NEW QUESTION 1

A technician is working on a ticket for a user in the human resources department who received a new PC that does not connect to the internet. All users in human resources can access the
internet. The technician can ping the PC from the human resources router but not from the IT network. Which of the following is the most likely cause of the issue?

• A. Duplicate IP address
• B. Misconfigured RIP
• C. Improper VLAN assignment
• D. Incorrect default gateway

Answer: D

Explanation:
An incorrect default gateway can cause a PC to not connect to the internet, because the default gateway is the device that routes traffic from the local network to other networks. If the PC has a wrong default gateway configured, it may not be able to reach the internet router or the IT network router. The technician can ping the PC from the human resources router because they are on the same local network, but not from the IT network router because they are on different networks.
A duplicate IP address can cause a PC to not communicate with other devices on the same network, because the IP address is the unique identifier of a device on a network. If two devices have the same IP address, they may cause IP conflicts and packet loss. However, a duplicate IP address would not prevent the technician from pinging the PC from the human resources router, because they are on the same network.
A misconfigured RIP can cause a router to not learn or advertise routes to other networks, because RIP is a routing protocol that dynamically exchanges routing information between routers. If a router has a wrong RIP configuration, it may not be able to reach or share routes with other routers. However, a misconfigured RIP would not affect the PC’s connectivity to the internet, because the PC does not use RIP.
An improper VLAN assignment can cause a PC to not communicate with other devices on the same or different networks, because a VLAN is a logical segmentation of a network that isolates traffic based on criteria such as function, security, or performance. If a PC is assigned to a wrong VLAN, it may not be able to access the resources or services that it needs. However, an improper VLAN assignment would not prevent the technician from pinging the PC from the human resources router, because they are on the same physical network.
References
What is a Default Gateway?
What’s an IP Conflict and How Do You Resolve It? What is RIP (Routing Information Protocol)?
What is a VLAN? How to Set Up a VLAN Network
CompTIA Network+ Certification All-in-One Exam Guide, Eighth Edition (Exam N10-008)

NEW QUESTION 2
SIMULATION
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.

• A. Yes
• B. Not Mastered

Answer: A

NEW QUESTION 3

A network engineer needs to reduce the overhead of file transfers. Which of the following configuration changes would accomplish that goal?

• A. Link aggregation
• B. Jumbo frames
• C. Port security
• D. Flow control
• E. Lower FTP port

Answer: A

NEW QUESTION 4

A network administrator is troubleshooting a connectivity performance issue. As part of the troubleshooting process, the administrator performs a traceout from the client to the server, and also from the server to the client. While comparing the outputs, the administrator notes they show different hops between the hosts. Which of the following BEST explains these findings?

• A. Asymmetric routing
• B. A routing loop
• C. A switch loop
• D. An incorrect gateway

Answer: C

NEW QUESTION 5

A technician is installing a cable modem in a SOHO. Which of the following cable types will the technician MOST likely use to connect a modem to the ISP?

• A. Coaxial
• B. Single-mode fiber
• C. Cat 6e
• D. Multimode fiber

Answer: A

Explanation:
Coaxial cable is a type of cable that consists of a central copper conductor surrounded by an insulating layer and a braided metal shield. Coaxial cable is commonly used to connect a cable modem to an ISP by transmitting data over cable television networks. Coaxial cable can support high bandwidth and long distances with minimal interference or attenuation. References: https://partners.comptia.org/docs/default-source/resources/comptia-network-n10-008-exam-objectives-(2-0), https://www.techopedia.com/definition/4027/coaxial-cable

NEW QUESTION 6

After installing a series of Cat 8 keystones, a data center architect notices higher than normal interference during tests. Which of the following steps should the architect
take to troubleshoot the issue?

• A. Check to see if the end connections were wrapped in copper tape before terminating.
• B. Use passthrough modular crimping plugs instead of traditional crimping plugs.
• C. Connect the RX/TX wires to different pins.
• D. Run a speed test on a device that can only achieve 100Mbps speeds.

Answer: A

Explanation:
Cat 8 keystones are shielded to prevent interference from external sources, but they also require proper grounding to avoid interference from within the cable. Wrapping the end connections with copper tape before terminating them is one way to ensure a good ground connection and reduce interference. Using passthrough modular crimping plugs, connecting the RX/TX wires to different pins, or running a speed test on a slow device are not relevant or effective steps to troubleshoot the issue.
References:
✑ CompTIA Network+ N10-008 Certification Study Guide, page 191
✑ CompTIA Network+ N10-008 Cert Guide, Deluxe Edition, page 362
✑ CAT8 RJ45 Keystone Problem : r/HomeNetworking2
✑ How to Terminate Cat8 Shielded Keystone Jacks3

NEW QUESTION 7

Which of the following network management methods is able to perform various automated tasks?

• A. SSH
• B. CLI
• C. GUI
• D. API

Answer: D

Explanation:
API stands for Application Programming Interface, which is a set of rules and protocols that allow different software applications to communicate and exchange data. Network automation can use APIs to perform various automated tasks, such as configuring devices, provisioning resources, monitoring performance, and optimizing networks. APIs can enable network automation to interact with different network elements, platforms, and services, regardless of their vendor, technology, or architecture.
The other options are not correct because:
✑ SSH stands for Secure Shell, which is a protocol that allows secure remote access to a network device. SSH can be used to manually configure and manage a network device, but it does not automate network tasks by itself.
✑ CLI stands for Command-Line Interface, which is a text-based interface that allows users to interact with a network device by typing commands. CLI can be used to manually configure and manage a network device, but it does not automate network tasks by itself.
✑ GUI stands for Graphical User Interface, which is a visual interface that allows users to interact with a network device by using icons, menus, and windows. GUI can be used to manually configure and manage a network device, but it does not automate network tasks by itself.

NEW QUESTION 8

After a critical power issue, the network team was not receiving UPS status notifications. The network team would like to be alerted on these status changes. Which of the following would be BEST to use tor these notifications?

• A. Traps
• B. MB
• C. NetFlow
• D. Syslog

Answer: A

NEW QUESTION 9

A network engineer is investigating reports of poor network performance. Upon reviewing a device configuration, the engineer finds that duplex settings are mismatched on both ends. Which of the following would be the MOST likely result of this finding?

• A. Increased CRC errors
• B. Increased giants and runts
• C. Increased switching loops
• D. Increased device temperature

Answer: A

Explanation:
Mismatched duplex settings can cause an increase in CRC errors, which are errors in data transmission that can result in corrupted data. References: CompTIA Network+ Certification Study Guide, Chapter 4: Infrastructure.

NEW QUESTION 10

Which of the following routing protocols has routes that are classified with an administrative distance of 110?

• A. BGP
• B. OSPF
• C. EIGRP
• D. RIP

Answer: B

Explanation:
Administrative distance is a measure of the trustworthiness of a routing protocol. The smaller the administrative distance value, the more reliable the protocol. Each routing protocol has its own default administrative distance value. OSPF has a default administrative distance of 110, which means it is more reliable than RIP (120) but less reliable than EIGRP (90) or BGP (20).
References := Administrative Distance of Routing Protocols - Networks Training, What is Administrative Distance? - Cisco, Adjust Administrative Distance for Route Selection in Cisco IOS Routers …, Administrative Distance (AD) and Autonomous System (AS)

NEW QUESTION 11

A technician installed an 8-port switch in a user's office. The user needs to add a second computer in the office, so the technician connects both PCs to the switch and connects the switch to the wall jack. However, the new PC cannot connect to network resources. The technician then observes the following:
• The new computer does not get an IP address on the client's VLAN.
• Both computers have a link light on their NICs.
• The new PC appears to be operating normally except for the network issue.
• The existing computer operates normally.
Which of the following should the technician do NEXT to address the situation?

• A. Contact the network team to resolve the port security issue.
• B. Contact the server team to have a record created in DNS for the new PC.
• C. Contact the security team to review the logs on the company's SIEM.
• D. Contact the application team to check NetFlow data from the connected switch.

Answer: A

NEW QUESTION 12

Which of the following routing protocols should be implemented to create a route between
a local area network and an ISP?

• A. BGP
• B. EIGRP
• C. RIP
• D. OSPF

Answer: A

Explanation:
BGP stands for Border Gateway Protocol, and it is a routing protocol that is used to exchange routing information between different autonomous systems (AS) on the Internet. An AS is a network or a group of networks that are under the same administrative control and share a common routing policy. BGP is used to create routes between local area networks and Internet service providers (ISPs), as well as between different ISPs. BGP is considered an exterior gateway protocol (EGP), as opposed to an interior gateway protocol (IGP) such as EIGRP, RIP, or OSPF, which are used to create routes within an
AS. References: CompTIA Network+ N10-008 Cert Guide, Chapter 3, Section 3.4

NEW QUESTION 13

To comply with an industry regulation, all communication destined to a secure server should be logged and archived on a storage device. Which of the Mowing can be configured to fulfill this requirement?

• A. QoS traffic classification
• B. Port mirroring
• C. Flow control
• D. Link Aggregation Control Protocol

Answer: B

NEW QUESTION 14

An IDS was installed behind the edge firewall after a network was breached. The network was then breached again even though the IDS logged the attack. Which of the following should be used in place of these devices to prevent future attacks?

• A. A network tap
• B. A proxy server
• C. A UTM appliance
• D. A content filter

Answer: C

Explanation:
A UTM appliance stands for Unified Threat Management appliance, which is a device that combines multiple security functions into one solution. A UTM appliance can provide firewall, IDS/IPS, antivirus, VPN, web filtering, and other security features. A network technician can use a UTM appliance in place of an edge firewall and an IDS to prevent future attacks, as a UTM appliance can block malicious traffic and detect and respond to intrusions more effectively. References: https://www.comptia.org/blog/what-is- utm

NEW QUESTION 15

A technician removes an old PC from the network and replaces it with a new PC that is unable to connect to the LAN. Which of the Mowing is MOST likely the cause of the issue?

• A. Port security
• B. Port tagging
• C. Port aggregation
• D. Port mirroring

Answer: A

Explanation:
It is most likely that the issue is caused by port security, as this is a feature that can prevent new devices from connecting to the LAN. Port tagging, port aggregation, and port mirroring are all features that are used to manage traffic on the network, but they are not related to the connectivity of new devices. If the technician has configured port security on the network and the new PC does not meet the security requirements, it will not be able to connect to the LAN.

NEW QUESTION 16
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