2025 Realistic 400-007 100% Pass Guaranteed Download Exam Q&A [Q191-Q207]

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2025 Realistic 400-007 100% Pass Guaranteed Download Exam Q&A

Accurate 400-007 Answers 365 Days Free Updates

NO.191 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?

Design in a way that expects outages and attacks on the network and its protected resources

The design approach should consider simple and centralized management aspect

Design in a way that it simplifies and improves ease of deployment

Design automation tools wherever it is appropriate for greater visibility

NO.192 Refer to the exhibit.

Your company designed a network to allow server VLANs to span all access switches in a data center In the design, Layer 3 VLAN interfaces and HSRP are configured on the aggregation switches Which two features improve STP stability within the network design? (Choose two.)

BPDU guard on access ports

BPDU guard on the aggregation switch downlinks toward access switches

root guard on the aggregation switch downlinks toward access switches

root guard on access ports

edge port on access ports

access switch pairs explicitly determined to be root and backup root bridges

NO.193 You are a network designer and you must ensure that the network you design is secure. How do you plan to prevent infected devices on your network from sourcing random DDoS attacks using forged source address?

ACL based forwarding

unicast RPF loose mode

unicast RPF strict mode

ACL filtering by destination

NO.194 Refer to the exhibit.

An engineer is designing the traffic flow for AS 111. Traffic from AS 111 should be preferred via AS 100 for all external routes. A method must be used that only affects AS 111. Which BGP attributes are best suited to control outbound traffic?

community

MED

local preference

As path

NO.195 An engineer is designing the QoS strategy for Company XYZ. Based on initial analysis, a lot of scavenger type of traffic is traversing the network’s 20Mb Internet link toward the service provider. The new design must use a QoS technique that limits scavenger traffic to 2 Mbps, which helps avoid oversubscription of the link during times of congestion. Which QoS technique can be used to facilitate this requirement?

class-based traffic policing

LLQ

CBWFQ

class-based traffic shaping

NO.196 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.

NO.197 Drag and drop the characteristics from the left onto the corresponding network management options on the right.

NO.198 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)

Use two phantom RP addresses

Manipulate the administration distance of the unicast routes to the two RPs

Manipulate the multicast routing table by creating static mroutes to the two RPs

Advertise the two RP addresses in the routing protocol

Use anycast RP based on MSDP peering between the two RPs

Control routing to the two RPs through a longest match prefix

NO.199 A customer migrates from a traditional Layer 2 data center network into a new SDN-based spine-and-leaf VXLAN EVPN data center within the same location The networks are joined to enable host migration at Layer 2 What is the final migration step after hosts have physically migrated to have traffic flowing through the new network without changing any host configuration?

Shut down legacy Layer 3 SVIs. clear ARP caches on all hosts being migrated and then configure the legacy VRRP address onto new VXLAN core switches

Increase VRRP priorities on new infrastructure over legacy VRRP values, then shut down legacy SVIs

Shut down legacy infrastructure to allow VXLAN gateways to become active

Shut down legacy Layer 3 SVIs and activate new preconfigured Layer 3 SVIs on VXLAN

NO.200 Which two advantages of using DWDM over traditional optical networks are true? (Choose two.)

inherent topology flexibility and service protection provided without penalty through intelligent oversubscription of bandwidth reservation

ability to expand bandwidth over existing optical Infrastructure

inherent topology flexibility with built-in service protection

inherent topology flexibility with intelligent chromatic dispersion

inherent topology flexibility with a service protection provided through a direct integration with an upper layer protocol

NO.201 Retef to the exhibit.

An engineer is designing a multiarea OSPF network for a client who also has a large EIGRP domain EIGRP routes are getting redistributed into OSPF ,OSPF area 20 has routers with limited memory and CPU resources The engineer wants to block routes from EIGRP 111 from propagating into area 20 and allow EIGRP 222 routes to How in Which OSPF area type fulfills this design requirement?

area 20 as a stub area

type 5 LSA filtering on the ASBR between EIGRP 111 and area a

area 20 as a NSSA area

type 3 LSA filtering on the ABR between area 0 area 20

NO.202 The network team in XYZ Corp wants to modernize their infrastructure and is evaluating an implementation and migration plan to allow integration MPLS-based, Layer 2 Ethernet services managed by a service provider to connect branches and remote offices. To decrease OpEx and improve
response times when network components fail, XYZ Corp decided to acquire and deploy new routers. The network currently is operated over E1 leased lines (2 Mbps) with a managed CE service provided by the telco.
Drag and drop the implementation steps from the left onto the corresponding targets on the right in the correct order.

NO.203 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.)

service provider agreement to support tuned timers

manual updates to the peer groups

service provider scheduling of changes to the PE

number of routes on the CE router

number of VRFs on the PE router

NO.204 Which action must be taken before new VoIP systems are implemented on a network to ensure that the network is ready to handle the traffic?

low bandwidth

security

scalability

high latency

NO.205 The Agile Manifesto is a document that defines the key values and principles behind the Agile philosophy and helps development teams work more efficiently and sustainably Each of the four key values is split into two sections a left-hand side and a right-hand side In other words, though there is value in the items on the right we value the items on the left more What is one of the key values of the Agile Manifesto?

comprehensive documentation over working software

contract negotiation over customer collaboration

individuals and interactions over processes and tools

following a plan over responding to change

NO.206 Which three components are part of the foundational information security principles of the CIA triad? (Choose three.)

cryptography

confidentiality

authorization

identification

integrity

availability

NO.207 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 m 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?