Cisco 400-007 Online Practice Questions and Exam Preparation

Cisco 400-007 Online Questions & Answers

• Question 11:

  Which purpose of a dynamically created tunnel interface on the design of IPv6 multicast services Is true?

  A. first-hop router registration to the RP
  B. multicast client registration to the RP
  C. multicast source registration to the RP
  D. transport of all IPv6 multicast traffic
  D. transport of all IPv6 multicast traffic

• Question 12:

  You are designing a new Ethernet-based metro-area network for an enterprise customer to connect 50 sites within the same city OSPF will be the routing protocol used.

  The customer is primarily concerned with IPv4 address conservation and convergence time.

  Which two combined actions do you recommend? (Choose two)

  A. Use a multipoint Metro-E service for router connections
  B. Use a single address per router for all P2P links
  C. Use P2P links between routers in a hub-and-spoke design
  D. Configure address aggregation at each site router
  E. Determine which OSPF routers will be DR/BDR
  A. Use a multipoint Metro-E service for router connections
  C. Use P2P links between routers in a hub-and-spoke design

• Question 13:

  In search of a system capable of hosting, monitoring compiling. and testing code in an automated way, what can be recommended to the organization?

  A. Jenkins
  B. Ansible
  C. Perl
  D. Chef
  A. Jenkins

• Question 14:

  You are designing a large-scale DMVPN network with more than 500 spokes using EIGRP as the IGP protocol. Which design option eliminates potential tunnel down events on the spoke routers due to the holding time expiration?

  A. Increase the hold queue on the physical interface of the hub router.
  B. Increase the hold queue on the tunnel interface of the spoke routers
  C. Increase the hold queue on the tunnel interface of the hub router
  D. Apply QoS for pak_priority class
  E. Increase the hold queue on the physical interface of the spoke routers.
  C. Increase the hold queue on the tunnel interface of the hub router

• Question 15:

  Which two conditions must be met for EIGRP to maintain an alternate loop-free path to a remote network? (Choose two.)

  A. The Reported Distance from a successor is lower than the local Feasible Distance.
  B. The Reported Distance from a successor is higher than the local Feasible Distance.
  C. The feasibility condition does not need to be met.
  D. The Feasible Distance from a successor is lower than the local Reported Distance.
  E. A feasible successor must be present.
  A. The Reported Distance from a successor is lower than the local Feasible Distance.
  E. A feasible successor must be present.

• Question 16:

  A business invests in SDN and develops its own SDN controller that, due to budget constraints, runs on a single controller. The controller actively places an exclusive lock on the configuration of the devices to ensure it is the only source of changes to the environment. What is the result if the controller fails?

  A. All device configurations are in read-only mode until the controller is restored.
  B. The control plane is unavailable until the controller is restored.
  C. If a device fails, the configuration backup is unavailable
  D. Manual changes are only possible until the controller is restored
  A. All device configurations are in read-only mode until the controller is restored.

• Question 17:

  Company XYZ Is running a redundant private WAN network using OSPF as the underlay protocol The current design accommodates for redundancy In the network, but it Is taking over 30 seconds for the network to reconverge upon failure.

  Which technique can be Implemented In the design to detect such a failure in a subsecond?

  A. STP
  B. fate sharing
  C. OSPF LFA
  D. BFD
  E. flex links
  D. BFD

• Question 18:

  The controller has a global view of the network, and it can easily ensure that the network is in a consistent and optimal configuration. Which two statements describe a centralized SDN control path? (Choose two.)

  A. It significantly improves the latency when performing reactive handling of PACKET_IN events
  B. Integrating smart NIC capabilities on the local host level is made easier through rest APIs
  C. A centralized controller can support all southbound APIs, which allows for easy integration with legacy equipment
  D. It is highly-available by design with no single-point-of-failure risks present
  E. Scaling of the centralized controller cluster is challenging for services like DHCP and load-balancing
  C. A centralized controller can support all southbound APIs, which allows for easy integration with legacy equipment
  E. Scaling of the centralized controller cluster is challenging for services like DHCP and load-balancing

• Question 19:

  VPLS is implemented in a Layer 2 network with 2000 VLANs.

  What is the primary concern to ensure successful deployment of VPLS?

  A. Flooding is necessary to propagate MAC address reachability information
  B. PE scalability
  C. The underlying transport mechanism
  D. VLAN scalability
  B. PE scalability

• Question 20:

  You are using iSCSI to transfer files between a 10 Gigabit Ethernet storage system and a 1 Gigabit Ethernet server The performance is only approximately 700 Mbps and output drops are occurring on the server switch port. Which action will improve performance in a cost- effective manner?

  A. Change the protocol to CIFS.
  B. Increase the queue to at least 1 GB
  C. Use a WRED random drop policy
  D. Enable the TCP Nagle algorithm on the receiver
  A. Change the protocol to CIFS.