JN0-643 Enterprise Routing and Switching, Professional ... Routing and Switching, Professional JNCIP-ENT Number : ... C. MPLS EXP D. DSCP ... Practice Exam Juniper@External-BGP# show

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  • JN0-643_Enterprise Routing and Switching, Professional JNCIP-ENT

    Number: JN0-643Passing Score: 800Time Limit: 120 minFile Version: 4.0

    http://www.gratisexam.com/

    Juniper JN0-643

    Enterprise Routing and Switching, Professional

    (JNCIP-ENT)

    Practice TestVersion: 4.0Juniper JN0-643: Practice ExamDownloaded July 20, 2012 from Actual Tests by Bawls Deep

    If your going in go BAWLS DEEP

  • Exam A

    QUESTION 1Click the Exhibit button.

    "Pass Any Exam. Any Time." - www.actualtests.com 66Juniper JN0-643: Practice Exam

    In the exhibit, customers connected to Area 3 must have access to external prefixes received from the datacenter connected to the router in Area 1. These configurations are currently applied to the routers in Area 1:

    {master:0}[edit]

    lab@Area-1-ABR# show protocols ospf

    no-nssa-abr

    ;area 0.0.0.1 {

    nssa;

    interface ge-1/1/1.100;

    }

    {master:0}[edit]

    lab@Area-1-External# show protocols ospf

    area 0.0.0.1 {

    stub no-summaries;

    interface ge-1/1/1.100;

    }

    "Pass Any Exam. Any Time." - www.actualtests.com 67Juniper JN0-643: Practice ExamWhat must you change for these configurations to work?

  • A. Configure the ABR router in Area 1 to support a virtual link.B. Delete no-summary-lsa from the ABR router in Area 1.C. Configure the external router in Area 1 for NSSA.D. Configure the ABR in Area 1 for a default LSA with a default-metric of 10 and no-summaries.

    Correct Answer: CSection: (none)Explanation

    Explanation/Reference:Explanation:

    QUESTION 2Click the Exhibit button.

    Host 1, Host 2, and Host 3 are connected to Switch A on interface ge-0/0/2. Host 1 and Host 2 do not support802.1X. They can authenticate and connect to the Internet. Host 3 was added and it supports 802.1X; however,it is unable to authenticate.

    Referring to the exhibit, how do you allow Host 3 to authenticate to the network but maintain secure access?

    A. Enable fallback authentication for 802.1XB. Disable MAC RADIUS Restrict option on ge-0/0/2C. Disable MAC RADIUS option on ge-0/0/2D. Enable Administrative mode for 802.1X

    "Pass Any Exam. Any Time." - www.actualtests.com 68Juniper JN0-643: Practice Exam

    Correct Answer: BSection: (none)Explanation

    Explanation/Reference:Explanation:

    QUESTION 3Click the Exhibit button.

  • Referring to the exhibit, which statement is true?

    A. The OSPF cost of the interface is 128.B. The authentication type of the area is MD5.C. This interface is part of a stub area.D. This router is the BDR.

    Correct Answer: CSection: (none)Explanation

    Explanation/Reference:Explanation:

    QUESTION 4You have a requirement for a device to provide 20 W of power over Ethernet.

    What meets this requirement?

    A. Bond two standard PoE ports together to achieve 30.8 W of power.B. Install an external redundant power supply in the switch to increase the total power load.C. Select a switch that has PoE+ support.D. Enable LLDP-MED to transfer power from other switches.

    Correct Answer: CSection: (none)Explanation

    Explanation/Reference:Explanation:

    "Pass Any Exam. Any Time." - www.actualtests.com 69Juniper JN0-643: Practice Exam

    QUESTION 5Click the Exhibit button.

    Referring to the exhibit, you want to configure Switch-1 to allow a user on interface ge-0/0/10 to accommodateboth voice and data traffic. Your phones and your switches are LLDP-MED capable.

  • What is the minimal configuration that allows LLDP-MED to autoconfigure your phone's voice VLAN?

    A. set interfaces ge-0/0/10 unit 0 family ethernet-switching port-mode trunk set interfaces ge-0/0/10 unit 0family ethernet-switching vlan members voice_vlan set interfaces ge-0/0/10 unit 0 family ethernet-switchingnative-vlan-id data_vlan set ethernet-switching-options voip interface ge-0/0/10.0 vlan voice_vlan setprotocols lldp-med interface ge-0/0/10.0

    B. set interfaces ge-0/0/10 unit 0 family ethernet-switching port-mode trunk set interfaces ge-0/0/10 unit 0family ethernet-switching vlan members voice_vlan set interfaces ge-0/0/10 unit 0 family ethernet-switchingnative-vlan-id data_vlan set ethernet-switching-options voip interface ge-0/0/10.0 vlan voice_vlan setprotocols lldp interface ge-0/0/10.0

    C. set interfaces ge-0/0/10 unit 0 family ethernet-switching port-mode access set interfaces ge-0/0/10 unit 0family ethernet-switching vlan members data_vlan set ethernet-switching-options voip interface ge-0/0/10.0forwarding-class assured-forwardingset protocols lldp-med interface ge-0/0/10.0

    D. set interfaces ge-0/0/10 unit 0 family ethernet-switching port-mode access set interfaces ge-0/0/10 unit 0family ethernet-switching vlan members data_vlan set ethernet-switching-options voip interface ge-0/0/10.0vlan voice_vlan set protocols lldp-med interface ge-0/0/10.0

    Correct Answer: DSection: (none)Explanation

    Explanation/Reference:Explanation:

    "Pass Any Exam. Any Time." - www.actualtests.com 70Juniper JN0-643: Practice Exam

    QUESTION 6Which three allow classification of traffic on ingress? (Choose three.)

    A. 802.1pB. 802.3adC. MPLS EXPD. DSCPE. rewrite markers

    Correct Answer: ACDSection: (none)Explanation

    Explanation/Reference:Explanation:

    QUESTION 7Click the Exhibit button.

  • In the exhibit, a customer wants to configure an EBGP connection to two different routers in a neighboringautonomous system. The goal of this configuration is to use per-prefix load balancing across both EBGP links.

    Which configuration accomplishes this goal?

    A. {master:0}[edit]"Pass Any Exam. Any Time." - www.actualtests.com 71Juniper JN0-643: Practice ExamJuniper@External-BGP# show protocols bgpgroup External {multihop;peer-as 65543;neighbor 10.10.2.2;neighbor 10.20.2.2;}

    B. {master:0}[edit]Juniper@External-BGP# show protocols bgpgroup External {multipath;peer-as 65543;neighbor 10.10.2.2;neighbor 10.20.2.2;}

    C. {master:0}[edit]Juniper@External-BGP# show protocols bgpgroup External {multihop;local-address 192.168.2.1;peer-as 65543;neighbor 10.10.2.2;neighbor 10.20.2.2;lab@Area-0-ABR# show routing-optionsstatic {route 0.0.0.0 next-hop [ 10.10.2.2 10.20.2.2 ];}autonomous-system 65432;

    D. {master:0}[edit]lab@Area-0-ABR# show protocols bgpgroup External {multihop;local-address 192.168.2.1;peer-as 65543;multipath;neighbor 10.10.2.2;

  • neighbor 10.20.2.2;}lab@Area-0-ABR# show routing-optionsstatic {route 0.0.0.0 next-hop [ 10.10.2.2 10.20.2.2 ];}autonomous-system 65432;

    Correct Answer: BSection: (none)Explanation

    Explanation/Reference:Explanation:

    "Pass Any Exam. Any Time." - www.actualtests.com 72Juniper JN0-643: Practice Exam

    QUESTION 8Click the Exhibit button.

    In the exhibit, User A has authenticated using 802.1X. User B and User C have not authenticated. TheRADIUS server fails.Which configuration allows User A and User B access to the network, but prevents User Cfrom accessing the network?

    A. [edit protocols dot1x authenticator]user@S1# set interface ge-0/0/0.0 server-fail use-cache user@S1# set interface ge-0/0/1.0 server-failpermit user@S1# set interface ge-0/0/2.0 server-fail use-cache

    B. [edit protocols dot1x authenticator]user@S1# set interface ge-0/0/0.0 server-backup if-authenticated user@S1# set interface ge-0/0/1.0server-backup if-authenticated user@S1# set interface ge-0/0/2.0 server-backup deny

    C. [edit protocols dot1x authenticator]user@S1# set interface ge-0/0/0.0 server-backup if-authenticated user@S1# set interface ge-0/0/1.0server-backup permit user@S1# set interface ge-0/0/2.0 server-backup deny

    D. [edit protocols dot1x authenticator]user@S1# set interface ge-0/0/0.0 server-fail permit user@S1# set interface ge-0/0/1.0 server-fail use-cache user@S1# set interface ge-0/0/2.0 server-fail use-cache

    Correct Answer: ASection: (none)Explanation

    Explanation/Reference:

  • Explanation:

    "Pass Any Exam. Any Time." - www.actualtests.com 73Juniper JN0-643: Practice Exam

    QUESTION 9When using PIM-SM in ASM mode, which two events trigger the creation of a shortest-path tree? (Choosetwo.)

    A. Multicast traffic received at the receiver's designated router (DR).B. PIM join received at the receiver's designated router (DR).C. PIM join received at the source designated router (DR).D. PIM registers received by the rendezvous point (RP).

    Correct Answer: ADSection: (none)Explanation

    Explanation/Reference:Explanation:

    http://www.gratisexam.com/

    QUESTION 10Click the Exhibit button.

    Referring to the exhibit, which two statements are true? (Choose two.)

    A. The router has pruned the RPT.B. The router has pruned the SPT only.C. The router has pruned the RPT only.D. The router has pruned the SPT.

    Correct Answer: ADSection: (none)Explanation

  • Explanation/Reference:"Pass Any Exam. Any Time." - www.actualtests.com 74Juniper JN0-643: Practice Exam

    Explanation:

    QUESTION 11A network administrator is configuring CoS on a switch and assigns forwarding classes call-sig and critical tothe same queue number per the configuration below:

    class-of-service {

    forwarding-classes {

    class best-effort queue-num 0;

    class bulk-data queue-num 1;

    class critical queue-num 3;

    class voice queue-num 6;

    class call-sig queue-num 3;

    }

    }

    Based on the configuration, which option prioritizes call-sig traffic over critical traffic?

    A. Assign call-sig and critical to different schedulers.B. Assign call-sig and critical to different scheduler maps.C. Assign a loss priority of high to the packets in the critical forwarding class and configure drop profiles in the

    scheduler configuration.D. Assign a loss priority of high to t