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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security | 15% | - Segmentation, encryption, TLS/mTLS, threat mitigation - BGP Flowspec, TACACS+, MACsec, zero-trust principles - Infrastructure protection: ACL, uRPF, RTBH, router hardening - Control/management plane security, API protection |
| Topic 2: Virtualized Architecture | 25% | - Cloud service models: IaaS, PaaS, SaaS, FaaS - IaaS constraints, VLAN scale, segmentation - NFVI design, resource allocation, multi-tenancy - Virtual machine and container orchestration |
| Topic 3: High Availability | 20% | - ECMP, BGP multi-path, failure detection and failover - Recovery procedures, graceful degradation, business continuity - Redundancy models for VNFs and distributed infrastructure |
| Topic 4: Cloud Interconnect | 25% | - Connectivity options: direct connect, MPLS, segment routing - WAN optimization, overlay networks, peering strategies - Latency, redundancy, traffic engineering for hybrid environments - Interconnection with public cloud, on-prem, carrier-neutral facilities |
| Topic 5: Service Assurance and Optimization | 15% | - Monitoring, telemetry, performance metrics, troubleshooting - Fault management, SLA compliance, analytics - QoS design, traffic optimization, capacity planning |
This kind of polished approach is beneficial for a commendable grade in the Designing and Implementing Cisco Service Provider Cloud Network Infrastructure (300-540) exam. While attempting the exam, take heed of the clock ticking, so that you manage the Designing and Implementing Cisco Service Provider Cloud Network Infrastructure (300-540) questions in a time-efficient way. Even if you are completely sure of the correct answer to a question, first eliminate the incorrect ones, so that you may prevent blunders due to human error.
NEW QUESTION # 26
An engineer must configure NTP servers in Cisco Enterprise NFVIS. The primary NTP server has an IP address of 192.168.1.1 and the backup NTP server has an IP address of 192.168.2.1. Which two commands must be run to complete the configuration? (Choose two.)
Answer: A,B
Explanation:
InCisco Enterprise NFVIS, time synchronization is configured using thesystem time ntpcommand structure.
NFVIS requires a primary and optionally a backup NTP server to maintain accurate system time for the hypervisor and guest VMs.
Correct NFVIS command syntax for NTP configuration:
* system time ntp preferred_server <IP>This command configures thepreferred (primary)NTP server used for system clock synchronization.
* system time ntp backup_server <IP>This command configures thebackupNTP server, which the system uses if the primary becomes unreachable.
These two commands match Cisco NFVIS time-configuration behavior described in NFV infrastructure design and implementation guidelines.
Why the Correct Answers Are A and E
Option A: system time ntp preferred_server 192.168.1.1
This properly configures the primary NTP server in NFVIS. The preferred server is always the first choice for time synchronization.
Option E: system time ntp backup_server 192.168.2.1
This correctly configures the backup NTP server. If the preferred server fails, NFVIS automatically falls back to the backup server.
Both commands directly match NFVIS's NTP command hierarchy and are the only ones that correctly apply to NFVIS.
Why the Other Options Are Not Correct
Option Buses utils ntp, which is not an NFVIS command.
Option Csets manual time and does not configure NTP servers.
Option Dalso uses the utils ntp syntax, which applies to other Cisco platforms but not NFVIS.
NEW QUESTION # 27 
Refer to the exhibit. An engineer must design a solution that creates a low-latency slice based on a link latency measurement by using the MPLS performance measurement. The solution must create a secure slice that minimizes transport costs and meets transport SLAs beyond best effort. What must be used?
Answer: B
Explanation:
The requirements in the scenario match the capabilities ofSegment Routing (SR-MPLS)combined with MPLS Performance Measurement (MPM):
1. Low-latency slice creation
Segment Routing allows deterministic paths using:
* SR-TE (Traffic Engineering)
* Colored or intent-based policies
* Path selection based onlink latency, loss, bandwidth, or utilization
MPLS Performance Measurement supplies real-time data such as:
* One-way delay
* Round-trip delay
* Loss metricsThis allows SR-TE to compute paths withminimum latency.
2. Secure slice with minimized transport cost
Segment Routing supports:
* Slicing throughSR Policies
* Steering encrypted traffic (IPsec/GETVPN) through specific SR tunnels
* Traffic separation without requiring additional MPLS LSP state in the core
* Optimizing transport cost via constraint-based TE computations
3. Transport SLA enforcement beyond best effort
SR-TE + MPM provides:
* SLA-aware intent routing
* Guaranteed performance paths
* Automatic re-optimization if links violate latency or loss SLAs
Why the other options are incorrect
* B. IPsec VPNProvides encryption but does not offerlatency-aware or SLA-based path selection. Not a slicing mechanism.
* C. AWS Direct ConnectCloud connectivity service. Not related to MPLS performance monitoring or transport slicing.
* D. Transit VPC for AWSUsed for SD-WAN cloud integration. Does not support SR-TE slicing or MPLS SLAs.
Therefore, onlySegment Routingprovides latency-based path computation, slicing, SLA guarantees, and cost optimization.
NEW QUESTION # 28
BGP flowspec is primarily used for:
Answer: B
NEW QUESTION # 29 
Refer to the exhibit. An engineer is troubleshooting an issue with switch LEAF-SW-11. The engineer observes that several main servers on the VXLAN BGP EVPN Multi-Site network experience 50-60% packet loss inbound and outbound, and all the DCI tracking interfaces are down. Which two actions must be taken to resolve the issue? (Choose two.)
Answer: A,C
Explanation:
In a VXLAN BGP EVPNMulti-Siteenvironment:
* DCI trackingmonitors the health of the DCI links. If all DCI-tracking interfaces go down, the leaf can incorrectly keep advertising or learning remote MAC/IP reachability, leading to packet loss and sub- optimal forwarding for servers in that VLAN/L2VNI.
* For proper operation, eachDCI-facing interfacemust be enabled with evpn multisite dci-tracking so that the Multi-Site border leaf tracks reachability over that link.
* When using EVPN Multi-Site, BUM (broadcast, unknown unicast, multicast) traffic toward remote sites is typically handled viaingress replication, not multicast groups, for each L2VNI participating in Multi-Site. The configuration snippet shows an L2VNI (vn-segment 16535) still mapped to mcast- group 239.1.1.0, which is inconsistent with Multi-Site recommendations and contributes to packet loss.
Therefore, to fix the problem:
* Enable DCI tracking on the uplink:
* interface Ethernet1/1
* evpn multisite dci-tracking
This restores proper DCI-link state monitoring for Multi-Site. #Option C
* Change the L2VNI behavior from multicast to Multi-Site ingress replication:
Under the VNI for VLAN 11, configure:
evpn
vni 16535 l2
multisite ingress-replication
or the equivalent command for the specific NX-OS release, thereby aligning the L2VNI with EVPN Multi- Site design and eliminating packet loss. #Option D Options A and B are ELAM (embedded logic analyzer) filters used only for packet capture and do not resolve the forwarding issue.
Option E is an ACL line unrelated to EVPN VXLAN or DCI tracking and does not address the underlying problem.
NEW QUESTION # 30
Which format is used by Cisco Container Platform for configuration files?
Answer: B
Explanation:
Comprehensive and Detailed Explanation
Cisco Container Platform (CCP), built on Kubernetes orchestration, usesYAMLfiles for:
* Cluster configuration
* Pod definitions
* Network settings
* Storage mappings
YAML is the industry-standard declarative syntax for Kubernetes and container orchestration platforms.
HTML, XHTML, and XML are not used for CCP configuration.
NEW QUESTION # 31
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