Cisco 200-125 ExamCCNA Cisco Certified Network Associate CCNA (v3.0)

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New Cisco 200-125 Exam Dumps Collection (Question 4 - Question 13)

New Questions 4

Which IPv6 address is the all-router multicast group?

A. FF02::1

B. FF02::2

C. FF02::3

D. FF02::4

Answer: B

Explanation:

Well-known IPv6 multicast addresses:

Address Description ff02::1

All nodes on the local network segment

ff02::2

All routers on the local network segment


New Questions 5

You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the maximum number of subnets. Which network address and subnet mask meet this requirement?

A. 192.168.252.0 255.255.255.252

B. 192.168.252.8 255.255.255.248

C. 192.168.252.8 255.255.255.252

D. 192.168.252.16 255.255.255.240

E. 192.168.252.16 255.255.255.252

Answer: B

Explanation:

A subnet mask of 255.255.255.248 will allow for up to 6 hosts to reside in this network. A subnet mask of 255.255.255.252 will allow for only 2 usable IP addresses, since we cannot use the network or broadcast address.


New Questions 6

Scenario

Refer to the topology. Your company has connected the routers R1, R2, and R3 with serial links. R2 and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected to the routers R4 and R5.

The EIGRP routing protocol is configured.

You are required to troubleshoot and resolve the EIGRP issues between the various routers.

Use the appropriate show commands to troubleshoot the issues.

The loopback interfaces on R4 with the IP addresses of 10.4.4.4/32, 10.4.4.5/32, and 10.4.4.6/32 are not appearing in the routing table of R5. Why are the interfaces missing?

A. The interfaces are shutdown, so they are not being advertised.

B. R4 has been incorrectly configured to be in another AS, so it does not peer with R5.

C. Automatic summarization is enabled, so only the 10.0.0.0 network is displayed.

D. The loopback addresses haven't been advertised, and the network command is missing on R4.

Answer: B

Explanation:

For an EIGRP neighbor to form, the following must match:

- Neighbors must be in the same subnet

- K values

- AS numbers

- Authentication method and key strings

Here, we see that R4 is configured for EIGRP AS 2, when it should be AS 1.


New Questions 7

What are three approaches that are used when migrating from an IPv4 addressing scheme to an IPv6 scheme. (Choose three.)

A. enable dual-stack routing

B. configure IPv6 directly

C. configure IPv4 tunnels between IPv6 islands

D. use proxying and translation to translate IPv6 packets into IPv4 packets

E. statically map IPv4 addresses to IPv6 addresses

F. use DHCPv6 to map IPv4 addresses to IPv6 addresses

Answer: A,C,D

Explanation:

Several methods are used terms of migration including tunneling, translators, and dual stack. Tunnels are used to carry one protocol inside another, while translators simply translate IPv6 packets into IPv4 packets. Dual stack uses a combination of both native IPv4 and IPv6. With dual stack, devices are able to run IPv4 and IPv6 together and if IPv6 communication is possible that is the preferred protocol. Hosts can simultaneously reach IPv4 and IPv6 content.


New Questions 8

Refer to the exhibit.

An administrator pings the default gateway at 10.10.10.1 and sees the output as shown. At which OSI layer is the problem?

A. data link layer

B. application layer

C. access layer

D. session layer

E. network layer

Answer: E

Explanation:

The command ping uses ICMP protocol, which is a network layer protocol used to propagate control message between host and router. The command ping is often used to verify the network connectivity, so it works at the network layer.


New Questions 9

CORRECT TEXTCCNA.com has a small network that is using EIGRP as its IGP. All routers should be running an EIGRP AS number of 12. Router MGT is also running static routing to the ISP.

CCNA.com has recently added the ENG router. Currently, the ENG router does not have connectivity to the ISP router. All over interconnectivity and Internet access for the existing locations of the company are working properly.

The taskis to identify the fault(s) and correct the router configuration(s) to provide full connectivity between the routers.

Access to the router CLI can be gained by clicking on the appropriate host.

All passwords on all routers arecisco.

IP addresses are listed in the chart below.

MGT

Fa0/0 u2013 192.168.77.33

S1/0 u2013 198.0.18.6

S0/0 u2013 192.168.27.9

S0/1 u2013 192.168.50.21

ENG

Fa0/0 u2013 192.168.77.34

Fa1/0 u2013 192.168.12.17

Fa0/1 u2013 192.168.12.1

Parts1

Fa0/0 u2013 192.168.12.33

Fa0/1 u2013 192.168.12.49

S0/0 u2013 192.168.27.10

Parts2

Fa0/0 u2013 192.168.12.65

Fa0/1 u2013 192.168.12.81

S0/1 u2013 192.168.50.22

Answer:

On the MGT Router: Config t

Router eigrp 12

Network 192.168.77.0


New Questions 10

Which three features are added in SNMPv3 over SNMPv2?

A. Message Integrity

B. Compression

C. Authentication

D. Encryption

E. Error Detection

Answer: A,C,D

Explanation:

Cisco IOS software supports the following versions of SNMP:

+ SNMPv1 u2013 The Simple Network Management Protocol: A Full Internet Standard, defined

in RFC 1157. (RFC 1157 replaces the earlier versions that were published as RFC 1067 and RFC 1098.) Security is based on community strings.

+ SNMPv2c u2013 The community-string based Administrative Framework for SNMPv2. SNMPv2c (the u201ccu201d stands for u201ccommunityu201d) is an Experimental Internet Protocol defined in RFC 1901, RFC 1905, and RFC 1906. SNMPv2c is an update of the protocol operations and data types of SNMPv2p (SNMPv2 Classic), and uses the community-based security model of SNMPv1.

+ SNMPv3 u2013 Version 3 of SNMP. SNMPv3 is an interoperable standards-based protocol defined in RFCs 2273 to 2275. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting packets over the network. The security features provided in SNMPv3 are as follows:

u2013 Message integrity: Ensuring that a packet has not been tampered with in transit.

u2013 Authentication: Determining that the message is from a valid source.

u2013 Encryption: Scrambling the contents of a packet prevent it from being learned by an unauthorized source.


New Questions 11

Refer to the exhibit.

HostA cannot ping HostB. Assuming routing is properly configured, what is the cause of this problem?

A. HostA is not on the same subnet as its default gateway.

B. The address of SwitchA is a subnet address.

C. The Fa0/0 interface on RouterA is on a subnet that can't be used.

D. The serial interfaces of the routers are not on the same subnet.

E. The Fa0/0 interface on RouterB is using a broadcast address.

Answer: D

Explanation:

Now letu2019s find out the range of the networks on serial link: For the network 192.168.1.62/27:

Increment: 32

Network address: 192.168.1.32

Broadcast address: 192.168.1.63 For the network 192.168.1.65/27: Increment: 32

Network address: 192.168.1.64

Broadcast address: 192.168.1.95

-> These two IP addresses donu2019t belong to the same network and they canu2019t see each other.


New Questions 12

What are three components that comprise the SNMP framework? (Choose three.)

A. MIB

B. agent

C. set

D. AES

E. supervisor

F. manager

Answer: A,B,F

Explanation:

The SNMP framework consists of three parts:

u2022An SNMP manager u2014 The system used to control and monitor the activities of network devices using SNMP.

u2022An SNMP agent u2014 The software component within the managed device that maintains the data for the device and reports these data, as needed, to managing systems. Cisco Nexus 1000V supports the agent and MIB. To enable the SNMP agent, you must define the relationship between the manager and the agent.

u2022A managed information base (MIB) u2014 The collection of managed objects on the SNMP agent.

SNMP is defined in RFCs 3411 to 3418.

Reference: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus1000/sw/4_0_4_s_v_1_3/s

ystem_management/configuration/guide/n1000v_system/n1000v_system_10snmp.html


New Questions 13

What is the first 24 bits in a MAC address called?

A. NIC

B. BIA

C. OUI

D. VAI

Answer: C

Explanation:

An Organizationally Unique Identifier (OUI) is a 24-bit number that uniquely identifies a vendor, manufacturer, or other organization globally or worldwide.

They are used as the first 24 nits of the MAC address to uniquely identify a particular piece of equipment.


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