A Review Of Virtual 400-007 Free Practice Test

NEW QUESTION 1
Company XYZ network runs IPv4 and IPv6 and they want to Introduce a multidomain, multicastbased network.
The new design should use a flavor of PIM that forwards traffic using SPT.
Which technology meets this requirement?

• A. PIM-DM
• B. PIM-SM
• C. PIM-SSM
• D. BIDIR-PIM

Answer: C

NEW QUESTION 2
Which three elements help network designers to construct secure systems that protect information and resources (such as devices, communication, and data) from unauthorized access, modification, inspection, or destruction? (Choose three.)

• A. confidential
• B. serviceability
• C. reliability
• D. availability
• E. integrity
• F. scalability

Answer: ADE

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
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 5
The Company XYZ network is experiencing attacks against their router.
Which type of Control Plane Protection must be used on the router to protect all control plane IP traffic that is destined directly for one of the router interfaces?

• A. Control Plane Protection host subinterface
• B. Control Plane Protection main interface
• C. Control Plane Protection transit subinterface
• D. Control Plane Protection CEF-exception subinterface

Answer: A

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
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
Which two aspects are considered when designing a dual hub dual DMVPN cloud topology? (Choose two )

• A. will only work with single-tier headend architecture
• B. hub sites must connect to both DMVPN clouds
• C. recommended for high availability
• D. spoke-to-spoke traffic will transit the hub unless spokes exchange dynamic routing directly
• E. requires all sites to have dual Internet connections

Answer: AC

NEW QUESTION 9
What best describes the difference between Automation and Orchestration?

• A. Automation refers to an automatic process for completing a single task and Orchestration refersto assembling and coordinating a set of tasks and conditions.
• B. Automation describes a hands-off configuration process while Orchestration refers to sets ofautomation tasks that require the network administrator to coordinate
• C. Automation refers to an automatic process for completing multiple tasks with conditions andOrchestration refers to executing tasks in parallel.
• D. Automation refers to scripting languages (Pytho
• E. Ansible etc.) and Orchestration refers tocommercial products that control configuration deployment

Answer: A

NEW QUESTION 10
Retef to the exhibit. This network is running OSPF and EIGRP as the routing protocols. Mutual redistribution of the routing protocols has been contoured on the appropriate ASBRs. The OSPF network must be designed so that flapping routes in EIGRP domains do not affect the SPF runs within OSPF. The design solution must not affect the way EIGRP routes are propagated into the EIGRP domains.
Which technique accomplishes the requirement?

• A. route summarization the ASBR interfaces facing the OSPF domain
• B. route summarization on the appropriate ASBRS.
• C. route summarization on the appropriate ABRS.
• D. route summarization on EIDRP routers connecting toward the ASBR

Answer: B

NEW QUESTION 11
You are tasked with the design of a high available network. Which two features provide fail closed environments? (Choose two.)

• A. EIGRP
• B. RPVST+
• C. MST
• D. L2MP

Answer: AB

NEW QUESTION 12
Drag and Drop Question
Drag and drop the FCAPS network management reference models from the left onto the correct definitions on the right.

• A. Yes
• B. Not Mastered

Answer: A

NEW QUESTION 13
Drag and Drop Question
Drag and drop the end-to-end network virtualization elements from the left onto the correct network areas on the right.

• A. Yes
• B. Not Mastered

Answer: A

NEW QUESTION 14
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 15
Company XYZ needs advice in redesigning their legacy Layer 2 infrastructure.
Which technology should be included in the design to minimize or avoid convergence delays due to STP or FHRP and provide a loop-free topology?

• A. Use switch clustering in the access layer.
• B. Use switch clustering in the core/distribution layer.
• C. Use spanning-tree PortFast.
• D. Use BFD.

Answer: B

NEW QUESTION 16
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 17
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 18
While reviewing an existing network design, you are discussing the characteristics of different STP versions.
Which protocol minimizes unicast flooding during a Topology Change Notification in a Layer 2 switched network with many VLANs?

• A. PVRSTP
• B. MST
• C. STP
• D. PVSTP+

Answer: A

NEW QUESTION 19
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