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NEW QUESTION # 140
Company XYZ is designing the network for IPv6 security and they have these design requirements:
A switch or router must deny access to traffic from sources with addresses that are correct, but are topologically incorrect Devices must block Neighbor Discovery Protocol resolution for destination addresses that are not found in the binding table.
Which two IPv4 security features are recommended for this company? (Choose two)
- A. IPv6 DHCP Guard
- B. IPv6 RA Guard
- C. IPv6 Source Guard
- D. IPv6 Destination Guard
- E. IPv6 Prefix Guard
Answer: D,E
NEW QUESTION # 141
Which two protocols are used bv SDN controllers to communicate with switches and routers? (Choose two )
- A. NetFlow
- B. OpenFlow
- C. OpenFlash
- D. Open vSwitch Database
- E. NetFlash
Answer: B,D
NEW QUESTION # 142
Which two factors must be considered for high availability in campus LAN designs to mitigate concerns about unavailability of network resources? (Choose two.)
- A. network resiliency
- B. network type
- C. device resiliency
- D. device type
- E. network size
Answer: A,C
NEW QUESTION # 143
You are designing a network for a branch office. In order to improve convergence time, you are required to use the BFD feature Which four routing protocols can you use to facilitate this? (Choose four.)
- A. EIGRP
- B. static
- C. RIP
- D. IS-IS
- E. BGP
Answer: A,B,D,E
NEW QUESTION # 144
Refer to the exhibit.
The enterprise customer wants to stream one-way video from their head office to eight branch offices using multicast. Their current service provider provides a Layer3 VPN solution and manages the CE routers, but they do not currently support multicast. Which solution quickly allows this multicast traffic to go through while allowing for future scalability?
- A. The service provider must provide a Draft Rosen solution to enable a GRE tunnel between nodes PE1 and PE2
- B. Implement hub and spoke MPLS VPN over DMVPN (also known as 2547o DMVPN) between CE1 and CE2
- C. Enable a GRE tunnel between nodes C1 and C4
- D. Enable a GRE tunnel between nodes CE1 and CE2
- E. Enable a GRE tunnel between nodes C2 and C4
Answer: E
NEW QUESTION # 145
While designing a switched topology, in which two options is UplinkFast recommended? (Choose two )
- A. when switches of different spanning-tree types are connected (for example. 802.1d connecting to
802.1w) - B. on access layer switches
- C. on the core switches
- D. when hello timers are changed to more aggressive values
- E. on distribution layer switches
Answer: A,B
NEW QUESTION # 146
Company XYZ is planning to deploy primary and secondary (disaster recovery) data center sites. Each of these sites will have redundant SAN fabrics and data protection is expected between the data center sites. The sites are 100 miles (160 km) apart and target RPO/RTO are 3 hrs and 24 hrs, respectively. Which two considerations must Company XYZ bear in mind when deploying replication in their scenario? (Choose two.)
- A. Target RPO/RTO requirements cannot be met due to the one-way delay introduced by the distance between sites.
- B. Synchronous data replication must be used to meet the business requirements
- C. VSANs must be routed between sites to isolate fault domains and increase overall availability.
- D. Asynchronous data replication should be used in this scenario to avoid performance impact in the primary site.
- E. VSANs must be extended from the primary to the secondary site to improve performance and availability.
Answer: C,D
NEW QUESTION # 147
Agile and Waterfall are two popular methods for organizing projects. What describes any Agile network design development process?
- A. working design over comprehensive documentation
- B. processes and tools over individuals and interactions over time
- C. following a plan over responding to change
- D. contract negotiation over customer collaboration
Answer: A
NEW QUESTION # 148
You are designing a large-scale DMVPN network with more than 500 spokes using EIGRP as the IGP protocol Which design option eliminates potential tunnel down events on the spoke routers due to the holding time expiration?
- A. Apply QoS for pak_priority class
- B. Increase the hold queue on the physical interface of the spoke routers.
- C. Increase the hold queue on the tunnel interface of the spoke routers
- D. Increase the hold queue on the physical interface of the hub router.
- E. Increase the hold queue on the tunnel interface of the hub router
Answer: E
NEW QUESTION # 149
What are two common approaches to analyzing and designing networks? (Choose two.)
- A. left-right approach
- B. three-tier approach
- C. bottom-up approach
- D. top-down approach
- E. high-low security approach
Answer: C,D
NEW QUESTION # 150
A financial company requires that a custom TCP-based stock-trading application be prioritized over all other traffic for the business due to the associated revenue. The company also requires that VoIP be prioritized for manual trades. Which directive should be followed when a QoS strategy is developed for the business?
- A. Interleave the custom application with other TCP applications in the same CBWR
- B. Allow VoIP and the custom application to share the same priority queue,
- C. Avoid placing the custom application in a CBWFQ queue that contains other
- D. The custom application and VoIP must be assigned their own separate priority queue.
Answer: A
NEW QUESTION # 151
How many fully established neighbour relationships exist on an Ethernet with five routers running OSPF as network type broadcast?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: D
NEW QUESTION # 152
What is the most important operational driver in building a resilient and secure modular network design?
- A. Reduce the frequency of failures requiring human intervention
- B. Minimize app downtime
- C. Dependencies on hardware or software that is difficult to scale
- D. Increase time spent on developing new features
Answer: A
NEW QUESTION # 153
Which architecture does not require an explicit multicast signaling protocol, such as PIM or P2MP, to signal the multicast state hop-by-hop, but instead uses a link state protocol to advertise the multicast forwarding state?
- A. Bi-directional implicit replication
- B. Binary intermediate enhanced routing
- C. Bit indexed explicit replication
- D. Binary indexed explicit routing
Answer: C
NEW QUESTION # 154
Which three tools are used for ongoing monitoring and maintenance of a voice and video environment?
(Choose three.)
- A. active monitoring via synthetic probes to measure loss, latency, and jitter
- B. call management analysis to identify network convergence-related failures
- C. call management analysis to identify CAC failures and call quality issues
- D. flow-based analysis to measure bandwidth mix of applications and their flows
- E. flow-based analysis with PTP time-stamping to measure loss, latency, and jitter
- F. passive monitoring via synthetic probes to measure loss, latency, and jitter
Answer: A,C,D
NEW QUESTION # 155
Refer to the exhibit.
An engineer has been asked to redesign the traffic flow toward AS 111 coming from AS 500.Traffic destined to AS 111 network 91 7 0.0/16 should come in via AS 100. while traffic destined to all other networks in AS
111 should continue to use the existing path Which BGP attributes are best suited to control this inbound traffic coming from BGP AS 500 Into the 91.7.0.0/16 network?
- A. Prepend AS path for the 91.7.0.0/16 network and set it for neighbor in AS 200.
- B. Use local preference on R1 for the networks that AS 500 advertises to AS 111.
- C. Use extended community for the 91.7.0.0/16 network, not advertising it to the bi-lateral peer.
- D. Set higher MED for neighbor in AS 100 to influence incoming traffic for the 91. 7.0.0/16 network.
Answer: A
NEW QUESTION # 156
What is the most important operational driver in building a resilient and secure modular network design?
- A. Reduce the frequency of failures requiring human intervention
- B. Minimize app downtime
- C. Dependencies on hardware or software that is difficult to scale
- D. Increase time spent on developing new features
Answer: B
NEW QUESTION # 157
Company XYZ has a multicast domain that spans across multiple autonomous systems. The company wants to choose a technology that provides simplified and controlled approach to interconnecting the multicast domains. Which technology is the best fit for this purpose?
- A. MPLS
- B. PIM SSM
- C. MSDP
- D. PIM sparse mode
Answer: C
NEW QUESTION # 158
As network designer, which option is your main concern with regards to virtualizing multiple network zones into a single hardware device?
- A. Fate sharing
- B. Congestion control
- C. Bandwidth allocation
- D. CPU resource allocation
- E. Security
Answer: A
NEW QUESTION # 159
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