Refer to the exhibit.

53

You are planning the design of an encrypted WAN. IP packets will be transferred over encrypted GRE tunnels
between routers B and C. The packet size is limited to a maximum of 1500 bytes inside the WAN between
routers B and C. If endpoint 1 tries to send 1500-byte IP packets to endpoint 2, in what three ways will the
network design handle the fragmentation in three different possible network configurations? (Choose three.)
A. When router B fragments packets after the encryption, router C must reassemble these fragmented
packets.
B. When router B fragments packets before the encryption, router C must reassemble these fragmented
packets.
C. When router B fragments packets after the encryption, the endpoint 2 must reassemble these fragmented
packets.
D. When router B fragments packets before the encryption, endpoint 2 must reassemble these fragmented
packets.
E. When router A fragments packets, router C must reassemble these fragmented packets.
F. When router A fragments packets, endpoint 2 must reassemble these fragmented packets.

A many-to-many enterprise messaging application is using multicast as a transport mechanism. As partof the
network design for this application, which multicast address should be used, according to best practices
outlined in RFC 2365?
A. 224.0.0.60
B. 232.192.0.60
C. 239.128.0.60
D. 239.193.0.60

Which design concern should be accounted for in all Layer 3 virtualization technologies?
A. Layer 3 redundancy
B. packet sizing
C. application usage
D. Layer 3 stability

A company plans to establish a new network using Cisco Catalyst switches for its multicast applications. What
is the disadvantage when two multicast applications are using the multicast IP addresses 234.17.4.5 and
234.145.4.5 inside the same network?
A. Multicast packets from both applications are flooded to all Layer 2 ports in a segment where a multicast
receiver is located.
B. Multicast packets from both applications are flooded to ports where one multicast receiver from one
application is located.
C. Only one multicast stream is received at the port where the receivers from both applications are located.
D. Both multicast senders will always receive the multicast packets from the other multicast application.
E. The routers doing PIM-SM cannot distinguish between the two multicast applications.

After the recent implementation of a new design that incorporated GRE tunnels into the network, the network
operations staff is seeing the following syslog message in multiple routers on the network – %TUN-5-RECURDOWN: Tunnel0 temporarily disabled due to recursive routing.
From a design perspective, what was not taken into account prior to implementing the solution?
A. The neighboring routers cannot respond within the specified hold time.
B. The interface on the router that is the source of the tunnel is down.
C. The interface on the neighboring router that is the source of the tunnel is down.
D. The router is learning the route to the tunnel destination address using the tunnel interface.
E. The tunnel interface on the router is not receiving any keepalives within the specified hold time.

You are asked to design a large campus network that will be using multicast for data transport. Which feature
should be enabled at the Layer 2 access edge for host-only ports?
A. PortFast
B. BPDU guard
C. PIM-SM
D. PIM query interval

Which two features can be used to extend VRFs across a campus? (Choose two.)
A. 802.1q trunks
B. LDP
C. MPLS TE
D. GRE
E. port channels

Which technique can you use to detect forwarding path failures at a uniform rate, and reconvergence times
will be consistent and predictable when your routers are in the same broadcast domain?
A. Enable BFD on your routers.
B. Configure your routers with IP-SLA to ping the peer router.
C. Configure your routers with IP-SLA and track to ping the peer and switch to a default route if the pings fail.
D. Tune your routing protocol timers.

A network administrator is in charge of multiple IPsec VPN headend devices that service thousands ofremote
connectivity, point-to-point, IPsec/GRE tunnels. During a recent power outage, in which it was foundthat a
backup power supply in one of those headend devices was faulty, one of the headend routers suffered a
complete shutdown event. When the router was successfully recovered, remote users found intermittent
connectivity issues that went away after several hours. Network operations staff accessed the headend
devices and found that the recently recovered unit was near 100% CPU for a long period of time. How would
you redesign the network VPN headend devices to prevent this from happening again in the future?
A. Move the tunnels more evenly across the headend devices.
B. Implement Call Admission Control.
C. Use the scheduler allocate command to curb CPU usage.
D. Change the tunnels to DMVPN.

A company is planning to connect its 30 sites with a VPLS WAN backbone. A router at each site should
establish neighborships with all other routers using the OSPF routing protocol. Which three points must be
considered regarding DR and BDR when different router platforms are used? (Choose three.)
A. It is a best practice that the routers with the most powerful hardware should take the role of the DR and
BDR.
B. If the IP OSPF priority is the same for all routers, the highest loopback IP address and router ID will decide
which routers will take the DR and BDR role during the selection process.
C. To select the DR and BDR, the IP OSPF priority must be set to a higher value than the default value at the
DR and BDR during the selection process.
D. To select the DR and BDR, the IP OSPF priority must be set to a lower value than the default value at the
DR and BDR during the selection process.
E. The role for the DR and BDR will be selected when a new OSPF router comes up.
F. To force two routers to become a DR and a BDR, the IP OSPF priority can be set to zero at all other
OSPF routers.