Network designers plan to interconnect two geographically separated data centers using an Ethernet-over-MPLS pseudowire. Within that design, the link between the sites is stable, there are no apparent loops in the
topology, and the root bridges for the respective VLANs are stable and unchanging. What additional aspect of
the design should be adjusted to mitigate the chance of connectivity issues to the peer data center when the
connection takes place?
A. Enable 802.1d on one data center, and 802.1w on the other.
B. Ensure that the spanning tree diameter for one or more VLANs is not too large.
C. Enable UDLD on the link between the data centers.
D. Enable root guard on the link between the data centers.

ACME Corporation is integrating IPv6 into their network, which relies heavily on multicast distribution of data.
Which two IPv6 integration technologies support IPv6 multicast? (Choose two.)
A. 6VPE
B. 6PE
C. dual stack
D. ISATAP
E. 6to4
F. IPv6INIP

A network designer wants to improve a company network design due to multiple network crashes. Which
technology would allow for the restore of a network connection without informing the Layer 3 protocol?
A. Bidirectional Forwarding Detection
B. automatic protection switching
C. UniDirectional Link Detection
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D. Ethernet OAM

What is a design aspect regarding multicast transport for MPLS Layer 3 VPNs using the Rosen Draft
implementation?
A. LDP is the multicast control plane protocol.
B. Multicast traffic is forwarded over GRE tunnels.
C. Multicast traffic is forwarded over LDP or RSVP signaled LSPs.
D. Using the MDT SAFI in BGP ensures that PIM can be disabled in the core.

A company plans to use BFD between its routers to detect a connectivity problem inside the switched network.
An IPS is transparently installed between the switches. Which packets should the IPS forward for BFDto work
under all circumstances?
A. IP packets with broadcast IP source addresses
B. IP packets with identical source and destination IP addresses
C. fragmented packets with the do-not-fragment bit set
D. IP packets with the multicast IP source address
E. IP packets with the multicast IP destination address
F. IP packets with the destination IP address 0.0.0.0

A company wants to use SSM as the multicast routing protocol inside its network. Some of its multicast
applications do not support IGMPv3. In which two ways can the mapping be done when these applications
send IGMPv2 join messages? (Choose two.)
A. The Layer 2 switches can send a request to a DNS server.
B. The Layer 3 multicast routers can send a request to a DNS server.
C. The mapping can be done statically at the Layer 2 switches.
D. The mapping can be done statically at the Layer 3 multicast routers.
E. The Layer 2 switches can transform the IGMPv2 join to an IGMPv3lite join.
F. The Layer 3 multicast routers can transform the IGMPv2 join to an IGMPv3lite join.

In order to meet your service level agreement, your network designer created a design solution that includes
interface dampening. In which two ways will interface dampening benefit your overall network design?
(Choose two.)
A. Interface dampening uses an exponential backoff algorithm to suppress event reporting to the upper-level
protocols.
B. When the interface is dampened, further link events are not reported to the upper protocol modules.
C. When the interface is dampened, further link events are reported to the upper protocol module.
D. Periodic interface flapping that affects the routing system as a whole should have a period shorter than the
system convergence time.

You are designing a network for a branch office. In order to improve convergence time, you are required to
use the BFD feature. Which four routing protocols can you use to facilitate this? (Choose four.)
A. EIGRP
B. IS-IS
C. BGP
D. static
E. RIP

You are the SAN designer for the ABC Company. Due to budget constraints, there is increased pressureby
management to further optimize server utilization by implementing virtualization technologies on allservers
and increase virtual machines density. Faced with some SAN challenges, the server team requests yourhelp
in the design and implementation of the SAN in the new virtualized environment.
In which two ways can NPIV be used in your proposed design? (Choose two.)
A. NPIV is used to assign multiple FCIDs to a single N Port.
B. NPIV is used to define and bind multiple virtual WWNs (VIs) to a single physical pWWN.
C. You recommend NPIV so that hosts can be members of different zones.
D. NPIV can be used to allow multiple applications on the same port to use different IDs in the same VSAN.

You are designing an optical network. Your goal is to ensure that your design contains the highest degree of
resiliency. In which two ways will you leverage a wavelength-switched optical network solution in your network
design? (Choose two.)
A. a wavelength-switched optical network assigns routing and wavelength information
B. a wavelength-switched optical network takes linear and nonlinear optical impairment calculation into
account
C. a wavelength-switched optical network guarantees restoration based strictly on the shortest path available
D. a wavelength-switched optical network eliminates the need for dispersion compensating units in a network