Exam Code: ccda 200 310 official cert guide pdf (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Designing for Cisco Internetwork Solutions
Certification Provider: Cisco
Free Today! Guaranteed Training- Pass ccda 200 310 official cert guide pdf Exam.
Q121. What device virtualization technology allows for a single point of management and a centralized routing instance?
A. ACE
B. VSS
C. VDC
D. VM
Answer: B
Q122. Spanning Layer 2 across geographically separate data centers is a key consideration for current data center designs. Which is the name of the NX-OS technology that facilitates MAC in IP transport for Layer 2 VLANs across any IP network?
A. Overlay Transport Virtualization
B. Virtual Private LAN Services
C. Generic Routing Encapsulation
D. QinQ tunneling
Answer: A
Q123. Which two of these practices are considered to be best practices when designing the access layer for the enterprise campus? (Choose two.)
A. Implement all of the services (QoS, security, STP, and so on) in the access layer, offloading the work from the distribution and core layers.
B. Always use a Spanning Tree Protocol; preferred is Rapid PVST+.
C. Use automatic VLAN pruning to prune unused VLANs from trunked interfaces to avoid broadcast propagation.
D. Avoid wasted processing by disabling STP where loops are not possible.
E. Use VTP transparent mode to decrease the potential for operational error.
Answer: B,E
Explanation:
When designing the building access layer, you must consider the number of users or ports required to size up the LAN switch. Connectivity speed for each host should also be considered. Hosts might be connected using various technologies such as Fast Ethernet, Gigabit Ethernet, or port channels. The planned VLANs enter into the design.
Performance in the access layer is also important. Redundancy and QoS features should be considered.
The following are recommended best practices for the building access layer:
. Limit VLANs to a single closet when possible to provide the most deterministic and highly available topology.
. Use Rapid Per-VLAN Spanning Tree Plus (RPVST+) if STP is required. It provides the faster convergence than traditional 802.1d default timers.
. Set trunks to ON and ON with no-negotiate.
. Manually prune unused VLANs to avoid broadcast propagation (commonly done on the distribution switch).
. Use VLAN Trunking Protocol (VTP) Transparent mode, because there is little need for a common VLAN database in hierarchical networks.
. Disable trunking on host ports, because it is not necessary. Doing so provides more security and speeds up PortFast.
. Consider implementing routing in the access layer to provide fast convergence and Layer 3 load balancing.
. Use the switchport host commands on server and end-user ports to enable PortFast and disable channeling on these ports.
. Use Cisco STP Toolkit, which provides
. PortFast: Bypass listening-learning phase for access ports
. Loop GuarD. Prevents alternate or root port from becoming designated in absence of bridge protocol data units (BPDU)
. Root GuarD. Prevents external switches from becoming root
. BPDU GuarD. Disables PortFast-enabled port if a BPDU is received Cisco Press CCDA 640-864 Official Certification Guide Fourth Edition, Chapter 3, Page 85
Q124. What are the three primary functions of the distribution layer of the campus network design hierarchy? (Choose three.)
A. provide end-user connectivity
B. provide high speed transport
C. provide QoS services
D. enforce security policies
E. provide WAN connections
F. connect access devices to the core backbone
Answer: C,D,F
Q125. Which layer of the OSI model does Cisco recommend to place the enterprise network core layer, when designing a network based on its switched hierarchical design?
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
Answer: C
Q126. Which four services does the architecture for Media Services contain? (Choose four.)
A. access services
B. transport services
C. storage services
D. forwarding services
E. session control services
F. security services
G. filtering services
H. remote access services
Answer: A,B,C,E
Explanation:
An architecture framework for media services supports different models of video models. As shown in Figure 14-13, the network provides service to video media in the Media Services Framework. Those services are access services, transport services, bridging services, storage servers, and session control services, which arc provided to endpoints.
Access services provide identity of end devices, mobility, and location services.
Transport services provide QoS for reliable packet delivery.
Bridging services provide transcoding, conferencing, and recording services of media streams.
Storage services provide capture and storage of media streams and content management and distribution.
Session control services provide session signaling and control and gateway services.
Q127. At which layer of the network is route summarization recommended?
A. data link layer
B. core layer
C. distribution layer
D. access layer
Answer: C
Q128. Which of the following is a component within the Cisco Enterprise Campus module?
A. Teleworker
B. E-Commerce
C. Internet Connectivity
D. Building Distribution
E. WAN/MAN Site-to-Site VPN
Answer: D
Q129. Which one of these statements is true concerning the data center distribution (aggregation) layer design?
A. With Layer 3 at the aggregation layer, the physical loops in the topology must still be managed by STP.
B. The boundary between Layer 2 and Layer 3 must reside in the multilayer switches, independent of any other devices such as firewalls or content switching devices.
C. A mix of both Layer 2 and Layer 3 access is sometimes the most optimal.
D. In a small data center, the aggregation layer can connect directly to the campus core, exchanging IP routes and MAC address tables.
Answer: C
Q130. Which two routing protocols usually converge most quickly? (Choose two.)
A. RIPv1
B. RIPv2
C. BGP
D. OSPF
E. EIGRP
Answer: D,E
To know more about the 200-310, click here.