YES
That should be "NO". You can check if your drive is a dual layer burner by looking at the symbols on the side of the Drive. If a drive is able to burn Dvd-9 (Duel Layer DVD), it will have R or RW with a 'DL' after it.
I followed the previous answer and found out my drive could not write the discs correctly.
VSAT is a layer 2 device.
Transport Layer
A Switch is a Layer 2 device as they operate in the data link layer
layer of sand then a layer of activated charcoal then a layer of gravel.
There are no layer 1 switches; switches run at layer 2 or 3. A hub is a layer 1 device.
because one layer is the electrical part, and the other layer is the place where the switch is on.
Physical layer
i do no
firewall, router,layer 3 switches and i approve that answer ! NO! In general the firewall is a layer 4 device, it traffics filter incoming and outgoing ports. It uses the function of TCP and UCP. However a Firewall can also be a layer 3 device as in internal firewall in a router. Also a switch is a layer 2 device unless your talking about a Router switch.
hub is the device that is used to extend the lan segment and used at layer1 that is physical layer.
yes. thougth the nic is a layer 1 device its mac address is used in datalink layer
Layer 3