[Free] 2017(Oct) EnsurePass Testking Cisco 642-883 Dumps with VCE and PDF 61-70

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2017 Oct Cisco Official New Released 642-883
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Deploying Cisco Service Provider Network Routing (SPROUTE)

Question No: 61

Refer to the exhibit.

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IS-IS adjacency is not established between XR2 and R1. Which action fixes this issue?

  1. unify IS-IS process IDs on each router

  2. configure on R1 under IS-IS is-type level-1-2

  3. configure on R1 under IS-IS area-password CISCO

  4. configure on XR2 under IS-IS under Gi0/0/0/0 address-family ipv4 unicast

Answer: D

Question No: 62

Which RPLs can be used to conditionally advertise a default route based on the prefix

1.1.1.1 being in the routing table?

  1. route-policy RPL_Default_Originate if rib-has-route in (1.1.1.1/32)

    pass else drop endif

    end-policy

  2. route-policy RPL_Default_Originate if rib-has-route in (1.1.1.1/32)

    drop else pass endif

    end-policy

  3. route-policy RPL_Default_Originate if route in (1.1.1.1/32)

    pass else drop endif

    end-policy

  4. route-policy RPL_Default_Originate if not rib-has-route in (1.1.1.1/32)

pass else drop endif

end-policy

Answer: A

Question No: 63

Refer to the PE1 router routing table output exhibit.

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What is causing the i su 10.1.10.0/24 [115/30] via 0.0.0.0, 00:40:34, Null0 entry on the PE1 router routing table?

  1. The PE1 router is receiving the 10.1.10.0/24 summary route from the upstream L1/L2 IS-IS router.

  2. The PE1 router has been configured to summarize the 10.1.10.x/32 IS-IS routes to 10.1.10.0/24.

  3. The 10.1.10.0/24 has been suppressed because IS-IS auto-summary has been disabled on the PE1 router.

  4. The 10.1.10.0/24 has been suppressed because of a route policy configuration on the PE1 router.

  5. The 10.1.10.0/24 has been suppressed because the more specific 10.1.10.x/32 IS-IS routes have been configured to leak into the IS-IS non-backbone area.

Answer: B Explanation:

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C:\Documents and Settings\user-nwz\Desktop\1.JPG

Question No: 64

Refer to the exhibit.

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XR1 must have XR4 as the primary exit point for only the first three subnets received from AS 100 and may not impact the rest of the subnets. Which configuration on XR1 is correct?

  1. prefix-set PREFER 100.100.100.0/30 le 32 route-policy LP

    if destination in PREFER then set local-preference 200 endif

  2. route-policy LP

    if destination in (100.100.100.0/30 le 32) then set local- preference 200 else pass endif

  3. prefix-set PREFER 100.100.100.0/29 le 32 route-policy LP

    if destination in PREFER then set local-preference 200 else pass endif

  4. route-policy LP

if destination in (100.100.100.0/29 le 32) then set local preference 200 else set local-preference 100 endif

Answer: B

Question No: 65

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There are how many IS-IS area(s) defined in this network Scenario?

  1. 1

  2. 2

  3. 3

  4. 4

Answer: C

Explanation: #show clns

Question No: 66

When redistributing routes into OSPF, which kind of routes will be redistributed by default on Cisco IOS XR Software but will not be automatically redistributed by default on Cisco IOS Software and Cisco IOS XE Software?

  1. Type 1 external routes

  2. Type 2 external routes

  3. subnetted routes

  4. /32 host routes

  5. tagged static routes

Answer: C Explanation:

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C:\Documents and Settings\user-nwz\Desktop\1.JPG

Question No: 67

What is the default OSPF seed metric and type?

  1. 10 and E1

  2. 10 and E2

  3. 20 and E1

  4. 20 and E2

  5. 0 and E1

  6. 0 and E2

Answer: D

Question No: 68

Which three BGP configuration groupings are supported on Cisco IOS XR Software? (Choose three.)

  1. peer-group

  2. af-group

  3. bgp-group

  4. session-group

  5. neighbor-group

  6. as-group

Answer: B,D,E Explanation:

鈥ommands relating to a peer group found in Cisco IOS Release 12.2 have been removed from Cisco IOS XR software. Instead, the af-group, session-group, and neighbor-group configuration commands are added to support the neighbor in Cisco IOS XR software:

-The af-group command is used to group address family-specific neighbor commands within an IPv4 or IPv6 address family. Neighbors that have the same address family configuration are able to use the address family group name for their address family- specific configuration. A neighbor inherits the configuration from an address family group by way of the use command. If a neighbor is configured to use an address family group, the neighbor will (by default) inherit the entire configuration from the address family group.

However, a neighbor will not inherit all of the configuration from the address family group if items are explicitly configured for the neighbor.

-The session-group command allows you to create a session group from which neighbors can inherit address family-independent configuration. A neighbor inherits the configuration from a session group by way of the use command. If a neighbor is configured to use a session group, the neighbor (by default) inherits the session group#39;s entire configuration. A neighbor does not inherit all the configuration from a session group if a configuration is done directly on that neighbor.

-The neighbor-group command helps you apply the same configuration to one or more neighbors. Neighbor groups can include session groups and address family groups. This additional flexibility can create a complete configuration for a neighbor. Once a neighbor group is configured, each neighbor can inherit the configuration through the use command. If a neighbor is configured to use a neighbor group, the neighbor (by default) inherits the neighbor group#39;s entire BGP configuration.

-However, a neighbor will not inherit all of the configuration from the neighbor group if items are explicitly configured for the neighbor. In addition, some part of the neighbor group#39;s configuration could be hidden if a session group or address family group was also being used.

Question No: 69

How can you prevent multihomed customers with connections to two service providers from acting as a transit AS?

  1. Enable BGP synchronization on all the customer routers

  2. Use MED to influence the inbound traffic from the ISPs

  3. Use static routing to the ISPs

  4. Use an AS-path access-list to filter the BGP updates to the ISPs

  5. Use conditional advertisements when sending BGP updates to the ISPs

Answer: D

Question No: 70

When configuring IPv4 and IPv6 IS-IS routing on Cisco IOS XR routers, which three statements are correct? (Choose three.)

  1. By default, a single SPF is used for both IPv4 and IPv6, so the IPv4 and IPv6 topology should be the same.

  2. By default, the IS-IS router type is Level 1 and Level 2.

  3. All IS-IS routers within the same IS-IS area must be configured with the same IS-IS routing process instance ID.

  4. By default, metric-style narrow is used.

  5. By default, the IS-IS interface circuit type is Level 1 and Level 2.

  6. The area IS-IS address-family configuration command is used to specify the IS-IS area address.

Answer: B,D,E Explanation:

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C:\Documents and Settings\user-nwz\Desktop\1.JPG

The default metric style for single topology is narrow metrics. However, you can use either wide metrics or narrow metrics. How to configure them depends upon how single-topology is configured. If both IPv4 and IPv6 are enabled and single-topology is configured, the metric style is configured in the address-family ipv4 stanza. You may configure the metric style in the address-family ipv6 stanza, but it will be ignored in this case. If IPv6 only is enabled and single topology is configured, then the metric style is configured in the address-family ipv6 stanza.

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