CCDA 640-864 Q&As – Network Structure Models (1-5)

January 25, 2012

Section 2 – Network Structure Models

QUESTION 1
What is primary consideration when choosing a routed network design over a traditional campus network design?
A.    Layer 3 service support at the network edge
B.    the routing protocol choice: open (OSPF) or proprietary (EIGRP)
C.    the routing abilities of the host devices
D.    the need to control the broadcast domains within the campus core
Answer: A

Explanation:
Layer 3 ability at network edge should be available to leverage the benefits of routed network design.
Link: http://www.cisco.com/en/US/docs/solutions/Enterprise/Campus/campover.html

QUESTION 2
When selecting which hardware switch to use throughout an enterprise campus switched network, which consideration is not relevant?
A.    whether data link layer switching based the MAC address is required
B.    the number of shared media segments
C.    which infrastructure service capabilities are required
D.    whether to support Layer 3 services at the network edge.
Answer: B
Explanation:
Shared media are not used in modern networks; all links are operating full-duplex Link: http://www.cisco.com/en/US/docs/solutions/Enterprise/Campus/campover.html

QUESTION 3
Layer 2 switching is exclusively used in which Enterprise Campus Module layer?
A.    Server Farm
B.    Campus Core
C.    Building Access
D.    Building Distribution
E.    Internet Connectivity
Answer: C
Explanation:
Access layer provides network connectivity to end users which is layer 2 in nature. Link: http://www.cisco.com/en/US/docs/solutions/Enterprise/Campus/campover.html#wp708780

QUESTION 4
Which network scenario is static routing most appropriate?
A.    parallel WAN links
B.    IPSec VPN
C.    expanding networks
D.    hierarchical routing
Answer: B
Explanation:
IPSec VPN are point to point connections and works easily with static routes.
Link: CCDA Self Study Guide: Diane Teare

QUESTION 5
Which three terms describe the primary functions of the distribution layer of the campus network design hierarchy? (Chose three)
A.    provides end-user connectivity
B.    provides high speed transport
C.    provides QoS services
D.    enforces security policies
E.    provides WAN connection
F.    connects access devices to the core backbone
Answer: CDF
Explanation:
D, C, F are properties of distribution layer. Link: http://www.cisco.com/en/US/docs/solutions/Enterprise/Campus/campover.html#wp708979

 
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