4A0-100 Nokia Scalable IP Networks Questions and Answers

It uses the forwarding table to find a match for the source IP address.

It uses the ARP table to find a match for the source MAC address.

It uses the ARP table to find a match for the destination MAC address.

It uses the forwarding table to find a match for the destination IP address.

Console

Session

Memory

File

208.40.224.16/28

208.40.224.32/28

208.40.224.48/28

208.40.224.64/28

Type the first few letters of the command, then press Ctrl C.

Type the first few letters of the command, then press Esc.

Type the first few letters of the command, then press Tab.

Type the first few letters of the command, then type ?.

Route learned from router R1.

Route learned from router R2.

Router learned from router R3.

Route learned from router R4.

CPM management Ethernet port

CPM console serial port

Port 1/1/1

Any port on an installed MDA

It provides a standardized method of communication.

It simplifies complex procedures.

It reduces protocol overhead.

It isolates layers and defines how they should interact.

It is used as a L3 broadcast address.

It is a logical interface address.

It can have any prefix value.

It is used for layer-2 forwarding.

The ingress LER

The CE device

The P router

The egress LER

It is used to maintain adjacency between neighbors.

It is used to request link state updates from neighbors.

It is used to deliver link state updates to neighbors.

It is used to confirm delivery of updates between neighbors.

2 subnets, 1022 hosts

4 subnets, 510 hosts

2 subnets, 2048 hosts

4 subnets, 512 hosts

Private

Global

Read-only

Exclusive

The Media Dependent Adapter (MDA)

The Input/ Output Module (IOM)

The eXpandable Media Adapter (XMA)

The Control Processor Module (CPM)

The LAG cost is equal to the link cost divided by 3.

The LAG cost is equal to the link cost.

The LAG is operationally down.

The LAG cost is equal to the link cost divided by 5.

An Internet content provider

An Internet service provider

An enterprise

A regional Internet registry

An IP filter is used to discard packets with checksum errors.

An IP filter can allow IP packets into a network or deny IP packets from entering a network.

Multiple ingress and egress filter policies can be applied to a network interface.

Once an IP filter is applied, it cannot be modified.

Router R1 pushes labels for both LSP A and LSP B.

Router R4 pushes labels for both LSP A and LSP B.

Router R1 pushes labels for LSP A, while router R4 pushes labels for LSP B.

Router R4 pushes labels for LSP A, while router R1 pushes labels for LSP B.

There must be multiple ports assigned to the LAG.

All ports in the LAG must be configured with the same characteristics.

Auto-negotiation must be enabled on all ports in the LAG.

All of the above.

Routers send a copy of their routing table to their neighbors periodically.

Routers flood link information throughout the entire area.

Network converges quickly (within several seconds) after a topology change.

Routers do not have precise knowledge of the entire network topology.

RTR-A>config>router>if>ingress# filter ip 1

RTR-B>config>router>if>ingress# filter ip 1

RTR-B>config>router>if>egress# filter ip 1

RTR-A>config>router>if>egress# filter ip 1

Intra-city ISP traffic

Allocation of the global IP address space

Allocating IP addresses for residential customer traffic

Allocating North American IP addresses

1

2

7

10

IEEE

IETF

NSFNET

ITU-T

APNIC

1

2

5

32

An Ethernet network with redundant paths not running STP.

An ATM network.

A SONET network.

All of the above.

It forwards the data to the switch fabric.

It discards excess data packets.

It converts the incoming data to an internal format.

It performs Quality of Service operations and buffers incoming data.

Broadcast storms caused by redundancy in Layer 2 networks.

Missing protocol field in the Ethernet header.

Missing sequence number in the Ethernet header.

Unreliable data transfer in Layer 2 networks.

116.14.17.16

116.14.17.31

116.14.17.192

116.14.17.189

INWG

ALOHANET

IETF

NSFNET

Resolves a Mac address given a specific IP address.

Allows a single public IP address to represent multiple private IP addresses simultaneously.

Maps a private address to a well known port number.

Provides a one to one mapping from a private to a public address.

Provides an address that refers to all the devices in a given network.

Provides an address to refer to a specific group of devices in a given network.

Provides an address to refer to a group of devices having the same IP addresses in different Layer 2 networks.

Provides an address to refer to a single device on a given network.

Application data is transported in 53-byte cells.

ATM circuits are identified by a VPI/VCI value.

Provides enhanced QoS support with 5 classes of service.

Ideal for multiple services on the same physical line.

All of the above.

None of the above

IBM.

US Military.

Nokia.

NASA.

Bell Labs

Devices on different VLANs cannot communicate with each other.

Devices on different VLANs can communicate with each other as long as they are connected to the same switch.

Devices on different VLANs can communicate with each other as long as the switches they are attached to are connected to each other with an Ethernet connection.

Devices on different VLANs can communicate with each other if there is an IP router to connect the VLANs.

Provides an universal addressing scheme

Ensures data is delivered across the Layer 2 network.

Provides reliable data transfers.

Provides a physical interface to the network.

Provides a universal addressing scheme to uniquely identify destinations in the network

Size of frame cannot exceed 1518 bytes.

Provides error checking of the frame contents on ingress.

All of the above.

The Service ATM Point is used for ATM connections to a PE.

The Service Access Point is defined on the PE device and is the customers access to the service.

The Service Access Point is defined on the P device and is the customers access to the service.

The Service Access Point is defined on the CE device and is the customers access to the service.

4 subnets, 64 hosts

64 subnets, 4 hosts

4 subnets, 62 hosts

64 subnets, 2 hosts

6 subnets, 30 hosts

You cannot have overlapping IP addresses. Customers must change their IP address assignment.

Each VPRN service maintains a separate VPN routing and forwarding instance to separate customer routing information. This allows for overlapping addresses.

A VPRN ignores IP addressing information and uses MAC addressing instead, which are always unique.

A VPRN translates customer IP addresses to a private addressing scheme administered by the service provider.

Network Solutions INC

IANA

IETF

ITU-T

IEEE

Half-duplex transmission is less efficient because the frame MTU is smaller.

An end-station connected to a hub will always be half-duplex.

Ethernet switches only support half-duplex transmission.

All of the above.

File sizes

Port statistics

Log-id 100 files

TiMOS image files

Using the IP address of the packet.

Using the MAC address of the frame.

Using port numbers.

Using Connection Identifier Numbers (CIN).

A passive device simply used to connect two or more cables. It does not generate or amplify any signals.

A device that receives and retransmits a signal out its ports but does not do any Layer 2 analysis of the data.

A device that receives a signal and based on the Layer 2 destination address, makes a decision on which ports the signal should be retransmitted.

A device that receives a signal and based on the Layer 3 destination address makes a decision on which ports the signal should be retransmitted.

Based on the metrics of the routing protocol, find the best path to the destination network and install it in the routing table.

Provide a CLI interface to allow the operator to configure the dynamic routing protocol on the router.

Based on the routing protocol preference values, chose the route with the lowest preference and install it in the routing table.

Provide a CLI interface to allow the network operator to install static routes in the routing table.

UDP has less overhead because it is only used for transmission of small amounts of data.

UDP has less overhead then TCP because there is no checksum field in UDP.

UDP overhead is the same as TCP because it uses the same fields in the header.

UDP has less overhead because there is no requirement for acknowledgment or retransmission.

IGP

IBGP

EBGP

EGP

BGP cannot be run between routers in different ASs.