Free Nokia 4A0-112 Exam Dumps Questions & Answers

There are several differences between IS-IS Hello packets used on broadcast interfaces and on point-to-point interfaces.
Which of the following statements is FALSE?

• A.  On broadcast interfaces there are different Hello packet types for level-1 and level-2 adjacencies, whereas on point-to-point interfaces there is a single Hello packet type.
• B.  The neighbors are identified using their interface MAC addresses on broadcast Hello messages and using their system IDs on point-to-point Hello messages.
• C.  Broadcast Hello messages identify the elected designed IS (DIS) and point-to-point Hello messages do not.
• D.  The multicast MAC addresses to which the Hello messages are sent are different on broadcast interfaces and on point-to-point interfaces.

Refer to the exhibit.

All routers in the diagram are running a link-state routing protocol. Before the link failure, all routers have operational adjacencies with each other and there is a BFD session between routers R1 and R3. After the link failure, which of the following affects the routing protocol's convergence time?

• A.  The value of the Ethernet hello timers on the switches.
• B.  The time taken by the switches to detect that the physical ports are down.
• C.  The value of the routing protocol hello timers on routers R1 and R3.
• D.  The value of the BFD transmit interval, receive interval and multiplier settings on routers R1 and R3.

Which of the following is a valid alternative representation of the IPv6 address
2001:0da8:0000:0000:0024:0000:4ab9:0300?

• A.  2001:da8::0:24::4ab9:300
• B.  2001:da8::24::4ab9:300
• C.  2001:da8::24:0:4ab9:300
• D.  2001:0da8::0024:0000:4ab9:03

A routing domain is using a single-area link-state routing protocol. Which of the following is NOT information that a router can share with other routers in the domain using protocol-specific messages?

• A.  A copy of the local routing table.
• B.  The local router ID and the router IDs of neighboring routers.
• C.  IP prefixes known by the router because it is running ad additional routing protocol.
• D.  The IP prefixes of subnets directly attached to the router.

Which of the following statements about router interfaces on a Nokia 7750 SR is FALSE?

• A.  They can be assigned IPv4 and/or IPv6 addresses.
• B.  The system interface exists by default.
• C.  They can be used in pairs on the same subnet for redundancy.
• D.  They can be logical or physical.