Approved 300-420 Certified Information Systems Security Professional Exam Questions

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Cisco 300-420 Exam Topics:

Section	Weight	Objectives
WAN for Enterprise Networks	20%	-Compare WAN connectivity options Layer 2 VPN MPLS Layer 3 VPN Metro Ethernet DWDM 4G/5G SD-WAN customer edge -Design site-to-site VPN Dynamic Multipoint VPN (DMVPN) Layer 2 VPN MPLS Layer 3 VPN IPsec Generic Routing Encapsulation (GRE) Group Encrypted Transport VPN (GET VPN) -Design high availability for enterprise WAN Single-homed Multihomed Backup connectivity Failover -Describe Cisco SD-WAN Architecture (orchestration plane, management plane, control plane, data plane, on-boarding and provisioning, security) -Describe Cisco SD-WAN design considerations (control plane design, overlay design, LAN design, high availability, redundancy, scalability, security design, QoS and multicast over SD-WAN fabric)
Advanced Addressing and Routing Solutions	25%	-Create structured addressing plans for IPv4 and IPv6 -Create stable, secure, and scalable routing designs for IS-IS -Create stable, secure, and scalable routing designs for EIGRP -Create stable, secure, and scalable routing designs for OSPF -Create stable, secure, and scalable routing designs for BGP Address families Basic route filtering Attributes for path preference Route reflectors Load sharing -Determine IPv6 migration strategies Overlay (tunneling) Native (dual-stacking) Boundaries (IPv4/IPv6 translations)
Automation	10%	- Choose the correct YANG data model set based on requirements -Differentiate between IETF, Openconfig, and Cisco native YANG models -Differentiate between NETCONF and RESTCONF -Describe the impact of model-driven telemetry on the network Periodic publication On-change publication -Compare dial-in and dial-out approaches to model-driven telemetry
Advanced Enterprise Campus Networks	25%	- Design campus networks for high availability First Hop Redundancy Protocols Platform abstraction techniques Graceful restart BFD -Design campus Layer 2 infrastructures STP scalability Fast convergence Loop-free technologies PoE and WoL -Design multicampus Layer 3 infrastructures Convergence Load sharing Route summarization Route filtering VRFs Optimal topologies Redistribution -Describe SD-Access Architecture (underlay, overlay, control and data plane, automation, wireless, and security) -Describe SD-Access fabric design considerations for wired and wireless access (overlay, fabric design, control plan design, border design, segmentation, virtual networks, scalability, over the top and fabric for wireless, multicast)

Cisco 300-420 Exam covers a wide range of topics related to designing Cisco Enterprise Networks. Some of the topics that are covered include advanced routing and switching technologies, network automation, network security, network services, and network design principles. 300-420 exam is designed to test your ability to apply these concepts to real-world scenarios and to design and implement solutions that meet the needs of modern businesses.

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Cisco Designing Cisco Enterprise Networks Sample Questions (Q123-Q128):

NEW QUESTION # 123

Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect optimizes the network to reduce the impact when a link fails. Which solution should the architect include in the design?

A. Reduce the default EIGRP hello interval and hold time.
B. Run BFD on the inter links between EIGRP neighbors.
C. Summarize the access layer networks from each access layer switch toward the aggregation layer.
D. Summarize the access layer networks from the aggregation layer toward the core layer.

Answer: B

NEW QUESTION # 124
Which three basic types of SD-WAN deployments are out on the market? (Choose three.)

A. MPLS-based
B. internet-based SD-WAN
C. managed service SD-WAN
D. SD-WAN as-a-Service
E. policy-based SD-WAN
F. secure SD-WAN service

Answer: B,C,D

NEW QUESTION # 125
What should you do If you are looking at a strategic win with a customer and the customer wants to examine Cisco ISE for longer than a few weeks?

A. Point them to our dCloud demo library
B. Provide them with a downloadable POV kit
C. Give them some of our flash files that can be played on any browser
D. Set them up with a dCloud account
E. Set them up with an account on a Cisco UCS server that hosts ISE
F. Give them our ISE YouTube videos

Answer: B

NEW QUESTION # 126
A network solution is being designed for a company that connects to multiple Internet service providers.
Which
Cisco proprietary BGP path attribute will influence outbound traffic flow?

A. MED
B. Community
C. Weight
D. AS Path
E. Local Preference

Answer: C

NEW QUESTION # 127
Which protocol is the Cisco SD-Access data plane based on?

A. OMP
B. VXLAN
C. NHRP
D. LISP

Answer: B

Explanation:
The Cisco SD-Access data plane is based on VXLAN. Cisco SD-Access separates the fabric into functional planes: the underlay provides IP reachability, the control plane uses LISP to map endpoints to locations, and the data plane uses VXLAN encapsulation to carry user traffic across the routed underlay. VXLAN allows the fabric edge node to encapsulate endpoint traffic and forward it through the fabric while preserving virtual network and segmentation information. This is what enables SD-Access to provide Layer 2 and Layer 3 overlay services over a Layer 3 routed transport. OMP is the control-plane protocol for Cisco SD-WAN, not SD-Access. NHRP is associated with DMVPN tunnel resolution. LISP is essential in SD-Access, but its role is endpoint ID to routing locator mapping, not packet encapsulation in the data plane. Therefore, VXLAN is the correct protocol for the SD-Access data plane. Reference topics: SD-Access fabric, VXLAN data plane, LISP control plane, overlay encapsulation, routed underlay.

NEW QUESTION # 128
......

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