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New Cisco 200-125 Exam Dumps Collection (Question 16 - Question 24)

Question No: 16

Which IPv6 header field is equivalent to the TTL?

A. Hop Limit

B. Flow Label

C. TTD

D. Hop Count

E. Scan Timer

Answer: A


Question No: 17

What is a difference between TACACS+ and RADIUS in AAA?

A. Only TACACS+ allows for separate authentication.

B. Only RADIUS encrypts the entire access-request packet.

C. Only RADIUS uses TCP.

D. Only TACACS+ couples authentication and authorization.

Answer: A

Explanation: Authentication and Authorization

RADIUS combines authentication and authorization. The access-accept packets sent by the RADIUS server to the client contain authorization information. This makes it difficult to decouple authentication and authorization.

TACACS+ uses the AAA architecture, which separates AAA. This allows separate authentication solutions that can still use TACACS+ for authorization and accounting. For example, with TACACS+, it is possible to use Kerberos authentication and TACACS+ authorization and accounting. After a NAS authenticates on a Kerberos server, it requests authorization information from a TACACS+ server without having to re-authenticate. The NAS informs the TACACS+ server that it has successfully authenticated on a Kerberos server, and the server then provides authorization information.

During a session, if additional authorization checking is needed, the access server checks with a TACACS+ server to determine if the user is granted permission to use a particular command. This provides greater control over the commands that can be executed on the access server while decoupling from the authentication mechanism.


Question No: 18

Which three options are the HSRP states for a router? (Choose three.)

A. initialize

B. learn

C. secondary

D. listen

E. speak

F. primary

Answer: B,D,E

Explanation:

HSRP States


Question No: 19

Which two statements about northbound and southbound APIs are true? (Choose two.)

A. Only southbound APIs allow program control of the network.

B. Only northbound APIs allow program control of the network.

C. Only southbound API interfaces use a Service Abstraction Layer.

D. Only northbound API interfaces use a Service Abstraction Layer.

E. Both northbound and southbound API interfaces use a Service Abstraction Layer.

F. Both northbound and southbound APIs allow program control of the network.

Answer: B,C


Question No: 20

After you configure the Loopback0 interface, which command can you enter to verify the status of the interface and determine whether fast switching is enabled?

A. Router#show ip interface loopback 0

B. Router#show run

C. Router#show interface loopback 0

D. Router#show ip interface brief

Answer: A


Question No: 21

Refer to the exhibit.

What is the result of setting the no login command?

A. Telnet access is denied.

B. Telnet access requires a new password at the first login.

C. Telnet access requires a new password.

D. no password is required for telnet access.

Answer: D


Question No: 22

Which command can you enter to view the ports that are assigned to VLAN 20?

A. Switch#show vlan id 20

B. Switch#show ip interface brief

C. Switch#show interface vlan 20

D. Switch#show ip interface vlan 20

Answer: A


Question No: 23

Scenario:

You are a junior network engineer for a financial company, and the main office network is experiencing network issues. Troubleshoot the network issues.

Router R1 connects the main office to the internet, and routers R2 and R3 are internal routers.

NAT is enabled on router R1.

The routing protocol that is enabled between routers R1, R2 and R3 is RIPv2.

R1 sends the default route into RIPv2 for the internal routers to forward internet traffic to R1.

You have console access on R1, R2 and R3 devices. Use only show commands to troubleshoot the issues.

Why applications that are installed on PC's in R2 LAN network 10.100.20.0/24 are unable to communicate with server1?

A. A standard ACL statement that is configured on R1 is blocking the traffic sourced from Server1 network.

B. A standard ACL statement that is configured on R2 is blocking the traffic sourced from Setver1 network.

C. A standard ACL statement that is configured on R2 is blocking the traffic sourced from R2 LAN network.

D. A standard ACL statement that is configured on R1 is blocking the traffic sourced from R2 LAM network

Answer: B

Explanation:

Check the below now:


Question No: 24

Which statement about the IP SLAs ICMP Echo operation is true?

A. The frequency of the operation .s specified in milliseconds.

B. It is used to identify the best source interface from which to send traffic.

C. It is configured in enable mode.

D. It is used to determine the frequency of ICMP packets.

Answer: D

Explanation:

This module describes how to configure an IP Service Level Agreements (SLAs) Internet Control Message Protocol (ICMP) Echo operation to monitor end-to-end response time between a Cisco router and devices using IPv4 or IPv6. ICMP Echo is useful for troubleshooting network connectivity issues. This module also demonstrates how the results of the ICMP Echo operation can be displayed and analyzed to determine how the network IP connections are performing.

ICMP Echo Operation

The ICMP Echo operation measures end-to-end response time between a Cisco router and any devices using IP. Response time is computed by measuring the time taken between sending an ICMP Echo request message to the destination and receiving an ICMP Echo reply.

In the figure below ping is used by the ICMP Echo operation to measure the response time

between the source IP SLAs device and the destination IP device. Many customers use IP SLAs ICMP-based operations, in-house ping testing, or ping-based dedicated probes for response time measurements.

Figure 1. ICMP Echo Operation

The IP SLAs ICMP Echo operation conforms to the same IETF specifications for ICMP ping testing and the two methods result in the same response times.


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