ccna4 discovery exam 6

A network engineer researched whether there are mechanisms available to help with the transition from an IPv4 addressing structure to IPv6. What three options did the engineer find? (Choose three.)

A protocol translation mechanism allows communication between the IPv4 and IPv6 networks.

A packet analyzer determines the addressing structure and converts it to the appropriate IPv4 or IPv6 scheme.

New Core devices that support IPV6 must be purchased. A protocol converter changes IPv4 packets into IPv6 packets and vice versa. A dual-stack network design allows both IPv4 and IPv6 addressing to be used on all

network devices. Tunneling allows IPv4 packets to be encapsulated so that they can traverse IPv6

networks and vice versa.

Option 1, Option 5, and Option 6 are correct.

When should the command no auto-summary be used? with RIP version 1, to enable classless routing with RIP version 2, to enable classless routing with RIP version 1, when discontigous networks exist with RIP version 2, when discontigous networks exist

2 points for Option 4

Refer to the exhibit. What must an administrator do on R3 to ensure that update packets are sent with subnet mask information?

Add the commands:R3(config-router)# auto-summary R3(config-router)# no version 2

Add the commands: R3(config-router)# version 2 R3(config-router)# no auto-summary

Change the network statement on R3:R3(config)# network 10.10.4.0

Add the command: R3(config)# ip route 0.0.0.0 0.0.0.0 s0/0


What best describes a discontiguous network? combines several classfull networking address contains more than one route to a destination implements more than one routing protocol separated from the rest of the hierarchical group by another network


Refer to the exhibit. A company has decided to add a new workgroup. If the subnetting scheme for the network uses contiguous blocks of addresses, what subnet is assigned to WGROUP3?

172.16.3.12/29 172.16.3.16/29 172.16.3.20/29 172.16.3.24/29 172.16.3.32/29

2 points for Option 2A network administrator is using the 10.0.0.0/8 network for the company. The administrator must

create a masking scheme to support 750 users at the main office and 620 users at the remote office. What mask should be assigned to the 10.0.0.0/8 network to preserve the most addresses?

255.255.255.0 /19 /20 255.255.252.0 /23 /21


What is another format for the IPv6 address 1080:0000:0000:0000:0000:0000:1267:01A2? 1080::1267:01A2 1080:0:0:0:0:1267:01A2 1080::0:1267:01A2 1080:::::1267.01A2


How many bits make up an IPv6 address? 32 48 64 128


After activating IPv6 traffic forwarding, configuring IPv6 addresses, and globally configure RIPng, what is the remaining step to activate RIPng?

Enter the ipv6 router rip name command and then use network statements to activate RIPng on the interfaces.

Enter the ipv6 router rip name command and then specify which interfaces run RIPng, which are passive, and which only receive.

Enter the interface mode for each IPv6 interface and enable RIPng with the ipv6 rip name enable command.

Enter the interface mode for each IPv6 interface and enable the multicast group FF02::9, and then activate RIPng globally using the ipv6 router rip name command.

Enter the router rip command, and then activate RIPng using the version command. RIPng then automatically runs on all IPv6 interfaces.


Refer to the exhibit. The IT management has determined that the new subnet for WGROUP3 needs to be broken down into four more subnets. What would the subnet mask be for the four newly created subnets within WGROUP3?

255.255.128.0 255.255.192.0 255.255.224.0 255.255.248.0 255.255.252.0 255.255.255.0

2 points for Option 2Refer to the exhibit. What is the first usable IP address that can be assigned to the WGROUP3 switch?

172.16.50.96/27 172.16.50.97/27 172.16.50.98/27 172.16.50.99/27


Refer to the exhibit. Which set of router commands is required to turn on unequal-cost load sharing so that RTRA selects the path A-B-E and the lowest cost path A-C-E to the Internet?

RTRA(config)# router eigrp 1 RTRA(config-router)# variance 2

RTRA(config)# router eigrp 1 RTRA(config-router)# variance 1

RTRA(config)# router eigrp 1 RTRA(config-router)# maximum-paths 2

RTRA(config)# router eigrp 1 RTRA(config-router)# maximum-paths 1


Refer to the exhibit. Assuming that the default EIGRP configuration is running on both routers, which statement is true about Router A reaching the 2.2.2.0/24 network?

The no auto-summary command needs to be issued to disable automatic summarization. The network 2.2.2.0 command needs to be issued to ensure that Router A recognizes the

2.2.2.0 network. EIGRP supports VLSM and automatically recognizes the 2.2.2.0 network. EIGRP does not support VLSM; therefore it cannot be used with discontiguous networks.


Refer to the exhibit. The network administrator wants router RTA to send only the summarized route of 10.10.0.0/16 to RTC. Which configuration accomplishes this?

RTA(config)# interface s0/0 RTA(config-if)# ip summary-address eigrp 101 10.10.0.0 255.255.0.0 RTA(config-if)# exit RTA(config)# router eigrp 101 RTA(config-router)# no auto-summary

RTA(config)# interface s0/1 RTA(config-if)# ip summary-address eigrp 101 10.10.0.0 255.255.0.0 RTA(config-if)# exit RTA(config)# router eigrp 101 RTA(config-router)# no auto-summary

RTA(config)# interface s0/0 RTA(config-if)# ip summary-address eigrp 101 10.10.0.0 255.255.0.0

RTA(config)# interface s0/1 RTA(config-if)# ip summary-address eigrp 101 10.10.0.0 255.255.0.0


What is a good design practice when developing a hierarchical addressing scheme? Address the nodes in the Access Layer and work toward the Core Layer. Assign addresses to the Core devices before planning the addressing scheme for the

server farm. Determine where statically configured addressing will be implemented. Determine what percentage of devices are wired and what percentage of devices are

wireless.


A network administrator is asked to design a new addressing scheme for a corporate network. Presently, there are 850 users at the head office, 220 users at sales, 425 at manufacturing, and 50 at the research site. Which statement defines the correct VLSM addressing map with minimal waste using the 172.17.0.0/16 network?

172.17.0.0/20 head office172.17.1.0/21 manufacturing172.17.1.0/22 sales172.17.3.0/26 research





How would the routes for networks 172.16.1.0/24, 172.16.3.0/24, and 172.16.15.0/24 be summarized?

172.16.0.0/20 172.16.0.0/21 172.16.0.0/22 172.16.0.0/24


What two advantages does CIDR provide to a network? (Choose two.) dynamic address assignment automatic route redistribution reduced routing update traffic easier management of summarization automatic summarization at classfull boundaries

Option 3 and Option 4 are correct.

Which statement describes MD5 authentication for neighbor authentication? All passwords are sent in clear text when neighbors first learn about each other. Only the initiating router sends its password using encrypted text when it first discovers a

new router. All routers send their password using encrypted text only when they first learn of each

other. All routers send their password using encrypted text each time they exchange update

packets.


Refer to the exhibit. What are the broadcast addresses for each subnet? Admin - 172.16.31.0

QA - 172.16.1.127Development - 172.16.2.255 Sales - 172.16.32.255

Admin - 172.16.31.255QA - 172.16.1.255Development - 172.16.3.255Sales - 172.16.63.255




Item Information Page - Domain Knowledge - Weighted Score

Below you will find the question as it was presented during the exam and the scoring rules associated with the item.To view the recorded response for these items, please select "View Learner Response". Please note, this feature is not available for most interactive item formats. In some cases, no response will display when you select "View Learner Response" because an answer was not submitted for the item.

Which network configuration would require the use of the no auto-summary command?

with RIP version 1, to enable subnetting on a local network with RIP version 2, to enable classful routing with RIP version 1, when discontiguous networks exist with RIP version 2, when discontiguous networks exist

Scoring Rule For: correctness of response2 points for Option 40 points for any other option

Max Value = 2Earned Value = 0

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Refer to the exhibit. The IT management is adding three VLANs to the wgroup3 switch. The current subnet will be broken down to support 14 hosts for each of the new VLANs. What will the new subnet mask be for these VLANs?

255.255.255.192 255.255.255.240 255.255.248.0 255.255.255.224 255.255.240.0 255.255.255.248

Scoring Rule For: correctness of response2 points for Option 20 points for any other option Max Value = 2Earned Value = 0

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An administrator is configuring IPv6 on a router. The steps that have already been completed are:

1. Activate IPv6 traffic forwarding. 2. Configure IPv6 addresses. 3. Globally configure RIPng.

What is the remaining step to complete the activation of RIPng? Enter the ipv6 router rip name command and then use network statements to

activate RIPng on the interfaces. Enter the ipv6 router rip name command and then specify which interfaces run

RIPng, which are passive, and which only receive. Enter the interface mode for each IPv6 interface and enable RIPng with the ipv6

rip name enable command. Enter the interface mode for each IPv6 interface and enable the multicast group

FF02::9, and then activate RIPng globally using the ipv6 router rip name command. Enter the router rip command, and then activate RIPng using the version

command. RIPng then automatically runs on all IPv6 interfaces.


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Which range includes all available networks in the 192.168.8.0/21 network?

192.168.8.0/24 - 192.168.14.0/24 192.168.8.0/24 - 192.168.15.0/24 192.168.8.0/24 - 192.168.16.0/24 192.168.8.0/24 - 192.168.17.0/24


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Which two are best practices for creating a new IP addressing scheme for a network? (Choose two.)

Plan and allow for significant growth. Assign addresses to the access layer before any other layer. Plan the entire addressing scheme before assigning any addresses. Begin with the access layer network summary addresses and work to the edge. Plan the addressing scheme to meet the current minimum requirement needs. Implement statically assigned addresses to all hosts in the distribution layer first.

Scoring Rule For: correctness of responseOption 1 and Option 3 are correct.1 point for each correct option.0 points if more options are selected than required. Max Value = 2Earned Value = 1

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Refer to the exhibit. Which subnet will provide sufficient addresses for the Production network with minimal waste?

172.16.0.192/26 172.16.0.192/27 172.16.0.224/26 172.16.0.160/26 172.16.0.144/27


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A network designer is implementing a new network for a company. The designer is using all new Cisco equipment and has decided to select a hierarchical routing protocol for the network. The designer wishes to minimize traffic from routing updates but also needs fast routing convergence in the event of a topology change. Also, the existing IP addressing scheme requires that the selected protocol support VLSM. Which routing protocol should be chosen?

BGP RIP v1 RIP v2 OSPF EIGRP


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ccna4 discovery exam 6

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