Starting with the Cisco Data Center Certification, the Cisco is a global leading industry giant providing technical solutions in the computer networking area. It provides unique technical certifications which can help professionals in the network industry to showcase their skills as an expert by taking the exams. These exams not only help the individuals to showcase their skills but it also allows them to broaden their career opportunity and progressing their earning graph to a new all-time high levels.

Cisco Data Center layer 2/layer 3 connectivity are some of the basic elements which are asked in the CCIE Data Center lab examination. The individuals have to pass the written examination for CCIE Data Center with no formal prerequisites before taking up another lab examination. The lab examination can be taken within the 18 months of passing the written exam. Once the individuals get their schedule for their lab examination. They must keep in mind that preparation is the key which can be only done through proper planning otherwise the individuals can end up blowing their exam fee and time. Because, if the individual fails this lab exam then they must retake their lab exam within the coming twelve months in order to keep their written exam valid.

The individuals should also keep it very clear that the only passing tip is to get good hands-on practical knowledge and the individual must know what they are being asked in this exam and what are they doing in return. The lab exam is an eight-hour exam divided into two parts;

Diagnostic Module (One Hour Duration)

The individuals are given one-hour time frame where they are tested for their skills in diagnosing issues arising in the complex data centre topology using the data available from the resources without accessing any devices.

Configuring and Troubleshooting Module (Seven Hours Duration)

This is the the time when the individuals are required to show their skills in configuring and troubleshooting the data center topologies using the experience which they have gained by practising practical knowledge. So the tip for passing the entire lab exam is to get good hands-on practice.

The exam topics are quite challenging however upon the successful completion of this certification validates that the passed individuals have every right expertise required to handle the modern data center. There are around six core exam contents which Cisco Data Center lab examination is all about and among which Cisco Data Center Layer 2/Layer 3 Connectivity is at the top.

This topic concludes that the individuals have the ability to design, implement and troubleshoot layer 2 technologies via link aggregation, tagging/trunking, spanning tree protocol. The successful candidates are also able to design, implement and troubleshoot external fabric connectivity using L2/L3Out and VRF-Lite. Describing interfabric connectivity through multipod and multisite. Moreover, the other qualities are designing, implementing and troubleshooting:

Overlays using VXLAN, EVPN, OTV
Routing Protocols and Features like OSPF, IS-IS, BGP, BFD, FHRP
Multicast protocols like PIM, IGMP
Traffic management like Queueing, Policing, Classification/marking, RoCE.

Cisco Data Center Layer 2/Layer 3 connectivity, in short, has broader applicability so the individuals must note that they have to work hard and in the meantime they should take time to go through the OSI7 layers model which is a conceptual standard designed to best describe the layers model. Understanding this OSI can also, clear layers concepts allowing individuals to get good hands on this topic while the other topics included in CCIE Data Center Unified Exam Topics v2.1 are:

Cisco Data Center Network Services

Data Center Storage Networking and Compute
Data Center Automation and Orchestration
Data Center Fabric Infrastructure
Evolving Technologies