Nokia 4A0-100 Nokia Scalable IP Networks Exam Practice Test

208.40.224.16/28

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Specifying authorization information to control access to the router.

Defining an IP address for the management port.

Provisioning the IOM cards.

Setting the date and time for the system.

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 ?.

2 subnets, 1022 hosts

4 subnets, 510 hosts

2 subnets, 2048 hosts

4 subnets, 512 hosts

TCP (protocol 6) traffic between addresses 1.2.3.0/24 and 2.3.4.0/24 is dropped.

TCP (protocol 6) traffic from source address 1.2.3.0/24 to destination address 2.3.4.0/24 is forwarded.

TCP (protocol 6) traffic from source address 2.3.4.0/24 to destination address 1.2.3.0/24 is dropped.

TCP (protocol 6) traffic from source address 1.2.3.0/24 to destination address 2.3.4.0/24 is dropped.

IANA

IETF

RIR

IEEE

To provide an address that refers to all devices in a network.

To provide an address that refers to a specific group of devices in a network.

To provide an address that refers to a group of devices with the same IP address in different Layer 2 networks.

To provide an address that refers to a single device in a network.

Provides a connectionless delivery service.

Provides a connection oriented delivery service

Provides an unreliable transmission service,

Provides a reliable transmission service.

It reduces the number of routes advertised by the router.

It allows a single route table entry to represent multiple subnetworks

It can reduce the size of the routing table in neighboring routers.

It advertises more specific routes for routing advertisement stability.

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It forwards the packet to the next LSR without altering the MPLS label.

It swaps the MPLS label and forwards the packet to the next LSR.

It pushes a new MPLS label and forwards the packet to the next LSR.

It pops the MPLS label and forwards the packet to the next IP router.

Private

Global

Read-only

Exclusive

Preamble

Start Frame Delimiter

Length/Type

Frame Check Sequence

The router does a longest prefix match lookup.

The router checks the source address in the MAC FDB.

The router assigns a cost to each of its interfaces.

The router advertises routes to its neighbors.

Main

Security

Syslog

Debug

TCP (protocol 6) packets with source IP address 1.2.3.0/24 and source port number between 666 and 999 are forwarded.

TCP (protocol 6) packets with source IP address 1.2.3.0/24 and source port number between 666 and 999 are dropped.

TCP (protocol 6) packets with source IP address 1.2.3.0/24 or source port number between 666 and 999 are forwarded.

TCP (protocol 6) packets with destination IP address 1.2.3.0/24 and source port number between 666 and 999 are forwarded.

Console

CLI

Memory

File

Only on port 1/1/1.

On all ports except 1/1/1.

On all four ports.

On none of the ports.

OSPF

BGP

X.500

IS-IS

Ethernet

A Small Form-Factor Pluggable (SFP) module.

The Central Processing Unit (CPU).

The Control Plane.

The Switch Fabric.

Provides an unreliable, connectionless data transmission service.

Provides a mechanism for flow control.

Verifies the integrity of all received datagrams.

Provides services equivalent to the OSI data link layer.

All hosts on all networks must have unique host numbers.

IP addresses identify a host and the network on which it resides.

Clients are assigned 32-bit addresses and servers 64-bit addresses.

Router, switch and host addresses are drawn from unique address classes.

Preference.

Metric.

Dest prefix.

Next hop.

The IP datagram is encapsulated in the appropriate Layer 2 frame by the MDA.

The IP datagram passes through the switch fabric to reach the egress IOM.

The IP datagram is passed to the IOM.

A lookup is performed in the FIB to determine the egress interface.

Unicast address.

Broadcast address.

Multicast address.

Anycast address.

INWG

ALOHANET

IETF

NSFNET

When the router first receives a frame from a LAN.

After the forwarding table is checked.

After the IP datagram is extracted from the L2 frame.

Immediately before the IP packet is encapsulated for transmission.

STS-1 with a bit rate of 1.544 Mbit/s

STS-1 with a bit rate of 2.048 Mbit/s

STS-1 with a bit rate of 51.84 Mbit/s

STS-1 with a bit rate of 155.52 Mbit/s

Well known ports apply to routers only and are used for communication and control traffic. Well known port numbers are assigned by IANA and can have any value.

Well known ports are used by TCP and UDP. Well known port numbers range from 1024 to 65535 and are assigned by IANA.

Well known port numbers are used by both TCP and UDP. Well known port numbers range from 1 to 1023 and are assigned by IANA.

Well known ports numbers are used by TCP only. Well known port numbers are assigned by IANA and can have any value.

Providing path redundancy.

Preventing loops.

Handling collisions.

Allowing flooding of multicast traffic.

Contains all the components required to configure and run protocols on the Nokia 7750 SR/7450 ESS.

Loads the router configuration.

Transfers the router configuration from the router to the network management system.

Loads the router software image.

view tree

tree

info detail

info

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

The size of the Layer 2 frame cannot exceed 1518 bytes.

Provides error checking of the frame contents after transmission.

All the above.

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

A device that receives and retransmits a signal out its other 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.

5 Mbps.

10 Mbps.

15 Mbps.

20 Mbps.

It records the destination MAC address and the interface on which it arrived.

It records the source MAC address and the interface on which it arrived.

It floods the frame out of all its interfaces except the interface on which the frame arrived.

It transmits the frame out of the appropriate interface.

R7 silently discards the LSA received from R8.

R7 installs the LSA received from R8 in its link state database and floods a copy to its neighbors.

R7 discards the LSA received from R8 and sends an ACK to R8.

R7 installs the LSA received from R8 in its link state database, sends an ACK to R8 and floods a copy to its neighbors.

Checksum

SYN

Destination port

Window size

MTU

Link bandwidth.

Round trip time.

Hop count.

Route preference.

Virtual Private Wire Service

Virtual Private LAN Service

Virtual Private Routed Networks

Virtual Private Dark Fibre Service

Provide a connectionless delivery service.

Provide a connection oriented delivery service.

Provide an unreliable transmission service.

Provide a reliable transmission service.

CE always connects to a PE router.

CE always connects to a P router.

CE always connects to another CE device.

The CE does not connect to the service provider network.

TCP port 179.

UDP port 179.

TCP port 22.

UDP port 22.

The ACK tells the host A that host B wishes to establish a session.

The ACK tells host A the sequence number of the segment that was just received by host B.

The ACK tells host A the sequence number of the next segment that host B expects to see.

The ACK is flow control from host B and tells host A to reduce its transmission rate.

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

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.

next-hop 10.2.3.2

next-hop 192.168.2.1

next-hop 10.2 3.1

next-hop 192.168.2.0

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.

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.

10.2.3.2

10.1.1.1

10.2.3.1

10.1.1.2

Source port.

MTU.

Sequence number.

Acknowledgement number.

Window size.

From the customers perspective it looks as if all sites are connected by the same set of dark fibers.

From the customers perspective it looks as if all sites are connected to a private switched network administered by the service provider.

From the customers perspective it looks as if all sites are connected to a private routed network administered by the service provider.

From the customers perspective it looks as if all sites have public internet access administered by the service provider.

Preference

Metric

Dest prefix

Next-hop

Cost