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N10-009 CompTIA Network+ Certification Exam Question and Answers

Question # 4

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?

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.

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Question # 5

A network administrator is connecting two Layer 2 switches in a network. These switches must transfer data in multiple networks. Which of the following would fulfill this requirement?

A.

Jumbo frames

B.

802.1Q tagging

C.

Native VLAN

D.

Link aggregation

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Question # 6

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

A.

RPO

B.

MTTR

C.

RTO

D.

MTBF

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Question # 7

Which of the following is the most likely reason an insurance brokerage would enforce VPN usage?

A.

To encrypt sensitive data in transit

B.

To secure the endpoint

C.

To maintain contractual agreements

D.

To comply with data retentin requirements

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Question # 8

Which of the following does a full-tunnel VPN provide?

A.

Lower bandwidth requirements

B.

The ability to reset local computer passwords

C.

Corporate Inspection of all networktraffic

D.

Access to blocked sites

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Question # 9

SIMULATION

You have been tasked with setting up a wireless network in an office. The network will consist of 3 Access Points and a single switch. The network must meet the following parameters:

The SSIDs need to be configured as CorpNet with a key of S3cr3t!

The wireless signals should not interfere with each other

The subnet the Access Points and switch are on should only support 30 devices maximum

The Access Points should be configured to only support TKIP clients at a maximum speed

INSTRUCTONS

Click on the wireless devices and review their information and adjust the settings of the access points to meet the given requirements.

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

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Question # 10

Which of the following technologies are X.509 certificates most commonly associated with?

A.

PKI

B.

VLAN tagging

C.

LDAP

D.

MFA

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Question # 11

A network administrator is in the process of installing 35 PoE security cameras. After the administrator installed and tested the new cables, the administrator installed the cameras. However, a small number of the cameras do not work. Which of the following is the most reason?

A.

Incorrect wiring standard

B.

Power budget exceeded

C.

Signal attenuation

D.

Wrong voltage

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Question # 12

Which of the following network topologies contains a direct connection between every node in the network?

A.

Mesh

B.

Hub-and-spoke

C.

Star

D.

Point-to-point

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Question # 13

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?

A.

TXT

B.

AAAA

C.

CNAME

D.

MX

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Question # 14

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

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.

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Question # 15

Which of the following is the correct order of components in a bottom-up approach for the three-tier hierarchical model?

A.

Access, distribution, and core

B.

Core, root, and distribution

C.

Core, spine, and leaf

D.

Access, core, and roof

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Question # 16

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

A.

ACLs

B.

Port security

C.

Content filtering

D.

NAC

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Question # 17

Which of the following is the next step to take after successfully testing a root cause theory?

A.

Determine resolution steps.

B.

Duplicate the problem in a lab.

C.

Present the theory for approval.

D.

Implement the solution to the problem.

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Question # 18

A network technician needs to install patch cords from the UTP patch panel to the access switch for a newly occupied set of offices. The patch panel is not labeled for easy jack identification. Which of the following tools provides the easiest way to identify the appropriate patch panel port?

A.

Toner

B.

Laptop

C.

Cable tester

D.

Visual fault locator

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Question # 19

Which of the following should be configured so users can authenticate to a wireless network using company credentials?

A.

SSO

B.

SAML

C.

MFA

D.

RADIUS

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Question # 20

A customer recently moved into a new office and notices that some wall plates are not working and are not properly labeled Which of the following tools would be best to identify the proper wiring in the IDF?

A.

Toner and probe

B.

Cable tester

C.

Visual fault locator

D.

Network tap

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Question # 21

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?

A.

Reverse the fibers.

B.

Reterminate the fibers.

C.

Verify the fiber size.

D.

Examine the cable runs for visual faults.

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Question # 22

As part of an attack, a threat actor purposefully overflows the content-addressable memory (CAM) table on a switch. Which of the following types of attacks is this scenario an example of?

A.

ARP spoofing

B.

Evil twin

C.

MAC flooding

D.

DNS poisoning

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Question # 23

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

A.

IS-IS

B.

EIGRP

C.

OSPF

D.

BGP

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Question # 24

Which of the following describes the best reason for using BGP?

A.

Preventing a loop within a LAN

B.

Improving reconvergence times

C.

Exchanging router updates with a different ISP

D.

Sharing routes with a Layer 3 switch

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Question # 25

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

customer reports that some of the PCs are not connecting to the network, while others

appear to be working as intended.

INSTRUCTIONS

Troubleshoot all the network components.

Review the cable test results first, then diagnose by clicking on the appropriate PC,

server, and Layer 2 switch.

Identify any components with a problem and recommend a solution to correct each

problem.

If at any time you would like to bring back

the initial state of the simulation, please

click the Reset All button.

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Question # 26

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

A.

Integrity

B.

Confidentiality

C.

Vulnerability

D.

Availability

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Question # 27

A company wants to implement a disaster recovery site or non-critical applicance, which can tolerance a short period of downltime. Which of the followig type of sites should the company impelement to achive this goal?

A.

Hot

B.

Cold

C.

Warm

D.

Passive

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Question # 28

Before using a guest network, an administrator requires users to accept the terms of use Which of the following is the best way to accomplish this goal?

A.

Pre-shared key

B.

Autonomous access point

C.

Captive portal

D.

WPA2 encryption

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Question # 29

A network engineer performed a migration to a new mail server. The engineer changed the MX record, verified the change was accurate, and confirmed the new mail server was reachable via the IP address in the A record. However, users are not receiving email. Which of the following should the engineer have done to prevent the issue from occurring?

A.

Change the email client configuration to match the MX record.

B.

Reduce the TTL record prior to the MX record change.

C.

Perform a DNS zone transfer prior to the MX record change.

D.

Update the NS record to reflect the IP address change.

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Question # 30

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?

A.

/23

B.

/25

C.

/29

D.

/32

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Question # 31

A network administrator has been tasked with configuring a network for a new corporate office. The office consists of two buildings, separated by 50 feet with no physical connectivity. The configuration must meet the following requirements:

. Devices in both buildings should be

able to access the Internet.

. Security insists that all Internet traffic

be inspected before entering the

network.

. Desktops should not see traffic

destined for other devices.

INSTRUCTIONS

Select the appropriate network device for each location. If applicable, click on the magnifying glass next to any device which may require configuration updates and make any necessary changes.

Not all devices will be used, but all locations should be filled.

If at any time you would like to bring back the initial state of the simulation, please

click the Reset All button.

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Question # 32

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?

A.

A changed CDP neighbor

B.

Asymmetrical routing

C.

A switching loop

D.

An incorrect IP address

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Question # 33

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

A.

LC

B.

SC

C.

ST

D.

MPO

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Question # 34

Which of the following most likely determines the size of a rack for installation? (Select two).

A.

KVM size

B.

Switch depth

C.

Hard drive size

D.

Cooling fan speed

E.

Outlet amperage

F.

Server height

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Question # 35

A user connects to a corporate VPN via a web browser and is able to use TLS to access the internal financial system to input a time card. Which of the following best describes how the VPN is being used?

A.

Clientless

B.

Client-to-site

C.

Full tunnel

D.

Site-to-site

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Question # 36

Which of the following are the best device-hardening techniques for network security? (Select two).

A.

Disabling unused ports

B.

Performing regular scanning of unauthorized devices

C.

Monitoring system logs for irregularities

D.

Enabling logical security such as SSO

E.

Changing default passwords

F.

Ensuring least privilege concepts are in place

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Question # 37

A network technician replaced an access layer switch and needs to reconfigure it to allow the connected devices to connect to the correct networks.

INSTRUCTIONS

Click on the appropriate port(s) on Switch 1 and Switch 3 to verify or reconfigure the

correct settings:

· Ensure each device accesses only its

correctly associated network.

· Disable all unused switchports.

. Require fault-tolerant connections

between the switches.

. Only make necessary changes to

complete the above requirements.

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Question # 38

A network architect needs to create a wireless field network to provide reliable service to public safety vehicles. Which of the following types of networks is the best solution?

A.

Mesh

B.

Ad hoc

C.

Point-to-point

D.

Infrastructure

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Question # 39

A network technician is examining the configuration on an access port and notices more than one VLAN has been set. Which of the following best describes how the port is configured?

A.

With a voice VLAN

B.

With too many VLANs

C.

With a default VLAN

D.

With a native VLAN

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Question # 40

A network administrator needs to divide 192.168.1.0/24 into two equal halves. Which of the following subnet masks should the administrator use?

A.

255.255.0.0

B.

255.255.254.0

C.

255.255.255.0

D.

255.255.255.128

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Question # 41

A network administrator configured a router interface as 10.0.0.95 255.255.255.240. The administrator discovers that the router is not routing packets to a web server with IP 10.0.0.81/28. Which of the following is the best explanation?

A.

Theweb server Is In adifferent subnet.

B.

Therouter interface isa broadcast address.

C.

TheIP address spaceis a class A network.

D.

Thesubnet is in a private address space.

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Question # 42

A technician is planning an equipement installation into a rack in a data center that practices hot aisle/cold aise ventilation. Which of the following directions should the equipement exhaust face when installed in the rack?

A.

Sides

B.

Top

C.

Front

D.

Rear

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Question # 43

A network administrator for a small office is adding a passive IDS to its network switch for the purpose of inspecting network traffic. Which of the following should the administrator use?

A.

SNMP trap

B.

Port mirroring

C.

Syslog collection

D.

API integration

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Question # 44

Which of the following attacks utilizes a network packet that contains multiple network tags?

A.

MAC flooding

B.

VLAN hopping

C.

DNS spoofing

D.

ARP poisoning

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Question # 45

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?

A.

General Data Protection Regulation

B.

Least privilege network access

C.

Acceptable use policy

D.

End user license agreement

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