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| Section | Objectives |
|---|---|
| Topic 1: Automation and Orchestration | - Automation tools and APIs - YANG data models - NETCONF/RESTCONF protocols |
| Topic 2: Service Provider Cloud Architecture | - Cloud infrastructure components - Virtualization technologies - Service provider cloud design principles |
| Topic 3: Software-Defined Networking (SDN) | - OpenFlow protocol - SDN applications - SDN controllers |
| Topic 4: Service Provider Cloud Services | - Platform as a Service (PaaS) - Cloud service lifecycle management - Infrastructure as a Service (IaaS) |
| Topic 5: Network Function Virtualization (NFV) | - Virtual Network Functions (VNFs) - NFV orchestration - NFV architecture components |
| Topic 6: Security and Compliance | - Compliance requirements - Identity and access management - Cloud security frameworks |
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NEW QUESTION # 158 
Refer to the exhibit. An engineer must configure dual-homing with single active redundancy in a BGP EVPN VXLAN fabric. Which command must be run on the leaf router to complete the EVPN Ethernet segment configuration?
Answer: A
Explanation:
In a BGP EVPN VXLAN multi-homing design, Ethernet Segment Identifiers (ESIs) are used to represent a set of links from one or more leaf switches to the same downstream device (such as a CE, firewall, or aggregation switch). By default, when multiple leafs share the same ESI, the EVPN design supportsall-active redundancy, where all participating leafs can forward traffic for that Ethernet segment simultaneously.
However, some use cases-like connecting to devices that do not support multipath forwarding or for strict active/standby redundancy-requiresingle-activemulti-homing. In single-active mode, only one leaf in the Ethernet segment forwards traffic at any time; the other leaf(s) act as standby and only take over if the active node fails. This behavior is explicitly controlled in the EVPN Ethernet-segment configuration.
On Cisco platforms for EVPN VXLAN fabrics, this is configured under thel2vpn evpn ethernet-segment stanza using the command:
l2vpn evpn ethernet-segment 1
identifier type 0 01.01.01.10.10.10.10.10.10.10
redundancy single-active
* identifier type 0 ... defines the ESI for the multi-homed connection.
* redundancy single-active specifies that only one leaf in that ESI is allowed to be active at a time, thus enablingdual-homing with single-active redundancy.
The other options do not relate to Ethernet-segment redundancy mode:
* B. default-gateway advertiseis used in EVPN anycast gateway configurations to advertise the default gateway MAC/IP, not for ESI redundancy.
* C. replication-type staticis associated with multicast or ingress replication behavior for VXLAN VTEPs, not Ethernet-segment redundancy.
* D. vlan configuration 101is a VLAN configuration context command and has no effect on EVPN ESI redundancy.
NEW QUESTION # 159
Which two tools should be used to manage container orchestration? (Choose two.)
Answer: C,D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract from my knowledge of Designing and Implementing Cisco Service Provider Cloud Network Infrastructure Outlines without Any External URL or Links:
Container orchestration is the automated management of container lifecycle tasks such as deployment, scaling, failover, and updates. In Cisco cloud and NFV design guidance, typical orchestration platforms includeDocker (with Swarm)andKubernetes, which integrate with Cisco networking and security for cloud- native workloads.
* Dockerprovides the container runtime and can also perform basic orchestration through Docker Swarm mode, managing multi-container, multi-host deployments.
* Kubernetesis a full-featured orchestration system that automates deployment, scaling, and operations of application containers across clusters. It is the de-facto standard used with Cisco Container Platform and other Cisco cloud solutions.
VMware vCenter, Cisco vManage, and Cisco vSmart focus on virtual machines or SD-WAN control, not container orchestration. Therefore, the correct tools areDocker and Kubernetes (A, D).
NEW QUESTION # 160
Which KPI is essential in the VIM control plane for network assurance?
Answer: D
NEW QUESTION # 161 
Refer to the exhibit. An engineer must connect switch TOR1 and switch TOR2 to switch LEAF1 and switch LEAF2 by using double-sided vPCs. LEAF1 and LEAF2 are already configured as vPC peers. Which action must be taken next to complete the configuration?
Answer: D
Explanation:
In Cisco data center and cloud-scale designs, adouble-sided vPC(also called vPC-to-vPC) is used when both ends of a Layer 2 port channel are formed by a pair of switches that operate as vPC peers. In this model:
* On the aggregation or leaf side, two switches (in this case,LEAF1 and LEAF2) form a vPC domain with a vPC peer-link and keepalive.
* On the access or ToR side, two switches (in this case,TOR1 and TOR2) must also form their ownvPC domainwith a peer-link and vPC keepalive.
* The port-channel that interconnects the two vPC domains is then configured as a vPC on both sides, creating a vPC-to-vPC topology.
The problem statement specifies thatLEAF1 and LEAF2 are already configured as vPC peers. For a double-sided vPC to work, the other side (TOR1 and TOR2) must also behave as a single logical entity for the downstream Cisco UCS server and for the upstream vPC connection towards LEAF1 and LEAF2. This is only achieved when TOR1 and TOR2 are configured as vPC peers with:
* A vPC domain ID
* A vPC peer-link between TOR1 and TOR2
* vPC member port-channels towards LEAF1 and LEAF2 and towards the Cisco UCS server Therefore, the next required step is to configure avPC between TOR1 and TOR2.
Evaluation of the options:
* Option A, "Add all the switches to the fabric," is generic and not specific to vPC configuration. It does not address the technical requirement to form a vPC domain on the ToR side.
* Option B, "Configure peering between LEAF1 and LEAF2 and TOR1 and TOR2," is incorrect because vPC peering is only configured between the two switches that form each vPC domain (LEAF1-LEAF2 and TOR1-TOR2), not across all four switches together.
* Option C, "Configure MSTP between TOR1 and TOR2," is not required for establishing a double-sided vPC. vPC designs rely on the vPC control plane and the peer-link, not on spanning-tree between the vPC peers for normal operation.
* Option D, "Configure a vPC between TOR1 and TOR2," correctly describes configuring TOR1 and TOR2 as a vPC pair (vPC domain with peer-link), which is the mandatory step to create a double-sided vPC topology with LEAF1 and LEAF2.
NEW QUESTION # 162 
Refer to the exhibit. An engineer must deploy a Layer 3 EVPN over segment routing MPLS in the data center core; however, Cisco switch Spine_A fails to join the OSPF network. Which OSPF command must be run on Spine_A to resolve the issue?
Answer: C
Explanation:
To runEVPN over Segment Routing MPLS (SR-MPLS), the IGP (hereOSPF) must be enabled for segment routing so it can:
* Advertise Segment IDs (SIDs) for prefixes and links
* Carry SR extensions in OSPF LSAs
On Cisco devices, this is done under the OSPF process with:
router ospf 100
router-id 192.168.1.1
segment-routing mpls
Without the segment-routing mpls command, Spine_A will not participate correctly in the SR-enabled OSPF domain, and SR-related adjacencies/LSAs will not form as expected, resulting in failure to integrate into the intended SR-MPLS core.
The other options are not OSPF SR-enabling commands:
* A otv join-interface# OTV, unrelated to OSPF or SR-MPLS.
* B address-family ipv4# BGP address family, not OSPF.
* C connected-prefix-sid-map# Global SR mapping for connected prefixes but does not itself enable SR for OSPF.
Therefore, the correct command issegment-routing mpls (D).
NEW QUESTION # 163
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