Layer 3 Technologies

CCNP Layer 3 Technologies - 11 Questions

Question 1

An engineer has configured a router to use EUI-64, and was asked to document the IPv6 address of the router. The router has the following interface parameters:

mac address C601.420F.0007

subnet 2001:DB8:0:1::/64

Which IPv6 addresses should the engineer add to the documentation?

A) 2001:DB8:0:1:C601:42FF:FE0F:7

B) 2001:DB8:0:1:FFFF:C601:420F:7

C) 2001:DB8:0:1:FE80:C601:420F:7

D) 2001:DB8:0:1:C601:42FE:800F:7

Question 2

For security purposes, an IPv6 traffic filter was configured under various interfaces on the local router. However, shortly after implementing the traffic filter, OSPFv3 neighbor adjacencies were lost. What caused this issue?

A) The traffic filter is blocking all ICMPv6 traffic.

B) The global anycast address must be added to the traffic filter to allow OSPFv3 to work properly.

C) The link-local addresses that were used by OSPFv3 were explicitly denied, which caused the neighbor relationships to fail.

D) IPv6 traffic filtering can be implemented only on SVIs.

Question 3

What is the purpose of the autonomous-system {autonomous-system-number} command?

A) It sets the EIGRP autonomous system number in a VRF.

B) It sets the BGP autonomous system number in a VRF.

C) It sets the global EIGRP autonomous system number.

D) It sets the global BGP autonomous system number.

Question 4

Router A and Router B are configured with IPv6 addressing and basic routing capabilities using OSPFv3. The networks that are advertised from Router A do not show up in Router B's routing table. After debugging IPv6 packets, the message "not a router" is found in the output. Why is the routing information not being learned by Router B?

A) OSPFv3 timers were adjusted for fast convergence.

B) The networks were not advertised properly under the OSPFv3 process.

C) An IPv6 traffic filter is blocking the networks from being learned via the Router B interface that is connected to Router A.

D) IPv6 unicast routing is not enabled on Router A or Router B.

Question 5

Which type of traffic does DHCP snooping drop?

A) discover messages

B) DHCP messages where the source MAC and client MAC do not match

C) traffic from a trusted DHCP server to client

D) DHCP messages where the destination MAC and client MAC do not match

Question 6

Which command only announces the 1.2.3.0/24 network out of FastEthernet 0/0?

A) distribute list 1 out

B) distribute list 1 out FastEthernet0/0

C) distribute list 2 out

D) distribute list 2 out FastEthernet0/0

Question 7

Which prefix is matched by the command ip prefix-list name permit 10.8.0.0/16 ge 24 le 24?

A) 10.9.1.0/24

B) 10.8.0.0/24

C) 10.8.0.0/16

D) 10.8.0.0/23

Question 8

After you review the output of the command show ipv6 interface brief, you see that several IPv6 addresses have the 16-bit hexadecimal value of "FFFE" inserted into the address. Based on this information, what do you conclude about these IPv6 addresses?

A) IEEE EUI-64 was implemented when assigning IPv6 addresses on the device.

B) The addresses were misconfigured and will not function as intended.

C) IPv6 addresses containing "FFFE" indicate that the address is reserved for multicast.

D) The IPv6 universal/local flag (bit 7) was flipped.

E) IPv6 unicast forwarding was enabled, but IPv6 Cisco Express Forwarding was disabled.

Question 9

A packet capture log indicates that several router solicitation messages were sent from a local host on the IPv6 segment. What is the expected acknowledgment and its usage?

A) Router acknowledgment messages will be forwarded upstream, where the DHCP server will allocate addresses to the local host.

B) Routers on the IPv6 segment will respond with an advertisement that provides an external path from the local subnet, as well as certain data, such as prefix discovery.

C) Routers on the IPv6 segment will respond with an advertisement that provides an external path from the local subnet, as well as certain data, such as prefix discovery.

D) All local host traffic will be redirected to the router with the lowest ICMPv6 signature, which is statically defined by the network administrator.

Question 10

A) Traffic from the 172.16.0.0/16 network will be blocked by the ACL.

B) Traffic from the 172.16.0.0/16 network will be blocked by the ACL.

C) The 10.0.0.0/8 network will not be in the routing table on Router B.

D) Users on the 10.0.0.0/8 network can successfully ping users on the 192.168.5.0/24 network, but users on the 192.168.5.0/24 cannot successfully ping users on the 10.0.0.0/8 network.

E) Router B will not advertise the 10.0.0.0/8 network because it is blocked by the ACL.

Question 11

A router with an interface that is configured with ipv6 address autoconfig also has a link-local address assigned. Which message is required to obtain a global unicast address when a router is present?

A) DHCPv6 request

B) router-advertisement

C) neighbor-solicitation

D) redirect