[Free] 2017(July) Ensurepass Testking Cisco 200-125 Latest Dumps 281-290

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CCNA Routing and Switching v3.0

QUESTION 281

DRAG DROP

clip_image002

 

Correct Answer:

clip_image004

 

 

QUESTION 282

Which protocol can cause overload on a CPU of a managed device?

 

A.

Netflow

B.

WCCP

C.

IP SLA

D.

SNMP

 

Correct Answer: D

Explanation:

Sometimes, messages like this might appear in the router console:

 

%SNMP-3-CPUHOG: Processing [chars] of [chars]

 

They mean that the SNMP agent on the device has taken too much time to process a request.

You can determine the cause of high CPU use in a router by using the output of the show process cpu command.

Note: A managed device is a part of the network that requires some form of monitoring and management (routers, switches, servers, workstations, printers…).

 

 

QUESTION 283

What Netflow component can be applied to an interface to track IPv4 traffic?

 

A.

flow monitor

B.

flow record

C.

flow sampler

D.

flow exporter

 

Correct Answer: A

Explanation:

Flow monitors are the Flexible NetFlow component that is applied to interfaces to perform network traffic monitoring. Flow monitors consist of a record and a cache. You add the record to the flow monitor after you create the flow monitor. The flow monitor cache is automatically created at the time the flow monitor is applied to the first interface. Flow data is collected from the network traffic during the monitoring process based on the key and nonkey fields in the record, which is configured for the flow monitor and stored in the flow monitor cache.

For example, the following example creates a flow monitor named FLOW-MONITOR-1 and enters Flexible NetFlow flow monitor configuration mode:

Router(config)# flow monitor FLOW-MONITOR-1

Router(config-flow-monitor)#

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUESTION 284

Refer to the exhibit. Hosts in network 192.168.2.0 are unable to reach hosts in network 192.168.3.0. Based on the output from RouterA, what are two possible reasons for the failure? (Choose two.)

 

clip_image006

 

A.

The cable that is connected to S0/0 on RouterA is faulty.

B.

Interface S0/0 on RouterB is a
dministratively down.

C.

Interface S0/0 on RouterA is configured with an incorrect subnet mask.

D.

The IP address that is configured on S0/0 of RouterB is not in the correct subnet.

E.

Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU.

F.

The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA.

 

Correct Answer: EF

Explanation:

From the output we can see that there is a problem with the Serial 0/0 interface. It is enabled, but the line protocol is down. There could be a result of mismatched encapsulation or the interface not receiving a clock signal from the CSU/DSU.

 

 

QUESTION 285

Refer to the exhibit. If the devices produced the given output, what is the cause of the EtherChannel problem?

 

clip_image008

 

A.

SW1’s Fa0/1 interface is administratively shut down.

B.

There is an encapsulation mismatch between SW1’s Fa0/1 and SW2’s Fa0/1 interfaces.

C.

There is an MTU mismatch between SW1’s Fa0/1 and SW2’s Fa0/1 interfaces.

D.

There is a speed mismatch between SW1’s Fa0/1 and SW2’s Fa0/1 interfaces.

 

Correct Answer: D

Explanation:

You must configure all interfaces in an EtherChannel to operate at the same speeds and duplex modes. Based on the output shown, SW1 is configured to run at 10Mb while SW2 is operating at 100 Mb.

 

 

QUESTION 286

Refer to the exhibit. The network shown in the diagram is experiencing connectivity problems. Which of the following will correct the problems? (Choose two.)

 

clip_image009

A.

Configure the gateway on Host A as 10.1.1.1.

B.

Configure the gateway on Host B as 10.1.2.254.

C.

Configure the IP address of Host A as 10.1.2.2.

D.

Configure the IP address of Host B as 10.1.2.2.

E.

Configure the masks on both hosts to be 255.255.255.224.

F.

Configure the masks on both hosts to be 255.255.255.240.

 

Correct Answer: BD

Explanation:

The switch 1 is configured with two VLANs: VLAN1 and VLAN2.

The IP information of member Host A in VLAN1 is as follows:

Address : 10.1.1.126

Mask : 255.255.255.0

Gateway : 10.1.1.254

The IP information of member Host B in VLAN2 is as follows:

Address : 10.1.1.12

Mask : 255.255.255.0

Gateway : 10.1.1.254

The configuration of sub-interface on router 2 is as follows:

Fa0/0.1 — 10.1.1.254/24 VLAN1

Fa0/0.2 — 10.1.2.254/24 VLAN2

It is obvious that the configurations of the gateways of members in VLAN2 and the associated network segments are wrong. The layer3 addressing information of Host B should be modified as follows:

Address : 10.1.2.X

Mask : 255.255.255.0

 

 

QUESTION 287

Refer to the exhibit. The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three.)

 

clip_image010

 

A.

Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.

B.

Ensure that cables A and B are straight-through cables.

C.

Ensure cable A is plugged into a trunk port.

D.

Ensure the switch has power.

E.< /font>

Reboot all of the devices.

F.

Reseat all cables.

 

Correct Answer: BDF

Explanation:

The ports on the switch are not up indicating it is a layer 1 (physical) problem so we should check cable type, power and how they are plugged in.

 

 

QUESTION 288

What Cisco IOS feature can be enabled to pinpoint an application that is causing slow network performance?

 

A.

SNMP

B.

Netflow

C.

WCCP

D.

IP SLA

 

Correct Answer: B

Explanation:

Netflow can be used to diagnose slow network performance, bandwidth hogs and bandwidth utilization quickly with command line interface or reporting tools.

Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-netflow/prod_white_paper0900aecd80406232.html

 

 

QUESTION 289

What are the three things that the Netflow uses to consider the traffic to be in a same flow? (Choose three)

 

A.

IP address

B.

Interface name

C.

Port numbers

D.

L3 protocol type

E.

MAC address

 

Correct Answer: ACD

Explanation:

What is an IP Flow?

Each packet that is forwarded within a router or switch is examined for a set of IP packet attributes. These attributes are the IP packet identity or fingerprint of the packet and determine if the packet is unique or similar to other packets. Traditionally, an IP Flow is based on a set of 5 and up to 7 IP packet attributes.

IP Packet attributes used by NetFlow:

 

clip_image012IP source address

clip_image012[1]IP destination address

clip_image012[2]Source port

clip_image012[3]Destination port

clip_image012[4]Layer 3 protocol type

clip_image012[5]Class of Service

clip_image012[6]Router or switch interface

QUESTION 290

Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three.)

 

A.

ping

B.

tracert

C.

ipconfig

D.

show ip route

E.

winipcfg

F.

show interfaces

 

Correct Answer: ADF

Explanation:

Ping, show ip route, and show interfaces are all valid troubleshooting IOS commands. Tracert, ipconfig, and winipcfg are PC commands, not IOS.

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