What are three characteristics of Gigabit Ethernet? (Choose three.)

support for half-duplex and full-duplex

support for full-duplex only

utilizes CSMA/CD

supports legacy IEEE 802.3 Ethernet frame format

supports minimum and maximum IEEE 802.3 frame size

Gigabit Ethernet architecture divides Layer 1 into which two sublayers?

TDM and DWDM

PDM and PHY

MAC and LLC

PMD and PCS

Utilizing wavelength multiplexing, how many individual wavelengths can one fiber ring support?

1 lambda at OC-48 speed

18 lambdas at OC-48 speed

36 lambdas at OC-192 speed

48 lambdas at OC-192 speed

What is true of DWDM and CWDM?

DWDM utilizes multiple light wavelengths over a single optical fiber, whereas CWDM utilizes single light wavelengths over multiple optical fibers.

CWDM utilizes multiple light wavelengths over a single optical fiber, whereas DWDM utilizes single light wavelengths over multiple optical fibers.

Both DWDM and CWDM utilize multiple light wavelengths over a single optical fiber.

Both DWDM and CWDM utilize single light wavelengths over multiple optical fibers.

Which service offered by a metro Ethernet service provider offers Gigabit connectivity over a shared multipoint metro LAN?

High-speed Internet access

High-speed Virtual Private Network (VPN) access

Transparent LAN services

Point-to-point LAN services

Which service offered by a metro Ethernet service provider offers Gigabit connectivity over a shared multipoint metro LAN?

High-speed Internet access

High-speed Virtual Private Network (VPN) access

Transparent LAN services

Point-to-point LAN services

Which technology provides strong QoS and statistical multiplexing of bursty data traffic through existing support in the IP protocol?

point-to-multipoint shared

point-to-point dedicated

QoS

IP+Optical

What are three characteristics of Dynamic Packet Transport? (Choose three.)

replaces the complexity of SONET/SDH with the simplicity of Ethernet

bandwidth allocation is fixed

can utilize legacy time-division multiplexing (TDM) nodes

reduces the configuration management requirements

utilizes statistical time-domain multiplexing

maps the logical topology into a physical topology

A metro network is segmented into which three areas? (Choose three.)

customer premises equipment (CPE)

central office equipment (COE)

aggregation point for forwarding

aggregation point for replying

POP used to interconnect to other networks

TLS used to interconnect to other networks

What three benefits does Transparent LAN Services provide for connecting customers requiring extended wide-area bandwidth? (Choose three.)

scalable

secure

established technology

economical

complete autonomy

TLS provides native VLAN services over the WAN without the need to implement which of the following?

DWDM

ATM

SONET

POS

Which technology allows customers to extend their logical network topology across wide geographic areas?

DWDM

IP+Optical

VLAN tunneling

SONET

ATM

What are two standards for interfacing Operating Telephone Company (OTC) optical networks? (Choose two.)

Sonet

SDH

POS

SRP

WDM

Which technology replaces the complexity of SONET/SDH with the simplicity of Ethernet, but retains the main benefits of SONET/SDH?

DPT

WDM

DLP

DWDM

Which two optical technologes employ multiple light wavelengths to transmit signals over a single optical fiber? (Choose two.)

Sonet

DWDM

POS

CWDM

ATM

10 Gigabit Ethernet shares which of the following IEEE 802.3 Ethernet characteristics?

Media Access Control (MAC) protocol

IEEE 802.3 CSMA/CD algorithm

Ethernet frame format

half/full duplex operation

minimum and maximum frame size.

Why would the implementation of QoS benefit customers using private shared bandwidth services to connect a distributed campus network? (Choose two.)

It allows the customer to extend their own QoS model across the WAN network to other sites.

It provides efficient transport of time-division multiplexing (TDM), packets, cells, and frames through the reduction of packet overheads.

QoS is used to prevent one shared bandwidth node from starving the bandwidth from others.

It allows customers to maintain existing Ethernet/IP technologies layered directly onto the optical layer.

Each customer is completely segmented from the others, allowing complete autonomy.

How does DWDM segment existing fiber infrastructures to allow multiple service offerings?

With VLAN tagging, a tunnel can separate customers over a single trunked fiber link.

Through wavelength multiplexing, a service provider can offer virtual dark fiber to customers.

Through multiplexed clocking, separate channels can be defined as subinterfaces for different customer networks.

With native quality of service (QoS) support, customers have the advantage of advanced traffic shaping and flexibility in physical network design.

A customer has a need for a large bandwidth connection between multiple geographically dispersed sites as shown in the figure. Which TLS solution will interconnect the two remote sites on the right with the central site on the left?

point-to-multipoint subinterfaces

point-to-point

point-to-multipoint shared

point-to-point shared

What technology is used to prevent one shared bandwidth node from starving the bandwidth from others?

point-to-multipoint shared

point-to-multipoint dedicated

point-to-point dedicated

point-to-point shared

QoS

IP+Optical

Which Transparent LAN Services Architecture offers guaranteed bandwidth to the customer?

IP+Optical

point-to-point dedicated

point-to-multipoint shared

SONET/SDH

What is the base level signal at 51.84 Mbps for SONET?

STS-1

STS-3

STS-3c

STM-1

What is the base level signal at 155.52 Mbps for SDH?

STS-1

STS-3

OC-1

STM-1

Which three elements are considered in-band security access risks? (Choose three.)

con0

HTTP

aux0

modems

TFTP

vty ports

Which three elements are considered out-of-band security access risks? (Choose three.)

con0

HTTP

aux0

modems

TFTP

vty ports

Which network area would be summarized as the layer that provides policy-based connectivity?

the core layer

the LAN

the distribution layer

the access layer

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On a Catalyst 6500 series switch, what is the default bandwidth on the forwarding bus?

8 Gbps

16 Gbps

32 Gbps

64 Gbps

How many SPAN sessions can be configured on a switch?

1

2

4

8

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The network administrator configures a physical port that belongs to an EtherChannel group as a SPAN source port. Which state will the port reflect?

standby

up

static

down

offline

Which Cisco IOS release allows trunk ports to be configured as destination ports?

releases starting with 9.1

releases starting with 10.1

releases starting with 11

releases starting with 12.1

During authentication initiation, what happens if an 802.1X-enabled client does not receive an EAP-request/identity frame after three attempts to start authentication?

The client continues to send EAP-request/identity frames to the switch.

The client refuses any further frames.

The client sends frames as if the port is in the authorized state.

The client determines that the port is switched to the unauthorized state.

Which router commands can a user issue when granted privilege level 0? (Choose two.)

help

ping

configure

disable

show

How many port ACLs can be applied to a Layer 2 switch interface?

1

2

4

10

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When running port security, what is the default maximum number of secure MAC addresses allowed before a port shuts down?

56

99

128

168

Which port security violation modes can be used on Cisco Catalyst switches 2950, 3550, and 6500? (Choose three.)

default

maximum

protect

restrict

shutdown

secure

Which Cisco IOS data encryption software images support SSH server and SSH client? (Choose two.)

RSA

DES

RTS

3DES

TFTP

What should be done to manage configuration settings efficiently on a large number of similar devices?

Enable service password-encryption on switches and routers.

Assign a single locally defined management user name and password.

Load all access layer configurations on a management laptop.

Use a TFTP server to store and load configuration scripts.

Which layer is used to enforce VLANs, access lists, filters, and also controls traffic by using port security?

access

core

distribution

enterprise edge

What are two outcomes of using the username name secret passwordcommand? (Choose two.)

A user is assigned only user-mode access.

The IOS stores a username and assigns an associated password.

A user will only have access from a defined IP host or subnet.

The password is automatically masked using strong encryption.

A user is assigned global-configuration mode access only.

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Which mode is used to pass data traffic to or from non-fabric enabled modules and between fabric-enabled and non-fabric-enabled modules?

truncated mode

bus mode

compact mode

asymmetric mode

Which password is in the recommended format for a router configured for remote management using a modem?

T72%aR!3

ROUTER23

NannoPlankton

MANAGERTOM

With QoS, which two layers can support traffic classification? (Choose two.)

data link

physical

network

transport

application

session

What link speeds would cRTP be used on?

links higher than 1.544 Mbps

links lower than 768 Kbps

links higher than 768 Kbps

links that are dialup

Where should traffic be classified in order for QoS to be effective within the network?

at the ingress point of the network

at the egress point of the network

end-to-end within a network

at the core within a network

How should QoS be implemented to be effective?

on the input side within a network

on the output side within a network

end-to-end within a network

at the core within a network

Which command is used to attach a traffic policy to an interface?

class-map

policy-map

service-policy

access-group

Which elements are contained in a traffic policy? (Choose three.)

class-default

policy name

traffic class

bandwidth affected

QoS policies

the traffic map

Which function is central to Cisco's implementation of IOS based QoS solutions?

Class-map

Policy-map

MQC

COS

Which QoS values used for traffic marking cannot be used simultaneously? (Choose two.)

CoS

ToS

IP DSCP

ISL

IP Precedence

What is the maximum one-way latency QoS requirement for streaming video?

10-20ms

100-200ms

150-200ms

150-250ms

Which three QoS quality factors are directly affected by voice? (Choose three.)

duplex

loss

delay

bandwidth

delay variation

traffic shaping

Which class of traffic is the best-effort and default class for QoS data?

gold

silver

platinum

bronze

Which technologies are used to create high availability in a network design? (Choose three.)

HSRP

minimal jitter

redundancy

dynamic routing protocol

small delays

Which three services does QoS offer in order to provide an improved and more predictable network service? (Choose three.)

dedicated bandwidth

jitter reduction

prioritization of traffic

redundancy

traffic shaping

Which relative priority level suggests Guaranteed-Bandwidth for data transmission?

Gold

Silver

Bronze

Lead

Which type of delay is caused by encoding and serialization?

fixed delay

variable delay

bandwidth delay

round-trip delay

Why is the PBX platform considered adequate for voice only?

PBX is a wave-division multiplexed system built on 64 kbps time slots.

ISDN, the next high-speed desktop technology, is not well suited to be terminated on the PBX.

PBX supports variable 64 kbps bandwidth increments carried across a packet-switched infrastructure.

Data desktops are typically connected at speeds of 10 or 100 Mbps.

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Which protocol communicates between routers and ATM switch groups to detect device failures and initiates automatic reroutes within one second of failover time?

Hot Standby Router Protocol (HSRP)

Virtual Router Redundancy Protocol (VRRP)

Simple Server Redundancy Protocol (SSRP)

ATM Link Redundancy Protocol (ALRP)

Which standard enables videoconferencing over existing IP data networks?

H.230

H.322

H.320

H.323

Which Cisco AVVID Solution delivers intelligent call routing, network-to-desktop computer telephony integration (CTI), and multimedia contact management to contact center agents over an IP network?

IP Telephony

Content Networking

IP Contact Center

Storage Networking

Which type of traffic is transmitted from one sender and accepted by a select group of receivers simultaneously?

broadcast

unicast

multicast

directed broadcast

What is the default behavior of a router when dealing with multicast packets?

Floods multicast traffic within each broadcast domain.

Does not forward multicast traffic.

A multicast routing protocol is enabled by default, allowing routers to forward multicast traffic.

Forwards only public multicast traffic, such as the Network Time protocol.

Why is it that bridges and switches cannot dynamically learn where to foward multicast traffic?

Multicast addressing occurs at Layer 2 only.

Multicast addressing occurs at Layer 3 only.

A multicast address never appears as a source address.

A multicast address never appears as a destination address.

How is a Layer 2 multicast address assigned to an application?

A network administrator assigns the Layer 2 multicast address.

The Layer 2 multicast address is calculated from the Layer 3 multicast address.

Each device associates its Layer 2 MAC address with the Layer 3 multicast address.

For multicast traffic, the Layer 2 address is all Fs.

Which range of multicast addresses is reserved for network protocols on a local network segment?

224.0.0.0 through 224.0.0.255

224.0.0.0 through 224.255.255.255

224.0.0.0 through 239.255.255.255

239.0.0.0 through 239.0.0.255

Which type of multicast packets should never be forwarded by a router?

Reserved Link Local Addresses

Globally Scoped Address

Limited Scope Addresses

GLOP Addressing

Under which two conditions will a device issue an IGMP membership report? (Choose two.)

as an unsolicited report to the router when the device first intends to receive a multicast stream

as a solicited report to the multicast group when the device first intends to receive a multicast stream

in response to a membership query from the router

in response to a membership query from another host within the multicast group

as an unsolicited report to the router periodically to ensure multicast streams will continue to be forwarded

What is one message type added in IGMP Version 2 that is not found in IGMP Version 1?

0x11-Membership query

0x12-Version 2 add member

0x16-Version 1 membership report

0x17-Leave group

What keyword(s) enable a switch to remove a port from the IP multicast group instantly when it detects an IGMPv2 leave message on that port?

igmp snooping

immediate-leave

learn cgmp

leave-message

What must be configured in order for CGMP to operate correctly on a switch?

ip igmp snooping must be enabled on the connected router interface

ip cgmp must be enabled on the connected router interface

ip igmp snooping vlan vlan-id must be enabled on the switch

ip cgmp enable must be enabled on the switch

Delays caused by codecs are considered what type of delay?

propagation delay

jitter

handling delay

What are the main components of HSRP? (Choose three.)

active router

standby router

secondary router

BVI router

virtual router

middle router

output delay

Which design model maintains the Cisco CallManager or Cisco CallManager cluster at each site, supports a maximum of 10,000 IP phones per cluster, and utilizes PSTN for networking multiple sites and for all external calls?

multiple sites with Distributed Call Processing

multiple sites with Independent Call Processing

multi-site IP WAN with Centralized Call Processing

single-site model

Which command will enable multicast routing?

Router(config)# routing multicast

Router(config-if)# ip mroute-cache

Router(config-if)# enable ip multicast boundary

Router(config)# ip multicast-routing

Which multicast routing protocol, supported by Cisco, is protocol independent and utilizes existing unicast routing tables to perform RPF instead of maintaining a separate multicast route table?

PIMDM

DVMRP

MOSPF

CBT

Which IP multicast routing protocols rely on periodic flooding of the network with multicast traffic, utilize only shortest-path trees, and employ a push principle to construct multicast spanning trees and to forward packets?

sparse-mode

dense-mode

distance vector

link-state

Where should traffic classification be performed?

as close to the source as possible

as close to the destination as possible

at the core layer

at the default gateway

Which command is used to instruct the switch port to use 802.1P priority tagging for voice traffic and to use the default native VLAN to carry all traffic?

Switch(config-if)# switchport voice vlan vlan 0

Switch(config-if)# switchport voice vlan dot1p

Switch(config-if)# switchport voice vlan tagged

Switch(config-if)# switchport voice vlan 802.1P

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What are the states in which an HSRP enabled router can exist?

initial, listen, learn, block, and forward

initial, learn, listen, speak, standby, and active

initial, learn, listen, forward, standby, and speak

initial, learn, speak, standby, and active

Which three components make up the HSRP virtual router MAC address? (Choose three.)

vendor ID

group ID

virtual ID

HSRP code

last octet of the IP address of the active router converted to hex

last octet of the IP address of the standby router converted to hex

When redundant supervisor engines are implemented, which command displays the active supervisor module?

show supervisor

show active

show module

show slot

What are the responsibilities of the active supervisor module when redundancy is configured? (Choose two.)

protocol selection

system bus

receiving packets

all line cards

system overload conditions

When implementing redundant power supplies, which features are reenabled automatically? (Choose two.)

redundancy

software configuration

backup mode

load splitting

load sharing

What is the goal of IP routing redundancy?

to provide alternate paths

to provide a network gateway

to protect against first-hop failures

to establish a backup path

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Which protocol will allow a host to dynamically find an alternative router when the host no longer receives hello messages?

Proxy ARP

ICMP

IRDP

VRRP

HSRP

Which command will configure IRDP routing?

enable ip irdp

enable irdp

ip irdp enable

ip irdp

Which command is used to troubleshoot IRDP?

debug ip irdp

debug ip icmp

debug irdp

debug icmp

show icmp

show irdp

Which two protocols enable two or more devices to work together in a group, sharing a single virtual IP address? (Choose two.)

HRRP

HSRP

VRRP

VSRP

IRDP

ICMP

Which protocol is an alternative to having both multilayer switch feature cards (MSFC) in a chassis active at the same time?

DFC

SRM

CEF

RFC

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Even with the use of equipment from multiple vendors, which protocol ensures immediate and transparent recovery from first-hop failures?

IRDP

HSRP

VRRP

GLBP

A local host utilized proxy ARP to obtain the MAC address of Router A. Router B is a redundant router on the same local segment. If Router A were to fail, how long would it take the local host to learn the new path through Router B?

immediately, the local host should already be aware of Router B

when the local host sends a new hello timer, default every 30 seconds

when Router B transmits the routing table

when the local host sends a new MAC request

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How does an HSRP enabled router update its holdtime?

group numbers

hello messages

priority settings

standby commands

What is the default holdtime for a HSRP enabled router?

5 seconds

10 seconds

30 seconds

90 seconds

As a general rule, what should the holdtime be set to on a HSRP enabled router?

the same amount of time as the hellotime

less than the hellotime

greater than or equal to three times the value of the hellotime

greater than or equal to the group number

HSRP routers on a VLAN communicate with each other to designate router states. Which three router states can be designated? (Choose three.)

active

adjacent

standby

passive

init

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Which technology used by newer Cisco devices enables packet switching to circumvent the route processor altogether, therefore providing wire speed routing of packets?

MLS

CEF

PortFast

BackboneFast

optimum-switching

Which type of flow mask is used when the MLS-RP interface has an extended access list?

ip-flow

destination-ip

source-ip

source-destination-ip

Which type of flow mask is used when the MLS-RP interface has a standard access list?

ip-flow

destination-ip

source-destination-ip

source-ip

When host A initiates an FTP file transfer to Host B, which kind of entry is created for a flow in the content-addressable memory of Switch A?

access list

MLS-RP

multicast entry

MLS entry

MLS-SE

Which method is used by MLSP to inform the MLS-SE of the MLS-RP MAC addresses used on different subnets?

multicast

unicast

anycast

broadcast

Host A and Host B are on different VLANs. Once the MLS-SE has learned the destination MAC addresses and VLANs through MLSP, what type of packet will be the first packet sent in the data stream from Host A to Host B?

ip-flow

candidate packet

enable packet

hello packet

FIB

CEF implementation adds support to the Catalyst 6000 for which feature?

AppleTalk forwarding

IPX forwarding

access control lists

multiple VTP domains

Which module provides the connectivity to the switching fabric?

policy feature card

supervisor base board

inline-power module

multilayer switching feature card

route switch module

Which component provides an array of ASICs to enable all hardware based forwarding?

policy feature card

multilayer switching feature card

supervisor base board

NetFlow feature card

CEF relies on which algorithm?

spanning-tree algorithm

shortest path first

longest-match forwarding algorithm

DUAL

Which three tables are used by CEF? (Choose three.)

forwarding information base

adjacency table

topology table

NetFlow table

accounting database

What is the first step in the CEF forwarding process?

The forwarding engine performs a lookup on the destination MAC address.

The ASICs perform the input security ACL lookups.

The ASICs receive the packet headers from the data bus.

The ASICs perform any input QoS/ACL lookups.

What command is used to add an IP MLS interface to a VTP domain?

mls rp domain

vtp domian

mls rp ip domain

mls rp vtp-domain

Which command enables MLS to cooperate with ACLs?

mls rp ip list

mls rp ip input-acl

mls rp ip acl

mls rp ip access-list

Which command enables MLS on a Cisco 2926G switch?

set mls enable

mls rp ip

set mls rp ip

mls rp ip enable

What command specifies the external router(s) participating in MLS?

mls rp ip

set mls ip

set mls include

mls ip rp

At what time interval is the MLS entry aged out by default?

8 seconds

64 seconds

128 seconds

256 seconds

What command purges all existing MLS cache entries and affects the number of active entries on the MLS-SE?

clear ip mls

set mls flow

delete mls entry

clear mls-cache

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Which situations require configuration of MLS on a switch? (Choose three.)

when RSFC is installed in the Catalyst 5000 chassis

when an external router is the MLS-RP

when NetFlow Data Export(NDE) must be enabled

when RSM is installed in the Catalyst 5000 chassis

when packet threshold values must be changed

What would be one indication that IP routing is disabled?

the presence of the command ip routing disabled in the running-configuration

the absence of Layer 3 VLAN information and IP addressing information after the show ip interfaces brief command has been issued

the presence of directly connected networks after the absence of routes has been learned via a dynamic routing protocol

the absence of directly connected networks after the show ip route command is issued

What is one advantage of an InterVLAN routing configuration that uses dot1q trunking to carry traffic for multiple VLANs through a single physical interface on an external router?

Fewer physical interfaces are required on the router.

There is a high-speed connection to each VLAN.

There is more bandwidth available to each VLAN than is available in a multiple router interface configuration.

A router-on-a-stick configuration is much more efficient than using a route processor.

In order to optimize performance, what is true regarding the distribution layer switch in an InterVLAN routing scenario?

The distribution layer switch should have spanning tree disabled for each connection to the distribution layer router.

The distribution layer switch should provide Layer 2, 3, and 4 functionality.

The distribution layer switch should have multiple connections to one or more external routers for load balancing.

The distribution layer switch should be the root of the spanning tree for each VLAN that is routed by the distribution router.

What is the most common method of configuring InterVLAN routing on a Layer 3 switch?

Configure the switch physical interface so that the router will have an interface in each VLAN.

Configure trunking between the router and the switch for each VLAN.

Configure a routing protocol on the Layer 3 switch to include each interface.

Configure the switch virtual interface. The result is that the router will have a virtual interface in each VLAN.

Communication between hosts in different VLANs is not working. Hosts within the same VLAN can reach each other and they can all ping the router interface within their VLANs. Layer 3 configuration on the router appears to be correct. What is one possible cause of this problem?

The gateway address could be misconfigured on the hosts.

The DNS address could be misconfigured on the hosts.

The hosts may not have routing enabled.

The IP address on the hosts could be incorrect.

Which command would be used as the first step in troubleshooting an InterVLAN routing problem?

show ip interface brief

show vlan

show ip protocol

show ip route

show ip routing

The following are the results of the command:

switch#show interface fa0/10 switchport

Name: fa0/10
Switchport: Disabled

What is the most likely cause of the switchport being disabled?

fa0/10 is configured with PortFast.

fa0/10 is configured for trunking.

fa0/10 is configured as a routed port.

fa0/10 is configured as a switchport, but has been administratively disabled.

Which command will confirm that IP routing is enabled on a Layer 3 capable switch?

Switch#show ip interface brief

Switch#show vlan routing

Switch#show vlan

Switch#show ip route

Switch#show ip routing

Which command will display a useful summary of both virtual and routed interfaces?

show vlan

show ip interface

show ip interface brief

show ip int switchport

show ip interface all

Which terms refer to routing capabilities that are integrated within the switch itself? (Choose three.)

Layer 3 switch

Layer 2 switch

backplane switching

route switch module

route processor

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