Cisco 400-007 Online Practice Questions and Exam Preparation

Cisco 400-007 Online Questions & Answers

• Question 161:

  When a company network architect is working on a new network design, they are expected to ensure that business requirements and technical aspects are factored in, but often there are other factors that come into play as well. Which nonbusiness constraint must also be considered throughout the design phase?

  A. Location
  B. Cost
  C. Time
  D. Compliance
  D. Compliance

• Question 162:

  A large enterprise cloud design team is evaluating different cloud consumption models.

  What is an example of typical PaaS limitations or concerns that should be considered during service design?

  A. vendor lock-in
  B. runtime issues
  C. lack of control
  D. multi-tenant security
  A. vendor lock-in

• Question 163:

  Which two statements about MLD snooping are true? (Choose two)

  A. When MLD snooping is enabled, QoS is automatically enabled.
  B. A VLAN can support multiple active MLD snooping queries, as long as each one is associated to a different multicast group.
  C. AN MLD snooping querier election occurs when any MLD snooping querier goes down or if there is an IP address change on the active querier.
  D. When multiple MLD snooping queriers are enabled in a VLAN, the querier with the lowest IP address in the VLAN is elected as the active MLD snooping querier.
  C. AN MLD snooping querier election occurs when any MLD snooping querier goes down or if there is an IP address change on the active querier.
  D. When multiple MLD snooping queriers are enabled in a VLAN, the querier with the lowest IP address in the VLAN is elected as the active MLD snooping querier.

• Question 164:

  You are tasked to design a QoS policy for a service provider so they can include it in the design of their MPLS core network If the design must support an MPLS network with six classes, and CEs will be managed by the service provider, which QoS policy should be recommended?

  A. map IP CoS bits into the IP Precedence field
  B. map flow-label bits into the Exp field
  C. map IP precedence bits into the DSCP field
  D. map DSCP bits into the Exp field
  D. map DSCP bits into the Exp field

• Question 165:

  An engineer must redesign the QoS strategy for Company XYZ

  The current network is experiencing many dropped packets due to oversubscription of the guaranteed bandwidth allocated by the service provider.

  Company XYZ wants a design with a QoS strategy that controls the traffic flow leaving the Edge router to minimize packet drops

  Which QoS technique can be recommended as a solution?

  A. LLQ
  B. traffic shaping
  C. rate-limiting
  D. policing
  B. traffic shaping

• Question 166:

  What are two descriptions of network optimization? (Choose two.)

  A. maintain high availability
  B. proactive network management
  C. network redesign
  D. network health maintenance
  E. identify network requirements
  B. proactive network management
  C. network redesign

• Question 167:

  Refer to the exhibit.

  

  This network is running OSPF as the routing protocol. The internal networks are being advertised in OSPF London and Rome are using the direct link to reach each other although the transfer rates are better via Barcelona. Which OSPF design change allows OSPF to calculate the proper costs?

  A. Change the OSPF reference bandwidth to accommodate faster links.
  B. Filter the routes on the link between London and Rome
  C. Change the interface bandwidth on all the links.
  D. Implement OSPF summarisation to fix the issue
  A. Change the OSPF reference bandwidth to accommodate faster links.

• Question 168:

  Which main IoT migration aspect should be reviewed for a manufacturing plant?

  A. Sensors
  B. Security
  C. Applications
  D. Wi-Fi Infrastructure
  E. Ethernet Switches
  A. Sensors

• Question 169:

  You want to mitigate failures that are caused by STP loops that occur before UDLD detects the failure or that are caused by a device that is no longer sending BPDUs. Which mechanism do you use along with UDLD?

  A. Root guard
  B. BPDU guard
  C. Loop guard
  D. BPDU filtering
  C. Loop guard

• Question 170:

  Company XYZ was not satisfied with the reconvergence time OSPF is taking. BFD was implemented to try to reduce the reconvergence time, but the network is still experiencing delays when having to reconverge. Which technology will improve the design?

  A. BFD echo
  B. Change the protocol to BGP
  C. Change the OSPF hello and dead intervals
  D. OSPF fast hellos
  A. BFD echo