Nokia IS-IS 4A0-112 Practice Exam

Which of the following statements about the output in the exhibit is FALSE?

• The system interface is configured with IPv6 address 2001:db8:1:100::1/128.

• All interfaces are configured for IPv4 and IPv6.

• Interface "toR2" is configured with a global unicast IPv6 address.

• Interface "toR3" is not configured with a global unicast IPv6 address.

Router R6 advertises the prefix 172.10.3.0/24 using a routing protocol that supports ECMP. All routers are configured with an ECMP value of 4. All links shown in the diagram have the same cost. How many entries with a destination prefix of 172.10.3.0/24 are in router R1’s routing table?

• 1

• 2

• 3

• 4

Which of the following is NOT a convention used to represent IPv6 addresses?

• An IPv6 address is expressed as eight groups of hex digits separated by colons.

• Each group represents 16 bits of the total 128 bits that make up the IPv6 address.

• One or more consecutive groups of zeros can be omitted and replaced by two colons.

• At most, two instances of double colons can exist in the shortened address expression.

What is the destination address of the Neighbor Discovery message sent by a router to resolve an IPv6 address to a MAC address?

• The IPv6 address to resolve.

• The solicited-node multicast address.

• The link-local multicast address.

• The broadcast IPv6 address.

Which of the following statements about an indirect static route is FALSE?

• It requires that the target subnet is directly connected to the router where it is configured.

• It is only valid if the configured indirect address matches a valid entry in the route table.

• Its configured indirect address cannot be resolved through another static route.

• It imposes no overhead on the router’s link bandwidth or on its CPU.

A static route is configured on router R1 to reach the PC at 139.120.121.2. What needs to be the next-hop IP address of the configured route?

• 172.31.1.1

• 172.31.1.2

• 139.120.121.1

• 139.120.121.2

Router R2 is a Nokia 7750 SR. What is the correct command to configure a default route on router R2 to reach the corporate headquarters?

• configure router default-route route-type unicast next-hop 10.1.1.1 admin-state enable

• configure router default-route route-type unicast next-hop 10.1.1.2 admin-state enable

• configure router static-routes route 0.0.0.0/0 route-type unicast next-hop 10.1.1.1 admin-state enable

• configure router static-routes route 0.0.0.0/0 route-type unicast next-hop 10.1.1.2 admin-state enable

Which database is used by a link-state protocol to perform the SPF calculation that creates the shortest-path tree?

• Adjacency database

• Link-state database

• Forwarding database

• Metric database

A router receives a copy of a link state advertisement that is already in the local link-state database (LSDB), but the newly received copy has a sequence number higher than the one in the LSDB. Which of the following actions is NOT performed by the router?

• The router updates its link state database.

• The router transmits an acknowledgement to the sender.

• The router increases the sequence number of the received link state advertisement. The router floods the new link state advertisement to its neighbors.

• The router runs the SPF algorithm against the new link state database.

In the process of moving data packets from source to destination, which of the following statements about addressing is FALSE?

• Ethernet MAC addresses identify the devices connected to the same local-area network or subnet.

• A public IP address identifies a device worldwide.

• If two hosts are in the same subnet, the sender does not need to use an IP address to identify the intended destination of the data.

• If two hosts are in different subnets of a layer-3 domain, the sender needs to use both a MAC address and an IP address to ensure that the data is properly forwarded.