ENSA Module 7 -- MPLS

What does MPLS stand for in networking?

• Multi-Protocol Label Switching

• Multi-Path Label Switching

• Multi-Protocol Layer Switching

• Multi-Path Layer Switching

In MPLS, what is the primary function of a PE?

• To assign labels to incoming packets

• To switch packets based on labels

• To remove labels from outgoing packets

• To manage the MPLS network

What is the main advantage of MPLS over traditional IP routing?

• Lower cost

• Faster packet forwarding

• Easier configuration

• Better security

How does MPLS improve the efficiency of data transmission in a network?

• By reducing the number of hops

• By using shorter paths

• By using labels instead of IP addresses for routing

• By compressing data packets

What is a key feature of MPLS VPNs?

• They use encryption for data security

• They provide a virtual private network over an MPLS infrastructure

• They require dedicated physical connections

• They are only used for voice traffic

Which layer of the OSI model does MPLS operate on?

• Layer 2

• Layer 3

• Layer 2.5

• Layer 3.5

What is a common use case for MPLS in modern networks?

• Home networking

• Small office networks

• Large enterprise and service provider networks

• Personal mobile devices

• The service provider participates in customer routing by establishing a peering between the customer’s routers and the provider’s routers.

• L3 MPLS VPN

• L2 MPLS VPN

• L1 MPLS VPN

• L4 MPLS VPN

• The customer routes that are received by the provider’s router are redistributed through the MPLS network to the customer’s remote locations.

• L3 MPLS VPN

• L2 MPLS VPN

• L1 MPLS VPN

• L4 MPLS VPN

• The service provider is not involved in the customer routing. Instead, the provider deploys a Virtual Private LAN Service (VPLS) to emulate an Ethernet multiaccess LAN.

• L3 MPLS VPN

• L2 MPLS VPN

• L1 MPLS VPN

• L4 MPLS VPN