All About Refined 400-007 Actual Test

NEW QUESTION 1
Which two control plane policer designs must be considered to achieve high availability? (Choose
two.)

• A. Control plane policers are enforced in hardware to protect the software path, but they arehardware platform dependent in terms of classification ability.
• B. Control plane policers are really needed only on externally facing devices.
• C. Control plane policers can cause the network management systems to create false alarms.
• D. Control plane policers must be processed before a forwarding decision is made.
• E. Control plane policers require that adequate protocols overhead are factored in to allow protocolconvergence.

Answer: AD

NEW QUESTION 2
SD-WAN can be used to provide secure connectivity to remote offices, branch offices, campus networks, data centers, and the cloud over any type of IP-based underlay transport network. Which two statements describe SD WAN solutions? (Choose two.)

• A. SD-WAN networks are inherently protected against slow performance.
• B. Control and data forwarding planes are kept separate.
• C. Improved operational efficiencies result In cost savings.
• D. Solutions include centralized orchestration, control, and zero-touch provisioning.
• E. Solutions allow for variations of commodity and specialized switching hardware.

Answer: BD

NEW QUESTION 3
Refer to the exhibit.

An engineer is designing the network for a multihomed customer running in AS 111 does not have any other Ass connected to it.
Which technology is more comprehensive to use in the design to make sure that the AS is not being used as a transit AS?

• A. Configure the AS-set attribute to allow only routes from AS 111 to be propagated to the neighborASs.
• B. Use the local preference attribute to configure your AS as a non-transit'' AS.
• C. include an AS path access list to send routes to the neighboring ASs that only have AS 111 in theAS path field.
• D. Include a prefix list to only receive routes from neighboring ASs.

Answer: C

NEW QUESTION 4
When designing a WAN that will be carrying real-time traffic, what are two important reasons to consider serialization delay? (Choose two )

• A. Serialization delays are invariable because they depend only on the line rate of the interface
• B. Serialization delays are variable because they depend on the line rate of the interface and on thetype of the packet being serialized.
• C. Serialization delay is the time required to transmit the packet on the physical media.
• D. Serialization delays are variable because they depend only on the size of the packet beingserialized
• E. Serialization delay depends not only on the line rate of the interface but also on the size of thepacket

Answer: BD

NEW QUESTION 5
Your network operations team is deploying Access Control Lists (ACLs) across your Internet gateways.
They wish to place an ACL inbound on the Internet gateway interface facing the core network (the "trusted" interface).
Which IP address would the ACL need for traffic sourced from the inside interface, to match the source address of the traffic?

• A. inside global
• B. outside global
• C. inside local
• D. outside local

Answer: C

NEW QUESTION 6
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 7
You want to mitigate failures that are caused by STP loops that occur before UDLD detects the failure
or that are caused by a device that is no longer sending BPDUs. Which mechanism do you use along
with UDLD?

• A. Root guard
• B. BPDU guard
• C. Loop guard
• D. BPDU filtering

Answer: C

NEW QUESTION 8
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 9
Which two characteristics apply to firewall transparent mode operations in a firewall solution design? (Choose two.)

• A. Changes in the existing IP addressing and subnets are required
• B. The firewall can participate actively on spanning tree.
• C. Multicast traffic can traverse the firewall.
• D. OSPF adjacencies can be established through the firewall
• E. The firewall acts like a router hop in the network.

Answer: CD

NEW QUESTION 10
Which two conditions must be met for EIGRP to maintain an alternate loop-free path to a remote network? (Choose two.)

• A. The Reported Distance from a successor is lower than the local Feasible Distance.
• B. The Reported Distance from a successor is higher than the local Feasible Distance.
• C. The feasibility condition does not need to be met.
• D. The Feasible Distance from a successor is lower than the local Reported Distance.
• E. A feasible successor must be present.

Answer: AE

NEW QUESTION 11
Which two features control multicast traffic in a VLAN environment? (Choose two)

• A. IGMP snooping
• B. MLD snooping
• C. RGMP
• D. PIM snooping
• E. pruning

Answer: AB

NEW QUESTION 12
Company ABC wants to minimize the risk of users plugging unauthorized switches and hubs into the network.
Which two features can be used on the LAN access ports to support this design requirement? (Choose two.)

• A. Loop Guard
• B. PortFast
• C. DTF
• D. Root Guard
• E. BPDU Guard

Answer: BE

NEW QUESTION 13
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 14
An architect designs a multi-controller network architecture with these requirements:
- Achieve fast failover to control traffic when controllers fail.
- Yield a short distance and high resiliency in the connection between the switches and the controller.
- Reduce connectivity loss and enable smart recovery to improve the SDN survivability.
- Improve connectivity by adding path diversity and capacity awareness for controllers.
Which control plane component of the multi-controller must be built to meet the requirements?

• A. control node reliability
• B. controller stale consistency
• C. control path reliability
• D. controller clustering

Answer: B

NEW QUESTION 15
Company XYZ is running OSPF in their network. They have merged with another company that is running EIGRP as the routing protocol. Company XYZ now needs the two domains to talk to each other with redundancy, while maintaining a loop free environment.
The solution must scale when new networks are added into the network in the near future.
Which technology can be used to meet these requirements?

• A. multipoint route-redistribution with route filtering using ACLs
• B. DUMP multipoint route-redistribution with route filtering using route tags
• C. DUMPS single point route-redistribution with route filtering using route tags
• D. DUMPS single point route-redistribution with route filtering using ACLs

Answer: B

NEW QUESTION 16
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