CompTIA N10-009 Online Practice Questions and Exam Preparation

CompTIA N10-009 Online Questions & Answers

• Question 211:

  A company needs a disaster recovery solution with hardware ready but without real-time data replication due to budget constraints.

  Which site type is MOST appropriate?

  A. Cold site
  B. Warm site
  C. Hot site
  D. Active-active site
  B. Warm site

• Question 212:

  A network administrator received complaints of intermittent network connectivity issues. The administrator investigates and finds that the network design contains potential loop scenarios.

  Which of the following should the administrator do?

  A. Enable spanning tree.
  B. Configure port security.
  C. Change switch port speed limits.
  D. Enforce 802. IQ tagging.
  A. Enable spanning tree.

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  Explanation

  Spanning tree is a protocol that prevents network loops by dynamically disabling or enabling switch ports based on the network topology. Network loops can cause intermittent connectivity issues, such as broadcast storms, MAC address table instability, and multiple frame transmission. By enabling spanning tree, the network administrator can ensure that there is only one active path between any two network devices at any given time.

  References:

  CompTIA Network+ N10-008 Certification Exam Objectives, page 91 CompTIA Network+ Cert Guide: Switching and Virtual LANs, page 172

• Question 213:

  Which of the following is a major difference between a router and a Layer 3 switch?

  A. A router can perform PAT, but a Layer 3 switch cannot.
  B. A Layer 3 switch is more efficient than a router.
  C. A router uses higher speed interfaces than a Layer 3 switch.
  D. A Layer 3 switch can run more routing protocols than a router.
  B. A Layer 3 switch is more efficient than a router.

• Question 214:

  A junior network administrator gets a text message from a number posing as the domain registrar of the firm. The administrator is tricked into providing global administrator credentials.

  Which of the following attacks is taking place?

  A. DNS poisoning
  B. ARP spoofing
  C. Vishing
  D. Smishing
  D. Smishing

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  Explanation

  Smishing (SMS phishing) occurs when attackers send fraudulent text messages pretending to be a trusted source, tricking the victim into giving up sensitive credentials. Since this came via text message, it qualifies as smishing.

  Option A: DNS poisoning corrupts name resolution.

  Option B: ARP spoofing manipulates MAC-to-IP mappings.

  Option C: Vishing is phishing via voice calls, not text.

  References:

  Domain: Network Security -- Social engineering, phishing types (smishing, vishing, spear phishing).

• Question 215:

  Which of the following source control features allows an administrator to test a new configuration without changing the primary configuration?

  A. Central repository
  B. Conflict identification
  C. Branching
  D. Version control
  C. Branching

• Question 216:

  An organization has experienced an increase in malicious spear-phishing campaigns and wants to mitigate the risk of hyperlinks from inbound emails.

  Which of the following appliances would best enable this capability?

  A. Email protection gateway
  B. DNS server
  C. Proxy server
  D. Endpoint email client
  E. Sandbox
  A. Email protection gateway

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  Explanation

  An email protection gateway is an appliance that can filter and block malicious emails and attachments before they reach the recipients. An email protection gateway can mitigate the risk of hyperlinks from inbound emails by scanning the links for malicious content, rewriting the links to point to a safe domain, or blocking the links altogether. An email protection gateway can also perform other functions such as spam filtering, antivirus scanning, encryption, and data loss prevention.

  A DNS server, a proxy server, an endpoint email client, and a sandbox are not appliances that can enable this capability, as they have different purposes and functions.

• Question 217:

  Users cannot connect to an internal website with an IP address 10.249.3.76. A network administrator runs a command and receives the following output:

  

  Which of the following command-line tools is the network administrator using?

  A. tracert
  B. netstat
  C. tcpdump
  D. nmap
  A. tracert

• Question 218:

  A virtual machine has the following configuration:

  Pv4 address: 169.254.10.10

  ubnet mask: 255.255.0.0

  The virtual machine can reach colocated systems but cannot reach external addresses on the Internet.

  Which of the following Is most likely the root cause?

  A. The subnet mask is incorrect.
  B. The DHCP server is offline.
  C. The IP address is an RFC1918 private address.
  D. The DNS server is unreachable.
  B. The DHCP server is offline.

• Question 219:

  A network administrator wants to configure a backup route in case the primary route fails. A dynamic routing protocol is not installed on the router.

  Which of the following routing features should the administrator choose to accomplish this task?

  A. Neighbor adjacency
  B. Link state flooding
  C. Administrative distance
  D. Hop count
  C. Administrative distance

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  Explanation

  Configuring Static Routes with Administrative Distance Example Configuration: plaintext Copy code

  ip route 192.168.1.0 255.255.255.0 10.0.0.1 1

  ip route 192.168.1.0 255.255.255.0 10.0.0.2 10 References:

  CompTIA Network+ guide explains the concept of administrative distance and its use in static routing configuration (see page Ref 9Basic Configuration Commands).

• Question 220:

  SIMULATION

  A network technician needs to resolve some issues with a customer's SOHO network.

  The customer reports that some of the devices are not connecting to the network, while others appear to work as intended.

  INSTRUCTIONS

  Troubleshoot all the network components and review the cable test results by Clicking on each device and cable.

  Diagnose the appropriate component(s) by identifying any components with a problem and recommend a solution to correct each problem.

  

  

  

  Cable Test Results: Cable 1:

  

  Cable 2:

  

  Cable 3:

  

  Cable 4:

  

  

  

  A. See the for detailed information on this simulation.
  B. PlaceHolder
  C. PlaceHolder
  D. PlaceHolder
  A. See the for detailed information on this simulation.

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  Explanation

  See the for detailed information on this simulation. (Note: Ips will be change on each simulation task, so we have given example answer for the understanding)

  To troubleshoot all the network components and review the cable test results, you can use the following steps:

  Click on each device and cable to open its information window. Review the information and identify any problems or errors that may affect the network connectivity or performance.

  Diagnose the appropriate component(s) by identifying any components with a problem and recommend a solution to correct each problem. Fill in the remediation form using the drop-down menus provided. Here is an example of how to fill in the remediation form for PC1:

  The component with a problem is PC1. The problem is Incorrect IP address.

  The solution is Change the IP address to 192.168.1.10. You can use the same steps to fill in the remediation form for other components.

  To enter commands in each device, you can use the following steps:

  Click on the device to open its terminal window.

  Enter the command ipconfig /all to display the IP configuration of the device, including its IP address, subnet mask, default gateway, and DNS servers. Enter the command ping to test the connectivity and reachability to another device on the network by sending and receiving echo packets. Replace with the IP address of the destination device, such as 192.168.1.1 for Core Switch 1. Enter the command tracert to trace the route and measure the latency of packets from the device to another device on the network by sending and receiving packets with increasing TTL values. Replace with the IP address of the destination device, such as 192.168.1.1 for Core Switch 1. Here is an example of how to enter commands in PC1:

  Click on PC1 to open its terminal window.

  Enter the command ipconfig /all to display the IP configuration of PC1. You should see that PC1 has an incorrect IP address of 192.168.2.10, which belongs to VLAN 2 instead of VLAN 1. Enter the command ping 192.168.1.1 to test the connectivity to Core Switch 1. You should see that PC1 is unable to ping Core Switch 1 because they are on different subnets.

  Enter the command tracert 192.168.1.1 to trace the route to Core Switch 1. You should see that PC1 is unable to reach Core Switch 1 because there is no route between them.

  You can use the same steps to enter commands in other devices, such as PC3, PC4, PC5, and Server 1.