NETWORKING

What does LAN stand for?

• Large Area Network

• Local Access Network

• Local Area Network

• Linked Area Nodes

Which of these is NOT a characteristic of a WAN?

• Covers a large geographical area

• Uses routers for communication

• Limited to a single building

• Can connect multiple LANs

What device is mainly used to connect LANs together in a WAN?

• Switch

• Hub

• Router

• Modem

Which of these devices operates at Layer 2 (Data Link Layer) of the OSI Model?

• Router

• Switch

• Firewall

• Repeater

What is the default subnet mask for a Class C network?

• 255.0.0.0

• 255.255.0.0

• 255.255.255.255

• 255.255.255.0

Which command helps you check connectivity between two devices?

• tracert

• ping

• nslookup

• ipconfig

What is the main security risk of using an open Wi-Fi network?

• Unauthorized access & data theft

• Faster speeds

• Higher bandwidth usage

• limited number of devices

True or False: A WAN can exist without using the internet.

• True

• False

True or False: An IP address uniquely identifies a device in a network.

• True

• False

True or False: A switch can replace a router in a WAN.

• True

• False