CompTIA Network+ N10-009 Certification Exam

CompTIA Network+ N10-009

The CompTIA Network+ N10-009 certification validates the skills needed to design, configure, manage and troubleshoot wired and wireless networks. The exam covers networking concepts, network implementation, network operations, network security, and network troubleshooting. Candidates demonstrate knowledge of the OSI model, ports and protocols, IPv4 addressing and subnetting, routing and switching, wireless technologies, cloud connectivity, monitoring, disaster recovery, IPv4 and IPv6 services, security concepts and defences, and troubleshooting cabling, services and performance. The exam consists of 90 questions over 90 minutes, with a 75% passing score.

Certification Overview

  • Exam name: Network+ N10-009
  • Vendor: CompTIA
  • Exam code: N10-009
  • Duration: 90 minutes
  • Total questions: 90
  • Passing score: 75%

Who Should Take This Exam?

Network Administrator, Network Technician, Help Desk Technician, Systems Administrator, NOC Technician, Network Field Technician, Junior Network Engineer

Prerequisites

No formal prerequisite. CompTIA recommends A+ and nine to twelve months of hands-on experience in a networking role.

Topics Covered

  • Networking Concepts
  • Network Implementation
  • Network Operations
  • Network Security
  • Network Troubleshooting

Question Types

  • Multiple Choice (Single Answer)
  • Multiple Choice (Multiple Answers)
  • Drag and Drop
  • Scenario-Based

Network+ N10-009 Practice Questions

Our question bank contains 910+ practice questions for this certification. Sample questions from each exam chapter. Expand a question to see the answer choices. With a subscription, you get unlimited practice exams with randomized questions from our full question bank.

Networking Concepts

Which OSI layer is responsible for logical addressing and the routing of packets between networks?
  • Layer 2 - Data Link
  • Layer 4 - Transport
  • Layer 3 - Network
  • Layer 5 - Session
What is the name of the protocol data unit (PDU) created by TCP at the Transport layer?
  • Segment
  • Frame
  • Packet
  • Bit
A technician needs to open a firewall rule for secure remote command-line administration of a Linux server. Which default port does SSH use?
  • TCP 23
  • TCP 3389
  • TCP 21
  • TCP 22

Network Implementation

Which routing protocol is the exterior gateway protocol used to exchange routes between autonomous systems on the internet?
  • OSPF
  • RIPv2
  • IS-IS
  • BGP
What is the default administrative distance of a directly connected route?
  • 1
  • 0
  • 90
  • 110
Which metric does RIP use to choose the best path to a destination?
  • Cost based on bandwidth
  • Hop count
  • Delay and bandwidth
  • Autonomous system path length

Network Operations

Which document formally defines the uptime and response times a service provider commits to deliver?
  • Service level agreement (SLA)
  • Acceptable use policy (AUP)
  • Memorandum of understanding (MOU)
  • Non-disclosure agreement (NDA)
Which type of network diagram shows how devices are connected by IP addressing and routing, regardless of physical location?
  • Rack diagram
  • Floor plan
  • Wiring diagram
  • Logical network diagram
Which protocol is commonly used by a monitoring system to poll devices for CPU, memory, and interface statistics?
  • SMTP
  • SNMP
  • NTP
  • DHCP

Network Security

Which element of the CIA triad ensures that data is not altered by unauthorized parties?
  • Confidentiality
  • Availability
  • Integrity
  • Authentication
Which principle grants users only the permissions they need to perform their jobs?
  • Separation of duties
  • Defense in depth
  • Implicit trust
  • Least privilege
Which attack overwhelms a service with traffic from many distributed sources?
  • Phishing
  • DDoS
  • ARP poisoning
  • VLAN hopping

Network Troubleshooting

Which is the first step of the CompTIA network troubleshooting methodology?
  • Establish a theory of probable cause
  • Implement the solution
  • Document findings and outcomes
  • Identify the problem
Which is the final step of the troubleshooting methodology?
  • Document findings, actions, and outcomes
  • Test the theory to determine the cause
  • Escalate the problem
  • Establish a plan of action
Once a theory of probable cause is established, what is the next step?
  • Implement the solution
  • Document the outcome
  • Test the theory to determine the cause
  • Verify full system functionality

Frequently Asked Questions

How many questions are on the exam?

The Network+ N10-009 exam contains 90 questions.

What is the passing score?

You need 75% to pass.

How long is the exam?

You have 90 minutes to complete the exam.

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