[Free] 2017(July) EnsurePass Examcollection Cisco 200-125 Dumps with VCE and PDF 311-320

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CCNA Cisco Certified Network Associate CCNA (v3.0)

Question No: 311 – (Topic 7)

In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?

  1. during high traffic periods

  2. after broken links are re-established

  3. when upper-layer protocols require high reliability

  4. in an improperly implemented redundant topology

  5. when a dual ring topology is in use

Answer: D Explanation:

If we connect two switches via 2 or more links and do not enable STP on these switches then a loop (which creates multiple copies of the same unicast frame) will occur. It is an example of an improperly implemented redundant topology.

Question No: 312 – (Topic 7)

Refer to the exhibit.

image

If the devices produced the given output, what is the cause of the EtherChannel problem?

  1. SW1#39;s Fa0/1 interface is administratively shut down.

  2. There is an encapsulation mismatch between SW1#39;s Fa0/1 and SW2#39;s Fa0/1 interfaces.

  3. There is an MTU mismatch between SW1#39;s Fa0/1 and SW2#39;s Fa0/1 interfaces.

  4. There is a speed mismatch between SW1#39;s Fa0/1 and SW2#39;s Fa0/1 interfaces.

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 No: 313 CORRECT TEXT – (Topic 7)

CCNA.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 task is 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 are cisco.

IP addresses are listed in the chart below.

MGT

Fa0/0 鈥?192.168.77.33

S1/0 鈥?198.0.18.6

S0/0 鈥?192.168.27.9

S0/1 鈥?192.168.50.21

ENG

Fa0/0 鈥?192.168.77.34

Fa1/0 鈥?192.168.12.17

Fa0/1 鈥?192.168.12.1

Parts1

Fa0/0 鈥?192.168.12.33

Fa0/1 鈥?192.168.12.49

S0/0 鈥?192.168.27.10

Parts2

Fa0/0 鈥?192.168.12.65

Fa0/1 鈥?192.168.12.81

S0/1 鈥?192.168.50.22

image

Answer: On the MGT Router: Config t

Router eigrp 12

Network 192.168.77.0

Question No: 314 – (Topic 7)

What are three reasons to collect Netflow data on a company network? (Choose three.)

  1. To identify applications causing congestion.

  2. To authorize user network access.

  3. To report and alert link up / down instances.

  4. To diagnose slow network performance, bandwidth hogs, and bandwidth utilization.

  5. To detect suboptimal routing in the network.

  6. To confirm the appropriate amount of bandwidth that has been allocated to each Class of Service.

Answer: A,D,F Explanation:

NetFlow facilitates solutions to many common problems encountered by IT professionals.

Analyze new applications and their network impact

Identify new application network loads such as VoIP or remote site additions.

Reduction in peak WAN traffic

Use NetFlow statistics to measure WAN traffic improvement from application-policy changes; understand who is utilizing the network and the network top talkers.

Troubleshooting and understanding network pain points

Diagnose slow network performance, bandwidth hogs and bandwidth utilization quickly with command line interface or reporting tools. -gt; D is correct.

Detection of unauthorized WAN traffic

Avoid costly upgrades by identifying the applications causing congestion. -gt; A is correct.

Security and anomaly detection

NetFlow can be used for anomaly detection and worm diagnosis along with applications such as Cisco CS-Mars.

Validation of QoS parameters

Confirm that appropriate bandwidth has been allocated to each Class of Service (CoS) and that no CoS is over- or under-subscribed.-gt; F is correct.

Question No: 315 – (Topic 7)

An administrator is trying to ping and telnet from SwitchC to RouterC with the results shown below.

image

Click the console connected to RouterC and issue the appropriate commands to answer the questions.

image

image

image

image

image

What would be the effect of issuing the command ip access-group 115 in on the s0/0/1 interface?

  1. No host could connect to RouterC through s0/0/1.

  2. Telnet and ping would work but routing updates would fail.

  3. FTP, FTP-DATA, echo, and www would work but telnet would fail.

  4. Only traffic from the 10.4.4.0 network would pass through the interface.

Answer: A Explanation:

First let’s see what was configured on interface S0/0/1:

image

Topic 8, Mixed Questions

Question No: 316 – (Topic 8)

Refer to the exhibit.

image

Which statement describes the effect of this configuration?

  1. The VLAN 10 VTP configuration is displayed.

  2. VLAN 10 spanning-tree output is displayed.

  3. The VLAN 10 configuration is saved when the router exits VLAN configuration mode.

  4. VLAN 10 is added to the VLAN database.

Answer: D

Question No: 317 – (Topic 8)

During which phase of PPPoE is PPP authentication performed?

  1. the PPP Session phase

  2. Phase 2

  3. the Active Discovery phase

  4. the Authentication phase

  5. Phase 1

Answer: A

Question No: 318 – (Topic 8)

Which type of address is the public IP address of a NAT device?

  1. outside global

  2. outside local

  3. inside global

  4. inside local

  5. outside public

  6. inside public

Answer: C

Question No: 319 – (Topic 8)

which three technical services support cloud computing ?

  1. network-monitored power sources

  2. layer 3 network routing

  3. ip localization

  4. redundant connections

  5. VPN connectivity

  6. extended SAN services

Answer: D,E,F

Question No: 320 – (Topic 8)

Which feature can you use to monitor traffic on a switch by replicating it to another port or ports on the same switch?

  1. copy run start

  2. traceroute

  3. the ICMP Echo IP SLA

  4. SPAN

Answer: D

Explanation: A source port, also called a monitored port, is a switched or routed port that you monitor for network traffic analysis. In a single local SPAN session or RSPAN source session, you can monitor source port traffic, such as received (Rx), transmitted (Tx), or bidirectional (both). The switch supports any number of source ports (up to the maximum number of available ports on the switch) and any number of source VLANs.

A source port has these characteristics:

->It can be any port type, such as EtherChannel, Fast Ethernet, Gigabit Ethernet, and so forth.

->It can be monitored in multiple SPAN sessions.

->It cannot be a destination port.

->Each source port can be configured with a direction (ingress, egress, or both) to monitor. For EtherChannel sources, the monitored direction applies to all physical ports in the group.

->Source ports can be in the same or different VLANs.

->For VLAN SPAN sources, all active ports in the source VLAN are included as source ports.

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