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| Section | Objectives |
|---|---|
| Enterprise Campus Network Design | - Campus LAN architecture - Spine-leaf and hierarchical design models |
| Security Design in Enterprise Networks | - VPN and perimeter security architecture - Segmentation and access control design |
| Network Services Design | - Multicast and QoS design considerations - Routing protocols design (OSPF, EIGRP, BGP) |
| Network Automation and Programmability | - API-driven network automation concepts - Controller-based networking design |
| WAN and Edge Connectivity Design | - SD-WAN architecture and design considerations - Traditional WAN and internet edge design |
| Enterprise Network Design Principles | - Scalability and high availability design - Design methodologies and best practices |
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NEW QUESTION # 165
Exhibit:
Refer to the exhibit. An engineer is designing a Layer 2 campus network. The design must support fast convergence and leverage as much bandwidth as possible between layers. Distribution switches do support VSS; unfortunately, not all routing protocols are available for use due to license limitations. Which solution must the engineer choose?
Answer: C
NEW QUESTION # 166
What are two valid scaling techniques when an EIGRP network is designed that consists of more than 1000 routers? (Choose two.)
Answer: A,C
NEW QUESTION # 167
Which option will help build your customers platform during the discovery phase?
Answer: A
NEW QUESTION # 168
Which integration capability does gRPC provide?
Answer: C
Explanation:
gRPC provides efficient integration by using protocol buffers to serialize and deserialize structured data over the network. In network programmability and telemetry designs, gRPC is commonly used as the transport framework for streaming model-driven telemetry or for remote procedure calls between collectors, controllers, and network devices. Protocol buffers define compact structured messages that are faster and less ambiguous than parsing text output. This makes gRPC suitable for high-volume telemetry and programmatic device interaction. LDAP is a directory and authentication-related protocol, not the integration mechanism provided by gRPC. XMPP is associated with messaging and presence systems, not gRPC data serialization.
Graph API is not a gRPC feature. The operational value of gRPC is that it provides a modern RPC framework with efficient message encoding, service definitions, and support for secure transport through TLS when implemented by the platform. Reference topics: gRPC, protocol buffers, model-driven telemetry, network programmability, structured data serialization. It improves controller interoperability.
NEW QUESTION # 169
An ISP provides Layer 3 VPN service over MPLS to a customer with four branches and multiple CE routers at each branch. To exchange the routes that are learned from the CE routers, which BGP address family should the ISP activate among the PE routers?
Answer: A
Explanation:
The provider must activate the VPNv4 unicast address family between PE routers. In an MPLS Layer 3 VPN, customer routes learned from CE routers are placed into VRFs on the PE routers. To carry those customer routes across the provider backbone without overlap, MP-BGP advertises VPNv4 routes, which combine an IPv4 prefix with a route distinguisher. Route targets then control which receiving VRFs import the routes.
Plain IPv4 unicast would not preserve customer VPN context and would not solve overlapping route separation. L2VPN EVPN is used for Ethernet VPN services and data center or Layer 2 VPN use cases, not classic MPLS L3VPN route exchange between PEs. Address-family multicast is unrelated to exchanging customer unicast routes between PE routers. Cisco MPLS VPN design relies on MP-BGP VPNv4 between provider edge routers, while PE-CE routing can be static, OSPF, EIGRP, BGP, or another supported method.
Therefore, VPNv4 unicast is the correct PE-to-PE address family. Reference topics: MPLS Layer 3 VPN, MP- BGP, VPNv4 unicast, route distinguishers, route targets, PE-CE routing.
NEW QUESTION # 170
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