Practice Free 400-007 Exam Online Questions
An MPLS service provider is offering a standard EoMPLS-based VPLS service to Customer A. providing Layer 2 connectivity between a central site and approximately 100 remote sites. Customer A wants to use the VPLS network to carry its internal multicast video feeds which are sourced at the central site and consist of 20 groups at Mbps each.
Which service provider recommendation offers the most scalability?
- A . EoMPLS-based VPLS can carry multicast traffic in a scalable manner
- B . Use a mesh of GRE tunnels to carry the streams between sites
- C . Enable snooping mechanisms on the provider PE routers.
- D . Replace VPLS with a Layer 3 MVPN solution to carry the streams between sites
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.
For a company that offers online billing systems for their customers, which strategy ensures the RPO is kept as low as possible?
- A . cloud backup to mirror data
- B . spare onsite disks
- C . periodic snapshot of data
- D . backup on external storage
Which three characteristics of the Single Tier and the Dual Tier Headend Architectures for DMVPN designs are true? (Choose three.)
- A . A Dual Tier Headend Architecture is required when using dual cloud topologies with spoke-to-spoke connectivity
- B . In a Single Tier Headend Architecture there is a single headend router per DMVPN cloud topology
- C . A Single Tier Headend Architecture is required when using dual cloud topologies with spoke-to-spoke connectivity
- D . In a Dual Tier Headend Architecture, there are two different headend routers per DMVPN cloud for high availability purposes
- E . In a Single Tier Headend Architecture, the GRE tunnel endpoint and encryption endpoint functionalities are on the same router
- F . In a Dual Tier Headend Architecture, the GRE tunnel endpoint and encryption endpoint functionalities are on different routers
A business requirement stating that failure of WAN access for dual circuits into an MPLS provider for a Data Centre cannot happen due to related service credits that would need to be paid has led to diversely routed circuits to different points of presence on the providers network?
What should a network designer also consider as part of the requirement?
- A . Provision of an additional MPLS provider
- B . Out of band access to the MPLS routers
- C . Ensuring all related remote branches are dual homed to the MPLS network
- D . Dual PSUs & Supervisors on each MPLS router
DRAG DROP
Drag and drop the characteristics from the left onto the corresponding network management options on the right.
What is a web-based model in which a third-party provider hosts applications that are available to customers over the Internet?
- A . PaaS
- B . SaaS
- C . laaS
- D . WaaS
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
What is the best approach in a large legacy application migration scenario when the goal is to complete the migration in the shortest possible time?
- A . refactoring
- B . replatfoming
- C . rearchitecting
- D . rehosting
Network designers often segment networks by creating modules for various reasons Sometimes however a network can be unintentionally segmented For instance, if the only way to connect a remote site to a headquarters or regional site is to connect them both to the public Internet the corporate network is now unintentionally segmented.
Which of the following option can be used to desegment the network in this situation?
- A . Build virtual networks that pass over the network
- B . Mark traffic for special handling through quality of service
- C . Configure little to no control data plane policy
- D . Block specific sources from reaching specific destinations