CompTIA N10-009 Online Practice Questions and Exam Preparation

CompTIA N10-009 Online Questions & Answers

• Question 361:

  An administrator wants to find the top destination for traffic across the infrastructure on a specific day.

  Which of the following should the administrator use?

  A. SNMP
  B. Packet capture
  C. NetFlow
  D. traceroute
  C. NetFlow

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  Explanation

  NetFlow collects traffic flow metadata such as source and destination IP addresses, ports, protocols, and traffic volume. This allows administrators to identify top talkers, top destinations, and traffic patterns over time.

  SNMP is used to monitor device performance and interface statistics but does not provide detailed flow-level traffic analysis.

  Packet capture provides detailed packet-level data but is not efficient for large-scale or long-term traffic analysis.

  Traceroute is used to identify network paths and latency, not traffic patterns.

  Therefore, NetFlow is the correct answer.

• Question 362:

  Newly crimped 26ft (8m) STP Cat 6 patch cables were recently installed in one room to replace cables that were damaged by a vacuum cleaner. Now, users in that room are unable to connect to the network. A network technician tests the existing cables first. The 177ft (54m) cable that runs from the core switch to the access switch on the floor is working, as is the 115ft (35m) cable run from the access switch to the wall jack in the office.

  Which of the following is the most likely reason the users cannot connect to the network?

  A. Mixed UTP and STP cables are being used.
  B. The patch cables are not plenum rated.
  C. The cable distance is exceeded.
  D. An incorrect pinout on the patch cable is being used.
  D. An incorrect pinout on the patch cable is being used.

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  Explanation

  An incorrect pinout on the patch cable could prevent network connectivity due to mismatched wiring. Even if the cables are the correct length and type, a pinout issue can cause continuity problems and prevent data transmission. Proper crimping with the correct pinout is essential for network cables to function. (Reference: CompTIA Network+ Study Guide, Chapter on Network Media and Topologies)

• Question 363:

  A network administrator recently upgraded a wireless infrastructure with new APs. Users report that when stationary, the wireless connection drops and reconnects every 20 to 30 seconds. While reviewing logs, the administrator notices the APs are changing channels.

  Which of the following is the most likely reason for the service interruptions?

  A. Channel interference
  B. Roaming misconfiguration
  C. Network congestion
  D. Insufficient wireless coverage
  A. Channel interference

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  Explanation

  If APs are changing channels frequently, it indicates automatic channel selection due to interference. This can cause temporary disconnections as the APs switch frequencies.

  Why:

  Option A. Channel interference - Correct answer. APs change channels automatically to avoid interference, causing disconnections.

  Option B. Roaming misconfiguration-Roaming only affects moving users, but users report issues while stationary.

  Option C. Network congestion - Causes slow speeds not frequent disconnects

  Option D. Insufficient wireless coverage - Would cause weak signals, but not channel switching issues.

• Question 364:

  Which of the following is used to stage copies of a websitecloser to geographically dispersed users?

  A. VPN
  B. CDN
  C. SAN
  D. SDN
  B. CDN

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  Explanation

  A Content Delivery Network (CDN) caches website content across multiple geographically distributed servers reduce latency and improve load times to for users worldwide.

  Breakdown of Options:

  Option A. VPN - Encrypts network connections, does not distribute website content.

  Option B. CDN - Correct answer. network of caching servers A that delivers web content faster.

  Option C. SAN - Storage Area Network not related to web content distribution,.

  Option D. SDN - Software-defined networking, which controls network flows but does not stage website content.

• Question 365:

  An administrator is setting up an SNMP server for use in the enterprise network and needs to create device IDs within a MIB.

  Which of the following describes the function of a MIB?

  A. DHCP relay device
  B. Policy enforcement point
  C. Definition file for event translation
  D. Network access controller
  C. Definition file for event translation

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  Explanation

  MIB (Management Information Base): A MIB is a database used for managing the entities in a communication network. The MIB is used by Simple Network Management Protocol (SNMP) to translate events into a readable format, enabling network administrators to manage and monitor network devices effectively. uk.co.certification.

• Question 366:

  Which of the following is used to estimate the average life span of a device?

  A. RTO
  B. RPO
  C. MTBF
  D. MTTR
  C. MTBF

• Question 367:

  Which of the following can IoT devices most likely be connected to?

  A. Router
  B. Firewall
  C. Proxy server
  D. Access point
  A. Router

• Question 368:

  The security department is looking to install a new IP-based camera. Plugging the camera into the available Ethernet jack does not power on the camera. Upon further investigation, the cable tests fine, and it does provide power to a VoIP phone.

  Which of the following is MOST likely causing the issue?

  A. The brown pair UTP has a short.
  B. The camera requires 802.3at power
  C. The camera requires Cat 7 cabling.
  D. The switchport has PoE disabled.
  B. The camera requires 802.3at power

• Question 369:

  Which of the following security methods uses physical characteristics of a person to authorize access to a location?

  A. Access control vestibule
  B. Palm scanner
  C. PIN pad
  D. Digital card reader
  E. Photo ID
  B. Palm scanner

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  Explanation

  A palm scanner is a security method that uses physical characteristics of a person, specifically the unique features of their palm or hand, to authorize access to a location. This biometric method is based on the individual's palm print, which is unique to each person.

• Question 370:

  A medical clinic recently configured a guest wireless network on the existing router. Since then, guests have been changing the music on the speaker system.

  Which of the following actions should the clinic take to prevent unauthorized access? (Select two).

  A. Isolate smart devices to their own network segment.
  B. Configure IPS to prevent guests from making changes.
  C. Install a new AP on the network.
  D. Set up a syslog server to log who is making changes.
  E. Change the default credentials.
  F. Configure GRE on the wireless router.
  A. Isolate smart devices to their own network segment.
  E. Change the default credentials.

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  Explanation

  Option A. Isolate smart devices to their own network segment: Network segmentation using VLANs or separate SSIDs ensures that smart devices (like speakers) are not on the same network as guests, preventing unauthorized control.

  Option E. Change the default credentials: Many IoT devices (e.g., smart speakers) come with default usernames and passwords. If these are not changed, unauthorized users can easily take control.

  Why not the other options?

  Option B. Configure IPS: IPS (Intrusion Prevention System) detects threats but cannot block specific guest actions on an IoT device.

  Option C. Install a new AP: A new access point does not solve the unauthorized control issue.

  Option D. Set up a syslog server: Helps with logging, but does not prevent unauthorized access.

  Option F. Configure GRE: Generic Routing Encapsulation (GRE) is used for VPN tunneling, which is irrelevant in this case.