FIT1047 week 9 quiz

If a set of devices are connected to a hub, what is the LOGICAL topology of this system?

• Star (point-to-point)
• Shared bus (multi-point)
• Split bus (two points)

If a switch's forwarding table is empty:

• It will run faster
• It acts like a hub
• It won't be able to transfer any data

Which of these are differences between switches and routers?

• A switch uses IP addresses whereas a router uses MAC addresses
• A switch works on the data link layer whereas a router works on the network layer
• A router can have collisions but a switch can't
• A switch works within one LAN whereas a router connects different LANs

Which family of Wi-fi standards is being used today?

• IEEE 803.11
• IEEE 802.11
• IEEE 802.14
• IEEE 803.12

What is the difference between 2.4GHz and 5GHz bands?

• 2.4GHz has more bandwidth and the signal works better through walls
• 2.4GHz has less bandwidth and the signal works better through walls
• 5GHz has more bandwidth and the signal works better through walls
• 5GHz has less bandwidth and the signal works better through walls

Wi-Fi networks in the same physical area (e.g. neighbours) should:

• Use the same channel
• Not use the same channel

Do wireless networks use collision avoidance or collision detection?

• Collision avoidance
• Collision detection

A Wi-fi setup that allows devices to roam between different access points (like at Monash) is a:

• Independent BSS
• ESS
• Infrastructure BSS

Which of these devices should never be connected to Wi-Fi?

• Desktop computers
• Servers
• Mobile phones
• Routers

True or false: Wi-fi networks are more secure than wired networks

• True
• False