All About Real 400-007 Exam Question

NEW QUESTION 1
Which two foundational aspects of loT are still evolving and being worked on by the industry at large? (Choose two)

• A. WiFi protocols
• B. Regulatory domains
• C. Low energy Bluetooth sensors
• D. loT consortia
• E. Standards

Answer: AC

NEW QUESTION 2
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 3
A multicast network is sing Bidirectional PIM. Which two combined actions achieve high availability
so that two RPs within the same network can act in a redundant manner? (Choose two)

• A. Use two phantom RP addresses
• B. Manipulate the administration distance of the unicast routes to the two RPs
• C. Manipulate the multicast routing table by creating static mroutes to the two RPs
• D. Advertise the two RP addresses in the routing protocol
• E. Use anycast RP based on MSDP peering between the two RPs
• F. Control routing to the two RPs through a longest match prefix

Answer: AF

NEW QUESTION 4
Which two impacts of adding the IP event dampening feature to a network design are true?
(Choose two.)

• A. It protects against routing loops.
• B. It switches traffic immediately after a link failure.
• C. lt speeds up link failure detection.
• D. It reduces the utilization of system processing resources.
• E. It improves overall network stability.

Answer: DE

NEW QUESTION 5
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 6
You were tasked to enhance the security of a network with these characteristics:
- A pool of servers is accessed by numerous data centers and remote sites
- The servers are accessed via a cluster of firewalls
- The firewalls are configured properly and are not dropping traffic
- The firewalls occasionally cause asymmetric routing of traffic within the server data center.
Which technology should you recommend to enhance security by limiting traffic that could originate from a hacker compromising a workstation and redirecting flows at the servers?

• A. Poison certain subnets by adding static routes to Null0 on the core switches connected to thepool of servers.
• B. Deploy uRPF strict mode.
• C. Limit sources of traffic that exit the server-facing interface of the firewall cluster with ACLs.
• D. Deploy uRPF loose mode

Answer: C

NEW QUESTION 7
A European national bank considers migrating its on-premises systems to a private cloud offering in a non-European location to significantly reduce IT costs.
What is a primary factor prior to migration?

• A. data governance
• B. additional latency
• C. security
• D. cloud connectivity

Answer: A

NEW QUESTION 8
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 9
Which protocol does an SD-Access wireless Access Point use for its fabric data plane?

• A. GRE
• B. MPLS
• C. VXLAN
• D. LISP
• E. CAPWAP

Answer: C

NEW QUESTION 10
Which undesired effect of increasing the jitter compensation buffer is true?

• A. The overall transport jitter decreases and quality improves.
• B. The overall transport jitter increases and quality issues can occur.
• C. The overall transport delay increases and quality issues can occur.
• D. The overall transport delay decreases and quality improves.

Answer: C

NEW QUESTION 11
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 12
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 13
What are two key design principles when using a hierarchical core-distribution-access network model? (Choose two )

• A. A hierarchical network design model aids fault isolation
• B. The core layer is designed first, followed by the distribution layer and then the access layer
• C. The core layer provides server access in a small campus.
• D. A hierarchical network design facilitates changes
• E. The core layer controls access to resources for security

Answer: AD

NEW QUESTION 14
Company A has a hub-and spoke topology over an SP-managed infrastructure. To measure traffic performance metrics. IP SLA senders on all spoke CE routers and an IP SLA responder on the hub CE router.
What must they monitor to have visibility on the potential performance impact due to the constantly increasing number of spoke sites?

• A. memory usage on the hub router
• B. interface buffers on the hub and spoke routers
• C. CPU and memory usage on the spoke routers
• D. CPU usage on the hub router

Answer: D

NEW QUESTION 15
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 16
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 17
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 18
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