All About High Quality 400-007 Dump

NEW QUESTION 1
Refer to the exhibit.

As part of a redesign project, you must predict multicast behavior.
What happens to the multicast traffic received on the shared tree (*,G), if it is received on the LHR interface indicated*?

• A. It is dropped due to an unsuccessful RPF check against the multicast source
• B. It is switched give that no RPF check is performed
• C. It is switched due to a successful RPF check against the routing table
• D. It is dropped due to an unsuccessful RPk8t8ck against the multicast receiver.

Answer: C

NEW QUESTION 2
A Service Provider is designing a solution for a managed CE service to a number of local customers using a single CE platform and wants to have logical separation on the CE platform using Virtual Routing and Forwarding (VRF) based on IP address ranges or packet length.
Which is the most scalable solution to provide this type of VRF Selection process on the CE edge device?

• A. Static Routes for Route Leaking
• B. Policy Based Routing
• C. OSPF per VRF Instance
• D. Multi-Protocol BGP

Answer: B

NEW QUESTION 3
Drag and Drop Question
Drag and drop the multicast protocols from the left onto the current design situation on the right.

• A. Yes
• B. Not Mastered

Answer: A

NEW QUESTION 4
Your company wants to deploy a new data center infrastructure.
Based on the requirements you have chosen VXLAN as encapsulation technology.
The customer is concerned about miss-configuration of Layer 2 devices and DC wide outages caused by Layer 2 loops.
What do you answer?

• A. VXLAN offers native loop avoidance mechanism
• B. Storm Control should be enabled on all ports
• C. VPC+ could prevent L2 loop on access ports
• D. BPDU Guard should be enabled on all VTEP access ports

Answer: D

NEW QUESTION 5
According to the CIA triad principles for network security design, which principle should be priority for a Zero Trust network?

• A. requirement for data-in-motion encryption and 2FA authentication
• B. requirement for data-at-rest encryption foe user identification within the VPN terminationhardware
• C. categorization of systems, data, and enterprise BYOD assets that are connected to networkzones based on individual privacy needs
• D. ensuring that authorized users have high-availability system access from defined zones todefined systems or zones

Answer: A

NEW QUESTION 6
You are designing a new Ethernet-based metro-area network for an enterprise customer to connect 50 sites within the same city OSPF will be the routing protocol used. The customer is primarily concerned with IPv4 address conservation and convergence time.
Which two combined actions do you recommend? (Choose two)

• A. Use a multipoint Metro-E service for router connections
• B. Use a single address per router for all P2P links
• C. Use P2P links between routers in a hub-and-spoke design
• D. Configure address aggregation at each site router
• E. Determine which OSPF routers will be DR/BDR

Answer: AC

NEW QUESTION 7
A network design includes a long signaling delay in notifying the Layer 3 control plane that an interface has failed.
Which two of these actions would reduce that delay? (Choose two.)

• A. Increase network stability.
• B. Reduce the time for the network to reconverge.
• C. Increase the notification of interface flaps.
• D. Enable lower data link layer recovery systems to have an opportunity to restore the interface

Answer: BD

NEW QUESTION 8
Company XYZ has a new network based on IPv6. Some of the subnets that they are planning to use will be confidential and need an addressing scheme that confines them to the local campus network.
Which type of IPv6 addresses can be used for these networks in the IPv6 addressing design?

• A. local addresses
• B. private addresses
• C. link-local addresses
• D. unique local addresses

Answer: D

NEW QUESTION 9
A BGP route reflector in the network is taking longer than expected to coverage during large network changes.
Troubleshooting shows that the router cannot handle all the TCP acknowledgements during route updates.
Which action can be performed to tune the device performance?

• A. Increase the size of the hold queue.
• B. Increase the size of the large buffers.
• C. Decrease the size of the small buffers.
• D. Increase the keepalive timers for each BGP neighbor.

Answer: A

NEW QUESTION 10
How many fully established neighbour relationships exist on an Ethernet with five routers running OSPF as network
type broadcast?

• A. 5
• B. 6
• C. 7
• D. 10
• E. 20

Answer: C

NEW QUESTION 11
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 Source Guard
• C. IPv6 Destination Guard
• D. IPv6 Prefix Guard
• E. IPv6 RA Guard

Answer: CD

NEW QUESTION 12
Which two advantages of using DWDM over traditional optical networks are true? (Choose two.)

• A. inherent topology flexibility and service protection provided without penalty through intelligent oversubscription of bandwidth reservation
• B. ability to expand bandwidth over existing optical Infrastructure
• C. inherent topology flexibility with built-in service protection
• D. inherent topology flexibility with intelligent chromatic dispersion
• E. inherent topology flexibility with a service protection provided through a direct integration with an upper layer protocol

Answer: BC

NEW QUESTION 13
Refer to the exhibit. AJI links are P2P Layer 3. A high availability application is synchronizing data between host A and host B.

To increase chance of delivery the same data is sent twice from host A on two different NICs toward the two NICs on host B.
Which solution must be deployed in the network to ensure that any failure in the network does not trigger data loss on host B?

• A. EIGRP with feasible successors
• B. BFD
• C. IP Fast Reroute
• D. Static routes

Answer: C

NEW QUESTION 14
A senior network designer suggests that you should improve network convergence times by reducing BGP timers between your CE router and the PE router of the service provider.
Which two factors should you consider to adjust the timer values? (Choose two.)

• A. service provider agreement to support tuned timers
• B. manual updates to the peer groups
• C. service provider scheduling of changes to the PE
• D. number of routes on the CE router
• E. number of VRFs on the PE router

Answer: AD

NEW QUESTION 15
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. Enable a GRE tunnel between nodes CE1 and CE2
• B. Enable a GRE tunnel between nodes C2 and C4
• C. Enable a GRE tunnel between nodes C1 and C4
• D. Implement hub and spoke MPLS VPN over DMVPN (also known as 2547o DMVPN) between CE1and CE2
• E. The service provider must provide a Draft Rosen solution to enable a GRE tunnel between nodesPE1 and PE2

Answer: B

NEW QUESTION 16
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