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Q1. Which three terms describe the primary functions of the distribution layer of the campus network design hierarchy? (Choose three.)
A. provides end-user connectivity
B. provides high speed transport
C. provides QoS services
D. enforces security policies
E. provides WAN connections
F. connects access devices to the core backbone
Answer: C,D,F
Explanation: Link: http://www.cisco.com/en/US/docs/solutions/Enterprise/Campus/campover.html#wp708979
Q2. With deterministic Wireless LAN Controller redundancy design, the different options available to the designer have their own strengths. Which one of these statements is an example of such a strength?
A. Dynamic load balancing, or salt-and-pepper access point design, avoids the potential impact of oversubscription on aggregate network performance.
B. N+N redundancy configuration allows logically grouping access points on controllers to minimize intercontroller roaming events.
C. N+N+1 redundancy configuration has the least impact to system management because all of the controllers are colocated in an NOC or data center.
D. N+1 redundancy configuration uses Layer 3 intercontroller roaming, maintaining traffic on the same subnet for more efficiency.
Answer: B
Explanation: With such an arrangement there is no complex mesh of access points & controllers. Link: http://www.cisco.com/web/learning/le31/le46/cln/qlm/CCDA/design/understanding-wireless-network-controller-technology-3/player.html
N+N WLC Redundancy With N+N redundancy, shown in Figure 5-14. an equal number of controllers hack up each other. For example, a pair of WLCs on one floor serves as a backup to a second pair on another floor. The top WLC is primary for API and AP2 and secondary for AP3 and AP4. The bottom WLC is primary for AP3 and AP4 and secondary for API and AP2. There should be enough capacity on each controller to manage a failover situation.
N+N+1 WLC Redundancy
With N+N+1 redundancy, shown in Figure 5-15, an equal number of controllers back up each other (as with N+N), plus a backup WLC is configured as the tertiary WLC for the APs. N+N+1 redundancy functions the same as N+N redundancy plus a tertiary controller that backs up the secondary controllers. The tertiary WLC is placed in the data center or network operations center
Q3. Which statement describes the recommended deployment of DNS and DHCP servers in the Cisco Network Architecture for the Enterprise?
A. Place the DHCP and DNS servers in the Enterprise Campus Access layer and Enterprise branch.
B. Place the DHCP and DNS servers in the Enterprise Campus Server Farm layer and Enterprise branch.
C. Place the DHCP server in the Enterprise Campus Core layer and Remote Access_VPN module with the DNS server in the Internet Connectivity module.
D. Place the DHCP server in the Enterprise Campus Distribution layer with the DNS server in the Internet Connectivity module.
Answer: B
Explanation: For the Enterprise Campus, DHCP and internal DNS servers should be located in the Server Farm and they should be redundant. External DNS servers can be placed redundantly at the service provider facility and at the Enterprise branch.
Q4. Which three describe challenges that are faced when deploying an environment for teleworkers? (Choose three.)
A. supporting a mix of technically knowledgeable and nontechnical users
B. simplifying router installation and configuration
C. verifying available power at employee's house for necessary equipment
D. avoiding situations where employees might use nonstandard hardware or configurations
E. reducing daily commuting time to main office location
F. providing access to FTP servers located in main office location
G. implementing leased line connectivity between main office and employee's home location
Answer: A,B,D
Q5. A hierarchical design of the EIGRP domain facilitates which two of the following? (Choose two.)
A. route summarization
B. faster convergence
C. unequal cost load balancing
D. redistribution
E. virtual links
Answer: A,B
Q6. Which three sources does a network designer use to collect information for characterizing an existing network? (Choose three.)
A. staff input
B. visual inventory
C. network audit
D. traffic analysis
E. server statistics
Answer: A,C,D
Q7. Which three protocols support VLSM? (Choose three.)
A. RIPv2
B. RIPv1
C. EIGRP
D. OSPF
E. IGRP
Answer: A,C,D
Q8. DRAG DROP
Answer:
Q9. What two features are advantages of adding a secondary WAN link at the enterprise edge? (Choose two.)
A. provides additional bandwidth and load balancing capabilities
B. acts as a backup link in event the primary link fails
C. reduces capital and operational costs
D. improves security and prevents against denial of service attacks
E. distributes traffic proactively based on link utilization
Answer: A,B
Q10. Which two of the following are benefits of using a modular approach to network design? (Choose two.)
A. improves flexibility
B. facilitates implementation
C. lowers implementation costs
D. improves customer participation in the design process
Answer: A,B
Q11. Which three types of WAN topologies can be deployed in the Service Provider Module? (Choose three.)
A. ring
B. star
C. full mesh
D. core/edge
E. collapsed core
F. partial mesh
Answer: B,C,F
Q12. Which model of ISR is utilized for the teleworker design profile? A. Cisco 1900 Series
B. Cisco 1800 Series
C. Cisco 800 Series
D. Cisco 500 Series
Answer: C
Q13. Which three service categories are supported by an ISR? (Choose three.)
A. voice
B. security
C. data
D. Internet
E. storage
F. satellite
Answer: A,B,C
Q14. Which two can be used as a branch office WAN solution? (Choose two.)
A. frame relay
B. MPLS
C. Metro Ethernet
D. GPRS
E. dial-up modem
F. 3G USB modems
Answer: B,C
Explanation: Explanation Frame relay is old 'shared' technology today's sites use some flavor or Metro E or MPLS/VPN
Q15. What routing configuration can prevent routing loops between IGPs?
A. route filters
B. route reflectors
C. auto summarization
D. virtual links
Answer: A
Q16. When designing a WAN backup for voice and video applications, what three types of connections should be used? (Choose three.)
A. Private WAN
B. internet
C. ISDN
D. MPLS
E. dial-up
F. ATM
G. DSL
Answer: A,C,D