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ITN Chapter 11 Exam Online

Last Updated on May 20, 2021 by Admin

ITN Chapter 11 Exam Online

ITN -- Chapter 11 Exam

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ITN — Chapter 11 Exam

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  1. Question 1 of 24
    1. Question
    1 points
    A newly hired network technician is given the task of ordering new hardware for a small business with a large growth forecast. Which primary factor should the technician be concerned with when choosing the new devices?
    Correct

    Incorrect

    In a small business with a large growth forecast, the primary influencing factor would be the ability of devices to support modularity. Devices with a fixed type/number of interfaces would not support growth. Redundancy is an important factor, but typically found in large enterprises. Network monitoring is also an important consideration, but not as important as modularity.

    Hint

    In a small business with a large growth forecast, the primary influencing factor would be the ability of devices to support modularity. Devices with a fixed type/number of interfaces would not support growth. Redundancy is an important factor, but typically found in large enterprises. Network monitoring is also an important consideration, but not as important as modularity.

  2. Question 2 of 24
    2. Question
    1 points
    Which network design consideration would be more important to a large corporation than to a small business?
    Correct

    Incorrect

    Small businesses today do need Internet access and use an Internet router to provide this need. A switch is required to connect the two host devices and any IP phones or network devices such as a printer or a scanner. The switch may be integrated into the router. A firewall is needed to protect the business computing assets. Redundancy is not normally found in very small companies, but slightly larger small companies might use port density redundancy or have redundant Internet providers/links.

    Hint
    Small businesses today do need Internet access and use an Internet router to provide this need. A switch is required to connect the two host devices and any IP phones or network devices such as a printer or a scanner. The switch may be integrated into the router. A firewall is needed to protect the business computing assets. Redundancy is not normally found in very small companies, but slightly larger small companies might use port density redundancy or have redundant Internet providers/links.
  3. Question 3 of 24
    3. Question
    2 points
    Which two traffic types require delay sensitive delivery? (Choose two.)
    Correct

    Incorrect

    Voice and video traffic have delay sensitive characteristics and must be given priority over other traffic types such as web, email, and file transfer traffic.

    Hint
    Voice and video traffic have delay sensitive characteristics and must be given priority over other traffic types such as web, email, and file transfer traffic.
  4. Question 4 of 24
    4. Question
    1 points
    What service defines the protocols and technologies that implement the transmission of voice packets over an IP network?
    Correct

    Incorrect

    VoIP is a technology that converts analog voice signals into digital IP packets that can be sent over an IP network.

    Hint
    VoIP is a technology that converts analog voice signals into digital IP packets that can be sent over an IP network.
  5. Question 5 of 24
    5. Question
    3 points
    A network administrator for a small company is contemplating how to scale the network over the next three years to accommodate projected growth. Which three types of information should be used to plan for network growth? (Choose three.)
    Correct

    Incorrect

    Several elements that are needed to scale a network include documentation of the physical and logical topology, a list of devices that are used on the network, and an analysis of the traffic on the network.

    Hint
    Several elements that are needed to scale a network include documentation of the physical and logical topology, a list of devices that are used on the network, and an analysis of the traffic on the network.
  6. Question 6 of 24
    6. Question
    2 points
    Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.)
    Correct

    Incorrect

    Traffic flow patterns should be gathered during peak utilization times to get a good representation of the different traffic types. The capture should also be performed on different network segments because some traffic will be local to a particular segment.

    Hint
    Traffic flow patterns should be gathered during peak utilization times to get a good representation of the different traffic types. The capture should also be performed on different network segments because some traffic will be local to a particular segment.
  7. Question 7 of 24
    7. Question
    1 points
    Some routers and switches in a wiring closet malfunctioned after an air conditioning unit failed. What type of threat does this situation describe?
    Correct

    Incorrect

    The four classes of threats are as follows:

    • Hardware threats – physical damage to servers, routers, switches, cabling plant, and workstations
    • Environmental threats – temperature extremes (too hot or too cold) or humidity extremes (too wet or too dry)
    • Electrical threats – voltage spikes, insufficient supply voltage (brownouts), unconditioned power (noise), and total power loss
    • Maintenance threats – poor handling of key electrical components (electrostatic discharge), lack of critical spare parts, poor cabling, and poor labeling
    Hint

    The four classes of threats are as follows:

    • Hardware threats – physical damage to servers, routers, switches, cabling plant, and workstations
    • Environmental threats – temperature extremes (too hot or too cold) or humidity extremes (too wet or too dry)
    • Electrical threats – voltage spikes, insufficient supply voltage (brownouts), unconditioned power (noise), and total power loss
    • Maintenance threats – poor handling of key electrical components (electrostatic discharge), lack of critical spare parts, poor cabling, and poor labeling
  8. Question 8 of 24
    8. Question
    1 points
    Which type of network threat is intended to prevent authorized users from accessing resources?
    Correct

    Incorrect

    Network reconnaissance attacks involve the unauthorized discovery and mapping of the network and network systems. Access attacks and trust exploitation involve unauthorized manipulation of data and access to systems or user privileges. DoS, or Denial of Service attacks, are intended to prevent legitimate users and devices from accessing network resources.

    Hint
    Network reconnaissance attacks involve the unauthorized discovery and mapping of the network and network systems. Access attacks and trust exploitation involve unauthorized manipulation of data and access to systems or user privileges. DoS, or Denial of Service attacks, are intended to prevent legitimate users and devices from accessing network resources.
  9. Question 9 of 24
    9. Question
    2 points
    Which two actions can be taken to prevent a successful network attack on an email server account? (Choose two.)
    Correct

    Incorrect

    One of the most common types of access attack uses a packet sniffer to yield user accounts and passwords that are transmitted as clear text. Repeated attempts to log in to a server to gain unauthorized access constitute another type of access attack. Limiting the number of attempts to log in to the server and using encrypted passwords will help prevent successful logins through these types of access attack.

    Hint

    One of the most common types of access attack uses a packet sniffer to yield user accounts and passwords that are transmitted as clear text. Repeated attempts to log in to a server to gain unauthorized access constitute another type of access attack. Limiting the number of attempts to log in to the server and using encrypted passwords will help prevent successful logins through these types of access attack.

  10. Question 10 of 24
    10. Question
    1 points
    Which firewall feature is used to ensure that packets coming into a network are legitimate responses initiated from internal hosts?
    Correct

    Incorrect

    Stateful packet inspection on a firewall checks that incoming packets are actually legitimate responses to requests originating from hosts inside the network. Packet filtering can be used to permit or deny access to resources based on IP or MAC address. Application filtering can permit or deny access based on port number. URL filtering is used to permit or deny access based on URL or on keywords.

    Hint
    Stateful packet inspection on a firewall checks that incoming packets are actually legitimate responses to requests originating from hosts inside the network. Packet filtering can be used to permit or deny access to resources based on IP or MAC address. Application filtering can permit or deny access based on port number. URL filtering is used to permit or deny access based on URL or on keywords.
  11. Question 11 of 24
    11. Question
    1 points
    What is the purpose of the network security authentication function?
    Correct

    Incorrect

    Authentication, authorization, and accounting are network services collectively known as AAA. Authentication requires users to prove who they are. Authorization determines which resources the user can access. Accounting keeps track of the actions of the user.

    Hint
    Authentication, authorization, and accounting are network services collectively known as AAA. Authentication requires users to prove who they are. Authorization determines which resources the user can access. Accounting keeps track of the actions of the user.
  12. Question 12 of 24
    12. Question
    1 points
    A network administrator is issuing the login block-for 180 attempts 2 within 30 command on a router. Which threat is the network administrator trying to prevent?
    Correct

    Incorrect

    The login block-for 180 attempts 2 within 30 command will cause the device to block authentication after 2 unsuccessful attempts within 30 seconds for a duration of 180 seconds. A device inspecting the traffic on a link has nothing to do with the router. The router configuration cannot prevent unauthorized access to the equipment room. A worm would not attempt to access the router to propagate to another part of the network.

    Hint
    The login block-for 180 attempts 2 within 30 command will cause the device to block authentication after 2 unsuccessful attempts within 30 seconds for a duration of 180 seconds. A device inspecting the traffic on a link has nothing to do with the router. The router configuration cannot prevent unauthorized access to the equipment room. A worm would not attempt to access the router to propagate to another part of the network.
  13. Question 13 of 24
    13. Question
    1 points
    What is the purpose of using SSH to connect to a router?
    Correct

    Incorrect

  14. Question 14 of 24
    14. Question
    2 points
    Which two steps are required before SSH can be enabled on a Cisco router? (Choose two.)
    Correct

    Incorrect

    There are four steps to configure SSH on a Cisco router. First, set the host name and domain name. Second, generate a set of RSA keys to be used for encrypting and decrypting the traffic. Third, create the user IDs and passwords of the users who will be connecting. Lastly, enable SSH on the vty lines on the router. SSH does not need to be set up on any physical interfaces, nor does an external authentication server need to be used. While it is a good idea to configure a banner to display legal information for connecting users, it is not required to enable SSH.​

    Hint
    There are four steps to configure SSH on a Cisco router. First, set the host name and domain name. Second, generate a set of RSA keys to be used for encrypting and decrypting the traffic. Third, create the user IDs and passwords of the users who will be connecting. Lastly, enable SSH on the vty lines on the router. SSH does not need to be set up on any physical interfaces, nor does an external authentication server need to be used. While it is a good idea to configure a banner to display legal information for connecting users, it is not required to enable SSH.​
  15. Question 15 of 24
    15. Question
    1 points

    Refer to the exhibit. Baseline documentation for a small company had ping round trip time statistics of 36/97/132 between hosts H1 and H3. Today the network administrator checked connectivity by pinging between hosts H1 and H3 that resulted in a round trip time of 1458/2390/6066. What does this indicate to the network administrator?

    ITN Chapter 11 Exam Answers 002
    ITN Chapter 11 Exam Answers 002

    Correct

    Incorrect

    Ping round trip time statistics are shown in milliseconds. The larger the number the more delay. A baseline is critical in times of slow performance. By looking at the documentation for the performance when the network is performing fine and comparing it to information when there is a problem, a network administrator can resolve problems faster.

    Hint
    Ping round trip time statistics are shown in milliseconds. The larger the number the more delay. A baseline is critical in times of slow performance. By looking at the documentation for the performance when the network is performing fine and comparing it to information when there is a problem, a network administrator can resolve problems faster.
  16. Question 16 of 24
    16. Question
    1 points
    When should an administrator establish a network baseline?
    Correct

    Incorrect

    An effective network baseline can be established by monitoring the traffic at regular intervals. This allows the administrator to take note when any deviance from the established norm occurs in the network.

    Hint
    An effective network baseline can be established by monitoring the traffic at regular intervals. This allows the administrator to take note when any deviance from the established norm occurs in the network.
  17. Question 17 of 24
    17. Question
    1 points

    Refer to the exhibit. An administrator is trying to troubleshoot connectivity between PC1 and PC2 and uses the tracert command from PC1 to do it. Based on the displayed output, where should the administrator begin troubleshooting?

    ITN Chapter 11 Exam Answers 001
    ITN Chapter 11 Exam Answers 001

    Correct

    Incorrect

    Tracert is used to trace the path a packet takes. The only successful response was from the first device along the path on the same LAN as the sending host. The first device is the default gateway on router R1. The administrator should therefore start troubleshooting at R1.

    Hint
    Tracert is used to trace the path a packet takes. The only successful response was from the first device along the path on the same LAN as the sending host. The first device is the default gateway on router R1. The administrator should therefore start troubleshooting at R1.
  18. Question 18 of 24
    18. Question
    1 points
    What information about a Cisco router can be verified using the show version command?
    Correct

    Incorrect

    The value of the configuration register can be verified with the show version command.

    Hint
    The value of the configuration register can be verified with the show version command.
  19. Question 19 of 24
    19. Question
    1 points
    Which statement is true about CDP on a Cisco device?​
    Correct

    Incorrect

    CDP is a Cisco-proprietary protocol that can be disabled globally by using the no cdp run global configuration command, or disabled on a specific interface, by using the no cdp enable interface configuration command. Because CDP operates at the data link layer, two or more Cisco network devices, such as routers can learn about each other even if Layer 3 connectivity does not exist. The show cdp neighbors detail command reveals the IP address of a neighboring device regardless of whether you can ping the neighbor.

    Hint
    CDP is a Cisco-proprietary protocol that can be disabled globally by using the no cdp run global configuration command, or disabled on a specific interface, by using the no cdp enable interface configuration command. Because CDP operates at the data link layer, two or more Cisco network devices, such as routers can learn about each other even if Layer 3 connectivity does not exist. The show cdp neighbors detail command reveals the IP address of a neighboring device regardless of whether you can ping the neighbor.
  20. Question 20 of 24
    20. Question
    1 points
    A network administrator for a small campus network has issued the show ip interface brief command on a switch. What is the administrator verifying with this command?
    Correct

    Incorrect

    The show ip interface brief command is used to verify the status and IP address configuration of the physical and switch virtual interfaces (SVI).

    Hint

    The show ip interface brief command is used to verify the status and IP address configuration of the physical and switch virtual interfaces (SVI).

  21. Question 21 of 24
    21. Question
    1 points
    A network technician issues the arp -d * command on a PC after the router that is connected to the LAN is reconfigured. What is the result after this command is issued?
    Correct

    Incorrect

    Issuing the arp –d * command on a PC will clear the ARP cache content. This is helpful when a network technician wants to ensure the cache is populated with updated information.

  22. Question 22 of 24
    22. Question
    1 points
    A network technician issues the C:\> tracert -6 http://www.cisco.com command on a Windows PC. What is the purpose of the -6 command option?
    Correct

    Incorrect

    The -6 option in the command C:\> tracert -6 http://www.cisco.com is used to force the trace to use IPv6.

    Hint
    The -6 option in the command C:\> tracert -6 http://www.cisco.com is used to force the trace to use IPv6.
  23. Question 23 of 24
    23. Question
    1 points
    Which command should be used on a Cisco router or switch to allow log messages to be displayed on remotely connected sessions using Telnet or SSH?
    Correct

    Incorrect

    The terminal monitor command is very important to use when log messages appear. Log messages appear by default when a user is directly consoled into a Cisco device, but require the terminal monitor command to be entered when a user is accessing a network device remotely.

    Hint
    The terminal monitor command is very important to use when log messages appear. Log messages appear by default when a user is directly consoled into a Cisco device, but require the terminal monitor command to be entered when a user is accessing a network device remotely.
  24. Question 24 of 24
    24. Question
    4 points

    Match the type of information security threat to the scenario. (Not all options are used.)

    Sort elements
    • installing virus code to destroy surveillance recordings for certain days
    • pretending to be someone else by using stolen personal information to apply for a credit card
    • preventing users from accessing a website by sending a large number of link requests in a short period
    • obtaining trade secret documents illegally
    • cracking the password of an administrator account on a server
    • data loss
      • identity theft
        • disruption of service
          • information theft
            Correct

            Incorrect

            After an intruder gains access to a network, common network threats are as follows:

            • Information theft
            • Identity theft
            • Data loss or manipulation
            • Disruption of service

            Cracking the password for a known username is a type of access attack.

            Hint

            After an intruder gains access to a network, common network threats are as follows:

            • Information theft
            • Identity theft
            • Data loss or manipulation
            • Disruption of service

            Cracking the password for a known username is a type of access attack.

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