Cisco 642-873 Online Practice Questions and Exam Preparation

Cisco 642-873 Online Questions & Answers

• Question 151:

  Which protocol should be run on the LAN side of two edge routers (that are terminating primary and backup WAN circuits) to provide quick failover in case of primary WAN circuit failure?

  A. VTP
  B. STP
  C. VRRP
  D. RIP
  C. VRRP

• Question 152:

  DRAG DROP

  Select and Place:

  

  

• Question 153:

  Which Cisco NAC Appliance component is optional?

  A. NAC Appliance Manager
  B. NAC Appliance Server
  C. NAC Appliance Agent
  D. NAC Appliance Policy Updates
  C. NAC Appliance Agent

• Question 154:

  Which option is used as a top-of-rack device that is managed by its parent device, providing ease of management?

  A. Cisco Nexus 2000
  B. Cisco Nexus 5000
  C. Cisco Nexus 7000
  D. Cisco Nexus 9000
  A. Cisco Nexus 2000

• Question 155:

  OSPF stub areas are an important tool for the Network designer; which of the following two should be considered when utilizing OSPF stub areas? (Choose two)

  A. OSPF stub areas increase the size of the LSDB with the addition of Type 3 and 5 LSAs
  B. OSPF not so stubby areas are particularly useful as a simpler form of summarization
  C. OSPF stub areas are always insulated from external changes
  D. OSPF totally stubby areas cannot distinguish among ABRs for the best route to destinations outside the area
  E. OSPF stub areas can distinguish among ASBRs for destinations that are external to the OSPF domain
  C. OSPF stub areas are always insulated from external changes
  D. OSPF totally stubby areas cannot distinguish among ABRs for the best route to destinations outside the area

• Question 156:

  When designing the routing for an Enterprise Campus network it is important to keep which of the following route filtering aspects in mind?

  A. Filtering is only useful when combined with route summarization
  B. It is best to filter (allow) the default and summary prefixes only in the Enterprise Edge to remote sites or site-to-site IPsec VPN networks
  C. IGPs (for example EIGRP or OSPF) are superior to route filtering in avoiding inappropriate transit traffic through remote nodes or inaccurate or inappropriate routing updates
  D. The primary limitation of router filtering is that it can only be applied on outbound updates
  B. It is best to filter (allow) the default and summary prefixes only in the Enterprise Edge to remote sites or site-to-site IPsec VPN networks

• Question 157:

  What is the next action taken by the Cisco NAC Appliance after it identifies a vulnerability on a client device?

  A. denies the client network resource access
  B. repairs the effected devices
  C. generates a Syslog message
  D. permits the client but limits to guest access
  B. repairs the effected devices

• Question 158:

  Which IPv6 transition model should be utilized when two or more independent transition mechanisms are required?

  A. tunneling
  B. dual stack
  C. service block
  D. hybrid
  E. manual
  D. hybrid

• Question 159:

  Which type of application traffic typically requires prioritization across networks and may use a DSCP value of 34 (AF41)?

  A. voice
  B. interactive video
  C. call signaling
  D. routing
  E. streaming video
  F. network management
  B. interactive video

• Question 160:

  Which technology allows multiple instances of a routing table to coexist on the same router simultaneously?

  A. VRF
  B. Cisco virtual router
  C. instanced virtual router
  D. IS-IS
  A. VRF