N10-008 Exam Practice Questions prepared by CompTIA Professionals
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NEW QUESTION # 78
Given the following information:
Which of the following command-line tools would generate this output?
- A. tracert
- B. arp
- C. dig
- D. netstat
Answer: A
Explanation:
Tracert is a command-line tool that traces the route of a packet from a source to a destination and displays the number of hops and the round-trip time for each hop. The output shown in the question is an example of a tracert output, which shows five hops with their IP addresses and hostnames (if available) and three latency measurements for each hop in milliseconds. References:
https://partners.comptia.org/docs/default-source/resources/comptia-network-n10-008-exam-objectives-(2-0),
https://www.lumen.com/help/en-us/network/traceroute/understanding-the-traceroute-output.html
NEW QUESTION # 79
An international company is transferring its IT assets including a number of WAPs from the United States to an office in Europe for deployment. Which of the following considerations should the company research before Implementing the wireless hardware?
- A. CDMA configuration
- B. Regulatory Impacts
- C. 802.11 standards
- D. WPA2 cipher
Answer: C
NEW QUESTION # 80
A wireless technician is working to upgrade the wireless infrastructure for a company. The company currently uses the 802.11g wireless standard on all access points. The company requires backward compatibility and is requesting the least expensive solution. Which of the following should the technician recommend to the company?
- A. 802.11n
- B. 802.11ac
- C. 802.11a
- D. 802.11ax
Answer: A
NEW QUESTION # 81
A corporation has a critical system that would cause unrecoverable damage to the brand if it was taken offline.
Which of the following disaster recovery solutions should the corporation implement?
- A. Load balancing
- B. Snapshots
- C. Full backups
- D. Hot site
Answer: D
Explanation:
Explanation
A hot site is the disaster recovery solution that the corporation should implement for its critical system that would cause unrecoverable damage to the brand if it was taken offline. A hot site is a fully operational backup site that can take over the primary site's functions in case of a disaster or disruption. A hot site has all the necessary hardware, software, data, network connections, and personnel to resume normal operations with minimal downtime. A hot site is suitable for systems that require high availability and cannot afford any data loss or interruption. References: https://www.enterprisestorageforum.com/management/disaster-recovery-site/
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NEW QUESTION # 82
Following the implementation of a BYOO policy. some users in a high-density environment report slowness over the wireless connection. Some wireless controller reports indicate high latency and airtime contention. Which of the following is the most probable root cause?
- A. The AP is configured with 2.4GHz frequency without band-steering capabilities.
- B. The AP is configured with 5Ghz frequency. which the new personal devices do not support
- C. The AP is configured with 5Ghz frequency with band-steering capabilities.
- D. The AP is configured with 2.4GHz frequency, which the new personal devices do not support.
Answer: A
Explanation:
Band-steering is a feature that allows an AP to steer dual-band capable clients to the less congested 5GHz frequency, leaving the 2.4GHz frequency for legacy clients. Without band-steering, the AP may have more clients competing for the same channel on the 2.4GHz frequency, resulting in high latency and airtime contention.
Reference:
According to the CompTIA Network+ Certification Exam Objectives, one of the topics covered in the exam is "Given a scenario, use appropriate wireless technologies and configurations". One of the subtopics is "Band steering" 1.
According to the PoliFi: Airtime Policy Enforcement for WiFi paper, "Band steering allows the access point to disable the 2.4 GHz band from probing the client device, so it responds only to the 5 GHz band, reducing the congestion on the 2.4 GHz band while taking advantage of the faster 5GHz band to improve user's network experience." 2.
According to the Aruba Air Slice Tech Brief, "Air Slice minimizes airtime contention and efficiently groups Wi-Fi 6 and non-Wi-Fi 6 client devices to guarantee bit rate, and provide bounded latency and jitter simultaneously." 3.
NEW QUESTION # 83
A network technician needs to use an RFC1918 IP space for a new office that only has a single public IP address. Which of the following subnets should the technician use for the LAN?
- A. 174.16.10.0/24
- B. 10.10.10.0/24
- C. 127.16.10.0/24
- D. 198.18.10.0/24
Answer: B
Explanation:
The RFC1918 IP space is a set of private IP addresses that are not routable on the public Internet and can be used for internal networks. The RFC1918 IP space consists of three ranges: 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/161 Out of the four options, only A) 10.10.10.0/24 belongs to one of these ranges, specifically the 10.0.0.0/8 range. Therefore, the technician should use this subnet for the LAN.
Reference1: https://en.wikipedia.org/wiki/Private_network
NEW QUESTION # 84
A network administrator is troubleshooting a client's device that cannot connect to the network. A physical inspection of the switch shows the RJ45 is connected. The NIC shows no activity lights. The network administrator moves the device to another location and connects to the network without issues. Which Of the following tools would be the BEST option for the network administrator to use to further troubleshoot?
- A. Cable tester
- B. Multimeter
- C. Tone generator
- D. Optical time-domain reflectometer
Answer: A
Explanation:
A cable tester is a tool that can verify the integrity and functionality of a network cable. It can measure the electrical characteristics of the cable, such as resistance, capacitance, and impedance, and detect any faults or defects, such as shorts, opens, or crosstalk. A cable tester can help the network administrator troubleshoot the problem by determining if the cable is faulty or not. A tone generator is a tool that can send an audible signal through a cable to help locate and identify it. A multimeter is a tool that can measure voltage, current, and resistance of electrical circuits. An optical time-domain reflectometer (OTDR) is a tool that can test the quality and length of fiber optic cables.
NEW QUESTION # 85
A network technician is investigating an issue with a desktop that is not connecting to the network. The desktop was connecting successfully the previous day, and no changes were made to the environment. The technician locates the switchport where the device is connected and observes the LED status light on the switchport is not lit even though the desktop is turned on Other devices that arc plugged into the switch are connecting to the network successfully.
Which of the following is MOST likely the cause of the desktop not connecting?
- A. VLAN mismatch
- B. Damaged cable
- C. Port security
- D. Transceiver mismatch
- E. Duplex mismatch
Answer: C
NEW QUESTION # 86
A network engineer is upgrading an existing edge gateway. The company currently uses a router and needs to be able to filter on all OSI layers. Which of the following should the engineer use to upgrade the gateway?
- A. NGFW
- B. Layer 3 switch
- C. Proxy
- D. Load balancer
Answer: A
Explanation:
NGFW (Next-Generation Firewall): NGFWs are advanced security devices that go beyond traditional firewalls. They provide filtering and inspection capabilities at multiple OSI layers, including application-layer filtering, intrusion prevention, and advanced threat protection. NGFWs are designed to offer more sophisticated and comprehensive security features compared to traditional routers.
NEW QUESTION # 87
While setting up a new workstation, a technician discovers that the network connection is only 100 full duplex (FD), although it is connected to a gigabit switch.
While reviewing the interface information in the switch CLI, the technician notes the port is operating at IOOFD but Shows many RX and TX errors. The technician moves the computer to another switchport and experiences the same issues.
Which of the following is MOST likely the cause of the low data rate and port errors?
- A. Incorrect pinout
- B. Duplex issues
- C. Bad switch ports
- D. Cable length
Answer: A
Explanation:
* A pinout is the arrangement of wires or pins in a cable or connector that determines how the signals are transmitted and received. A pinout can be either straight-through, which means that the wires or pins are connected in the same order on both ends of the cable or connector, or crossover, which means that the wires or pins are swapped on one end of the cable or connector.
* An incorrect pinout is a likely cause of the low data rate and port errors, because it can prevent the proper communication between the workstation and the switch. If the pinout is not compatible with the devices or the standards, the signals may be distorted, lost, or misinterpreted, resulting in errors and reduced performance. For example, if the workstation and the switch use different Ethernet standards, such as 10BASE-T and 1000BASE-T, they may require different pinouts to operate correctly. If the cable or connector has a mismatched pinout, the workstation and the switch may not be able to negotiate the optimal speed and duplex settings, and may fall back to a lower data rate, such as 100 full duplex, or experience many RX and TX errors.
* Therefore, option D is the most likely answer, as the incorrect pinout needs to be corrected to provide the optimal data rate and port performance. The technician needs to check the cable and connector types, standards, and pinouts, and replace them with the appropriate ones that match the workstation and the switch specifications.
* Option A is not a likely answer, as the bad switch ports would affect the connectivity and performance of any device that is connected to them, not just the workstation. If the technician moves the computer to another switchport and experiences the same issues, it indicates that the problem is not with the switch ports, but with the workstation, the cable, or the connector.
* Option B is also not a likely answer, as the duplex issues would affect the mode of data transmission between the workstation and the switch, not the data rate or the port errors. The duplex issues can be either half-duplex, which means that data can be transmitted in one direction at a time, or full-duplex, which means that data can be transmitted in both directions simultaneously. The duplex issues can cause collisions or interference if the workstation and the switch have different duplex settings, but they would not cause the data rate to drop to 100 full duplex, or cause many RX and TX errors.
* Option C is also not a likely answer, as the cable length would affect the signal strength and quality of
* the data transmission, not the data rate or the port errors. The cable length can cause attenuation, which is the loss of signal power over distance, or crosstalk, which is the interference from adjacent wires or cables. The cable length can cause the data transmission to be degraded or corrupted, but it would not cause the data rate to drop to 100 full duplex, or cause many RX and TX errors.
References:
* CompTIA Network+ N10-008 Study Guide, Chapter 2: Network Devices and Technologies, Section
2.1: Network Cabling and Connectors, Page 661
* Professor Messer's CompTIA N10-008 Network+ Course Notes, Section 2.1: Network Cabling and Connectors, Page 92
* What is a Pinout? | Definition and Examples3
* Ethernet Cable Pinouts - Cisco
* Troubleshooting Ethernet Cable Problems - Cisco
NEW QUESTION # 88
An employee working in a warehouse facility is experiencing interruptions in mobile applications while walking around the facility. According to a recent site survey, the WLAN comprises autonomous APs that are directly connected to the internet, providing adequate signal coverage.
Which of the following is the BEST solution to improve network stability?
- A. Verify that the level of EIRP power settings is set to the maximum permitted by regulations.
- B. Implement client roaming using an extended service deployment employing a wireless controller.
- C. Remove omnidirectional antennas and adopt a directional bridge.
- D. Ensure all APs of the warehouse support MIMO and Wi-Fi 4.
Answer: B
Explanation:
With multiple WAPs in an ESS, clients will connect to whichever WAP has the strongest signal.
As clients move through the space covered by the broadcast area, they will change WAP connections seamlessly, a process called roaming.
NEW QUESTION # 89
A technician is checking network devices to look for opportunities to improve security. Which of the following tools would BEST accomplish this task?
- A. Protocol analyzer
- B. Wi-Fi analyzer
- C. IP scanner
- D. Nmap
Answer: D
Explanation:
Nmap is a tool that can be used to scan and identify network devices and can help identify potential security vulnerabilities. Wi-Fi analyzer is used to analyze wireless networks, protocol analyzers are used to analyze network traffic, and IP scanners are used to discover devices on a network.
NEW QUESTION # 90
Which of the following would be used to indicate when unauthorized access to physical internal hardware has occurred?
- A. Locking racks
- B. Motion detectors
- C. Radio frequency identification tags
- D. Tamper evident seal
Answer: D
Explanation:
A tamper-evident seal is used to indicate when unauthorized access to physical internal hardware has occurred. These seals are designed to break or show visible signs of tampering if someone tries to open or access a piece of equipment or hardware. This provides a visual indication that unauthorized access or tampering has taken place, alerting security personnel to investigate further.
NEW QUESTION # 91
Which of the following network management methods is able to perform various automated tasks?
- A. SSH
- B. API
- C. CLI
- D. GUI
Answer: B
Explanation:
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 # 92
Which of the following combinations of single cables and transceivers will allow a server to have 40GB of network throughput? (Select two).
- A. Cat 6a
- B. QSFP+
- C. SFP
- D. Cat5e
- E. Multimode
- F. SFP+
Answer: B,E
Explanation:
QSFP+ is a type of transceiver that supports 40 gigabit Ethernet (40GbE) over four lanes of 10 gigabit Ethernet (10GbE) each. QSFP+ stands for quad small form-factor pluggable plus, and it is a compact and hot-swappable module that plugs into a QSFP+ port on a network device. QSFP+ transceivers can support various types of cables and connectors, such as direct attach copper (DAC), active optical cable (AOC), or fiber optic cable.
Multimode is a type of fiber optic cable that supports multiple modes of light propagation within the core.
Multimode fiber optic cable can carry higher bandwidth and data rates than single-mode fiber optic cable, but over shorter distances. Multimode fiber optic cable is commonly used for short-reach applications, such as within a data center or a campus network. Multimode fiber optic cable can be paired with QSFP+ transceivers to achieve 40GbE connectivity.
The other options are not correct because they do not support 40GbE. They are:
* SFP+. SFP+ is a type of transceiver that supports 10 gigabit Ethernet (10GbE) over a single lane. SFP+ stands for small form-factor pluggable plus, and it is a compact and hot-swappable module that plugs into an SFP+ port on a network device. SFP+ transceivers can support various types of cables and connectors, such as direct attach copper (DAC), active optical cable (AOC), or fiber optic cable.
However, SFP+ transceivers cannot support 40GbE by themselves, unless they are used in a breakout configuration with a QSFP+ transceiver.
* SFP. SFP is a type of transceiver that supports 1 gigabit Ethernet (1GbE) over a single lane. SFP stands for small form-factor pluggable, and it is a compact and hot-swappable module that plugs into an SFP port on a network device. SFP transceivers can support various types of cables and connectors, such as twisted-pair copper, coaxial cable, or fiber optic cable. However, SFP transceivers cannot support
40GbE by themselves, unless they are used in a breakout configuration with a QSFP+ transceiver.
* Cat 6a. Cat 6a is a type of twisted-pair copper cable that supports 10 gigabit Ethernet (10GbE) over distances up to 100 meters. Cat 6a stands for category 6 augmented, and it is an enhanced version of Cat
6 cable that offers better performance and reduced crosstalk. Cat 6a cable can be paired with 10Gbase-T transceivers to achieve 10GbE connectivity. However, Cat 6a cable cannot support 40GbE by itself, unless it is used in a breakout configuration with a QSFP+ transceiver.
* Cat 5e. Cat 5e is a type of twisted-pair copper cable that supports 1 gigabit Ethernet (1GbE) over distances up to 100 meters. Cat 5e stands for category 5 enhanced, and it is an improved version of Cat 5 cable that offers better performance and reduced crosstalk. Cat 5e cable can be paired with 1000base-T transceivers to achieve 1GbE connectivity. However, Cat 5e cable cannot support 40GbE by itself, unless it is used in a breakout configuration with a QSFP+ transceiver.
References1: QSFP+ - an overview | ScienceDirect Topics2: Multimode Fiber - an overview | ScienceDirect Topics3: Network+ (Plus) Certification | CompTIA IT Certifications4: SFP+ - an overview | ScienceDirect Topics5: SFP - an overview | ScienceDirect Topics6: Cat 6a - an overview | ScienceDirect Topics7: [Cat 5e - an overview | ScienceDirect Topics]
NEW QUESTION # 93
When a user makes a VoIP phone call and finishes speaking, the user experiences a delay in hearing a response. Which of the following should the network engineer check?
- A. CRC errors
- B. Jitter
- C. Bandwidth
- D. Latency
Answer: D
NEW QUESTION # 94
Which or the following devices and encapsulations are found at me data link layer? (Select TWO)
- A. Frame
- B. Session
- C. Router
- D. Switch
- E. Firewall
- F. Packet
Answer: A,D
Explanation:
The data link layer is responsible for defining the format of data on the network and providing physical transmission of data. Devices that operate at this layer include switches and network interface cards (NICs).
Encapsulations that are used at this layer include frames, which are units of data that contain a header, payload, and trailer. Frames are used to identify the source and destination of data on the network and to perform error detection. References: CompTIA Network+ N10-008 Certification Study Guide, page 9; The Official CompTIA Network+ Student Guide (Exam N10-008), page 1-6.
NEW QUESTION # 95
Which of the following passwords would provide the best defense against a brute-force attack?
- A. Password! 1
- B. ThislsMyPasswordForWork
- C. Qwerty!@#$
- D. T5!8j5
Answer: D
Explanation:
Explanation
A brute-force attack is a method of guessing passwords by trying every possible combination of characters until the correct one is found. The longer and more complex the password, the harder it is to crack by brute-force. A password that provides the best defense against a brute-force attack should have a combination of uppercase and lowercase letters, numbers, and special characters, and should be as long as possible. The password T5!8j5 meets these criteria, while the other options are either too short, too simple, or too common.
References:
Password Attacks - N10-008 CompTIA Network+ : 4.21
CompTIA Network+ Cert Guide: Security Concepts and Tools, page 25
https://www.pearsonitcertification.com/articles/article.aspx?p=3021579&seqNum=2
NEW QUESTION # 96
A technician is troubleshooting a wireless connectivity issue in a small office located in a high-rise building. Several APs are mounted in this office. The users report that the network connections frequently disconnect and reconnect throughout the day. Which of the following is the MOST likely cause of this issue?
- A. EIRP needs to be boosted
- B. The AP association time is set too low
- C. The RSSI is misreported
- D. Channel overlap is occurring
Answer: D
Explanation:
Channel overlap is a common cause of wireless connectivity issues, especially in high-density environments where multiple APs are operating on the same or adjacent frequencies. Channel overlap can cause interference, signal degradation, and performance loss for wireless devices. The AP association time, EIRP, and RSSI are not likely to cause frequent disconnects and reconnects for wireless users.
NEW QUESTION # 97
To comply with industry requirements, a security assessment on the cloud server should identify which protocols and weaknesses are being exposed to attackers on the Internet. Which of the following tools is the MOST appropriate to complete the assessment?
- A. Use an IP scanner and target the cloud WAN network addressing.
- B. Use nmap and set the servers' public IPs as the targets.
- C. Run netstat in each cloud server and retrieve the running processes.
- D. Use tcpdump and parse the output file in a protocol analyzer.
Answer: B
NEW QUESTION # 98
Which of the following protocols would allow a secure connection to a Linux-based system?
- A. SSH
- B. FTP
- C. RDP
- D. SMB
Answer: A
NEW QUESTION # 99
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