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Upon passing the Cisco 300-420 Exam, candidates will obtain the CCDP certification, which is highly valued in the networking industry. Designing Cisco Enterprise Networks certification validates their expertise in designing enterprise networks and demonstrates their commitment to their profession. It also opens up new career opportunities and enables networking professionals to take on more challenging roles within their organizations.
NEW QUESTION # 18
Refer to the exhibit. Customers report low video quality and delays when having point-to-point telepresence video calls between the two locations. An architect must optimize a design so that traffic follows the same path for egress and ingress traffic flows. Which technique optimizes the design?
Answer: D
Explanation:
IS-IS Level1 Router allways take the route towards the closest L2 Router, when trying to reach a destination outside the AS. That is the reason why the return-traffic takes a different way here.
The problem occurs because Level1 and Level2 topologies are examied separatly by the respective routers. The solution is to hand down Level2 routing-information about the destination networks into Layer1 routing, so it can be included into path selection.
NEW QUESTION # 19
Which PIM mode uses a shared tree only?
Answer: C
Explanation:
Explanation
The PIM mode that uses a shared tree only is the sparse mode. In sparse mode, PIM routers build a shared tree for multicast traffic, which is shared among all of the routers in the multicast domain. The shared tree is built from the source routers to the rendezvous point (RP) and then from the RP to the receivers. The advantage of sparse mode is that it requires less state information on the routers.
NEW QUESTION # 20
Drag and drop the types of WAN connectivity from the left onto the connectivity use cases on the right.
Answer:
Explanation:
Explanation:
The WAN connectivity mapping distinguishes private, public, and overlay connectivity use cases. Enterprise WAN design normally selects the transport according to the required security, availability, latency, cost, and operational control. MPLS Layer 3 VPN is commonly used when the enterprise needs private routed WAN service with provider-managed segmentation and predictable QoS behavior. Internet VPN designs are used when cost, rapid deployment, or broadband availability is more important, with IPsec or SD-WAN providing encryption and overlay control. Layer 2 services such as VPWS or VPLS are selected when the customer requires Ethernet adjacency, VLAN transport, or transparent LAN-like connectivity across sites. The drag- and-drop answer preserves those distinctions by matching each WAN type to the use case it is designed to support. A professional WAN architecture can combine these transports in a hybrid model, but the design must still identify which service carries private routing, which carries encrypted overlay traffic, and which provides Layer 2 extension. Reference topics: WAN transport selection, MPLS L3VPN, Internet VPN, Metro Ethernet, VPWS, VPLS, hybrid WAN design.
NEW QUESTION # 21
What is an advantage of using model-driven telemetry in the network?
Answer: C
Explanation:
A practical advantage of model-driven telemetry is that it sends structured data in machine-readable encodings, including JSON in supported implementations, making the data easier to consume with modern collectors and automation tools. Model-driven telemetry uses data models, commonly YANG, to define exactly which operational or configuration data is streamed. This is a major improvement over legacy monitoring approaches that repeatedly poll devices or parse human-oriented CLI output. The question option that points to structured JSON compatibility is the best available answer. Telemetry is not based on interrupt- driven polling; it is normally subscription based, either periodic or on-change. It also does not rely on MIB models as its primary structure in the way SNMP does. Parsing show command output is the older, brittle method that model-driven telemetry is intended to replace. The design benefit is cleaner, more predictable, and more programmable network state collection. Reference topics: model-driven telemetry, YANG data models, JSON encoding, subscription-based monitoring, network programmability.
NEW QUESTION # 22
A company has many spoke sites with two data centers. The company wants to exchange the routing information between the data centers and the spoke sites using EIGRP. All locations belong to a single AS, and auto-summarization is disabled. Which two actions must the company choose? (Choose two.)
Answer: B,D
NEW QUESTION # 23
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