Exam CISSP topic 1 question 11 discussion

"B" it is! Multiprotocol label switching (MPLS) is a technique for speeding up network connections that was first developed in the 1990s. The public Internet functions by forwarding packets from one router to the next until the packets reach their destination. MLPS, on the other hand, sends packets along predetermined network paths. Ideally, the result is that routers spend less time deciding where to forward each packet, and packets take the same path every time. Consider the process of planning a long drive. Instead of identifying which towns and cities one must drive through in order to reach the destination, it is usually more efficient to identify the roads that go in the correct direction. Similarly, MPLS identifies paths — network "roads" — rather than a series of intermediary destinations. https://www.cloudflare.com/learning/network-layer/what-is-mpls/

B is the answer, Multi protocol label switching. Ensures speed and efficiency of data routing. However, it is expensive and encryption must be set up separately. More control and allows for dedicated network paths.

MPLS is correct, however, technically speaking, with MPLS the first router does not really determine the full path that the packet will traverse, it only determines the next hop info using labels, not the full path. Only Segment Routing, not MPLS, would have this capability to have the 1st router determine the full path.

The answer is: B. Multiprotocol Label Switching (MPLS) Here's why the other options are incorrect: Synchronous Optical Networking (SONET): SONET is a physical layer technology that deals with the transmission of data over optical fiber. It doesn't handle path determination. Fiber Channel Over Ethernet (FCoE): FCoE is a protocol for encapsulating Fibre Channel frames over Ethernet networks. It doesn't involve path determination either. Session Initiation Protocol (SIP): SIP is a signaling protocol for establishing and terminating voice and video communication sessions. It doesn't handle path determination in WANs. MPLS, on the other hand, is a technology that uses labels to direct packets across a network. The first router in the path assigns a label to the packet, and subsequent routers simply switch the packet based on the label, eliminating the need for them to independently determine the entire path.

MPLS (Multiprotocol Label Switching) directs data across a network based on short path labels.

Total no brainer - B

B,MPLS

B is correct answer. MPLS

Multiprotocol Label Switching ( MPLS) is a routing technique in telecommunications networks that directs data from one node to the next based on short path labels rather than long network addresses, thus avoiding complex lookups in a routing table and speeding traffic flows.