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Q61. According to Cisco, which four improvements are the main benefits of the PPDIOO lifecycle approach to network design? (Choose four.)
A. faster ROI
B. improved business agility
C. increased network availability
D. faster access to applications and services
E. lower total cost of network ownership
F. better implementation team engagement
The PPDIOO life cycle provides four main benefits:
+ It improves business agility by establishing business requirements and technology strategies.
+ It increases network availability by producing a sound network design and validating the network operation.
+ It speeds access to applications and services by improving availability, reliability, security, scalability, and performance.
+ It lowers the total cost of ownership by validating technology requirements and planning for infrastructure changes and resource requirements.
(Reference: Cisco CCDA Official Exam Certification Guide, 3rd Edition) described in the link below. Link: http://www.ciscopress.com/articles/article.asp?p=1608131&seqNum=3
Q62. When there is a need for immunity to EMI for connecting locations that are greater than 100 meters apart, which two solutions can be utilized? (Choose two.)
A. multimode fiber
B. Fiber Channel
C. HVDC transmission lines
D. single-mode fiber
E. serial RS-232
F. Gigabit Ethernet 1000BASE-CX
Q63. Which three statements are true regarding the virtual interface on a Cisco Wireless LAN Controller? (Choose three.)
A. supports mobility management
B. serves as a DHCP relay
C. used for all controller to AP communication
D. supports embedded Layer 3 security
E. default for out-of-band management
F. default for in-band management
G. provides connectivity to AAA servers
Q64. Your supervisor has asked you to deploy a routing protocol within the lab environment that will allow for unequal cost multipath routing. Which should you choose?
Q65. An organization is conducting an evaluation on the migration to IPv6 within the enterprise network and has requested clarification on recommended migration strategies. What three migration models would accomplish the organization's goal? (Choose three.)
A. Dual Stack
B. Service Block
Q66. What device virtualization technology allows for a single point of management and a centralized routing instance?
Q67. Which statement describes an advantage of the Layer 2 access model over the Layer 3 access model in the data center?
A. It enables NIC teaming.
B. It removes STP dependency.
C. It increases scalability.
D. It decreases convergence.
Q68. A network engineer is using the Cisco enterprise architecture model. In what module do network management servers reside?
A. Enterprise Campus
B. Enterprise Edge
C. Remote Modules
D. SP Edge WAN/internet
Q69. You want to gather as much detail as possible during a network audit, to include data time stamping across a large number of interfaces, customized according to interface, with a minimal impact on the network devices themselves. Which tool would you use to meet these requirements?
D. Cisco Discovery Protocol
NetFlow provides extremely granular and accurate traffic measurements and a high-level collection of aggregated traffic. The output of netflow information is displayed via the show ip cache flow command on routers. The Table shows a description of the fields for NetFlow output.
Table. Netflow Output escription
Q70. A routing protocol neighbor relationship has been established between two routers across the public Internet using GRE. What technology can be used to encrypt this communication channel?
A. access lists
B. IP security
C. context based access
D. intrusion prevention system