Cisco 400-007 Online Practice Questions and Exam Preparation

Cisco 400-007 Online Questions & Answers

• Question 381:

  Which two types of planning approaches are used to develop business-driven network designs and to facilitate the design decisions? (Choose two)

  A. cost optimization approach
  B. strategic planning approach
  C. modular approach
  D. tactical planning approach
  E. business optimization approach
  B. strategic planning approach
  D. tactical planning approach

• Question 382:

  Refer to the exhibit.

  

  Traffic was equally balanced between Layer 3 links on core switches SW1 and SW2 before an introduction of the new video server in the network. This video server uses multicast to send video streams to hosts and now one of the links between core switches is over utilized.

  Which design solution solves this issue?

  A. Aggregate links using Layer 2 link aggregation.
  B. Add more links between core switches.
  C. Apply a more granular load-balancing method on SW2.
  D. Filter IGMP joins on an over-utilized link.
  E. Apply a more granular load-balancing method on SW1.
  E. Apply a more granular load-balancing method on SW1.

• Question 383:

  Company XYZ is running BGP as their routing protocol. An external design consultant recommends that TCP path MTU discovery be enabled. Which effect will this have on the network?

  A. It will enhance the performance of TCP-based applications.
  B. It will increase the convergence time.
  C. It will improve the convergence time.
  D. It will create a loop free path.
  C. It will improve the convergence time.

• Question 384:

  Company XYZ is designing their network using the three-layer hierarchical model. At which layer must the QoS design classify or mark the traffic?

  A. access
  B. core
  C. collapsed core
  D. distribution
  A. access

• Question 385:

  DRAG DROP

  Drag and drop the multicast protocols from the left onto the current design situation on the right.

  Select and Place:

  

  

• Question 386:

  Refer to the exhibit.

  

  Two data center sites, X and Y, are connected with a direct backdoor link under these conditions:

  1. Site-specific firewalls are deployed behind the Internet edge routers R1 and R2.

  2. Both sites are advertising the address pool 100.75.10.0/23 toward the Internet.

  3. Site-X finds that Internet traffic returning from user PCs comes back on the Site-Y link. Which design resolves the issue?

  A. Add a static route toward the Internet on Site-X. Change the DNS policy on Site-Y to block traffic.
  B. Change the Site-Y firewall configuration to replicate the Site-X configuration. Advertise the low MED attribute on Site-X to the Internet.
  C. Establish control plane peering between edge routers. Have Site-X advertise an IP pool with a longer prefix.
  D. Use BGP MED to influence Site-X return traffic. Change the IP address scheme of both sites.
  D. Use BGP MED to influence Site-X return traffic. Change the IP address scheme of both sites.

• Question 387:

  Company XYZ runs OSPF in their network. A design engineer decides to implement hot- potato routing architecture. How can this implementation be achieved?

  A. Enable iBGP and apply prepend to ensure all prefixes will have the same length of the AS path attribute value.
  B. Redistribute the external prefixes onto OSPF and ensure the total metric calculation includes only the external value and the value is the same in all ASBRs.
  C. Enable OSPF load-balancing over unequal cost path.
  D. Redistribute the external prefixes onto OSPF and ensure that the total metric calculation includes external and internal values.
  D. Redistribute the external prefixes onto OSPF and ensure that the total metric calculation includes external and internal values.

• Question 388:

  An IT service provider is upgrading network infrastructure to comply with PCI security standards. The network team finds that 802.1X and VPN authentication based on locally- significant certificates are not available on some legacy phones. Which workaround solution meets the requirement?

  A. Replace legacy phones with new phones because the legacy phones will lose trust if the certificate is renewed.
  B. Enable phone VPN authentication based on end-user username and password.
  C. Temporarily allow fallback to TLS 1.0 when using certificates and then upgrade the software on legacy phones.
  D. Use authentication-based clear text password with no EAP-MD5 on the legacy phones.
  B. Enable phone VPN authentication based on end-user username and password.

• Question 389:

  Network changes because of mergers, acquisitions, and divestment can be very disruptive to the network if not carried out carefully. When an organization sells parts of its business, it must detach the affected parts of the network from the rest of the network.

  Which network design approach is appropriate to minimize the impact and risks as the divested parts of the network are detached?

  A. redundant design
  B. modular design
  C. less complex design
  D. routed access design
  B. modular design

• Question 390:

  Refer to the exhibit A service provider has a requirement to use Ethernet OAM to detect end-to-end connectivity failures between SP-SW1 and SP- SW2. Which two ways to design this solution are true? (Choose two)

  

  A. Enable unicast heartbeat messages to be periodically exchanged between MEPs
  B. Enable Connectivity Fault Management on the SP switches
  C. Use upward maintenance endpoints on the SP switches
  D. Forward E-LMI PDUs over VPLS
  E. Forward LLD PDUs over the VPLS
  B. Enable Connectivity Fault Management on the SP switches
  C. Use upward maintenance endpoints on the SP switches