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

BGP

VPWS

VPRN

ISP

VPLS

IGP

IBGP

EBGP

EGP

BGP cannot be run between routers in the same AS.

Virtual Private Wire Service .

Virtual Private LAN Service.

Virtual Private Routed Networks.

Virtual Private Dark Fiber Service.

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 LSR refers to its routing table and forwards the packet to the next LSR or LER without altering the MPLS label.

The LSR refers to its MPLS label table, swaps the label and forwards the packet to the next LSR or LER.

The LSR refers to its MPLS label table forwards the packet to the next LSR or LER without altering the MPLS label.

The LSR refers to its MPLS label table, pops the label and forwards the packet to the next IP router.

A string of consecutive 1's.

A string of consecutive 0's.

A string of alternating 10's.

The network address is determined by masking the source address with a port's if Index binary representation.

Using the IP address of the packet.

Using the MAC address of the frame.

Using port numbers.

Using Connection Identifier Numbers (CIN).

LDP monitors the available bandwidth on all links and signals the LSP based on this information.

LDP uses the shortest hop-count between two endpoints for the LSP.

LDP must be configured hop-by-hop by the service provider.

LDP follows the path chosen by the IGP.

Responds in real time to network failures.

Can only be used for routing within an autonomous system.

Uses a hop-count metric to determine the best route to a network.

Explicitly defines the next hop based on operator input.

config router static-route 192.168.2.0/24 next-hop 10.2.3.2

config router static-route 10.2.3.1 next-hop 192.168.2.0

config router static-route 192.168.2.0/24 next-hop 10.2.3.1

config router static-route 10.2.3.2 next-hop 192.168.2.0

An entry included in the default configuration of the router that is used if no dynamic routing protocols or static routes are configured.

A wildcard entry used when the destination network is not specifically defined in the routing table.

An entry selected based on the route that has the least cost to the destination (path with the most physical bandwidth)

An entry used by the routing protocol when it is unable to calculate the best route to the destination.

Preference

Metric

Dest prefix

Next-hop

Cost

These ports identify the physical location of the sender and the receiver on the IP router.

These ports are used as addresses to communicate with the IP layer.

TCP does not use source or destination ports.

These ports are used as an address to identify the upper layer application using the TCP connection.

Provides a data transport service to higher protocol layers.

Provides a data transport service for routing and control protocols such as OSPF and ICMP.

Provides a universal address plan to uniquely identify every device in the network.

Defines a standard method for framing data for transmission on the physical network medium.

Virtual Private Wire Service

Virtual Private LAN Service

Virtual Private Routed Networks

Virtual Private Dark Fibre Service

Real-time audio application, such as VoIP

Web browser

Email application

Telnet

next-hop 10.2.3.2

next-hop 192.168.2.1

next-hop 10.2 3.1

next-hop 192.168.2.0

It restricts the sender from sending too much data when there is congestion in the network.

It allows the receiver to control the rate at which the sender transmits data.

It forces the sender to send only one segment at a time.

It allows the receiver to drop segments without the sender having to retransmit.

To provide an address that refers to all the IP devices in a given subnetwork.

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 having the same IP address in different Layer 2

domains.

To provide an address that refers to a single device on a given subnetwork.

VPWS is a simple point-to-point service.

VPWS emulates a Layer 2 connection between two customers.

VPWS does not perform MAC learning.

VPWS encapsulates Layer 2 frames into IP datagrams.

IANA

IETF

RIR

IEEE

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.

172.16.9.0/24 next-hop 10.10.10.1

172.16.9.0/24 next-hop 10.10.10.2

172.16.9.0.24 next-hop 10.10 10 3

0.0.0.0/32 next-hop 172.16.9.1

Preamble

Start Frame Delimiter

Length/Type

Frame Check Sequence

IP-filters may be applied on interface ingress, egress, or both.

Multiple IP-filters can be applied in each direction.

An IP-filter may only be applied to a single interface if the scope is set to template.

An IP-filter may have multiple match criteria per entry.

The default-action of an IP-filter is always drop.

IP addresses are assigned by IEEE to vendors.

Classless IP addresses provide hierarchy based on a variable length subnet mask.

Classless IP addresses provide hierarchy based on fixed subnet masks of /24, /16, and /8.

IP addresses provide hierarchy based on the country code and regional identifier.

Router R1 is an iLER for both LSPs.

Router R1 is an eLER for both LSPs.

Router R1 is an iLER for LSP A and an eLER for LSP B.

Router R1 is an iLER for LSP B and an eLER for LSP A.

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.

Cost

Round-trip time

Hop-count

Route preference

/25

/26

/28

/30

They are deployed over point-to-point physical topologies to allow sub-50ms convergence.

An ADM (Add Drop Multiplexer) is used to connect various sites to the infrastructure.

IP datagrams are encapsulated in a PPP frame for transmission over an SDH network,

IP datagrams are encapsulated in an Ethernet frame for transmission over a SONET network.

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

Routers send frequent periodic updates to the entire network.

Routers know the entire network topology.

Routers use hop-count to calculate their routing tables.

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.

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.

Preference

Metric

Next-hop

Cost

136.160.17.128/25

136.160.17.192/26

136.160.17.192/27

136.160.17.192/28

The primary purpose of TCP is to provide reliable communications between application services.

The primary purpose of TCP is to provide unreliable communications between application services

The primary purpose of TCP is to provide IP routing between application services.

The primary purpose of TCP is to define the correct format for the application layer such as JPEG or HTML.

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.

Specify authorization information to control access to the router.

Define an IP address for the CPM Ethernet port.

Initialize the hardware.

Set the date/time for the system.

Controls distribution of IP addresses.

Simplifies protocol functionality.

Isolates changes in lower layers from upper layers.

Increases protocol operational efficiencies.

Layering adds to the fragmentation of the data

The provider edge (PE) switch adds an additional field called a PE tag to the customers Layer 2 data.

The PE switch replaces the customers VLAN tag with a carrier-assigned tag.

The PE switch adds a second VLAN tag to identify the customers traffic on the carriers network.

The PE switch assigns a customer-specific priority label to the customers traffic.

IP routing.

IP protocol.

IP encapsulation.

IP tunneling.

Ctrl-z

Ctrl-c

Esc

Shift-Page Down

Echo Request.

Destination Unreachable.

Router redirect.

Echo Reply.

If dynamic-cost is enabled it will adjust the cost for routing protocols such as OSPF.

If dynamic-cost is not enabled it will adjust the cost for routing protocols such as OSPF by dividing the link bandwidth by 2.

The LAG will be changed to an operational state of 'down'.

The LAG will function with only 2 ports. There will be no change to the routing metric.

The internet emerged in the commercial world in the 1980’s following the US military’s adoption of TCP/IP in 1983.

The internet evolved from a military to a research to a commercial based network.

The internet remained primarily a research based network and was only commercially adopted in 2000 when the world wide web was conceived.

Internet service providers provided the services necessary for military based networks to evolve into research and education based networks.

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

OSPF

BGP

X.500

IS-IS

Ethernet

1

2

3

4

Graphic User Interface (GUI).

Node Management Terminal Interface (NMTI).

Command Line Interface (CLI).

All of the above.

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.

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