[Free] 2018(Mar) EnsurePass Passguide Cisco 640-875 Dumps with VCE and PDF 41-50

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Building Cisco Service Provider Next-Generation Networks, Part 1 (SPNGN1)

Question No: 41 – (Topic 4)

Refer to the exhibit.

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R1 and R2 are running RIPv1 for the 10.0.0.0 and 192.168.1.0 networks. No default or static routes have been configured on the routers. Which two statements about this topology are true? (Choose two.)

  1. R1 summarizes the 10.1.1.0/24 subnet to 10.0.0.0/8 when it sends its RIPv1 routing updates to R2. R2 summarizes the 10.2.2.0/24 subnet to 10.0.0.0/8 when it sends its RIPv1 routing updates to R1.

  2. To support this topology, R1 and R2 must be configured so that RIPv1 auto-summary is disabled.

  3. R1 sends information about the 10.1.1.0/24 subnet when it sends its RIPv1 routing updates to R2. R2 sends information about the 10.2.2.0/24 subnet when it sends its RIPv1 routing updates to R1. Example of RIPv1 update from R1 to R2:RIP: build update entriesnetwork 10.1.1.0/24 metric 1

  4. Hosts on the 10.1.1.0/24 subnet are unable to communicate with hosts on the 10.2.2.0/24 subnet.

  5. R1 accepts the 10.2.2.0/24 RIPv1 routing updates from R2 and installs the 10.2.2.0/24 route in its routing table. R2 accepts the 10.1.1.0/24 RIPv1 routing updates from R1 and installs the 10.1.1.0/24 route in its routing table.

Answer: A,D

Question No: 42 – (Topic 4)

Refer to the exhibit.

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Company 1 has merged with Company 2. Company 1 is using RIPv2 as its IGP and Company 2 is using EIGRP as its IGP. EIGRP also is running between R1 and R2 over the WAN link. Which action must be taken to allow these two configurations?

The Company 1 RIP routes appear as external EIGRP routes within Company 2. The Company 2 EIGRP routes appear as RIPv2 routes within Company 1.

  1. Enable RIPv2 on the R2 router.

  2. Enable RIPv2 on the R2 router and on all internal routers of Company 2. Enable EIGRP on all internal routers of Company 1.

  3. Configure mutual route redistribution between RIPv2 and EIGRP on the R1 and R2 routers.

  4. Configure mutual route redistribution between RIPv2 and EIGRP on the R1 router.

  5. Configure mutual route redistribution between RIPv2 and EIGRP on the R2 router.

Answer: D

Question No: 43 CORRECT TEXT – (Topic 4)

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Answer: Click on PE5: Config t

Interface lo0

ipv4 address 10.5.1.1/32

ipv6 address 2001:db8:10:5:1::1/128 commit

interface gi0/0/0/0 no shut

ipv4 address 192.168.105.50/24

ipv6 address 2001:db8:192:168:105::50/64 router eigrp 1

address-family ipv4 interface loopback0 interface gi0/0/0/0 address-family ipv6 interface loopback0 interface gi0/0/0/0 commit

Verify by pinging the ipv4 and ipv6 loopback IP addresses of CE5.

Question No: 44 – (Topic 4)

When EIGRP is enabled on Cisco IOS XR, which EIGRP feature is on by default?

  1. no auto-summary

  2. stub routing

  3. unequal cost paths load-balancing

  4. no ip eigrp split-horizon

  5. eigrp authentication

Answer: A

Question No: 45 – (Topic 4)

According to RFC 2080, which routing protocol is compatible with IPv6?

  1. RIPv2

  2. OSPF

  3. RIP-NG

  4. EIGRPv6

  5. OSPFv2

  6. EIGRP-NG

Answer: C

Question No: 46 DRAG DROP – (Topic 4)

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Answer:

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Topic 5, IP Services

Question No: 47 – (Topic 5)

What are three features present on both ICMPv4 and ICMPv6? (Choose three.)

  1. Connectivity tests

  2. Address assignment

  3. Information error messaging

  4. Address resolution

  5. Mobile IPv4 support

  6. Multicast group management

  7. Mobile IPv6 support

  8. Fragmentation needed notification

Answer: A,C,H

Question No: 48 – (Topic 5)

A centralized DHCP server has been setup for customer use. What command is required on the customer Switched Virtual Interface (SVI) to allow clients to receive addresses from this server?

  1. switch(config-if)#ip helper-address

  2. switch(config)#ip helper-address

  3. switch(config-if)#ip dhcp-address

  4. switch(config-if)#ip dhcp-gateway

  5. switch(config-if)#helper-address

Answer: A

Question No: 49 – (Topic 5)

Which IPv6 feature replaced and enhanced the IPv4 ARP functions?

  1. ARPv6

  2. DHCPv6

  3. Neighbor discovery protocol in ICMPv6

  4. Router solicitation and router advertisement

  5. Auto configuration

Answer: C

Question No: 50 – (Topic 5)

Which two statements about IPv4 DHCP operations are true? (Choose two.)

  1. If the DHCP clients and servers are on the same subnet, DHCP uses UDP broadcasts to communicate between the clients and servers.

  2. The DHCP server that receives a DHCPDISCOVER message may respond with a DHCPOFFER message on UDP port 67.

  3. A client can receive DHCPOFFER from multiple servers and it can accept all the offers by broadcasting the DHCPREQUEST message to all the servers.

  4. A DHCP relay is required if the DHCP clients and the servers are on the same subnet.

  5. If the client and server are on different subnets, DHCPDISCOVER and DHCPREQUEST messages are sent via UDP broadcasts, but DHCPOFFER and DHCPACK messages are unicast.

  6. The client broadcasts a DHCPDISCOVER message on UDP port 68 with its own MAC address to discover available DHCP servers.

Answer: A,E

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