DNS server
Server that holds a cache of commonly used DNS records.
Root Server
Redirects you to the appropriate Top Level Domain server (one for .coms, one for edus, etc).
TLD Server
Top Level Domain Server
Holds records on where to find the Authoritative server that has the requested DNS record.
Authoritative Server
Holds the DNS records. Updates are done here.
CDN
Content Delivery Network
A website hosted over many servers. Connects the client to the closest server.
WAF
Web Application Firewall
Monitors for suspicious activity and blocks clients accordingly.
Load Balancer (3)
- Divies up requests among multiple servers.
- Provides access to a backup via redundency.
- Performs health checks on servers and halts traffic if the server is malfunctioning.
