Jeremy Ccna
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[...] firewalls are software applications that filter traffic entering and exiting a host machine, like a PC.
Host-based
A [...] provides connectivity to hosts within the same LAN.
switch
A firewall which combines a traditional firewall with more advanced filtering functionalities is known as a '[...] firewall'.
next-generation
[...] is a device that accesses a service made available by a server.
client
What does LAN stand for?
Local Area Network
A [...] is used to send data over the Internet.
router
A computer network is a digital telecommunications network which allows [...] to share resources.
nodes
[...] and [...] are also known as 'end hosts' or 'endpoints'.
Servers / clients
A [...] monitors and controls network traffic based on configured rules.
firewall
A [...] is a device that provides functions or services for clients.
server
What kind of network device is a Cisco ASA?
Firewall
A [...] has many network interfaces for end hosts to connect to.
switch
Routers have [...] network interfaces than switches.
fewer
Can a single device be both a client and a server?
Yes
What kind of network device is a Cisco ISR?
Router
What kind of network device is a Cisco Firepower?
Firewall
A [...] is a device that accesses a service made available by a server.
client
What kind of network device is a Cisco 'Catalyst'?
Switch
The two computers use a protocol to communicate with the same layer on another computer. The protocol defines a header that communicates what each computer wants to do.
Same-layer interaction on different computers
On a single computer, one lower layer provides a service to the layer just above. The software or hardware that implements the higher layer requests that the next lower layer perform the needed function.
Adjacent-layer interaction on the same computer
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