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N10-009 CompTIA Network+ Certification Exam Question and Answers

Question # 4

Which of the following ports should a network administrator enable for encrypted login to a network switch?

A.

22

B.

23

C.

80

D.

123

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Question # 5

A network administrator is configuring a wireless network with an ESSID. Which of the following is a user benefit of ESSID compared to SSID?

A.

Stronger wireless connection

B.

Roaming between access points

C.

Advanced security

D.

Increased throughput

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Question # 6

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?

A.

Packet loss

B.

Bottlenecking

C.

Channel overlap

D.

Network congestion

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Question # 7

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?

A.

Evil twin

B.

Honeytrap

C.

Wardriving

D.

Tailgating

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Question # 8

A network administrator installs new cabling to connect new computers and access points. After deploying the equipment, the administrator notices a few of the devices are not connecting properly. The administrator moves the devices to a different port, but it does not resolve the issue. Which of the following should the administrator verify next?

A.

Power budget

B.

Device requirements

C.

Port status

D.

Cable termination

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Question # 9

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

A.

Unicast

B.

Broadcast

C.

Multicast

D.

Anycast

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Question # 10

Which of the following disaster recovery metrics is used to describe the amount of data that is lost since the last backup?

A.

MTTR

B.

RTO

C.

RPO

D.

MTBF

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Question # 11

A network administrator upgraded the wireless access points and wants to implement a configuration that will give users higher speed and less channel overlap based on device compatibility. Which of the following will accomplish this goal?

A.

802.1X

B.

MIMO

C.

ESSID

D.

Band steering

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Question # 12

Which of the following routing protocols needs to have an autonomous system set in order to establish communication with neighbor devices?

A.

OSPF

B.

EIGRP

C.

FHRP

D.

RIP

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Question # 13

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

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

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Question # 14

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 # 15

Which of the following OSI model layers can utilize a connectionless protocol for data transmission?

A.

Physical

B.

Network

C.

Transport

D.

Application

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Question # 16

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?

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

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Question # 17

Which of the following is the greatest advantage of maintaining a cold DR site compared to other DR sites?

A.

Redundancy

B.

Availability

C.

Security

D.

Cost

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Question # 18

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 # 19

An organization requires the ability to send encrypted email messages to a partner from an email server that is hosted on premises. The organization prefers to use the standard default ports when creating firewall rules. Which of the following ports should be open to satisfy the requirements?

A.

110

B.

143

C.

587

D.

636

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Question # 20

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?

A.

127.0.0.1

B.

172.17.1.1

C.

224.0.0.1

D.

240.0.0.1

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Question # 21

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?

A.

tcpdump

B.

dig

C.

tracert

D.

arp

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Question # 22

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?

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.

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Question # 23

Users are unable to access files on their department share located on file 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, identify any issues, and configure the appropriate solution.

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 # 24

A network administrator needs to connect a multimode fiber cable from the MDF to the server room. The administrator connects the cable to Switch 2, but there is no link light. The administrator tests the fiber and finds it does not have any issues. Swapping the connection to Switch 1 in a working port is successful, but the swapped connection does not work on Switch 2. Which of the following should the administrator verify next?

A.

Fiber length

B.

Transceiver model

C.

Connector type

D.

Port speed

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Question # 25

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?

A.

Theswitch failed.

B.

Thedefault gateway is wrong.

C.

Theport Is shut down.

D.

TheVLAN assignment is incorrect.

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Question # 26

A network administrator is unable to ping a remote server from a newly connected workstation that has been added to the network. Ping to 127.0.0.1 on the workstation is failing. Which of the following should the administrator perform to diagnose the problem?

A.

Verify the NIC interface status.

B.

Verify the network is not congested.

C.

Verify the router is not dropping packets.

D.

Verify that DNS is resolving correctly.

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Question # 27

A user's home mesh wireless network is experiencing latency issues. A technician has:

•Performed a speed test.

•Rebooted the devices.

•Performed a site survey.

•Performed a wireless packet capture.

The technician reviews the following information:

The technician notices in the packet capture that frames were retransmitted. Which of the following is the most likely cause of the user's network issue?

A.

The SSIDs should not be the same.

B.

The network has too much overlap.

C.

The devices are incompatible with the mesh network.

D.

The nodes are underpowered.

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Question # 28

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 www.comptia.org. Which of the following records should the administrator use?

A.

SOA

B.

MX

C.

CNAME

D.

NS

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Question # 29

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

A.

Sides

B.

Top

C.

Front

D.

Rear

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Question # 30

A user reports having intermittent connectivity issues to the company network. The network configuration for the user reveals the following:

IP address: 192.168.1.10

Subnet mask: 255.255.255.0

Default gateway: 192.168.1.254

The network switch shows the following ARP table:

Which of the following is the most likely cause of the user's connection issues?

A.

A port with incorrect VLAN assigned

B.

A switch with spanning tree conflict

C.

Another PC with manually configured IP

D.

A router with overlapping route tables

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Question # 31

A network administrator is configuring access points for installation in a dense environment where coverage is often overlapping. Which of the following channel widths should the administrator choose to help minimize interference in the 2.4GHz spectrum?

A.

11MHz

B.

20MHz

C.

40MHz

D.

80MHz

E.

160MHz

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Question # 32

Which of the following steps of the troubleshooting methodology comes after testing the theory to determine cause?

A.

Verify full system functionality.

B.

Document the findings and outcomes.

C.

Establish a plan of action.

D.

Identify the problem.

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Question # 33

A network engineer is troubleshooting connectivity for a newly installed server on an existing VLAN. The engineer reviews the following output:

C:\> ipconfig

IP Address: 192.168.100.225

Mask: 255.255.255.224

Gateway: 192.168.100.254

Router# show ip route

C 192.168.100.0/24 is directly connected, GigabitEthernet0/0

Which of the following describes the issue?

A.

The server has an incorrect subnet mask

B.

There is a duplicate IP address on the network

C.

The DHCP address pool is exhausted

D.

The router is missing a default route

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Question # 34

Which of the following is the most cost-effective way for a network administrator to establish a persistent, secure connection between two facilities?

A.

Site-to-site VPN

B.

GRE tunnel

C.

VXLAN

D.

Dedicated line

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Question # 35

A network administrator installed a new VLAN to the network after a company added an additional floor to the office. Users are unable to obtain an IP address on the new VLAN, but ports on existing VLANs are working properly. Which of the following configurations should the administrator update?

A.

Scope size

B.

Address reservations

C.

Lease time

D.

IP helper

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Question # 36

Which of the following can be implemented to add an additional layer of security between a corporate network and network management interfaces?

A.

Jump box

B.

Console server

C.

API interface

D.

In-band management

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Question # 37

Which of the following layers in the OSI model is responsible for establishing, maintaining, and terminating connections between nodes?

A.

Physical

B.

Network

C.

Session

D.

Transport

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Question # 38

An employee has a new laptop and reports slow performance when using the wireless network. Switch firmware was updated the previous night. A network administrator logs in to the switch and sees the following statistics on the switch interface for that employee:

98469 packets input, 1681937 bytes, 0 no buffer

Received 1548 broadcasts (25285 multicasts)

65335 runts, 0 giants, 0 throttles

11546 input errors, 5 CRC, 0 frame, 0 overrun, 0 ignored

0 input packets with dribble condition detected

22781 packets output, 858040 bytes, 0 underruns

0 output errors, 89920 collisions, 0 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

Which of the following is most likely the cause of the issue?

A.

The patch cord from the wall jack is faulty.

B.

The switchport bandwidth needs to be increased.

C.

Multicast is not configured correctly on the switch.

D.

The NIC is set to half duplex.

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Question # 39

Which of the following ports is a secure protocol?

A.

20

B.

23

C.

443

D.

445

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Question # 40

Which of the following is the best VPN to use for reducing data bandwidth requirements of the corporate network?

A.

Split-tunnel

B.

Site-to-site

C.

Full-tunnel client

D.

GRE tunnel

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Question # 41

A virtual machine has the following configuration:

•IPv4 address: 169.254.10.10

•Subnet 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.

Thesubnet mask is incorrect.

B.

TheDHCP server is offline.

C.

TheIP address is an RFC1918 private address.

D.

TheDNS server is unreachable.

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Question # 42

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

A.

VPN

B.

CDN

C.

SAN

D.

SDN

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Question # 43

A network administrator needs to connect a department to a new network segment. They need to use a DHCP server located on another network. Which of the following can the administrator use to complete this task?

A.

IP Helper

B.

Reservation

C.

Exclusion

D.

Scope

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Question # 44

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 # 45

Which of the following connectors provides console access to a switch?

A.

ST

B.

RJ45

C.

BNC

D.

SFP

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Question # 46

A network administrator needs to change where the outside DNS records are hosted. Which of the following records should the administrator change the registrar to accomplish this task?

A.

NS

B.

SOA

C.

PTR

D.

CNAME

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Question # 47

Which of the following is most closely associated with a dedicated link to a cloud environment and may not include encryption?

A.

Direct Connect

B.

Internet gateway

C.

Captive portal

D.

VPN

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Question # 48

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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Question # 49

Which of the following can support a jumbo frame?

A.

Access point

B.

Bridge

C.

Hub

D.

Switch

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Question # 50

Which of the following is created to illustrate the effectiveness of wireless networking coverage in a building?

A.

Logical diagram

B.

Layer 3 network diagram

C.

Service-level agreement

D.

Heat map

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Question # 51

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).

A.

NTP server

B.

Default gateway

C.

The modem's IP address

D.

One static IP address

E.

DNS servers

F.

DHCP server

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Question # 52

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 # 53

Which of the following steps of the troubleshooting methodology should a technician take to confirm a theory?

A.

Duplicate the problem.

B.

Identify the symptoms.

C.

Gather information.

D.

Determine any changes.

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Question # 54

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

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Question # 55

Which of the following best describes a group of devices that is used to lure unsuspecting attackers and to study the attackers' activities?

A.

Geofencing

B.

Honeynet

C.

Jumpbox

D.

Screened subnet

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Question # 56

You are tasked with verifying the following requirements are met in order to ensure network security.

Requirements:

Datacenter

Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage

Provide a dedicated server to resolve IP addresses and hostnames correctly and handle port 53 traffic

Building A

Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage

Provide devices to support 5 additional different office users

Add an additional mobile user

Replace the Telnet server with a more secure solution

Screened subnet

Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage

Provide a server to handle external 80/443 traffic

Provide a server to handle port 20/21 traffic

INSTRUCTIONS

Drag and drop objects onto the appropriate locations. Objects can be used multiple times and not all placeholders need to be filled.

Available objects are located in both the Servers and Devices tabs of the Drag & Drop menu.

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 # 57

A technician is implementing a new SD-WAN device with a default configuration. The technician receives a URL via email and connects the new device to the internet to complete the installation. Which of the following is this an example of?

A.

SASE device installation

B.

Zero-touch provisioning

C.

Infrastructure as code

D.

Configuration management

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Question # 58

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?

A.

tracert

B.

netstat

C.

tcpdump

D.

nmap

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Question # 59

A network administrator recently updated configurations on a Layer 3 switch. Following the updates, users report being unable to reach a specific file server. Which of the following is the most likely cause?

A.

Incorrect ACLs

B.

Switching loop

C.

Duplicate IP addresses

D.

Wrong default route

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Question # 60

An investment bank is seeking a DR backup solution. Which of the following provides the most cost-effective backup site?

A.

Hot

B.

Cold

C.

Cluster

D.

Warm

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Question # 61

A research facility is expecting to see an exponential increase in global network traffic in the near future. The offices are equipped with 2.5Gbps fiber connections from the ISP, but the facility is currently only utilizing 1Gbps connections. Which of the following would need to be configured in order to use the ISP's connection speed?

A.

802.1Q tagging

B.

Network address translation

C.

Port duplex

D.

Link aggregation

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Question # 62

Users usually use RDP to connect to a terminal server with hostname TS19 that points to 10.0.100.19. However, users recently have been unable to connect to TS19. The technician pings 10.0.100.19 and gets an unreachable error. Which of the following is the most likely cause?

A.

The users are on the wrong subnet.

B.

The DHCP server renewed the lease.

C.

The IP address was not reserved.

D.

The hostname was changed.

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Question # 63

After installing a new wireless access point, an engineer tests the device and sees that it is not performing at the rated speeds. Which of the following should the engineer do to troubleshoot the issue? (Select two.)

A.

Ensure a bottleneck is not coming from other devices on the network.

B.

Install the latest firmware for the device.

C.

Create a new VLAN for the access point.

D.

Make sure the SSID is not longer than 16 characters.

E.

Configure the AP in autonomous mode.

F.

Install a wireless LAN controller.

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Question # 64

A network administrator needs to connect two routers in a point-to-point configuration and conserve IP space. Which of the following subnets should the administrator use?

A.

724

B.

/26

C.

/28

D.

/30

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Question # 65

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?

A.

802.11ac

B.

802.11ax

C.

802.11g

D.

802.11n

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Question # 66

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 # 67

A junior network administrator is auditing the company network and notices incrementing input errors on a long-range microwave interface. Which of the following is the most likely reason for the errors?

A.

The parabolic signal is misaligned.

B.

The omnidirectional signal is being jammed.

C.

The omnidirectional signal is not strong enough to receive properly.

D.

The parabolic signal uses improper routing protocols.

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Question # 68

An employee in a corporate office clicks on a link in an email that was forwarded to them. The employee is redirected to a splash page that says the page is restricted. Which of the following security solutions is most likely in place?

A.

DLP

B.

Captive portal

C.

Content filtering

D.

DNS sinkholing

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Question # 69

A VoIP phone is plugged in to a port but cannot receive calls. Which of the following needs to be done on the port to address the issue?

A.

Trunk all VLANs on the port.

B.

Configure the native VLAN.

C.

Tag the traffic to voice VLAN.

D.

Disable VLANs.

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Question # 70

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 # 71

Which of the following would most likely be utilized to implement encryption in transit when using HTTPS?

A.

SSH

B.

TLS

C.

SCADA

D.

RADIUS

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Question # 72

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 # 73

A network engineer is now in charge of all SNMP management in the organization. The engineer must use a SNMP version that does not utilize plaintext data. Which of the following is the minimum version of SNMP that supports this requirement?

A.

v1

B.

v2c

C.

v2u

D.

v3

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Question # 74

Which of the following connector types would most likely be used to connect to an external antenna?

A.

BNC

B.

ST

C.

LC

D.

MPO

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Question # 75

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?

A.

Patch

B.

UPS

C.

MDF

D.

Rack

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Question # 76

A network engineer is designing a secure communication link between two sites. The entire data stream needs to remain confidential. Which of the following will achieve this goal?

A.

GRE

B.

IKE

C.

ESP

D.

AH

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Question # 77

A company is hosting a secure that requires all connections to the server to be encrypted. A junior administrator needs to harded the web server. The following ports on the web server. The following ports on the web server are open:

Which of the following ports should be disabled?

A.

22

B.

80

C.

443

D.

587

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Question # 78

A network technician is installing a new switch that does not support STP at the access layer of a network. The technician wants a redundant connection to the distribution switch. Which of the following should the technician use?

A.

Link aggregation

B.

Subinterfaces

C.

Switch virtual interfaces

D.

Half-duplex connections

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Question # 79

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 # 80

Users at an organization report that the wireless network is not working in some areas of the building. Users report that other wireless network SSIDs are visible when searching for the network, but the organization's network is not displayed. Which of the following is the most likely cause?

A.

Interference or channel overlap

B.

Insufficient wireless coverage

C.

Roaming misconfiguration

D.

Client disassociation issues

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Question # 81

Three access points have Ethernet that runs through the ceiling. One of the access points cannot reach the internet. Which of the following tools can help identify the issue?

A.

Network tap

B.

Cable tester

C.

Visual fault locator

D.

Toner and probe

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Question # 82

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?

A.

Hot site

B.

Warm site

C.

Cold site

D.

Active-active approach

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Question # 83

Which of the following protocol ports should be used to securely transfer a file?

A.

22

B.

69

C.

80

D.

3389

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Question # 84

Which of the following would allow a network administrator to analyze attacks coming from the internet without affecting latency?

A.

IPS

B.

IDS

C.

Load balancer

D.

Firewall

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Question # 85

A network technician is troubleshooting network latency and has determined the issue to be occuring two network switches( Switch10 and Switch11). Symptoms reported included poor video performance and slow file copying. Given the following informtion:

Which of the following should the technician most likely do to resolve the issue?

A.

Disable automatic negotiation on Switch11.

B.

Modify Switch10 MTU value to 1500.

C.

Configure STP on both switches.

D.

Change the native VLAN on the ports.

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Question # 86

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.

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Question # 87

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 # 88

Which of the following explains what happens if a packet is lost in transit when using UDP?

A.

The data link layer will recognize the error and resend the packet.

B.

IP uses the TTL field to track packet hops and will resend the packet if necessary.

C.

If the sender does not receive a UDP acknowledgement, the packet will be resent.

D.

Some applications will recognize the loss and initiate a resend of the packet if necessary.

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Question # 89

A network engineer runs ipconfig and notices that the default gateway is 0.0.0.0. Which of the following address types is in use?

A.

APIPA

B.

Multicast

C.

Class C

D.

Experimental

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Question # 90

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 # 91

A customer calls the help desk to report issues connection to the internet. The customer can reach a local database server. A technician goes to the site and examines the configuration:

Which of the following is causing the user's issue?

A.

Incorrect DNS

B.

Unreachable gateway

C.

Failed root bridge

D.

Poor upstream routing

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Question # 92

A group of users cannot connect to network resources. The technician runs ipconfig from one user's device and is able to ping the gateway shown from the command. Which of the following is most likely preventing the users from accessing network resources?

A.

VLAN hopping

B.

Rogue DHCP

C.

Distributed DoS

D.

Evil twin

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Question # 93

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

A.

Command-line interface

B.

API gateway

C.

Client-to-site VPN

D.

Jump box

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Question # 94

Users at a satellite office are experiencing issues when using videoconferencing. Which of the following should a technician focus on first to rectify these issues?

A.

Quality of service

B.

Network signal

C.

Time to live

D.

Load balancing

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Question # 95

Which of the following should a network administrator configure when adding OT devices to an organization’s architecture?

A.

Honeynet

B.

Data-at-rest encryption

C.

Time-based authentication

D.

Network segmentation

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Question # 96

After a networking intern plugged in a switch, a significant number of users in a building lost connectivity. Which of the following is the most likely root cause?

A.

VTP update

B.

Port security issue

C.

LLDP misconfiguration

D.

Native VLAN mismatch

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Question # 97

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 # 98

Which of the following ports is used for secure email?

A.

25

B.

110

C.

143

D.

587

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Question # 99

A network manager connects two switches together and uses two connecting links. Which of the following configurations will prevent Layer 2 loops?

A.

802.1Q tagging

B.

Full duplex

C.

Link aggregation

D.

QoS

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