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300-540 neuester Studienführer & 300-540 Training Torrent prep
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Cisco 300-540 Prüfungsplan:| Thema | Einzelheiten | | Thema 1 | - High Availability: This section of the exam measures the skills of Cloud Infrastructure Architects and covers the design and implementation of redundancy and resiliency mechanisms in virtualized network functions and distributed cloud platforms. It includes data plane redundancy for VNFs, high availability within a single VIM control plane, and resilient compute, vNIC, and top-of-rack switching. The exam requires an understanding of multi-homing, EVLAG configurations, virtual private cloud deployment, and ECMP strategies for NFVI integrations with physical routing protocols such as BGP, OSPF, and IS-IS. Candidates must also recommend suitable high-availability models involving DNS, routing, and load balancing.
| | Thema 2 | - Cloud Interconnect: This section of the exam measures the skills of Service Provider Network Engineers and covers how large networks interconnect with cloud platforms and carrier-neutral facilities. Candidates are expected to understand various connectivity options to cloud providers, customer sites, and other neutral facilities, as well as evaluate WAN connectivity models such as direct connect, MPLS or segment routing, and IPsec VPN links. The domain also includes the ability to troubleshoot advanced data center interconnect solutions, including EVPN VXLAN, EVPN over SR
- MPLS, ACI-based connectivity, and pseudowire architectures supporting cloud-to-cloud and cloud-to-edge communication.
| | Thema 3 | - Security: This section of the exam measures the skills of Network Security Engineers and covers the implementation of infrastructure-level protection in cloud and NFVI ecosystems. It includes topics such as ACLs, uRPF, RTBH, router hardening, BGP flowspec, TACACS, and MACSEC. Candidates should understand DoS mitigation methods and apply security practices within NFVI, focusing on API protection, securing the control and management plane, and segmentation strategies in service provider cloud environments. The domain also evaluates basic knowledge of TLS, mTLS, and general cloud security solutions related to DNS protection, zero-day defenses, and malware detection.
| | Thema 4 | - Virtualized Architecture: This section of the exam measures the skills of Cloud Network Engineers and covers the foundational concepts of virtualized infrastructures used in modern service provider and cloud environments. Candidates are expected to understand constraints in IaaS designs, determine appropriate cloud service models, and demonstrate awareness of container orchestration compared to traditional virtual machines. The exam also evaluates the ability to implement key virtualization functions such as NFV, VNF, NSO, and virtualized Cisco platforms. Learners must be able to deploy NFV with automation tools, manage VNF onboarding, work with NSO-driven orchestration, and use protocols like NETCONF, RESTCONF, REST APIs, and gNMI within automated cloud ecosystems. A general understanding of supporting platforms such as OpenStack also forms part of the required knowledge in this domain.
| | Thema 5 | - Service Assurance and Optimization: This section of the exam measures the skills of Cloud Operations Engineers and covers assurance mechanisms used to maintain performance, stability, and visibility across NFVI environments. It includes network assurance concepts such as MANO frameworks, VNF workload monitoring, VIM control plane KPIs, and streaming telemetry with gRPC and gNMI. Candidates must understand cloud infrastructure performance monitoring tools, including SR-PM, NetFlow, IPFIX, syslog, SNMP traps, RMON, cloud agents, and automated fault management systems. The domain also touches on diagnosing NFVI-related errors and optimizing VNFs using techniques such as SR-IOV and software-accelerated virtual switching technologies like DPDK and VPP.
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Cisco Designing and Implementing Cisco Service Provider Cloud Network Infrastructure 300-540 Prüfungsfragen mit Lösungen (Q73-Q78):73. Frage
What role does NSO play in network virtualization?
- A. Decreases automation and orchestration capabilities
- B. Acts as a physical network switch
- C. Reduces network flexibility and scalability
- D. Provides centralized management and automation of network services
Antwort: D
74. Frage
Automation in deploying NFV can reduce:
- A. The need for manual configuration
- B. The speed of service delivery
- C. Network reliability
- D. Software-defined networking capabilities
Antwort: A
75. Frage
A large company's legacy network is set up with equipment from multiple vendors. The company engaged a network architect to optimize the network for virtualization. The architect must ensure robust and efficient operation, considering the company's immediate needs but also anticipating future network complexities and scalability requirements. The chosen strategy must be capable of integrating seamlessly with existing systems, while providing a pathway for innovation and growth. The solution must facilitate end-to-end service automation throughout the entire lifecycle, and the implementation must ensure the validation, execution, and abstraction of network configurations and services. Which action must be taken to meet the requirements?
- A. Implement a flexible service-modeling approach that leverages automation for ongoing management and refinement as demands on the network evolve.
- B. Implement a service life-cycle approach with simplified monitoring that plans for post-deployment adjustments to be incorporated into the automation CI/CD pipeline.
- C. Implement a configuration-management approach that allows for configuring each network device individually to optimize its performance.
- D. Implement a service-modeling approach with a static YANG one-size-fits-all model that includes the unique requirements of each different network element.
Antwort: A
Begründung:
Cisco NSO-based orchestration principles in a multi-vendor environment require:
Service modeling using flexible, reusable YANG models
Abstraction of vendor-specific device differences
Transaction-safe configuration validation and execution
End-to-end automation across lifecycle stages (Day-0, Day-1, Day-N)
Scalability and adaptability for evolving requirements
Option C aligns perfectly with NSO service-modeling approaches:
Service models must be flexible, not rigid, enabling changes as technologies and needs evolve.
The architecture must support continuous refinement, enabling multi-vendor abstraction and lifecycle automation.
This ensures the network evolves seamlessly while remaining stable and automated.
Why the Other Options Are Incorrect
A - Simplified monitoring and post-deployment adjustments do not meet the core need for full lifecycle service modeling and abstraction.
B - Configuring devices individually contradicts the entire purpose of orchestration and abstraction.
D - A static YANG model cannot accommodate multi-vendor environments or future scalability.
Thus, only Option C matches full NSO-capable service modeling requirements.
76. Frage
A virtual private cloud (VPC) is implemented to provide __________ isolation within a public cloud environment.
- A. physical
- B. user
- C. application
- D. network
Antwort: D
77. Frage
Refer to the exhibit. An engineer must stop a DoS attack on web and mail servers by using destination-based RTBH routing. Which two commands must be run on router R1? (Choose two)
- A. no ip route 10.30.10.0 255.255.255.0 10.10.10.2
- B. ip route 10.30.10.2 255.255.255.255 null0
- C. ip route 10.20.10.1 255.255.255.255 null0
- D. no ip route 10.20.10.0 255.255.255.0 10.10.10.2
- E. ip route 10.20.10.2 255.255.255.255 null0
Antwort: B,E
Begründung:
Destination-based Remote Triggered Black Hole (RTBH) routing is a DDoS mitigation technique where trafficto a victim's IP addressis intentionally routed to a special next hop (usually Null0) so that the traffic is dropped as close to the source as possible.
On the edge router (R1 in the figure), this is accomplished by installing/32 static routesfor the victim endpoints, pointing to the null interface. When these routes are installed (often triggered via BGP in larger deployments), any traffic destined to those exact IP addresses is discarded.
In the topology:
* Web server IP:10.20.10.2
* Mail server IP:10.30.10.2
To perform destination-based RTBH at R1, we must configure static /32 routes to Null0 for each victim IP:
ip route 10.20.10.2 255.255.255.255 Null0
ip route 10.30.10.2 255.255.255.255 Null0
These correspond to:
* Option Cfor the web server (10.20.10.2)
* Option Afor the mail server (10.30.10.2)
The other options are incorrect for RTBH:
* BandDremove /24 routes via 10.10.10.2; they do not implement black-holing and would break normal routing rather than selectively drop attack traffic.
* Eblack-holes 10.20.10.1, which is the default gateway on R2, not the victim server; that would impact overall connectivity instead of just dropping traffic to the attacked host.
78. Frage
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