CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 561:

  A company's cloud model consists of the following:

  An on-premises data center An IaaS cloud provider A private-direct connection from on premises to IaaS

  Which of the following best describes the deployment model the company is using?

  A. Public
  B. Private
  C. Hybrid
  D. Community
  C. Hybrid

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  Explanation/Reference:

• Question 562:

  A network administrator has received calls every day for the past few weeks from three users who cannot access the network. The administrator asks all the users to reboot their PCs, but the same users still cannot access the system. The following day, three different users report the same issue, and the administrator asks them all to reboot their PCs; however, this does not fix the issue. Which of the following is MOST likely occurring?

  A. Incorrect firewall settings
  B. Inappropriate VLAN assignment
  C. Hardware failure
  D. Overloaded CAM table in switch
  E. DHCP scope exhaustion
  E. DHCP scope exhaustion

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  Explanation/Reference:

  Based on the information provided, it is unlikely that the CAM table is the problem. The CAM table is used in switches to map MAC addresses to switch ports and is typically updated dynamically as devices communicate on the network. If there were a problem with the CAM table, it would typically result in connectivity issues for all users connected to the affected switch, not just a few.

• Question 563:

  Which of the following records can be used to track the number of changes on a DNS zone?

  A. SOA
  B. SRV
  C. PTR
  D. NS
  A. SOA

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  Explanation/Reference:

  The DNS `start of authority' (SOA) record stores important information about a domain or zone such as the email address of the administrator, when the domain was last updated, and how long the server should wait between refreshes. All DNS zones need an SOA record in order to conform to IETF standards. SOA records are also important for zone transfers.

• Question 564:

  A VOIP phone is plugged in to a port but cannot receive calls. Which Of the following needs to be done on the port to address the issue?

  A. Trunk all VLANs on the port.
  B. Configure the native VLAN.
  C. Tag the traffic to voice VLAN.
  D. Disable VLANs.
  C. Tag the traffic to voice VLAN.

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  Explanation/Reference:

  To enable a VOIP phone to receive calls on a port, the traffic needs to be tagged to the voice VLAN that is configured on the switch. This allows the phone to communicate with the voice network and the PBX server. Tagging the traffic also separates the voice traffic from the data traffic that may be coming from a computer connected to the phone. The port should be configured to tag the traffic for the voice VLAN and untag the traffic for the data VLAN1. Trunking all VLANs on the port is unnecessary and may cause security issues. Configuring the native VLAN is not relevant for this issue. Disabling VLANs would prevent the phone from working at all. References: Optical Fiber Connectors ?CompTIA Network+ N10-007 ?2.13 VoIP and computer on separate VLANs through one cable1

• Question 565:

  Which of the following is a hybrid routing protocol?

  A. BGP
  B. RIPv2
  C. OSPF
  D. EIGRP
  D. EIGRP

• Question 566:

  A bank installed a new smart TV to stream online video services, but the smart TV was not able to connect to the branch Wi-Fi. The next day, a technician was able to connect the TV to the Wi-Fi, but a bank laptop lost network access at the same time. Which of the following is the MOST likely cause?

  A. DHCP scope exhaustion
  B. AP configuration reset
  C. Hidden SSID
  D. Channel overlap
  D. Channel overlap

• Question 567:

  A network technician has multimode fiber optic cable available in an existing IDF. Which of the following Ethernet standards should the technician use to connect the network switch to the existing fiber?

  A. 10GBaseT
  B. 1000BaseT
  C. 1000BaseSX
  D. 1000BaseLX
  C. 1000BaseSX

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  Explanation/Reference:

  1000BaseSX is an Ethernet standard that should be used to connect the network switch to the existing multimode fiber optic cable. 1000BaseSX is a Gigabit Ethernet standard that uses short-wavelength laser (850 nm) over multimode fiber optic cable. It can support distances up to 550 meters depending on the cable type and quality. It is suitable for short-range network segments such as campus or building backbone networks.

  References: https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/gigabit-ethernet-gbic-sfp-modules/product_data_sheet09186a008014cb5e.html

• Question 568:

  A Network engineer is investigating issues on a Layer 2 Switch. The department typically snares a Switchport during meetings for presentations, but atter the first user Shares, no Other users can connect. Which Of the following is MOST likely related to this issue?

  A. Spanning Tree Protocol is enabled on the switch.
  B. VLAN trunking is enabled on the switch.
  C. Port security is configured on the switch.
  D. Dynamic ARP inspection is configured on the switch.
  C. Port security is configured on the switch.

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  Explanation/Reference:

  The most likely issue related to this scenario is that port security is configured on the switch. Port security is a Layer 2 security feature that restricts access to a switch port based on the MAC address of the device that is connected to it. When a port reaches its maximum number of allowed MAC addresses, it will prevent any further connections to that port. If the department is sharing a switchport during meetings for presentations, then it is possible that the maximum number of allowed MAC addresses has already been reached by the first user, and therefore no other users can connect.

• Question 569:

  A technician is implementing a new wireless network to serve guests at a local office. The network needs to provide Internet access but disallow associated stations from communicating with each other. Which of the following would BEST accomplish this requirement?

  A. Wireless client isolation
  B. Port security
  C. Device geofencing
  D. DHCP snooping
  A. Wireless client isolation

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  Explanation/Reference:

  Wireless client isolation is a feature on wireless routers that limits the connectivity between wireless devices connected to the same network. It prevents them from accessing resources on other wireless or wired devices, as a security measure to reduce attacks and threats. This feature can be useful for guest and BYOD SSIDs, but it can also be disabled on the router's settings.

  References: https://www.howtogeek.com/179089/lock-down-your-wi-fi-network-with-your-routers-wireless-isolation-option/

• Question 570:

  Which of the following should be used to associate an IPv6 address with a domain name?

  A. AAAA
  B. A
  C. SOA
  D. TXT
  A. AAAA

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  Explanation/Reference:

  An AAAA record is a type of DNS record that maps a domain name to an IPv6 address. It is similar to an A record, which maps a domain name to an IPv4 address, but it uses a 128-bit address instead of a 32-bit one. An AAAA record allows a domain name to be resolved by both IPv4 and IPv6 clients, and it is necessary for accessing websites and services that use IPv6.