Company X will be integrating an IPv6 application into their network and wants to develop a
test environment to evaluate application performance across the network. This application will
require both unicast and multicast communications. The company can do this implementation
only in certain areas of its existing IPv4-only network, but wants all areas to communicate with
each other. When developing the design to provide connectivity between these testinglocations, what tunneling technology would work in this scenario?

A network designer has provisioned a router to use IPsec to encrypt the traffic over a GRE
tunnel going to a web server at a remote location. From the router,the network designer can
ping the web server, although the users in the office comment that they are unable to reach it.
(Note: The DF bit is not set.) Which aspect should be changed in the design of the virtual
connection?

You are designing a network using multipoint GRE tunnels and need to be able to detect when
connectivity between the GRE tunnel endpoints is broken. Which statement is true about
configuring keepalives for multipoint GRE tunnels?

Refer to the exhibit.

Youare designing a loop-free hierarchical VPLS service. Which two design considerations should
be implemented for the pseudowires between the N-PE and U-PE routers? (Choose two.)

Youare designing a Group Encrypted Transportvirtual private network solution for an existing
branch network. The existing network has the following characteristics:
 50 remote sites (with an additional 30 remote sites expected over
the next 3 years)
 Connectivity between all sites is via Multiprotocol Label Switching
Layer 3 virtual private network service from a single provider
 Open Shortest Path First is the routing protocol used between
provider edge and customer edge routers
 The customer edge routers will become group members
performing the encryption between sites
Which additional routing protocol would you use for the overlay routing between the group
members?

Youare tasked with implementing a 1000-phone remote access solution, where phones will
traverse a WAN edge router.Assuming all of the following features are supported in a
hardware-assisted manner, which of the following will have the most detrimental impact on the
delay of the packet?

Yourorganization is working on a design solution for a new Internet-based remote access
virtual private network that has 1000 remote sites. A network administrator recommends
GETVPN as the model because the network of today uses DMVPN, which results in a lot of
background NHRP control traffic. What is a potential problem with using GETVPN for this design
solution?

Youare the lead network designer for an enterprise company called ABC, and you are leading
design discussions regarding IPv6 implementation into their existing network. A question is
raised regarding older Layer 2 switches that exist in the network, and if any changes are
required to these Layer 2 switches for successful IPv6 implementation. Which two responses
should you give? (Choose two.)

When designing a network, which two security features should be added to the design to
protect hosts from potential IPv6 neighbor discovery denial of service attacks at the access
layer? (Choose two.)

During a corporate merger, a network designer is asked for a solution that will provide
connectivity between the two enterprise networks. The solution must have the ability to
support video sessions so that the CEO can message merger activities to the employees. The
designer decides to consider multicast as a transport with MSDP to provide redundancy. Which
transport feature does the network designer need to apply to the interconnecting firewall to
ensure that Source-Active messages between the MSDP peers can be sent in both enterprise
networks?