[&] In MPLS terminology, which router receives a labeled packet, forwards the packet based on the contents of that label, and ensures that as the packet is transmitted, it is transmitted with an MPLS label still attached? (Select the best answer)
- Edge LSR
- Frame LSR
- Egress LSR
- Intermediate LSR -- Correct

[&] What is the field within an MPLS label that, if set, indicates that this is the final label and the Layer-3 header follows next? (Select the best answer)
- Last label flag
- Experimental flag
- Bottom of stack indicator -- Correct
- Stack end indicator

[&] What is the size of a single MPLS Label? (Select the best answer)
- 48-bits
- 32-bits -- Correct
- 64-bits
- 16-bits

[&] In an MPLS VPN environment, which of the following are true? (Select the best answer)
- CE routers form routing peering with other CE routers
- Data integrity is supplied by default
- Data confidentiality is supplied by default
- CE routers form routing peering with PE routers -- Correct

[&] In MPLS terminology, which router receives an unlabeled packet, looks it up in the IP Routing Table (or CEF FIB) and determines that a label needs to be created for that packet? (Select the best answer)
- Edge LSR -- Correct
- Intermediate LSR
- Egress LSR
- Frame LSR

[&] In frame-mode MPLS, where would you find the MPLS label inserted? (Select the best answer)
- Directly after the Layer-2 header -- Correct
- GRE doesn't utilize a unique header
- Directly after the first Layer-3 header
- Just before the Layer-4 header
- Directly in front of the user data