What is a key design aspect to be considered when designing an IP network that will be carrying real-time
VoIP traffic?
A. Minimizing total bidirectional end-to-end delay to 0-150 ms
B. Minimizing total unidirectional end-to-end delay to 150-500 ms
C. Minimizing total bidirectional end-to-end delay to 0-50 ms
D. Minimizing total unidirectional end-to-end delay to 0-150 ms

In a redesign of a multiple-area network, it is recommended that summarization is to be implemented.For
redundancy requirements, summarization is done at multiple locations for each summary. Some customers
now complain of higher latency and performance issues for a server hosted in the summarized area. What
design issues should be considered when creating the summarization?
A. Summarization adds CPU overhead on the routers sourcing the summarized advertisement.
B. Summarization prevents the visibility of the metric to the component subnets.
C. Summarization creates routing loops.
D. Summarization causes packet loss when RPF is enabled.

When designing a WAN that will be carrying real-time traffic, what are two important reasons to
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consider serialization delay? (Choose two.)
A. Serialization delays are variable because they depend on the line rate of the interface and on the type of
the packet being serialized.
B. Serialization delay depends not only on the line rate of the interface but also on the size of the packet.
C. Serialization delays are invariable because they depend only on the line rate of the interface.
D. Serialization delays are variable because they depend only on the size of the packet being serialized.
E. Serialization delay is the time required to transmit the packet on the physical media.

Which two techniques are used in a network design to slow down the distribution of topology information
caused by a rapidly flapping link? (Choose two.)
A. Bidirectional Forwarding Detection
B. IP event dampening
C. link-state incremental SPF
D. link-state partial SPF
E. LSA throttling
F. SPF throttling

As a service provider you must support a Layer 2 virtualization protocol that does not include the use of label
switching. Which option can meet this design requirement?
A. VPLS
B. VRF-Lite
C. QinQ
D. 802.3ad

While reviewing an existing network design, you are discussing the characteristics of different STP versions.
Which protocol minimizes unicast flooding during TCN in a Layer 2 switched network with many VLANs?
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A. STP
B. MST
C. PVRSTP
D. PVSTP+

When adding an IPSec headend termination device to your network design, which two performance indicators
are the most accurate to determine device scalability? (Choose two.)
A. CPU capabilities
B. bandwidth capabilities
C. packets per second capabilities
D. maximum tunnel termination capabilities

When creating a network design, which one of these options provides for basic Layer 2 client isolation to
prevent broadcast traffic exposure?
A. SVI
B. VLAN
C. routed port
D. edge port

Which two aspects are considered when designing a dual hub, dual DMVPN cloud topology? (Choose two.)
A. recommended for high availability
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B. requires all sites to have dual Internet connections
C. spoke-to-spoke traffic will transit the hub unless spokes exchange dynamic routing directly
D. hub sites must connect to both DMVPN clouds
E. will only work with single-tier headend architecture

When a design calls for spanning VLANs across a campus network, what are two issues that need to be
addressed in the design? (Choose two.)
A. network convergence
B. network accessibility
C. fault isolation
D. application scalability
E. user experience