Cisco 640-864 Online Practice Questions and Exam Preparation

Cisco 640-864 Online Questions & Answers

• Question 41:

  A client wants to deploy a video conferencing platform in a multisite WAN environment. What two design considerations need to be evaluated? (Choose two.)

  A. CODECs supported by the video units
  B. buffer sizes on the routers
  C. POE capabilities of the switches
  D. number of current calls
  E. number of hops between sites
  A. CODECs supported by the video units
  D. number of current calls

• Question 42:

  Which Cisco technology using Nexus NX-OS infrastructure allows the network architect to create up to four separate control and data plane instances of the Nexus chassis?

  A. virtual port-channel
  B. virtual routing and forwarding
  C. virtual switching system
  D. virtual device context
  D. virtual device context

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  Virtualization

  Virtual local-area network (VLAN), virtual storage-area network (VSAN), and virtual device contexts (VDC) help to segment the LAN, SAN, and network devices instances.

  Cisco Nexus 1000V virtual switch for VMware ESX and ESXI help to deliver visibility and policy control for virtual machines (VM).

  Flexible networking options with support for all server form factors and vendors, including support for blade servers from Cisco, Dell, IBM, and HP with integrated Ethernet and Fiber Channel switches.

• Question 43:

  Characterizing an existing network requires gathering as much information about the network as possible. Which of these choices describes the preferred order for the information-gathering process?

  A. site and network audits, traffic analysis, existing documentation and organizational input
  B. existing documentation and organizational input, site and network audits, traffic analysis
  C. traffic analysis, existing documentation and organizational input, site and network audits
  D. site and network audits, existing documentation and organizational input, traffic analysis
  B. existing documentation and organizational input, site and network audits, traffic analysis

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  This section describes the steps necessary to characterize the existing network infrastructure and all sites. This process requires three steps:

  Step 1. Gather existing documentation about the network, and query the organization to discover additional information. Organization input, a network audit, and traffic analysis provide the key information you need. (Note that existing documentation may be inaccurate.) Step 2. Perform a network audit that adds detail to the description of the network. If possible, use traffic-analysis information to augment organizational input when you are describing the applications and protocols used in the network. Step 3. Based on your network characterization, write a summary report that describes the health of the network. With this information, you can propose hardware and software upgrades to support the network requirements and the organizational requirements.

• Question 44:

  A network engineer is designing an enterprise managed VPN solution for a large number of remote offices that do not have on-site IT support and communicate only with the home office. What type of VPN solution should be implemented?

  A. VPLS
  B. GRE
  C. IPsec
  D. EVPN
  E. DMVPN
  F. SSL client
  D. EVPN

• Question 45:

  What network virtualization technology can be leveraged within the data center to reduce the number of physical devices?

  A. VLANs
  B. VPLS
  C. VDC
  D. VSS
  C. VDC

• Question 46:

  What technology can secure data over an insecure medium and provide WAN redundancy in the event of a primary connection failure?

  A. virtual private network
  B. shadow PVC
  C. dial-up ISDN
  D. GRE Tunnel
  A. virtual private network

• Question 47:

  Drag the characteristics of the traditional campus network on the left to the most appropriate hierarchical network layer on the right.

  Select and Place:

  

  

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  Access

  The most feature-rich part of the campus network

  Provides security, QoS, and IP Multicast to the network

  Distribution

  Routing boundary (Dynamic, summarization, static)

  Enforces Policy within the network

  Core

  High level of availability, scalability, and fast convergence

  Provides a limited set of services

  Large-Building LANs

  Large-building LANs are segmented by floors or departments. The building-access component serves one or more departments or floors. The building-distribution component serves one or more building-access components. Campus and

  building backbone devices connect the data center, building-distribution components, and the enterprise edge-distribution component. The access layer typically uses Layer 2 switches to contain costs, with more expensive Layer 3 switches in

  the distribution layer to provide policy enforcement. Current best practice is to also deploy multilayer switches in the campus and building backbone.

  Cisco Enterprise Architecture Model

  Core

  Fast transport

  High reliability

  Redundancy

  Fault tolerance

  Low latency and good manageability

  Avoidance of slow packet manipulation caused by filters or other processes

  Limited and consistent diameter

  Quality of service (QoS)

  Distribution

  Policy-based connectivity

  Redundancy and load balancing

  Aggregation of LAN wiring closets

  Aggregation of WAN connections

  QoS

  Security filtering

  Address or area aggregation or summarization

  Departmental or workgroup access

  Broadcast or multicast domain definition

  Routing between virtual LANs (VLAN)

  Media translations (for example, between Ethernet and Token Ring)

  Redistribution between routing domains (for example, between two different routing protocols)

  Demarcation between static and dynamic routing protocols

  Access

  Layer 2 switching

  High availability

  Port security

  Broadcast suppression

  QoS

  Rate limiting

  Address Resolution Protocol (ARP) inspection

  Virtual access control lists (VACL)

  Spanning tree

  Trust classification

  Power over Ethernet (PoE) and auxiliary VLANs for VoIP

  Cisco Press CCDA 640-864 Official Certification Guide Fourth Edition, Chapter 3

• Question 48:

  DRAG DROP

  Select and Place:

  

  

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  Small Branch Design The small branch design is recommended for branch offices that do not require hardware redundancy and that have a small user base supporting up to 50 users. This profile consists of an access router providing WAN services and connections for the LAN services. The Layer 3 WAN services are based on the WAN and Internet deployment model. A T1 is used for the primary link, and an ADSL secondary link is used for backup. Other network fundamentals are supported, such as EIGRP, floating static routes, and QoS for bandwidth protection. Medium Branch Design The medium branch design is recommended for branch offices of 50 to 100 users, which is similar to the small branch but with an additional access router in the WAN edge (slightly larger) allowing for redundancy services. Large Branch Design The large branch design is the largest of the branch profiles, supporting between 100 and 1000 users. This design profile is similar to the medium branch design in that it also provides dual access routers in the WAN edge. In addition, dual Adaptive Security Appliances (ASA) are used for stateful firewall filtering, and dual distribution switches provide the multilayer switching component. The WAN services use an MPLS deployment model with dual WAN links into the WAN cloud. Cisco Press CCDA 640-864 Official Certification Guide Fourth Edition, Chapter 7

• Question 49:

  Which IP telephony component supports VoIP, PoE, and QoS?

  A. client endpoints
  B. voice-enabled infrastructure
  C. Cisco Unified Communications Manager
  D. Cisco Unified Contact Center
  B. voice-enabled infrastructure

• Question 50:

  Which Cisco device has the sole function at looking at threat detection and mitigation at the Enterprise edge?

  A. Cisco IOS router
  B. Cisco ASA
  C. Cisco Catalyst FWSM
  D. Cisco IPS
  D. Cisco IPS