[Free] 2017(Oct) Dumps4cert Testinsides Cisco 100-105 Dumps with VCE and PDF Download 181-190

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Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0)

Question No: 181 – (Topic 5)

Refer to the exhibit.

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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.)

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

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

  3. Ensure cable A is plugged into a trunk port.

  4. Ensure the switch has power.

  5. Reboot all of the devices.

  6. Reseat all cables.

Answer: B,D,F 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 No: 182 – (Topic 5)

If a host experiences intermittent issues that relate to congestion within a network while remaining connected, what could cause congestion on this LAN?

  1. half-duplex operation

  2. broadcast storms

  3. network segmentation

  4. multicasting

Answer: B Explanation:

A broadcast storm can consume sufficient network resources so as to render the network unable to transport normal traffic.

Question No: 183 – (Topic 5)

Refer to the exhibit.

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A technician is troubleshooting a host connectivity problem. The host is unable to ping a server connected to Switch_A. Based on the results of the testing, what could be the problem?

  1. A remote physical layer problem exists.

  2. The host NIC is not functioning.

  3. TCP/IP has not been correctly installed on the host.

  4. A local physical layer problem exists.

Answer: D Explanation:

Here we see that the host is able to ping its own loopback IP address of 127.0.0.1 and it’s own IP address of 10.0.0.35, so we know that the NIC is functioning and that the host’s TCP/IP stack is OK. However, it is not able to ping the IP address of its local default gateway, so we know that there is a local cabling problem between the switch and the router.

Question No: 184 – (Topic 5)

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Dumps4Cert 2017 PDF and VCE

Select two options which are security Issues which need to be modified before RouterA is used? (Choose two.)

  1. unencrypted weak password is configured to protect privilege mode

  2. inappropriate wording in banner message

  3. the virtual terminal lines have a weak password configured

  4. virtual terminal lines have a password, but it will not be used

  5. configuration supports un-secure web server access

Answer: B,D

Question No: 185 – (Topic 5)

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The hosts in the LAN are not able to connect to the Internet. Which commands will correct this issue?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

  5. Option E

Answer: B Explanation:

Do a “show ip int brief” and you will see that Fa0/1 has an IP address assigned, but it is shut down.

Question No: 186 – (Topic 5)

A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?

  1. decrease the window size

  2. use a different source port for the session

  3. decrease the sequence number

  4. obtain a new IP address from the DHCP server

  5. start a new session using UDP

Answer: A Explanation:

The Window bit in the header determines the number of segments that can be sent at a time. This is done to avoid overwhelming the destination. At the start of the session the window in small but it increases over time. The destination host can also decrease the window to slow down the flow. Hence the window is called the sliding window. When the source has sent the number of segments allowed by the window, it cannot send any further segments till an acknowledgement is received from the destination. On networks with high error rates or issues, decreasing the window size can result in more reliable transmission, as the receiver will need to acknowledge fewer segments. With a large window size, the sender will need to resend all the frames if a single one is not received by the receiver.

Question No: 187 – (Topic 5)

Refer to the exhibit.

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After the power-on-self test (POST), the system LED of a Cisco 2950 switch turns amber. What is the status of the switch?

  1. The POST was successful.

  2. The switch has a problem with the internal power supply and needs an external power supply to be attached.

  3. POST failed and there is a problem that prevents the operating system from being loaded.

  4. The switch has experienced an internal problem but data can still be forwarded at a slower rate.

  5. The switch passed POST, but all the switch ports are busy.

Answer: C Explanation:

http://www.cisco.com/en/US/products/hw/switches/ps607/products_tech_note09186a00801 25913.shtml

Each time you power up the switch, eight Power-On Self Tests (POSTs) run automatically. POSTs check the most important system components before the switch begins to forward packets. When the switch begins the POST, the port status LEDs display amber for two seconds, and then display green. As each test runs, the port status LEDs go out. 1x is the first to go out. The port status LEDs for ports 2x through 8x go out sequentially as the system completes a test.

When the POST completes successfully, the port status LEDs go out. This indicates that the switch is operational. If a test fails, the port status LED associated with the test displays

amber. The system LED also displays amber.

Not E: From Cisco IOS Software Release 11.2(8.5) SA6 onwards, the port and system LEDs both remain amber after a POST failure. In the earlier Cisco IOS Software Releases, only the LEDs of failed linked ports remained amber.

Question No: 188 – (Topic 5)

Refer to the exhibit.

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The junior network support staff provided the diagram as a recommended configuration for the first phase of a four-phase network expansion project. The entire network expansion will have over 1000 users on 14 network segments and has been allocated this IP address space.

192.168.1.1 through 192.168.5.255

192.168.100.1 through 192.168.100.255

What are three problems with this design? (Choose three.)

  1. The AREA 1 IP address space is inadequate for the number of users.

  2. The AREA 3 IP address space is inadequate for the number of users.

  3. AREA 2 could use a mask of /25 to conserve IP address space.

  4. The network address space that is provided requires a single network-wide mask.

  5. The router-to-router connection is wasting address space.

  6. The broadcast domain in AREA 1 is too large for IP to function.

Answer: A,C,E Explanation:

The given IP addresses of areas 1 and 3 along with network masks of /24 cannot accommodate 500 users so are inadequate, while the area 2 is having over capacity so its network mask can be reduced to /25 to accommodate the only 60 users it has.

Question No: 189 – (Topic 5)

Refer to the exhibit.

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For security reasons, information about RTA, including platform and IP addresses, should not be accessible from the Internet. This information should, however, be accessible to devices on the internal networks of RTA.

Which command or series of commands will accomplish these objectives?

  1. RTA(config)#no cdp run

  2. RTA(config)#no cdp enable

  3. RTA(config)#interface s0/0 RTA(config-if)#no cdp run

  4. RTA(config)#interface s0/0 RTA(config-if)#no cdp enable

Answer: D Explanation:

http://www.cisco.com/en/US/tech/tk962/technologies_tech_note09186a00801aa000.shtml# topicenab

When CDP is enabled globally using the cdp run command, it is enabled by default on all supported interfaces (except for Frame Relay multipoint subinterfaces) to send and receive CDP information. You can disable CDP on an interface that supports CDP with the no cdp enable command.

Router#show cdp neighbors

Capability Codes: R – Router, T – Trans Bridge, B – Source Route Bridge S – Switch, H – Host, I – IGMP, r – Repeater

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Router#

On this router, CDP is enabled on Serial 1 and Ethernet 0 interfaces. Disable CDP on the Serial 1 interface and

verify if the neighbor device is discovered on the serial 1 interface, as this output shows: Router#configure terminal

Enter configuration commands, one per line. End with CNTL/Z. Router(config)#interface s1

Router(config-if)#no cdp enable Router(config-if)# Z

Router#4w5D. %SYS-5-CONFIG_I: Configured from console by console

Question No: 190 – (Topic 5)

What is the purpose of the switchport command?

Switch(config-if)# switchport port-security maximum 1

Switch(config-if)# switchport port-security mac-address 0018.DE8B.4BF8

  1. It ensures that only the device with the MAC address 0018.DE8B.4BF8 will be able to connect to the port that is being configured.

  2. It informs the switch that traffic destined for MAC address 0018.DE8B.4BF8 should only be sent to the port that is being configured.

  3. It will act like an access list and the port will filter packets that have a source or destination MAC of 0018.DE8B.4BF8.

  4. The switch will shut down the port of any traffic with source MAC address of 0018.DE8B.4BF8.

Answer: A Explanation:

The first command configurs the maximum number of secure MAC addresses on a port to one. The next command specifies that MAC addresses that are allowed with port security; in this case it is just the one single device MAC. If any other device connects on that port the port will be shut down by the port security feature.

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