Which two statements best describe intra-domain route summarization? (Choose two.)
A. EIGRP and OSPF must be manually configured to summarize at non-classful boundaries.
B. EIGRP and OSPF automatically summarize at classful network boundaries.
C. OSPF and RIP automatically summarize at classful network boundaries.
D. EIGRP and RIP automatically summarize at classful network boundaries.
E. EIGRP and OSPF automatically summarize at non-classful boundaries.
Correct Answer: AD
Section: Routing Explanation
Both RIPv2 and EIGRP automatically summarize at Classful network boundries
To restore the default behavior of automatic summarization of subnet routes into network-level routes, use the auto-summary command in router configuration mode. To disable this function and transmit subprefix routing information across classful network boundaries, use the no form of this command.
auto-summary no auto-summary
To restore the default behavior of automatic summarization of subnet routes into network-level routes, use the auto-summary command in router configuration mode. To disable this function and send subprefix routing information across classful network boundaries, use the no form of this command.
auto-summary no auto-summary Usage Guidelines
Route summarization reduces the amount of routing information in the routing tables. RIP Version 1 always
uses automatic summarization. If you are using RIP Version 2, you can turn off automatic summarization by specifying the no auto-summary command. Disable automatic summarization if you must perform routing between disconnected subnets. When automatic summarization is off, subnets are advertised.
Which two VoIP characteristics are affected most by codec choice? (Choose two.)
A. voice quality
B. voice packet header size
C. bandwidth required for voice calls
D. silent packet handling
Correct Answer: AC
Section: Voice Video Explanation
A network design document is being prepared for a customer. Which three network design elements must be included? (Choose three.)
A. proof of concept
B. data sources
C. design details
D. organizational policies
E. implementation plan
Correct Answer: ACE
Section: Design Explanation
The design document describes the business requirements; old network architecture; network requirements; and design, plan, and configuration information for the new network. The network architects and analysts use it to document the new network changes, and it serves as documentation for the enterprise. The design document should include the following sections:
Introduction describes the projects purpose and the reasons for the network design.
Design Requirements lists the organizations requirements, constraints, and goals.
Existing Network Infrastructure includes logical (Layer 3) topology diagrams; physical topology diagrams; audit results; network health analysis; routing protocols; a summary of applications; a list of network routers, switches, and other devices; configurations; and a description of issues.
Design contains the specific design information, such as logical and physical topology, IP addressing, routing protocols, and security configurations.
Proof of Concept results from live pilot or prototype testing.
Implementation Plan includes the detailed steps for the network staff to implement the new installation and changes.
Appendixes contains list of exiting network devices, configurations, and additional information used in the design of the network.
Which of these accurately describes dial backup routing?
A. it always uses distance vector routing protocols
B. once the backup link is activated it will remain active even after the primary link is restored
C. it always uses permanent static routes
D. it is supplied by the service provider as a secondary PVC at no additional charge
E. the router intiates the dial backup link when a failure is detected on the primary link
Correct Answer: E
Section: WAN VPN Explanation
WAN Backup Design
Redundancy is critical in WAN design for the remote site because of the unreliable nature of WAN links, when compared to LANs that they connect. Most enterprise edge solutions require high availability between the primary and remote site. Because WAN links have lower reliability and lack bandwidth, they are good candidates for most WAN backup designs. Branch offices should have some type of backup strategy in the event of a primary link failure. Backup links can be either dialup, permanent WAN, or Internet-based connections.
Cisco Press CCDA 640-864 Official Certification Guide Fourth Edition, Chapter 7
Which statement correctly describes queuing in environments supporting teleworkers?
A. Queuing occurs on the outbound interface.
B. Hardware queues are configured for appropriate PQ, CQ, or WFQ.
C. Priority queuing guarantees some level of service to all traffic.
D. WFQ is the Cisco IOS default on all WAN links regardless of speed.
E. CQ is for time-sensitive protocols.
Correct Answer: A
Section: Management – Operations Explanation
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