On a Carrier's MPLS VPN Network, PE1 and PE2 Transmit

question 493

Multiple Choice

On a carrier's MPLS VPN network, PE1 and PE2 transmit data packets between VPNs. After PE1 receives VPN route 172.16.1.0/24 from a client, it converts the route into a VPNv4 route and distributes label 1027 to the packet. After the packet arrives at PE2, PE2 distributes label 1025 to the packet. When a client on PE2 accesses this route, what are the outer and inner labels in the packet transmitted over the carrier network?

• A) Outer label: 1027; inner label: 1025
• B) Outer label: 1025; inner label: 1025
• C) Outer label: 1027; inner label: 1027
• D) Outer label: 1025; inner label: 1027

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Definitions:

Experimental Group

The group in an experimental setup that is exposed to the variable or condition being tested, as opposed to the control group.

Hypothesis

A testable statement about the nature of an observation or relationship. Compare with scientific theory.

Decomposers

Microbial heterotrophs that break down dead organic material and use the decomposition products as a source of energy. Also called saprotrophs or saprobes.

Ecosystem

A community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.