Printable & Easy to Use 300-540 Dumps 100% Same Q&A In Your Real Exam [Q47-Q66]

Printable & Easy to Use 300-540 Dumps 100% Same Q&A In Your Real Exam

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Cisco 300-540 Exam Syllabus Topics:

Topic	Details
Topic 1	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.
Topic 2	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.
Topic 3	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.
Topic 4	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.
Topic 5	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.

 

NEW QUESTION # 47
FaaS is an ideal cloud service model for:

• A. Large, monolithic applications
• B. Event-driven, short-lived microservices
• C. Applications requiring extensive customization of the underlying OS
• D. Data-intensive, long-running processes

Answer: B

NEW QUESTION # 48
Software-accelerated virtual switches like DPDK and VPP enhance VNF performance by:

• A. Reducing the need for high availability
• B. Lowering network throughput
• C. Increasing network latency
• D. Improving packet processing speed

Answer: D

NEW QUESTION # 49
Which of the following is essential for data plane high availability?

• A. A single vNIC
• B. Single TOR switch
• C. Redundant Top of Rack (TOR) switches
• D. Single compute node

Answer: C

NEW QUESTION # 50
Streaming telemetry with gRPC and gNMI is used for:

• A. Physical network repairs
• B. Real-time network monitoring
• C. Reducing network traffic
• D. Data encryption

Answer: B

NEW QUESTION # 51
In the context of cloud deployments, hybrid refers to:

• A. Deployments that mix SaaS and IaaS service models
• B. A combination of Linux and Windows servers
• C. A mix of on-premises and off-premises infrastructure
• D. The use of both physical and virtual network functions

Answer: C

NEW QUESTION # 52
What is a valid connection method between carrier-neutral facilities that are more than 20 miles away from each other?

• A. Carrier access Ethernet ring
• B. CAT6e connection
• C. Private wireless connection
• D. Multimode fiber connection

Answer: A

Explanation:
Comprehensive and Detailed Explanation
For distancesgreater than 20 miles, valid inter-facility transport options must support:
* Metro-scale connectivity
* High bandwidth
* Low latency
* Carrier-grade reliability
Acarrier access Ethernet ring (MEN / Metro Ethernet)is designed for:
* Interconnecting data centers or meet-me rooms
* Distances far exceeding 20 miles
* High-availability layer-2 or layer-3 transport
Why the others are invalid:
* CAT6e# maximum ~100 meters
* Multimode fiber# typically <2 km (~1.25 miles)
* Private wireless# not used for high-capacity DC interconnects, unreliable for core transport Thus, the only correct carrier-grade method isCarrier access Ethernet ring.

NEW QUESTION # 53

Refer to the exhibit. An engineer is troubleshooting a physical configuration issue in Cisco NFVI. Which two observations should be made? (Choose two.)

• A. One RAID 1 disk failed.
• B. The node is no longer functional.
• C. Two RAID 1 disks failed.
• D. The node allows two disks to fail.
• E. The node is still functional.

Answer: A,E

Explanation:
From the RAID controller output:
* TheRAID1virtual drive is shown as"Dgrd" (degraded)with a note:"RAID 1 in degraded state."
* In thePD LIST, one disk (slot 2) is marked"UGood - active disk in slot 2 disconnected from drive group 0", while the other (slot 3) is"Onln 0"(online and part of drive group 0).
This means:
* In aRAID 1mirror, onlyone diskmay fail while the array remains available.
* Here,one disk has failed/disconnected, the other is still online # the array isdegraded but operational.
Therefore:
* B. One RAID 1 disk failed- correct.
* C. The node is still functional- correct; RAID1 can tolerate a single disk failure.
The other options are incorrect:
* A and Esuggest two disk failures, which is not indicated.
* Dwould be true only if both disks failed; with one disk still online, the node continues to function, though in a degraded state.

NEW QUESTION # 54

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?

• A. Configure a vPC between TOR1 and TOR2.
• B. Add all the switches to the fabric.
• C. Configure MSTP between TOR1 and TOR2.
• D. Configure peering between LEAF1 and LEAF2 and TOR1 and TOR2.

Answer: A

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 # 55
BGP multi-path is used in ECMP to enable __________ routing paths for traffic.

• A. single
• B. dual
• C. no
• D. multiple

Answer: D

NEW QUESTION # 56
Virus detectors are crucial for:

• A. Detecting and removing malicious software
• B. Managing network bandwidth effectively
• C. Increasing the efficiency of network protocols
• D. Enhancing the physical security of network devices

Answer: A

NEW QUESTION # 57

Refer to the exhibit. An engineer must configure iBGP multipath load sharing across three paths. Which two commands must be run on router R2? (Choose two.)

• A. ip load-sharing ibgp 3
• B. ip load-sharing per-destination
• C. maximum-paths ibgp 3
• D. router bgp 100
• E. router bgp 101

Answer: C,D

Explanation:
RouterR2is insideAS 100and has three iBGP paths (via R3, R4, R5) toward AS 101. To performiBGP multipathacross these three equal-cost paths, BGP must:
* Run the correct BGP process forAS 100
* Allow installation of multiple iBGP paths in the routing table
This is done with:
router bgp 100
maximum-paths ibgp 3
* router bgp 100- enters the BGP process for AS 100 (correct AS per diagram).
* maximum-paths ibgp 3- tells BGP to keep up to 3 iBGP paths to the same destination, enabling CEF to load-share across them.
Other options:
* ip load-sharing ibgp 3- not a valid command.
* router bgp 101- wrong AS number.
* ip load-sharing per-destination- controls CEF hashing but does not enable BGP to install multiple iBGP paths by itself.

NEW QUESTION # 58
An engineer must design a solution to provide safe channels between peer-to-peer devices, ensure that unauthorized users cannot break into the network, and ensure that listening devices on the Internet cannot intercept communication transmitted over the network. What must be used?

• A. IPsec VPN
• B. AWS Direct Connect
• C. Transit VPC for AWS
• D. Segment routing

Answer: A

Explanation:
Comprehensive and Detailed Explanation (Cisco SP Cloud Knowledge)
The requirement describes:
* Secure communication between sites or devices
* Protection from eavesdropping over the Internet
* Cryptographic tunnels
* End-to-end authentication and encryption
This exactly matches the purpose of anIPsec VPN, which provides:
* Encrypted secure tunnels
* Authentication and integrity protection
* Confidentiality even across untrusted networks such as the Internet
Other options do not provide encrypted peer-to-peer channels:
* AWS Direct Connect# private link to AWS, not peer-to-peer encryption
* Segment Routing# traffic engineering, not security
* Transit VPC# routing architecture, not encryption
Thus the correct answer isIPsec VPN.

NEW QUESTION # 59
Direct Connect offers which of the following advantages over traditional internet connections?

• A. More consistent network performance
• B. Higher latency
• C. Increased security
• D. Reduced bandwidth

Answer: A,C

NEW QUESTION # 60
Which of the following are benefits of using streaming telemetry for network assurance? (Select two)

• A. Reduced monitoring capabilities
• B. Improved scalability and flexibility
• C. Increased network latency
• D. Real-time data collection

Answer: B,D

NEW QUESTION # 61
The implementation of SR-IOV in VNF optimization primarily improves:

• A. Data encryption protocols
• B. Physical device management
• C. Manual network troubleshooting efforts
• D. Virtual network function performance

Answer: D

NEW QUESTION # 62
Carrier-neutral facilities enhance cloud connectivity by offering:

• A. Limited scalability options
• B. Multiple connectivity options including Direct Connect and MPLS
• C. Direct access to only one cloud provider
• D. Single-tenant data center operations

Answer: B

NEW QUESTION # 63
A key benefit of data plane high availability in VNF is:

• A. Simplified network design
• B. Increased network congestion
• C. Lower operational costs
• D. Enhanced performance and reliability

Answer: D

NEW QUESTION # 64
An engineer must implement a public cloud solution that enables a company to place all its infrastructureand its end-user applications in the cloud, eliminating the need for software application management and maintenance. Which cloud service model must be used?

• A. FaaS
• B. IaaS
• C. SaaS
• D. PaaS

Answer: C

Explanation:
Comprehensive and Detailed Explanation (Cisco Cloud Model Knowledge)
The requirement states:
* All infrastructure in the cloud
* All applications delivered from the cloud
* No software management
* No maintenance by the customer
This matchesSoftware as a Service (SaaS).
SaaS provides:
* Fully managed applications
* No patching, upkeep, installation, or infrastructure maintenance
* End-to-end cloud delivery
PaaS and IaaS still require some software/application management.
FaaS is event-driven serverless compute, not full application hosting.
Therefore, the correct answer isA. SaaS.

NEW QUESTION # 65
Direct Connect as a WAN infrastructure connectivity option is preferable for scenarios requiring:

• A. Low security and high latency
• B. Minimal bandwidth and maximum costs
• C. Public internet access to cloud resources
• D. High throughput and low latency

Answer: D

NEW QUESTION # 66
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