[Free] 2018(Aug) Dumps4cert CompTIA CLO-001 Dumps with VCE and PDF Download 121-130

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CompTIA Network Recertification Exam for Continuing Education

Question No: 121 – (Topic 4)


  1. nbtstat -a

  2. show mac address-table

  3. show interface status

  4. show ip access-list

  5. nslookup hostname

Answer: B Explanation:


Question No: 122 – (Topic 4)


  1. Cable certifier

  2. Multimeter

  3. Cable tester

  4. Toner probe

Answer: D Explanation:


Question No: 123 – (Topic 4)


Network DestinationNetmask GatewayInterface


  1. Wrong default gateway netmask

  2. Incorrect default gateway address

  3. Default gateway on the wrong interface

  4. Missing default gateway

Answer: D Explanation:


Question No: 124 – (Topic 4)

A network technician is performing a tracert command to troubleshoot a website-related issue. The following output is received for each hop in the tracert:

1 * * * Request timed out. 2 * * * Request timed out. 3 * * * Request timed out.

The technician would like to see the results of the tracert command. Which of the following will allow the technician to perform tracert on external sites but not allow outsiders to discover information from inside the network?

  1. Enable split horizon to allow internal tracert commands to pass through the firewall

  2. Enable IGMP messages out and block IGMP messages into the network

  3. Configure the firewall to allow echo reply in and echo request out of the network

  4. Install a backdoor to access the router to allow tracert messages to pass through

Answer: C Explanation:

Tracert makes use of ICMP echo packets to trace the route between two hosts. For the command to be successful, the firewall has to allow incoming echo replies and outgoing echo requests.

Question No: 125 – (Topic 4)

A technician is tasked with connecting a router to a DWDM. The technician connects the router to the multiplexer and confirms that there is a good signal level. However, the interface on the router will not come up. Which of the following is the MOST likely cause?

  1. The wrong wavelength was demuxed from the multiplexer.

  2. The SFP in the multiplexer ismalfunctioning.

  3. There is a dirty connector on the fiber optic cable.

  4. The fiber optic cable is bent in the management tray.

Answer: A Explanation:

A multiplexer (or mux) is a device that selects one of several analog or digital input signals andforwards the selected input into a single line. A demultiplexer (or demux) is a device taking a single input signal and selecting one of many data-output-lines, which is connected to the single input. Since the signal going in is good, the problem must bewith the signal

output. If the correct wavelength was demultiplexed, the interface will be displayed on the router.

Question No: 126 – (Topic 4)


  1. Distance limitation

  2. Electromagnetic interference

  3. Cross talk

  4. Speed and duplex mismatch

Answer: B Explanation:

When cables are installed near electrical devices the signal within the cable might become corrupt. The cable connecting the control station to theswitch port is now surrounded by the production machinery. Electromagnetic interference could occur when the machinery is running, causing the intermittent operation.

Question No: 127 – (Topic 4)

A technician is troubleshooting a client#39;s connection to a wireless network. The client is asked to run a quot;getinfoquot; command to list information about the existing condition.

myClient$ wificard -getinfo agrCtlRSSI:-72 agrExtRSSI:0 state:running

op mode: station lastTxRate:178 MaxRate:300

802.11 auth:open link auth:wpa2-psk


SSID:CafeWireless Channel:149,1

Given this output, which of the following has the technician learned about the wireless network? (Select TWO).

  1. The WAP is using RC4 encryption

  2. The WAP is using 802.11a

  3. The WAP is using AES encryption

  4. The WAP isusing the 2.4GHz channel

  5. The WAP is using the 5GHz channel

  6. The WAP is using 802.11g

Answer: C,E


WPA2 makes use of the Counter Mode with Cipher Block Chaining Message Authentication Code Protocol (CCMP) encryption protocol, which isan AES based protocol. The output shows that the wireless network operates on channel 149, which is a channel in the 5GHz band.

Question No: 128 – (Topic 4)

A network technician is performing a wireless survey in the office and discovers a device that was not installed by the networking team. This is an example of which of following threats?

  1. Bluesnarfing

  2. DDoS

  3. Brute force

  4. Rogue AP

Answer: D Explanation:

A rogue access point is when a wireless access point is located on a network without the

administrator being awareof it. Therefore, if the device was not installed by the networking team, the administrator would not know about it being there.

Topic 5, Industry standards, practices, and network theory

Question No: 129 – (Topic 5)

A network technician is utilizing a network protocol analyzer to troubleshoot issues that a user has been experiencing when uploading work to the internal FTP server. Which of the following default port numbers should the technician set the analyzer to highlight when creating a report? (Select TWO).

  1. 20

  2. 21

  3. 22

  4. 23

  5. 67

  6. 68

  7. 69

Answer: A,B Explanation:

FTP (File Transfer Protocol) is used for transferring files between an FTP client and an FTP

server. FTP uses TCP Ports 20 and 21.

Question No: 130 – (Topic 5)

A network technician is attempting to connect a new host to existing manufacturing equipment on an Ethernet network. The technician is having issues trying to establish communication between the old equipment and the new host. The technician checks the cabling for breaks and finds that the CAT3 cable in use is in perfect condition. Which of the following should the technician check to ensure the new host will connect?

  1. Confirm the new host is using 10GBaseSR due to the manufacturing environment

  2. Confirm the new host is compatible with 10BaseT Ethernet

  3. Confirm the existing 10Base2 equipment is using the proper frame type

  4. Confirm that CSMA/CD is disabled on the Ethernet network

Answer: B Explanation:

The question states that the equipment is old and that CAT3 cabling is being used. 10BaseT Ethernet networks are old and slow by today’s standards. 10BaseT Ethernet networks use CAT3 UTP cabling and offer a maximum bandwidth of just 10Mpbs.

A new host computer nowadays will have a network card that supports 1000Mpbs to be used with CAT5, CAT5e or CAT6 network cables in a 1000BaseT network. In this question, we need to check that the network card on thenew host computer is backward-compatible with the old 10BaseT network.

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