Can a single device be both a client and a server? - Yes
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
What kind of network device is a Cisco ISR? - Router
[...] 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