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2023年最新のな厳密検証された合格させる400-007試験にはリアル問題と解答
Cisco 400-007 認定試験の出題範囲：
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質問 86
Which parameter is the most important factor to consider when deciding service placement in a cloud solution?
- A. security framework Implementation time
- B. data replication cost
- C. application structure
- D. data confidentiality rules
正解: D
質問 87
Which feature is supported by NETCONF but is not supported by SNMP?
- A. collecting the status of specific fields
- B. distinguishing between configuration data and operational data
- C. taking administrative actions
- D. changing the configuration of specific fields
正解: B
質問 88
Which two foundational aspects of loT are still evolving and being worked on by the industry at large? (Choose two)
- A. loT consortia
- B. Standards
- C. WiFi protocols
- D. Low energy Bluetooth sensors
- E. Regulatory domains
正解: C,D
質問 89
What advantage of placing the IS-IS layer 2 flooding domain boundary at the core Layer in a three-layer hierarchical network is true?
- A. The Layer 1 and Layer 2 domains can easily overlap
- B. The Layer 2 domain is contained and more stable
- C. It reduces the complexity of the Layer 1 domains
- D. It can be applied to any kind of topology
正解: B
質問 90
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. outside global
- B. inside local
- C. inside global
- D. outside local
正解: B
質問 91
A healthcare customer requested that SNMP traps must be sent over the MPLS Layer 3 VPN service. Which protocol must be enabled?
- A. Syslog
- B. SNMPv2
- C. SSH
- D. SNMPv3
- E. Syslog TLS
正解: D
質問 92
What is a description of a control plane action?
- A. hosts locating routers that reside on attached links using the IPv6 Neighbor Discover Protocol
- B. matching the destination MAC address of an Ethernet frame to the MAC address table
- C. de-encapsulating and re-encapsulating a packet in a data-link frame
- D. matching the destination IP address of an IP packet to the IP routing table
正解: A
質問 93
How can EIGRP topologies be designed to converge as fast as possible in the event of a point-to-point link failure?
- A. Limit the query domain by use of default routes.
- B. Build neighbor adjacencies in a triangulated fashion.
- C. Limit the query domain by use of distribute lists.
- D. Limit the query domain by use of summarization.
- E. Build neighbor adjacencies in squared fashion.
正解: D
質問 94
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 switched give that no RPF check is performed
- B. It is switched due to a successful RPF check against the routing table
- C. It is dropped due to an unsuccessful RPk8t8ck against the multicast receiver.
- D. It is dropped due to an unsuccessful RPF check against the multicast source
正解: B
質問 95
IPFIX data collection via standalone IPFIX probes is an alternative to flow collection from routers and switches. Which use case is suitable for using IPFIX probes?\
- A. observation of critical links
- B. security
- C. performance monitoring
- D. capacity planning
正解: C
質問 96
Which two points must network designers consider when designing a new network design or when evaluating an existing network design to help them understand the high-level design direction with regards to the security aspects? (Choose two)
- A. Consider for only new network technologies and components
- B. Consider Business objectives and goals
- C. Consider organization's security policy standards
- D. Consider for only multi-site networks
正解: B,C
質問 97
A key to maintaining a highly available network is building in the appropriate redundancy to protect against failure. This redundancy is carefully balanced with the inherent complexity of redundant systems. Which design consideration is relevant for enterprise WAN use cases when it comes to resiliency?
- A. Design automation tools wherever it is appropriate for greater visibility
- B. Design in a way that expects outages and attacks on the network and its protected resources
- C. Design in a way that it simplifies and improves ease of deployment
- D. The design approach should consider simple and centralized management aspect
正解: B
質問 98
Refer to the exhibit.
OSPF is running as the IGP to provide reachability to all AS100 networks R3 and R4 are the current ABRs at the boundary of OSPF Area0 and Areal Now BGP must be deployed within AS 100 because it will be receiving Internet routes from its eBGP peers (the service provider) connected to R1 and R2 What is an optimal solution for this deployment to configure BGP relationships and redistribute BGP learned routes into OSPF?
- A. A full mesh should be deployed between all the routers with mutual redistribution to take place at R1 and R2.
- B. R1, R2, R3 and R4 must be set up with a neighbor relationship with R5 only must not be a route reflector.
- C. Configuration should be set up with R1 and R2, and R3 in one sub AS, with and R4 in another, and redistribution at R1 and R2.
- D. R5 should be configured as a route reflector for R1, R2, R3 and R4. BGP routes must be redistributed at R1 and R2 into OSPF.
正解: A
質問 99
While designing a switched topology, in which two options is UplinkFast recommended? (Choose two )
- A. on the core switches
- B. when hello timers are changed to more aggressive values
- C. on distribution layer switches
- D. on access layer switches
- E. when switches of different spanning-tree types are connected (for example. 802.1d connecting to
802.1w)
正解: D,E
質問 100
Which two control plane policer designs must be considered to achieve high availability? (Choose two.)
- A. Control plane policers must be processed before a forwarding decision is made.
- B. Control plane policers require that adequate protocols overhead are factored in to allow protocol convergence.
- C. Control plane policers are enforced in hardware to protect the software path, but they are hardware platform dependent in terms of classification ability.
- D. Control plane policers can cause the network management systems to create false alarms.
- E. Control plane policers are really needed only on externally facing devices.
正解: A,C
質問 101
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. Enable lower data link layer recovery systems to have an opportunity to restore the interface
- C. Reduce the time for the network to reconverge.
- D. Increase the notification of interface flaps.
正解: B,C
質問 102
Drag and drop the design use cases from the left onto the correct uRPF techniques used to prevent spoofing attacks Not all options are used.
正解:
解説:
質問 103
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. Enable a GRE tunnel between nodes C1 and C4
- C. Enable a GRE tunnel between nodes C2 and C4
- D. Enable a GRE tunnel between nodes CE1 and CE2
- E. Implement hub and spoke MPLS VPN over DMVPN (also known as 2547o DMVPN) between CE1 and CE2
正解: C
質問 104
Sometimes SDN leverages various overlay networking technologies to create layer(s) of network abstraction. What describes an overlay network?
- A. It encapsulates packets at source and destination, which incurs additional overhead
- B. It transmits packets that traverse over network devices like switches and routers
- C. Packet delivery and reliability occurs at Layer 3 and Layer 4
- D. It is responsible for the delivery of packets; NAT- or VRF-based segregation is required
正解: A
質問 105
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