31. What is NAT?
a) Network Address Translation, a protocol used for remote access to a network
b) Network Analysis Tool, a software used for network troubleshooting
c) Network Authentication Token, a security mechanism used for access control
d) Network Access Technology, a type of network cable
32. What is bandwidth?
a) The physical width of a network cable
b) The maximum amount of data that can be transmitted over a network in a given time period
c) The distance between two devices in a network
d) The frequency of network signals
33. Which layer of the OSI model is responsible for error detection and correction?
a) Physical layer
b) Data Link layer
c) Transport layer
d) Application layer
34. What is a gateway address?
a) The IP address assigned to a device in a network
b) The IP address assigned to a router in a network
c) The MAC address assigned to a device in a network
d) The MAC address assigned to a router in a network
35. What is a firewall?
a) A device that connects multiple devices in a LAN
b) A device that protects a network from unauthorized access
c) A device that connects a LAN to a WAN
d) A device that connects computers to the internet
