[Free] 2019(Nov) EnsurePass Cisco 642-883 Dumps with VCE and PDF 21-30

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Question No.21

Which option describes the configuration for a Cisco IOS XR OSPF router to give it the highest chances of becoming DR?

  1. ip ospf priority 0 under the OSPF interface statement

  2. ip ospf priority 0 under the OSPF area statement

  3. ip ospf priority 255 under the OSPF interface statement

  4. ip ospf priority 255 under the OSPF area statement

  5. Leave priority unchanged, but assign a high-numbered IP address on a loopback interface.

  6. Leave priority unchanged, but assign a high-numbered IP address on any physical interface.

Answer: C

Question No.22

An EIGRP domain is redistributed into an OSPF NSSA area. On which router would this redistribution occur?

  1. stub border router

  2. summary router

  3. autonomous system boundary router

  4. backbone router

Answer: C

Question No.23

When using the show bgp ipv6 unicast summary command to verify the IPv6 BGP session status with the IPv6 BGP peers, you noticed the quot;St/PfxRcdquot; status for one of the IPv6 BGP peers is in the quot;Activequot; state. What does the quot;Activequot; state indicate?

  1. The IPv6 BGP session has been established with the IPv6 BGP peer.

  2. The router is in the process of sending BGP routing updates to the IPv6 BGP peer.

  3. The router is in the process of establishing the IPv6 BGP session with the IPv6 BGP peer.

  4. The router is exchanging BGP notification messages with its IPv6 BGP peer.

Answer: C

Question No.24

Refer to the exhibit. Which configuration is required on XR2 to enable MD5 IS-IS Authentication between R1 and XR2 using the password CISCO?

image

  1. Router isis ABC

    interface GigabitEthernet0/0/0/0 hello-password encrypted CISCO

  2. Router isis ABC

    interface GigabitEthernet0/0/0/0 hello-password hmac-md5 CISCO

  3. Router isis ABC

    lsp-password hmac-md5 CISCO

  4. Router isis ABC

lsp-password encrypted CISCO

Answer: B

Question No.25

Cisco IOS XE has OSPF area authentication configured for MD5 and interface authentication configured for clear text. Which configuration takes precedence?

  1. null

  2. area

  3. MD5

  4. interface

Answer: D

Question No.26

When configuring BGP on Cisco IOS XR Software, which address-family is enabled by default?

  1. IPv4 unicast

  2. IPv6 unicast

  3. VPNv4

  4. IPv4 unicast and IPv6 unicast

  5. IPv4 unicast and IPv6 unicast and VPNv4

  6. No address-family is enabled by default.

Answer: F

Explanation:

http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.8/routing/command/reference/rr38bgp.pdf

An address family must be explicitly configured in the router configuration mode for the address family to be active in BGP. Similarly, an address family must be configured under the neighbor for the BGP session to be established for that address family. An address family must be configured in router configuration mode before it can be configured under a neighbor.

Question No.27

The Cisco IOS XE Software summary-address router IS-IS configuration command can be used to send a summarized route into which IS-IS hierarchy?

  1. Level 1 only

  2. Level 2 only

  3. Level-1-2 only

  4. Level 1 or Level 2 or Level-1-2

Answer: D

Explanation:

image

Question No.28

For which reason might an enterprise#39;s Internet circuits use private AS BGP peerings?

  1. The enterprisewishes to obscure internal routing information from the Internet.

  2. The enterprise owns their own IP space.

  3. All redundant circuits are through the same provider.

  4. The enterprise uses BGP confederations internally.

Answer: C

Question No.29

Which option is a characteristic of intermediate systems on multiarea IS-IS?

  1. Level 2 contains routing information only for the local area.

  2. Level 2 contains routing information only for stub areas.

  3. Level 1 contains routing information only for the backbone area.

  4. Level 1 contains routing information onlyfor the local area.

Answer: D

Question No.30

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:

image

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