Cisco 400-007 Online Practice Questions and Exam Preparation

Cisco 400-007 Online Questions & Answers

• Question 51:

  You are tasked with the design of a high available network. Which two features provide fail closed environments? (Choose two.)

  A. EIGRP
  B. RPVST+
  C. MST
  D. L2MP
  A. EIGRP
  B. RPVST+

• Question 52:

  What is an architectural framework created by ETSI that defines standards to decouple network functions from proprietary hardware-based appliances and have them run in software on standard x86 servers?

  A. NFVIS
  B. NFV
  C. VNF
  D. NPIV
  B. NFV

• Question 53:

  Which three tools are used for ongoing monitoring and maintenance of a voice and video environment? (Choose three.)

  A. flow-based analysis to measure bandwidth mix of applications and their flows
  B. call management analysis to identify network convergence-related failures
  C. call management analysis to identify CAC failures and call quality issues
  D. active monitoring via synthetic probes to measure loss, latency, and jitter
  E. passive monitoring via synthetic probes to measure loss, latency, and jitter
  F. flow-based analysis with PTP time-stamping to measure loss, latency, and jitter
  A. flow-based analysis to measure bandwidth mix of applications and their flows
  C. call management analysis to identify CAC failures and call quality issues
  D. active monitoring via synthetic probes to measure loss, latency, and jitter

• Question 54:

  Which optimal use of interface dampening on a fast convergence network design is true?

  A. When occasional flaps of long duration occur
  B. when numerous adjacent flaps of very short duration occur
  C. when the router hardware it slower than the carrier delay down detection
  D. when the switch hardware is faster than the debounce timer down detection
  B. when numerous adjacent flaps of very short duration occur

• Question 55:

  A customer has a functional requirement that states HR systems within a data center should be segmented from other systems that reside in the same data center and same VLAN. The systems run legacy applications by using hard-coded IP addresses. Which segmentation method is suitable and scalable for the customer?

  A. data center perimeter firewalling
  B. VACLs on data center switches
  C. transparent firewalling
  D. routed firewalls
  B. VACLs on data center switches

• Question 56:

  Company XYZ is in the process of identifying which transport mechanism(s) to use as their WAN technology. Their main two requirements are:

  1.a technology that could offer DPI, SLA, secure tunnels, privacy, QoS, scalability, reliability, and ease of management

  2.a technology that is cost-effective

  Which WAN technology(ies) should be included in the design of company XYZ?

  A. Software-defined WAN should be the preferred choice because it complements both technologies, covers all the required features, and it is the most cost-effective solution.
  B. Internet should be the preferred option because it is cost effective and supports BFD, IP SLA. and IPsec for secure transport over the public Internet.
  C. Both technologies should be used. Each should be used to back up the other one; where the primary links are MPLS, the internet should be used as a backup link with IPsec (and vice versa).
  D. MPLS meets all these requirements and it is more reliable than using the Internet. It is widely used with defined best practices and an industry standard.
  A. Software-defined WAN should be the preferred choice because it complements both technologies, covers all the required features, and it is the most cost-effective solution.

• Question 57:

  Which three items do you recommend for control plane hardening of an infrastructure device? (Choose three.)

  A. redundant AAA servers
  B. Control Plane Policing
  C. warning banners
  D. to enable unused .services
  E. SNMPv3
  F. routing protocol authentication
  B. Control Plane Policing
  E. SNMPv3
  F. routing protocol authentication

• Question 58:

  Refer to the exhibit.

  

  ACME Mining has four data centers in Santiago. Cape Town. Mumbai, and Beijing, full- mesh connected via a 400 Mb/s EVP-LAN They want to deploy a new mission-critical application with these requirements:

  1.cluster heartbeat 2 Mb/s continuous (250 KB/s)

  2.cluster heartbeat one-way maximum latency 100 ms

  These are the current ping tests results between the four data centers:

  

  Which hosting data center pair can host the new application?

  A. Mumbai and Beijing
  B. Santiago and Cape Town
  C. Santiago and Mumbai
  D. Cape Town and Mumbai
  E. Cape Town and Beijing
  F. Santiago and Beijing
  D. Cape Town and Mumbai

• Question 59:

  Which two advantages of using DWDM over traditional optical networks are true? (Choose two.)

  A. inherent topology flexibility and service protection provided without penalty through intelligent oversubscription of bandwidth reservation
  B. ability to expand bandwidth over existing optical Infrastructure
  C. inherent topology flexibility with built-in service protection
  D. inherent topology flexibility with intelligent chromatic dispersion
  E. inherent topology flexibility with a service protection provided through a direct integration with an upper layer protocol
  B. ability to expand bandwidth over existing optical Infrastructure
  C. inherent topology flexibility with built-in service protection

• Question 60:

  A legacy enterprise is using a Service Provider MPLS network to connect its head office and branches. Recently, they added a new branch to their network. Due to physical security concerns, they want to extend their existing IP CCTV network of the head office to the new branch, without any routing changes in the network. They are also under some time constraints.

  What is the best approach to extend the existing IP CCTV network to the new branch, without incurring any IP address changes?

  A. L2TPv3
  B. VXLAN
  C. EoMPLS
  D. GRE
  A. L2TPv3