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Juniper JNCIA-E-series

Number: JN0-120Passing Score: 800Time Limit: 120 minFile Version: 4.0

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Juniper JN0-120

Juniper Networks Certified Internet Associate (JNCIA-E)

Version: 4.0Juniper JN0-120 Exam

Topic 1, Volume ADownloaded by BAWLSDEEP on Feb 11, 2013. Broken into 4 exams.

Exam A

QUESTION 1Which software process sorts client login requests and assigns them to a virtual router for RADIUSservice?

A. PPPB. AAAC. LCPD. NCP

Correct Answer: BSection: (none)Explanation

Explanation/Reference:Explanation:

QUESTION 2What is the purpose of the magic number in an LCP negotiation?

A. It is used to detect loops.B. It is an interface identifier.C. It selects a compression algorithm.D. It specifies the transmission media.

Correct Answer: ASection: (none)Explanation


QUESTION 3Which configuration command allows the router to utilize a RADIUS server to authenticate incoming Telnetusers?

A. aaa new-modelB. aaa telnet loginC. telnet authentication loginD. authentication telnet login



QUESTION 4In a PPP over ATM service offering, what is a valid method for assigning an address to the ERX EdgeRouter?

A. DHCP assigned addressesB. RADIUS assigned addressesC. IP numbered with a loopback referenceD. IP unnumbered with a loopback reference

Correct Answer: D

Section: (none)Explanation


QUESTION 5What is a method by which an IP interface can be assigned to a virtual router in a PPP over ATMenvironment?

A. policy listB. RADIUS VSAC. classifier ACLD. LCP negotiation



QUESTION 6What are the two well-known UDP ports used by RADIUS accounting servers? (Choose two.)


A. 1645B. 1646C. 1812D. 1813

Correct Answer: BDSection: (none)Explanation


QUESTION 7In a DSL network providing PPP over Ethernet service, which device provides the client's IP address?

A. DSLAMB. ATM switchC. Ethernet switchD. Broadband RAS

Correct Answer: DSection: (none)Explanation


QUESTION 8A user is connected on a DSL line and is using a PPP over Ethernet service. Which network deviceencapsulates the datagram inside of an ATM header?

A. DSLAMB. DSL modemC. ERX Edge RouterD. customer workstation



QUESTION 9Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?

A. The ERX router sends an Active Discovery Offer message.B. The ERX router sends an Active Discovery Initiation message.C. The customer device sends an Active Discovery Offer message.D. The customer device sends an Active Discovery Initiation message.



QUESTION 10The ERX Edge Router is configured for PPP over Ethernet without using VLAN tagging. How many PPPover Ethernet major interfaces can be configured per port?

A. 1B. 100C. 2048D. 4096



QUESTION 11What are the two stages of PPP over Ethernet? (Choose two.)

A. PPP Session stageB. PPPoE Search StageC. PPPoE Discovery StageD. PPP Confirmation stage

Correct Answer: ACSection: (none)Explanation


QUESTION 12Which set of commands allows PPPoE dynamic interfaces to use a profile called config-info?

A. profile config-infoauto-configure ppp

B. profile config-infoauto-configure any

C. profile ppp config-infoauto-configure pppoe

D. profile pppoe config-infoauto-configure pppoe



QUESTION 13Which profile configurations allows either PAP or CHAP to be used for authentication?

A. ppp authentication chap papB. pppoe authentication chap papC. ppp authentication chap

ppp authentication papD. pppoe authentication chap

pppoe authentication pap



QUESTION 14What does the ip access-routes configuration command accomplish?

A. It statically places a host route in the routing table.B. It statically associates an IP address with a customer.C. It dynamically creates a host route in the routing table.D. It dynamically assigns an address to the router's interface.

Correct Answer: CSection: (none)Explanation


QUESTION 15With the command atm bulk-config test vc-range 1 3 200 400, what is the correct interpretation of thenumeric values following the vc-range?

A. vpi 1 vci 200, vpi 3 vci 400B. vpi 1 through 3, vci 200 through 400

C. vpi 1 vci 200 through 400, vpi 3 vci 200 through 400D. vci 1 through 3, vpi 200 through 400



QUESTION 16Which configuration command dynamically detects and configures a PPPoA interface?

A. auto-configure ipB. auto-configure pppC. auto-configure pppoeD. auto-configure bridgedethernet



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QUESTION 17Which command parameter configures a password of connection-to-lac for an L2TP tunnel on an LNS?

A. l2tp password connection-to-lacB. local password connection-to-lacC. tunnel password connection-to-lacD. server password connection-to-lac



QUESTION 18Which statement describes the function of the LNS in a L2TP environment?

A. It initiates both the PPP session and the tunnel.B. It initiates the PPP session and terminates the tunnel.C. It terminates the PPP session and initiates the tunnel.D. It terminates the PPP session and terminates the tunnel.



QUESTION 19Which sequence of messages demonstrates the communications between the LAC and LNS when theyestablish an L2TP session?

A. Incoming Call Reply, Incoming Call Request, Incoming Call ConnectedB. Incoming Call Reply, Incoming Call Connected, Incoming Call RequestC. Incoming Call Request, Incoming Call Reply, Incoming Call ConnectedD. Incoming Call Request, Incoming Call Connected, Incoming Call Reply



QUESTION 20Which CLI command displays the active L2TP sessions on an LAC?

A. show subscriberB. show l2tp tunnelC. show l2tp sessionD. show tunnel session



QUESTION 21What is the functionality of L2TP in a BRAS environment?

A. It tunnels DHCP requests to the LNS.B. It provides access for analog modem users.C. It provides RFC 2547 VPN services to the user.D. It tunnels a PPP session across an IP backbone.



QUESTION 22Which L2TP protocol packet is sent by the LAC to establish the control connection (tunnel)?

A. Start Tunnel Discovery RequestB. Start Control Connection RequestC. L2TP Control Connection RequestD. L2TP Tunnel Establishment Request



QUESTION 23

Which two statements are true about L2TP tunnel switching? (Choose two.)

A. Requires only one tunnel switching license.B. Requires two licenses, one for inbound and one for outbound sessions.C. Enabled automatically when the BSR is configured as an LAC and LNS.D. Aids in L2TP tunnel scaling.



QUESTION 24Within the L2TP LNS configuration of the router, where is the PPP authentication method specified?

A. profileB. remote hostC. aaa domain-mapD. l2tp destination profile



QUESTION 25Where does the LAC obtain the L2TP tunnel's attributes?

A. profileB. RADIUSC. DHCP serverD. L2TP tunnel map



QUESTION 26 With the following CLI command output performed on an LNS: show l2tp session L2TP session 1/2/3 is upWhat is the meaning of the numeric values in the output?

A. session 1, destination 2, tunnel 3B. destination 1, session 2, tunnel 3C. tunnel 1, session 2, destination 3D. destination 1, tunnel 2, session 3



QUESTION 27Which function enforces logical data throughput rates that are below the actual physical line rate of a port?

A. rate limitingB. data policingC. classificationD. bandwidth limiting



QUESTION 28The ERX Edge Router can utilize which two classifiers? (Choose two.)

A. multi fieldB. policy classifierC. quality of serviceD. behavior aggregate

Correct Answer: ADSection: (none)Explanation


QUESTION 29What is the maximum number of output policy lists that you can attach to an IP interface?

A. 1B. 2C. 128D. 512



QUESTION 30You are experiencing contention in the queue on an egress interface of the router. Which policy actionshould be used for congestion control?

A. markB. colorC. filterD. discard


Exam B

QUESTION 1By default, how does the router handle changes to its operational configuration?

A. Changes are not implemented, but are saved automatically.B. Changes are not implemented and must be written into memory.C. Changes are implemented immediately and saved automatically.D. Changes are implemented immediately, but must be written into memory.



QUESTION 2You would like to configure your PC's IP address of 10.10.0.156 as an FTP host with a username of userand a password of mypass. Which configuration command accomplishes this goal?

A. host userpc 10.10.0.156 ftp user mypassB. host userpc 10.10.0.156 tftp user mypassC. hostname userpc 10.10.0.156 ftp user mypassD. hostname userpc 10.10.0.156 tftp user mypass



QUESTION 3Where should you install the spare line module in a redundancy group?

A. last slot in the chassisB. first slot in the chassisC. lowest numbered slot in the groupD. highest numbered slot in the group


Explanation/Reference:

QUESTION 4Given the following router output, which configuration file will the router use at its next reload?

A. configB. clientqos.cnfC. startup-configD. running-configuration



QUESTION 5What does the SRP distribute to the line modules when a routing table changes?

A. updated RIB-OutB. link-state informationC. an incremental updateD. the complete routing table



QUESTION 6How are the slot groups arranged in the ERX 700 Series Edge Router?

A. Group 1 - Slots 0 &1Group 2 - Slot 2Group 3 - Slot 3Group 4 - Slot 4

B. Group 1 - Slots 2 & 3Group 2 - Slot 4Group 3 - Slot 5Group 4 - Slot 6

C. Group 1 - Slot 2Group 2 - Slot 3Group 3 - Slot 4Group 4 - Slot 5 & 6

D. Group 1 - Slot 3Group 2 - Slot 4Group 3 - Slot 5Group 4 - Slots 6 & 7



QUESTION 7Which protocol is used to transfer files to on the ERX Edge Router? (Choose two.)

A. SCPB. FTPC. RCPD. TFTP



QUESTION 8You would like to install an OC-48c line module in an ERX 1440 Edge Router. Which slots can support thisconfiguration?

A. 0 and 1B. 1 and 2C. 2 and 3D. 3 and 4



QUESTION 9What are two ways that IP datagrams are passed from the ingress line module to the egress line module?(Choose two.)

A. over an ATM PVCB. over a FastEthernet busC. over a Gigabit Ethernet busD. over high speed serial bus



QUESTION 10Which service does the ERX Edge Router support with a virtual router?

A. voice over IPB. wholesale servicesC. IP quality of serviceD. SNMP management



QUESTION 11Your ERX router is supporting 100 virtual routers. A specific line module supports IP interfaces in 5 virtualrouters. How many routing tables are maintained on that module?

A. 0B. 1C. 5D. 100



QUESTION 12Which configuration command creates a virtual router called isp-1?

A. virtual-router isp-1B. virtual-router ISP-1C. virtual-router VR isp-1D. virtual-router VR ISP-1



QUESTION 13You would like to configure an ATM PVC with a virtual circuit identifier of 33 on virtual path 0. The PVCshould use an unspecified bit rate and be encapsulated in the AAL5SNAP format. Which commandaccomplishes this goal?

A. atm pvc 0/33 aal5snapB. atm pvc 33 0 33 aal5snap

C. atm pvc 0/33 aal5snap ubrD. atm pvc 33 0 33 aal5snap ubr



QUESTION 14Which two forms of DSL connectivity provide the same bandwidth in both directions? (Choose two.)

A. ADSLB. HDSLC. SDSLD. RADSL

Correct Answer: BCSection: (none)Explanation


QUESTION 15Which protocol is used between the RAS and the authentication server in a narrowband networkenvironment?

A. RADIUSB. PPP PAPC. MS CHAPD. PPP CHAP



QUESTION 16Which two B-RAS service offerings do not require user authentication? (Choose two.)

A. Routed 1483B. Bridged 1483C. PPP over ATMD. PPP over Ethernet

Correct Answer: ABSection: (none)Explanation


QUESTION 17In a bridged 1483 network, which configuration command allows the ERX Edge Router to advertisecustomer networks into the provider's IGP?

A. redistribute directB. redistribute staticC. redistribute connectedD. redistribute access-internal



QUESTION 18Which two statements are correct concerning DHCP Internal Server in the E-series router? (Choose two.)

A. Provide dynamic IP addresses for DSIs.B. Provide connectivity to DHCP servers on other subnetworks.C. Provide dynamic IP addresses for SRC applications.D. Provide dynamic IP addresses from pools used for PPPoE subscribers.



QUESTION 19Which command configures an ATM PVC in a Bridged 1483 network?

A. atm pvc 33 0 33 aal5snapB. atm pvc 33 0 33 aal5bridgeC. atm pvc 33 0 33 bridge1483D. atm pvc 33 0 33 1483bridge



QUESTION 20A service provider is operating a Routed 1483 network where the ATM PVCs are treated as a large subnet.What is a consequence of this configuration?

A. It burns up IP addresses.B. It conserves IP addresses.C. It results in a smaller routing table.D. Each PVC has a separate /30 subnet.



QUESTION 21

How does the ERX Edge Router interact with an external DHCP server in a Bridged 1483 network?

A. It maintains DHCP leases on behalf of subscribers.B. It initiates DHCP requests on behalf of subscribers.C. It passes DHCP traffic to and from the server; you must configure static host routes.D. It passes DHCP traffic to and from the server and inserts host routes into its routing table.



QUESTION 22A Bridged 1483 service offering is grouping DSL users into a large subnet. What are three characteristics ofthis configuration? (Choose three.)

A. It burns IP addresses.B. It conserves IP addresses.C. A group of PVCs is a subnet.D. It provides a numbered IP address to the ERX.E. It provides an IP unnumbered address to ERX.

Correct Answer: BCESection: (none)Explanation


QUESTION 23In a Routed 1483 network which method of routing is typically employed on the DSL router?

A. staticB. OSPFC. RIPv1D. RIPv2



QUESTION 24How does the ERX Edge Router interact with subscriber IP addresses assigned by an external DHCPserver?

A. It monitors messages from the external server and updates the routing table as needed.B. It maintains the leases for the DHCP server and reassigns addresses to new subscribers.C. It sends keepalives to the subscriber and makes the address available when the subscriber stops

responding.D. It sends keepalives to the subscriber and removes the host route when the subscriber stops

responding.

Correct Answer: ASection: (none)

Explanation


QUESTION 25Which two static routes are typically configured on your router when a Routed 1483 network is groupingATM PVCs into a large subnet? (Choose two.)

A. host routeB. default routeC. customer networkD. ISP's routing domain



QUESTION 26Which configuration command represents a static customer route in a Routed 1483 network?

A. ip route 40.40.0.0 255.255.0.0 172.10.1.2B. ip route 40.40.0.0 0.0.255.255 atm 6/0.33C. ip route 40.40.0.0 0.0.255.255 172.10.1.2D. ip route 40.40.0.0 255.255.0.0 atm 6/0.33



QUESTION 27Which RADIUS configuration command implements a primary/backup scenario for multiple servers?

A. radius algorithm directB. radius algorithm backupC. radius algorithm primaryD. radius algorithm round-robin



QUESTION 28When supporting multiple authentication domains, the domain map must be configured with which twooptions? (Choose two.)

A. hostnameB. static routeC. virtual routerD. loopback reference

Correct Answer: CDSection: (none)Explanation


QUESTION 29Which configuration command controls the source IP address for packets sent to a RADIUS server?

A. radius override nas-ip-addrB. radius source-ip-address 10.13.7.55C. radius update-source-address 10.13.7.11D. radius authentication server 10.13.7.55



QUESTION 30What is a method by which an IP interface can be assigned to a virtual router in a PPP over ATMenvironment?

A. profileB. policy listC. classifier ACLD. LCP negotiation



Exam C

QUESTION 1In a PPP over ATM environment, which two PPP authentication methods are supported by the ERX EdgeRouter? (Choose two).

A. IKEB. PAPC. CHAPD. MSCHAP



QUESTION 2When sending an LCP Configuration Request, what can the ERX Edge Router possibly negotiate?

A. IP addressB. magic numberC. WINS assignmentD. Domain Name Server



QUESTION 3In a PPP over ATM service offering, which two methods are available for dynamically allocating an IPaddress to the customer's device? (Choose two.)

A. DHCPB. RADIUS serverC. local address poolsD. static IP assignment



QUESTION 4In a PPP over ATM service offering, which command inserts the user's host route into the routing table?

A. ip host-routeB. ip access-routesC. ip dynamic host-routeD. ip route access-routes

Correct Answer: BSection: (none)

Explanation


QUESTION 5Which configuration command allows the router to utilize a RADIUS server to authenticate incoming Telnetusers?

A. aaa new-modelB. aaa telnet loginC. telnet authentication loginD. authentication telnet login



QUESTION 6The ERX Edge Router responds to a received PPP over Ethernet Active Discovery Initiation (PADI) withwhich message type?

A. PPPoE Active Discovery OfferB. PPPoE Active Discovery InitiationC. PPPoE Active Session ConfirmationD. PPPoE Active Session Acknowledgment



QUESTION 7Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?

A. The ERX router sends an Active Discovery Offer message.B. The ERX router sends an Active Discovery Initiation message.C. The customer device sends an Active Discovery Offer message.D. The customer device sends an Active Discovery Initiation message.



QUESTION 8You would like to associate a profile called ip-info with a PPPoE interface operating on FastEthernet3/1.200. Which set of configuration commands accomplishes this goal?

A. subinterface fastethernet 3/1.200.1profile ip-info

B. pppoeinterface fastethernet 3/1.200.1profile ip-info

C. pppoe interface fastethernet 3/1.200.1profile ip-info

D. pppoe subinterface fastethernet 3/1.200.1profile ip-info



QUESTION 9In a DSL network, which device terminates the PPP over Ethernet subscriber's two-wire phone line?

A. RASB. DSLAMC. ATM switchD. RADIUS server



QUESTION 10A user is connected on a DSL line and is using a PPP over Ethernet service. Which network device stripsthe ATM header from the datagram and investigates the PPP header?

A. DSLAMB. DSL modemC. ERX Edge RouterD. customer workstation



15

QUESTION 11Which configuration command dynamically detects and configures a Bridged 1483 interface?

A. auto-configure ipB. auto-configure pppC. auto-configure pppoeD. auto-configure bridgedethernet




QUESTION 12Which profile configuration command dynamically creates a host route in the routing table?

A. ip host routesB. ip access-routesC. host routes enabledD. access-routes enabled



QUESTION 13With the CLI command profile atm1483 bulk-config-name test atm-pppoe, which three statements describeits purpose and implementation? (Choose three.)

A. Profile atm1483 must be applied to the atm major interface.B. The bulk-config-name used is test atm-pppoe.C. The bulk-config-name used is test.D. Atm-pppoe is the atm base profile.E. Atm-pppoe is the atm level interface description.

Correct Answer: ACDSection: (none)Explanation


QUESTION 14You are configuring a PPP over Ethernet service offering. Which two types of interfaces can be dynamicallycreated with a profile? (Choose two.)

A. IPB. ATMC. PPPoAD. PPPoE



QUESTION 15Which profile configurations allows either PAP or CHAP to be used for authentication?

A. ppp authentication chap papB. pppoe authentication chap papC. ppp authentication chap

ppp authentication papD. pppoe authentication chap

pppoe authentication pap



QUESTION 16Where are L2TP attributes configured on a LAC?

A. profileB. domain mapC. L2TP tunnel mapD. outgoing interface to the LNS



QUESTION 17Which CLI command is used to examine whether an L2TP tunnel can be established for domain isp1.com?

A. l2tp tunnel test [email protected]. test l2tp session [email protected]. test l2tp tunnel [email protected]. tunnel l2tp test [email protected]



QUESTION 18Which two statements are true about L2TP tunnel switching? (Choose two.)

A. Requires only one tunnel switching license.B. Requires two licenses, one for inbound and one for outbound sessions.C. Enabled automatically when the BSR is configured as an LAC and LNS.D. Aids in L2TP tunnel scaling.



QUESTION 19What is the function of L2TP?

A. It allows L2F tunnels across the network.B. It allows GRE tunnels across the network.C. It allows PPTP tunnels across the network.D. It allows PPP to be tunneled across a network.



QUESTION 20 You are configuring the ERX Edge Router as an LNS in an L2TP network. Which statement is true aboutthe value of the remote host parameter?

A. It must be the same as the server-name parameter on the LAC.B. It must be the same as the client-name parameter on the LAC.C. It must be the same as the remote-hostname parameter on the LAC.D. It must be the same as the tunnel password parameter on the LAC.



QUESTION 21You have 50 subscribers accessing a LAC to connect to ISP1.com. What is the L2TP Control Connectionsand Sessions for the subscribers?

A. A single Control Connection and a single SessionB. A single Control Connection and multiple Sessions (one per subscriber)C. Multiple Control Connections and a single SessionD. Multiple Control Connections and multiple Sessions (one per subscriber)



QUESTION 22Where does the LAC obtain the L2TP tunnel's attributes?

A. profileB. domain mapC. DHCP serverD. L2TP tunnel map



QUESTION 23To dynamically assign host routes on an LNS, where should the ip access-routes command be applied?

A. profileB. remote hostC. aaa domain-mapD. l2tp destination profile



QUESTION 24Which attribute uniquely identifies the L2TP connection between the router and the L2TP network server?

A. Tunnel IDB. Tunnel tagC. Tunnel typeD. Tunnel medium



QUESTION 25When an LNS sends a Start Control Connection Reply to a LAC, which three parameters can be conveyed?(Choose three.)

A. host nameB. Tunnel IDC. IP addressD. DHCP replyE. L2TP version

Correct Answer: ABESection: (none)Explanation


20

QUESTION 26What is the maximum number of input policy lists that you can attach to an IP interface?

A. 1B. 2C. 128D. 512



QUESTION 27Which color does the router assign to packets received at a data rate that is above the committed rate butis below the peak rate?

A. redB. whiteC. greenD. yellow



QUESTION 28You have configured a Classifier Access Control List (CLACL) with multiple match clauses. Each matchclause has multiple defined fields within it. Which two statements describe how the router evaluates thisCLACL? (Choose two.)

A. All fields in each match clause must match.B. All match clauses in the CLACL must match.C. Only a single field in each match clause must match.D. Only a single match clause in the CLACL must match.



QUESTION 29The policy action of color is used for congestion control under which circumstance?

A. congestion in an upstream routerB. congestion in a downstream routerC. contention for queue space on an egress interfaceD. contention for queue space on an ingress interface


Explanation/Reference:

QUESTION 30Which configuration command builds a read-write SNMP community named operator?

A. Snmp-server community operator.

B. Snmp-server operator communityC. Snmp-server community operator rwD. Snmp-server operator community rw


Explanation/Reference:Topic 2, Volume B

Exam D

QUESTION 1Which type of cable is required to access the router's console port from a PC?

A. modemB. EthernetC. null modemD. straight-through



QUESTION 2When using a 40 Gbps switch fabric, how much full duplex bandwidth is available to each slot?

A. 1.25 GbpsB. 1.65 GbpsC. 2.55 GbpsD. 5.00 Gbps



QUESTION 3What does the SRP distribute to the line modules when a routing table changes?

A. updated RIB-OutB. link-state informationC. an incremental updateD. the complete routing table



QUESTION 4Which three CLI modes are available on the ERX Edge Router? (Choose three.)

A. User ExecB. Privileged ExecC. Super User ExecD. Global ConfigurationE. Private Configuration

Correct Answer: ABDSection: (none)Explanation


QUESTION 5The primary line module has failed and the spare line module is now active. What occurs, by default, whenthe primary line module returns to an operational status?

A. The primary line module is inactive for five minutes and then becomes active.B. The primary line module is in standby mode, while the spare line module remains active.C. The primary line module becomes active immediately and the spare line module becomes inactive.D. The primary and spare line modules are active for five minutes, after which time the spare line module

becomes inactive.



QUESTION 6Where does Layer 2 de-encapsulation occur on the ERX Edge Router?

A. on the SRPB. on the I/O adapterC. on the egress line moduleD. on the ingress line module



QUESTION 7Which configuration command enables the router for SNMP?

A. snmp-clientB. snmp-serverC. snmp-client enableD. snmp-server enable



QUESTION 8Which CLI command copies a file called 4-0-0.rel from FTP server userpc to the router?

A. get 4-0-0.rel userpc:4-0-0.relB. get userpc:4-0-0.rel 4-0-0.relC. copy 4-0-0.rel userpc:4-0-0.relD. copy userpc:4-0-0.rel 4-0-0.rel



QUESTION 9Which ERX Edge Router component is responsible for all packet processing and packet forwarding?

A. I/O adapterB. line moduleC. shared memory fabricD. switch route processor



QUESTION 10You would like to configure your PC's IP address of 10.10.0.156 as an FTP host with a username of userand a password of mypass. Which configuration command accomplishes this goal?

A. host userpc 10.10.0.156 ftp user mypassB. host userpc 10.10.0.156 tftp user mypassC. hostname userpc 10.10.0.156 ftp user mypassD. hostname userpc 10.10.0.156 tftp user mypass



QUESTION 11Which two parameters are virtual router specific? (Choose two.)

A. ATM PVCB. static routesC. IP interfacesD. encapsulations



QUESTION 12Beginning with software version 4-0-0.rel, how many virtual routers can be configured on the ERX EdgeRouter?

A. 32B. 128C. 256

D. 1000



QUESTION 13Your ERX router is supporting 100 virtual routers. A specific line module supports IP interfaces in 5 virtualrouters. How many routing tables are maintained on that module?

A. 0B. 1C. 5D. 100



QUESTION 14Which two factors affect the speed of your DSL connection? (Choose two.)

A. line qualityB. distance from the COC. brand of xDSL modemD. number of twisted-pair wires used

Correct Answer: ABSection: (none)Explanation


QUESTION 15What is the maximum attainable bandwidth using an analog data modem?

A. 28.8 kbpsB. 56 kbpsC. 128 kbpsD. 1544 kbps



QUESTION 16You would like to configure an ATM PVC with a virtual circuit identifier of 33 on virtual path 0. The PVCshould use an unspecified bit rate and be encapsulated in the AAL5SNAP format. Which commandaccomplishes this goal?

A. atm pvc 0/33 aal5snapB. atm pvc 33 0 33 aal5snapC. atm pvc 0/33 aal5snap ubrD. atm pvc 33 0 33 aal5snap ubr




QUESTION 17Which two B-RAS service offerings maintain the analog dial-up model with centralized user authentication,authorization, and accounting? (Choose two.)

A. Routed 1483B. Bridged 1483C. PPP over ATMD. PPP over Ethernet

Correct Answer: CDSection: (none)Explanation


QUESTION 18How does the ERX Edge Router interact with subscriber IP addresses assigned by an external DHCPserver?

A. It monitors messages from the external server and updates the routing table as needed.B. It maintains the leases for the DHCP server and reassigns addresses to new subscribers.C. It sends keepalives to the subscriber and makes the address available when the subscriber stops

responding.D. It sends keepalives to the subscriber and removes the host route when the subscriber stops

responding.



QUESTION 19Which configuration command allows the ERX Edge Router to advertise customer networks into theprovider's IGP?

A. redistribute directB. redistribute static

C. redistribute connectedD. redistribute access-internal



QUESTION 20A Bridged 1483 service offering is grouping DSL users into a large subnet. What are three characteristics ofthis configuration? (Choose three.)

A. It burns IP addresses.B. It conserves IP addresses.C. A group of PVCs is a subnet.D. It provides a numbered IP address to the ERX.E. It provides an IP unnumbered address to ERX.

Correct Answer: BCESection: (none)Explanation


QUESTION 21A Bridged 1483 network is grouping DSL users into a single subnet. Where must the CPE workstation'sdefault gateway point?

A. ERX ATM IP addressB. DSL router IP addressC. DSL bridge IP addressD. ERX loopback address



QUESTION 22A service provider is assigning a /30 subnet to each ATM PVC in a Routed 1483 environment.What is a consequence of this configuration?

A. It burns up IP addresses.B. It conserves IP addresses.C. It results in a smaller routing table.D. The group of PVCs is treated as a large LAN.



QUESTION 23

Which configuration command represents a static host route in a Routed 1483 network?

A. ip route 172.10.1.2 0.0.0.0 atm 6/0.33B. ip route 172.10.1.2 255.255.255.0 atm 6/0.33C. ip route 172.10.1.2 255.255.255.255 172.10.1.2D. ip route 172.10.1.2 255.255.255.255 atm 6/0.33



QUESTION 24You are configuring an ATM PVC to support a Bridged 1483 network. What should be applied to the atmpvc command to accomplish this goal?

A. aal5muxB. aal5snapC. aal5routeD. aal5bridge



QUESTION 25In a Bridged 1483 network, which set of configuration commands allows the router to forward requests fromthe PC to an external DHCP server at 1.1.1.1?

A. set dhcp relayset dhcp server 1.1.1.1

B. set dhcp relay agentset dhcp relay 1.1.1.1

C. enable dhcp relayenable dhcp server 1.1.1.1

D. enable dhcp relay agentenable dhcp relay 1.1.1.1



QUESTION 26Your Routed 1483 network is grouping ATM PVCs into a large subnet and has static host routesconfigured. For which purpose does the static route to the customer router provide?

A. It allows for management of the DSL routers.B. It is required for forwarding to the customer networks.C. It allows the end users to forward traffic to the Internet.D. It is required for the DSL router to ARP the provider router.



QUESTION 27What is the proper command to create a DHCP address pool?

A. ip local-poolB. ip local poolC. ip dhcp local poolD. ip dhcp-local pool



QUESTION 28When configuring PPP over ATM interfaces, what does the profile utility accomplish?

A. It binds an interface to a virtual router.B. It allows for dynamic interface creation.C. It assigns a Domain Name Server for a session.D. It identifies the RADIUS server to use for authentication.



QUESTION 29When configuring PPP over ATM, what configuration command determines which virtual router's RADIUSserver will authenticate a client's login?

A. radius authentication server 10.13.7.55B. radius update-source-address 10.13.7.11C. aaa domain-map isp1.com default loopback 1D. aaa subcriber authentication-server 10.13.7.55



QUESTION 30When sending an LCP Configuration Request, what can the ERX Edge Router possibly negotiate?

A. IP addressB. authenticationC. WINS assignment

D. Domain Name Server




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