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CompTIA N10-009 CompTIA Network+ Certification Exam Exam Practice Test

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Total 272 questions

CompTIA Network+ Certification Exam Questions and Answers

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Question 1

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:

1 3ms 2ms 3ms 192.168.25.234

2 2ms 3ms 1ms 192.168.3.100

3 4ms 5ms 2ms 10.249.3.1

4 *

5 ’

6 *

7 •

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

Options:

A.

tracert

B.

netstat

C.

tcpdump

D.

nmap

Question 2

A network administrator needs to add 255 useable IP addresses to the network. A /24 is currently in use. Which of the following prefixes would fulfill this need?

Options:

A.

/23

B.

/25

C.

/29

D.

/32

Question 3

A network engineer discoversnetwork trafficthat is sendingconfidential informationto anunauthorized and unknown destination. Which of the followingbest describesthe cause of this network traffic?

Options:

A.

Adware

B.

Ransomware

C.

Darkware

D.

Malware

Question 4

A company's marketing team created a new application and would like to create a DNS record for newapplication.comptia.org that always resolves to the same address as Which of the following records should the administrator use?

Options:

A.

SOA

B.

MX

C.

CNAME

D.

NS

Question 5

An IT department asks anewly hired employeeto use apersonal laptopuntil the company can provide one. Which of the followingpoliciesismost applicableto this situation?

Options:

A.

IAM

B.

BYOD

C.

DLP

D.

AUP

Question 6

A technician needs to set up a wireless connection that utilizes MIMO on non-overlapping channels. Which of the following would be the best choice?

Options:

A.

802.11a

B.

802.11b

C.

802.11g

D.

802.11n

Question 7

Which of the following appliances provides users with an extended footprint that allows connections from multiple devices within a designated WLAN?

Options:

A.

Router

B.

Switch

C.

Access point

D.

Firewall

Question 8

A critical infrastructure switch is identified as end-of-support. Which of the following is the best next step to ensure security?

Options:

A.

Apply the latest patches and bug fixes.

B.

Decommission and replace the switch.

C.

Ensure the current firmware has no issues.

D.

Isolate the switch from the network.

Question 9

Which of the following protocols has a default administrative distance value of 90?

Options:

A.

RIP

B.

EIGRP

C.

OSPF

D.

BGP

Question 10

Which of the following cloud service models most likely requires the greatest up-front expense by the customer when migrating a data center to the cloud?

Options:

A.

Infrastructure as a service

B.

Software as a service

C.

Platform as a service

D.

Network as a service

Question 11

A network administrator has beenmonitoring the company's serversto ensure that they are available. Which of the following should the administrator use for this task?

Options:

A.

Packet capture

B.

Data usage reports

C.

SNMP traps

D.

Configuration monitoring

Question 12

A network engineer configures a new switch and connects it to an existing switch for expansion and redundancy. Users immediately lose connectivity to the network. The network engineer notes the following spanning tree information from both switches:

Switch 1

Port State Cost

1 Forward 2

2 Forward 2

Switch 2

Port State Cost

1 Forward 2

2 Forward 2

Which of the following best describes the issue?

Options:

A.

The port cost should not be equal.

B.

The ports should use link aggregation.

C.

A root bridge needs to be identified.

D.

The switch should be configured for RSTP.

Question 13

Which of the following IP transmission types encrypts all of the transmitted data?

Options:

A.

ESP

B.

AH

C.

GRE

D.

UDP

E.

TCP

Question 14

Which of the following most likely requires the use of subinterfaces?

Options:

A.

A router with only one available LAN port

B.

A firewall performing deep packet inspection

C.

A hub utilizing jumbo frames

D.

A switch using Spanning Tree Protocol

Question 15

Which of the following routing protocols uses an autonomous system number?

Options:

A.

IS-IS

B.

EIGRP

C.

OSPF

D.

BGP

Question 16

After providing ausername and password, a user must input apasscode from a phone application. Which of the followingauthentication technologiesis used in this example?

Options:

A.

SSO

B.

LDAP

C.

MFA

D.

SAML

Question 17

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).

Options:

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.

Question 18

A technician is troubleshooting a user's laptop that is unable to connect to a corporate server. The technician thinks the issue pertains to routing. Which of the following commands should the technician use to identify the issue?

Options:

A.

tcpdump

B.

dig

C.

tracert

D.

arp

Question 19

Which of the following routing protocols is most commonly used to interconnect WANs?

Options:

A.

IGP

B.

EIGRP

C.

BGP

D.

OSPF

Question 20

A network administrator is configuring a network for a new site that will have 150 users. Within the next year, the site is expected to grow by ten users. Each user will have two IP addresses (one for a computer and one for a phone). Which of the following classful IPv4 address ranges will be best-suited for the network?

Options:

A.

Class D

B.

Class B

C.

Class A

D.

Class C

Question 21

A network administrator suspects users are being sent to malware sites that are posing as legitimate sites. The network administrator investigates and discovers that user workstations are configured with incorrect DNS IP addresses. Which of the following should the network administrator implement to prevent this from happening again?

Options:

A.

Dynamic ARP inspection

B.

Access control lists

C.

DHCP snooping

D.

Port security

Question 22

Which of the following devices can operate in multiple layers of the OSI model?

Options:

A.

Hub

B.

Switch

C.

Transceiver

D.

Modem

Question 23

A network administrator is notified that a user cannot access resources on the network. The network administrator checks the physical connections to the workstation labeled User 3 and sees the Ethernet is properly connected. However, the network interface’s indicator lights are not blinking on either the computer or the switch. Which of the following Is the most likely cause?

Options:

A.

Theswitch failed.

B.

Thedefault gateway is wrong.

C.

Theport Is shut down.

D.

TheVLAN assignment is incorrect.

Question 24

While troubleshooting connectivity issues, a junior network administrator is given explicit instructions to test the host's TCP/IP stack first. Which of the following commands should the network administrator run?

Options:

A.

ping 127.0.0.1

B.

ping 169.254.1.1

C.

ping 172.16.1.1

D.

ping 192.168.1.1

Question 25

Which of the following can also provide a security feature when implemented?

Options:

A.

NAT

B.

BGP

C.

FHRP

D.

EIGRP

Question 26

A company is implementing a wireless solution in a high-density environment. Which of the following 802.11 standards is used when a company is concerned about device saturation and converage?

Options:

A.

802.11ac

B.

802.11ax

C.

802.11g

D.

802.11n

Question 27

While troubleshooting connectivity issues, a junior network administrator is given explicit instructions to test the host’s TCP/IP stack first. Which of the following commands should the network administrator run?

Options:

A.

ping 127.0.0.1

B.

ping 169.254.1.1

C.

ping 172.16.1.1

D.

ping 192.168.1.1

Question 28

A company reports that their facsimile machine no longer has a dial tone when trying to send a fax. The phone cable is damaged on one end. Which of the following types of connectors should a technician replace?

Options:

A.

F-type

B.

RJ45

C.

SC

D.

RJ11

Question 29

A customer is adding fiber connectivity between adjacent buildings. A technician terminates the multimode cable to the fiber patch panel. After the technician connects the fiber patch cable, the indicator light does not turn on. Which of the following should a technician try first to troubleshoot this issue?

Options:

A.

Reverse the fibers.

B.

Reterminate the fibers.

C.

Verify the fiber size.

D.

Examine the cable runs for visual faults.

Question 30

A network administrator needs to deploy a subnet using an IP address range that can support at least 260 devices with the fewest wasted addresses. Which of the following subnets should the administrator use?

Options:

A.

172.16.0.0/24

B.

172.25.2.0/23

C.

172.30.1.0/22

D.

172.33.0.0/21

Question 31

Which of the following panels would be best to facilitate a central termination point for all network cables on the floor of a company building?

Options:

A.

Patch

B.

UPS

C.

MDF

D.

Rack

Question 32

A network administrator needs to fail over services to an off-site environment. This process will take four weeks to become fully operational. Which of the following DR (Disaster Recovery) concepts does this describe?

Options:

A.

Hot site

B.

Warm site

C.

Cold site

D.

Active-active approach

Question 33

After a recent power outage, users are reporting performance issues accessing the application servers. Wireless users are also reporting intermittent Internet issues.

INSTRUCTIONS

Click on each tab at the top of the screen. Select a widget to view information, then

use the drop-down menus to answer the associated questions. If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

Options:

Question 34

A network engineer is completing a new VoIP installation, but the phones cannot find the TFTP server to download the configuration files. Which of the following DHCP features would help the phone reach the TFTP server?

Options:

A.

Exclusions

B.

Lease time

C.

Options

D.

Scope

Question 35

Which of the following facilities is the best example of a warm site in the event of information system disruption?

Options:

A.

A combination of public and private cloud services to restore data

B.

A partial infrastructure, software, and data on site

C.

A full electrical infrastructure in place, but no customer devices on site

D.

A full infrastructure in place, but no current data on site

Question 36

A wireless technician wants to implement a technology that will allow user devices to automatically navigate to the best available frequency standard. Which of the following technologies should the technician use?

Options:

A.

Band steering

B.

Wireless LAN controller

C.

Directional antenna

D.

Autonomous access point

Question 37

Which of the following fiber connector types is the most likely to be used on a network interface card?

Options:

A.

LC

B.

SC

C.

ST

D.

MPO

Question 38

A network administrator is implementing security zones for each department. Which of the following should the administrator use to accomplish this task?

Options:

A.

ACLs

B.

Port security

C.

Content filtering

D.

NAC

Question 39

Which of the following is a characteristic of the application layer?

Options:

A.

It relies upon other layers for packet delivery.

B.

It checks independently for packet loss.

C.

It encrypts data in transit.

D.

It performs address translation.

Question 40

Which of the following disaster recovery concepts is calculated by dividing the total hours of operation by the total number of units?

Options:

A.

MTTR

B.

MTBF

C.

RPO

D.

RTO

Question 41

A company has observedincreased user traffictogambling websitesand wants tolimit this behavioron work computers. Which of the following should the companymost likely implement?

Options:

A.

ACLs

B.

Content filter

C.

Port security

D.

Screened subnet

Question 42

A company receives a cease-and-desist order from its ISP regarding prohibited torrent activity. Which of the following should be implemented to comply with the cease-and-desist order?

Options:

A.

MAC security

B.

Content filtering

C.

Screened subnet

D.

Perimeter network

Question 43

A technician is designing a cloud service solution that will accommodate the company's current size, compute capacity, and storage capacity. Which of the following cloud deployment models will fulfill these requirements?

Options:

A.

SaaS

B.

PaaS

C.

IaaS

D.

IaC

Question 44

Which of the following allows a remote user to connect to the network?

Options:

A.

Command-line interface

B.

API gateway

C.

Client-to-site VPN

D.

Jump box

Question 45

A user is unable to navigate to a website because the provided URL is not resolving to the correct IP address. Other users are able to navigate to the intended website without issue. Which of the following is most likely causing this issue?

Options:

A.

Hosts file

B.

Self-signed certificate

C.

Nameserver record

D.

IP helperANS

Question 46

Which of the following would be violated if an employee accidentally deleted a customer's data?

Options:

A.

Integrity

B.

Confidentiality

C.

Vulnerability

D.

Availability

Question 47

A small company has the following IP addressing strategy:

A user is unable to connect to the company fileshare server located at 192.168.10.1. The user’s networking configuration is:

Which of the following will most likely correct the issue?

Options:

A.

Changing the IPv4 address to 192.168.10.1

B.

Changing the subnet mask to 255.255.255.0

C.

Changing the DNS servers to internet IPs

D.

Changing the physical address to 7A-01-7A-21-01-50

Question 48

Asmall businessis deploying new phones, and some of the phones havefull HD videoconferencing features. TheChief Information Officer (CIO)is concerned that the network might not be able to handle the traffic if it reaches a certain threshold. Which of the following can the network engineer configure to help ease these concerns?

Options:

A.

A VLAN with 100Mbps speed limits

B.

An IP helper to direct VoIP traffic

C.

A smaller subnet mask

D.

Full duplex on all user ports

Question 49

Which of the following troubleshooting steps would provide a change advisory board with the information needed to make a decision?

Options:

A.

Identify the problem.

B.

Develop a theory of probable cause.

C.

Test the theory to determine cause.

D.

Establish a plan of action.

Question 50

An organization wantsbetter network visibility. The organization's requirements include:

    Multivendor/OS-monitoring capabilities

    Real-time collection

    Data correlation

Which of the followingmeets these requirements?

Options:

A.

SNMP

B.

SIEM

C.

Nmap

D.

Syslog

Question 51

Due to concerns around single points of failure, a company decided to add an additional WAN to the network. The company added a second MPLS vendor to the current MPLS WAN and deployed an additional WAN router at each site. Both MPLS providers use OSPF on the WAN network, and EIGRP is run internally. The first site to go live with the new WAN is successful, but when the second site is activated, significant network issues occur. Which of the following is the most likely cause for the WAN instability?

Options:

A.

A changed CDP neighbor

B.

Asymmetrical routing

C.

A switching loop

D.

An incorrect IP address

Question 52

Early in the morning, an administrator installs a new DHCP server. In the afternoon, some users report they are experiencing network outages. Which of the following is the most likely issue?

Options:

A.

Theadministrator didnot provisionenough IP addresses.

B.

Theadministrator configured an incorrect default gateway.

C.

Theadministrator didnot provisionenough routes.

D.

Theadministrator didnot provisionenough MAC addresses.

Question 53

Adata center interconnectusing aVXLANwas recently implemented. A network engineer observesslow performance and fragmentationon the interconnect. Which of the following technologies willresolve the issue?

Options:

A.

802.1Q tagging

B.

Spanning tree

C.

Link aggregation

D.

Jumbo frames

Question 54

A company implements a video streaming solution that will play on all computers that have joined a particular group, but router ACLs are blocking the traffic. Which of the following is the most appropriate IP address that will be allowed in the ACL?

Options:

A.

127.0.0.1

B.

172.17.1.1

C.

224.0.0.1

D.

240.0.0.1

Question 55

Which of the following provides an opportunity for an on-path attack?

Options:

A.

Phishing

B.

Dumpster diving

C.

Evil twin

D.

Tailgating

Question 56

Which of the following is the most secure way to provide site-to-site connectivity?

Options:

A.

VXLAN

B.

IKE

C.

GRE

D.

IPsec

Question 57

Network administrators are using the Telnet protocol to administer network devices that are on the 192.168.1.0/24 subnet. Which of the following tools should the administrator use to best identify the devices?

Options:

A.

dig

B.

nmap

C.

tracert

D.

telnet

Question 58

Which of the following protocols provides remote access utilizing port 22?

Options:

A.

SSH

B.

Telnet

C.

TLS

D.

RDP

Question 59

Which of the following VPN types provides secure remote access to the network resources through a web portal?

Options:

A.

Proxy

B.

Clientless

C.

Site-to-site

D.

Direct connect

Question 60

A company is expanding to another floor in the same building. The network engineer configures a new switch with the same VLANs as the existing stack. When the network engineer connects the new switch to the existing stack, all users lose connectivity. Which of the following is the MOST likely reason?

Options:

A.

The new switch has unused ports disabled

B.

The new switch does not have a default gateway

C.

The new switch is connected to an access port

D.

The new switch is in a spanning tree loop

Question 61

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

Options:

A.

RTO

B.

RPO

C.

MTBF

D.

MTTR

Question 62

Users are unable to access files on their department share located on flle_server 2. The network administrator has been tasked with validating routing between networks hosting workstation A and file server 2.

INSTRUCTIONS

Click on each router to review output, identity any Issues, and configure the appropriate solution

If at any time you would like to bring back the initial state of trie simulation, please click the reset All button;

Options:

Question 63

After a company installed a new IPS, the network is experiencing speed degradation. A network administrator is troubleshooting the issue and runs a speed test. The results from the different network locations are as follows:

LocationSpeed DownSpeed Up

Wireless laptop4.8 Mbps47.1 Mbps

Wired desktop5.2 Mbps49.3 Mbps

Firewall48.8 Mbps49.5 Mbps

Which of the following is the most likely issue?

Options:

A.

Packet loss

B.

Bottlenecking

C.

Channel overlap

D.

Network congestion

Question 64

A network technician was recently onboarded to a company. A manager has

tasked the technician with documenting the network and has provided the technician With partial information from previous documentation.

Instructions:

Click on each switch to perform a network discovery by entering commands into the terminal. Fill in the missing information using drop-down menus provided.

Options:

Question 65

An organization wants to ensure that incoming emails were sent from a trusted source. Which of the following DNS records is used to verify the source?

Options:

A.

TXT

B.

AAAA

C.

CNAME

D.

MX

Question 66

Which of the following must be implemented to securely connect a company's headquarters with a branch location?

Options:

A.

Split-tunnel VPN

B.

Clientless VPN

C.

Full-tunnel VPN

D.

Site-to-site VPN

Question 67

A client with a 2.4GHz wireless network has stated that the entire office is experiencing intermittent issues with laptops after the WAP was moved. Which of the following is the most likely reason for these issues?

Options:

A.

The network uses a non-overlapping channel.

B.

The signal is reflecting too much.

C.

The network has excessive noise.

D.

A microwave is in the office.

Question 68

A network administrator noticesuncommon communication between VMsonephemeral portson the same subnet. The administrator is concerned about thattraffic moving laterallywithin the network. Which of the following describes the type of traffic flow the administrator is analyzing?

Options:

A.

East-west

B.

Point-to-point

C.

Horizontal-scaling

D.

Hub-and-spoke

Question 69

A network administrator is planning to host a company application in the cloud, making the application available for all internal and third-party users. Which of the following concepts describes this arrangement?

Options:

A.

Multitenancy

B.

VPC

C.

NFV

D.

SaaS

Question 70

An organizatin is struggling to get effective coverage using the wireless network. The organization wants to implement a solution that will allow for continous connectivity anywhere in the facility. Which of the following should the network administ rator suggest to ensure the best coverage?

Options:

A.

Implementing additional ad hoc access points

B.

Providing more Ethernet drops for user connections

C.

Deploying a mesh network in the building

D.

nl Changing the current frequency of the WI-FI

Question 71

An ISP provided a company with a pre-configured modem and five public static IP addresses. Which of the following does the company's firewall require to access the internet? (Select TWO).

Options:

A.

NTP server

B.

Default gateway

C.

The modem's IP address

D.

One static IP address

E.

DNS servers

F.

DHCP server

Question 72

A network administrator is configuring a new switch and wants to ensure that only assigned devices can connect to the switch. Which of the following should the administrator do?

Options:

A.

Configure ACLs.

B.

Implement a captive portal.

C.

Enable port security.

D.

Disable unnecessaryservices.

Question 73

Which of the following is a company most likely enacting if an accountant for the company can only see the financial department's shared folders?

Options:

A.

General Data Protection Regulation

B.

Least privilege network access

C.

Acceptable use policy

D.

End user license agreement

Question 74

Which of the following network traffic type is sent to all nodes on the network?

Options:

A.

Unicast

B.

Broadcast

C.

Multicast

D.

Anycast

Question 75

Which of the following is used to describe the average duration of an outage for a specific service?

Options:

A.

RPO

B.

MTTR

C.

RTO

D.

MTBF

Question 76

Which of the followingportscreates asecure connectionto adirectory service?

Options:

A.

22

B.

389

C.

445

D.

636

Question 77

A user's desk has a workstation and an IP phone. The user is unable to browse the internet on the workstation, but the phone works. Which of the following configurations is required?

Options:

A.

Voice VLAN

B.

Native VLAN

C.

Data VLAN

D.

Trunk port

Question 78

A network administrator recentlyupgraded a wireless infrastructurewith new APs. Users report thatwhen stationary, thewireless connection drops and reconnectsevery20 to 30 seconds. While reviewing logs, the administrator notices theAPs are changing channels.

Which of the following is themost likely reasonfor theservice interruptions?

Options:

A.

Channel interference

B.

Roaming misconfiguration

C.

Network congestion

D.

Insufficient wireless coverage

Question 79

A systems administrator is investigating why users cannot reach a Linux web server with a browser but can ping the server IP. The server is online, the web server process is running, and the link to the switch is up. Which of the following commands should the administrator run on the server first?

Options:

A.

traceroute

B.

netstat

C.

tcpdump

D.

arp

Question 80

A company experiences an incident involving a user who connects an unmanaged switch to the network. Which of the following technologies should the company implement to help avoid similar incidents without conducting an asset inventory?

Options:

A.

Screened subnet

B.

802.1X

C.

MAC filtering

D.

Port security

Question 81

A company discovers on video surveillance recordings that an unauthorized person installed a rogue access point in its secure facility. Which of the following allowed the unauthorized person to do this?

Options:

A.

Evil twin

B.

Honeytrap

C.

Wardriving

D.

Tailgating

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Total 272 questions