Cisco 642-873 Online Practice Questions and Exam Preparation

Cisco 642-873 Online Questions & Answers

• Question 71:

  When designing remote access to the Enterprise Campus network for teleworkers and mobile workers, which of the following should the designer consider?

  A. It is recommended to place the VPN termination device in line with the Enterprise Edge firewall, with ingress traffic limited to SSL only
  B. Maintaining access rules, based on the source IP of the client, on an internal firewall drawn from a headend RADIUS server is the most secure deployment
  C. VPN Headend routing using Reverse Route Injection (RRI) with distribution is recommended when the remote user community is small and dedicated DHCP scopes are in place
  D. Clientless SSL VPNs provide more granular access control than SSL VPN clients (thin or thick), including at Layer7
  D. Clientless SSL VPNs provide more granular access control than SSL VPN clients (thin or thick), including at Layer7

• Question 72:

  Which of the following facts must be considered when designing for IP telephony within an Enterprise Campus network?

  A. Because the IP phone is a three-port switch, IP telephony extends the network edge, impacting the Distribution layer.
  B. Video and voice are alike in being bursty and bandwidth intensive, and thus impose requirements to be lossless, and have minimized delay and jitter.
  C. IP phones have no voice and data VLAN separation, so security policies must be based on upper layer traffic characteristics.
  D. Though multi-VLAN access ports are set to dot1q and carry more than two VLANs they are not trunk ports.
  D. Though multi-VLAN access ports are set to dot1q and carry more than two VLANs they are not trunk ports.

• Question 73:

  Private lines make use of which connection type based on cell switching?

  A. ATM
  B. ISP MPLS VPN
  C. VTI
  D. VPLS
  A. ATM

• Question 74:

  Which option describes the effect of using softphones instead of VoIP handsets on QoS implementation for the voice traffic?

  A. It provides a Layer 2 CoS marking in the frames that can be used for QoS implementation.
  B. Using softphones means that 802.1Q tagging must be configured between the PC and the switch.
  C. The voice traffic of softphones is mixed with data traffic of PC on the access VLAN.
  D. By using softphones, the implementation of a QoS depends only on trusting DSCP markings set by the PC.
  C. The voice traffic of softphones is mixed with data traffic of PC on the access VLAN.

• Question 75:

  A customer requires resiliency and availability for applications hosted in the data center. What two technologies meet this requirement? (Choose two.)

  A. SLB
  B. LTM
  C. GLBP
  D. GTM
  E. HSRP
  B. LTM
  D. GTM

• Question 76:

  Which multicast address must be available for FHRP advertisements in a multivendor environment?

  A. 224.0.0.9
  B. 224.0.0.18
  C. 224.0.0.102
  D. 224.0.0.2
  B. 224.0.0.18

• Question 77:

  What is the recommended subnet between two sites that have a point-to-point connection to conserve IP addresses?

  A. 255.255.255.0
  B. 255.255.252.0
  C. 255.255.255.252
  D. 255.255.255.240
  C. 255.255.255.252

• Question 78:

  The Cisco Nexus 1000V is intended to address which disadvantage of the VMware vSphere solution?

  A. Inability to deploy new functional servers without requiring physical changes on the network
  B. Complexity added by the requirement for an ESX host for each virtual machine
  C. Network administrators lack control of the access layer of the network
  D. To increase the number of physical infrastructure and the virtual machines that can be managed
  C. Network administrators lack control of the access layer of the network

• Question 79:

  What is an advantage of having an out-of-band management?

  A. It is less expensive to have an out-of-band management.
  B. Network devices can still be managed, even in case of network outage.
  C. There is no separation between the production network and the management network.
  D. SSH protocol must be used to manage network devices.
  B. Network devices can still be managed, even in case of network outage.

• Question 80:

  There are 3 steps to confirm whether a range of IP addresses can be summarized. Which of the following is used in each of these 3 steps?

  A. The first number in the contiguous block of addresses
  B. The last number in the contiguous block of addresses
  C. The size of the contiguous block of addresses
  D. The subnet mask of the original network address
  C. The size of the contiguous block of addresses