Practice Free N10-008 Exam Online Questions
Question #1
After a firewall replacement, some alarms and metrics related to network availability stopped updating on a monitoring system relying on SNMP.
Which of the following should the network administrator do first?
- A . Modify the device’s MIB on the monitoring system.
- B . Configure syslog to send events to the monitoring system.
- C . Use port mirroring to redirect traffic to the monitoring system.
- D . Deploy SMB to transfer data to the monitoring system.
Correct Answer: A
A
Explanation:
SNMP (Simple Network Management Protocol) is a protocol that allows network devices to communicate with a monitoring system and provide information about their status, performance, and configuration. SNMP relies on MIBs (Management Information Bases), which are collections of objects that define the types of information that can be accessed or modified on a device1.
When a firewall replacement occurs, the new firewall may have a different MIB than the old one, which means that the monitoring system may not be able to recognize or interpret the data sent by the new firewall. This can cause some alarms and metrics related to network availability to stop updating on the monitoring system. To fix this, the network administrator should modify the device’s MIB on the monitoring system, so that it matches the MIB of the new firewall and can correctly process the SNMP data2.
The other options are not relevant to the issue. Configuring syslog to send events to the monitoring system would not affect the SNMP data, as syslog is a different protocol that sends log messages from network devices to a central server. Using port mirroring to redirect traffic to the monitoring system would not help, as port mirroring is a technique that copies traffic from one port to another for analysis or troubleshooting purposes, but does not change the format or content of the traffic. Deploying SMB to transfer data to the monitoring system would not work, as SMB is a protocol that allows file sharing and access between network devices, but does not support SNMP data.
Reference
Grafana & Prometheus SNMP: advanced network monitoring guide Configuring Windows Systems for Monitoring with SNMP – ScienceLogic
A
Explanation:
SNMP (Simple Network Management Protocol) is a protocol that allows network devices to communicate with a monitoring system and provide information about their status, performance, and configuration. SNMP relies on MIBs (Management Information Bases), which are collections of objects that define the types of information that can be accessed or modified on a device1.
When a firewall replacement occurs, the new firewall may have a different MIB than the old one, which means that the monitoring system may not be able to recognize or interpret the data sent by the new firewall. This can cause some alarms and metrics related to network availability to stop updating on the monitoring system. To fix this, the network administrator should modify the device’s MIB on the monitoring system, so that it matches the MIB of the new firewall and can correctly process the SNMP data2.
The other options are not relevant to the issue. Configuring syslog to send events to the monitoring system would not affect the SNMP data, as syslog is a different protocol that sends log messages from network devices to a central server. Using port mirroring to redirect traffic to the monitoring system would not help, as port mirroring is a technique that copies traffic from one port to another for analysis or troubleshooting purposes, but does not change the format or content of the traffic. Deploying SMB to transfer data to the monitoring system would not work, as SMB is a protocol that allows file sharing and access between network devices, but does not support SNMP data.
Reference
Grafana & Prometheus SNMP: advanced network monitoring guide Configuring Windows Systems for Monitoring with SNMP – ScienceLogic
Question #2
A network architect is developing documentation for an upcoming IPv4/IPv6 dual-stack implementation
The architect wants to shorten the following IPv6 address:
ef82:0000:00O0:000O:0O00:1ab1:1234:1bc2.
Which of the following is the MOST appropriate shortened version?
- A . ef82:0:lab1:1234:1bc2
- B . ef82:0:;1ab1:1234:1bc2
- C . ef82:0:0:0:0:1ab1:1234:1bc2
- D . ef82::1ab1:1234:1bc2
Correct Answer: D
D
Explanation:
The most appropriate shortened version of the IPv6 address ef82:0000:00O0:000O:0O00:1ab1:1234:1bc2 is ef82::1ab1:1234:1bc2. IPv6 addresses are 128-bit hexadecimal values that are divided into eight groups of 16 bits each, separated by colons. IPv6 addresses can be shortened by using two rules: omitting leading zeros within each group, and replacing one or more consecutive groups of zeros with a double colon (::). Only one double colon can be used in an address. Applying these rules to the given address results in ef82::1ab1:1234:1bc2.
Reference: CompTIA Network+ N10-008 Certification Study Guide, page 114; The Official CompTIA Network+ Student Guide (Exam N10-008), page 5-7.
D
Explanation:
The most appropriate shortened version of the IPv6 address ef82:0000:00O0:000O:0O00:1ab1:1234:1bc2 is ef82::1ab1:1234:1bc2. IPv6 addresses are 128-bit hexadecimal values that are divided into eight groups of 16 bits each, separated by colons. IPv6 addresses can be shortened by using two rules: omitting leading zeros within each group, and replacing one or more consecutive groups of zeros with a double colon (::). Only one double colon can be used in an address. Applying these rules to the given address results in ef82::1ab1:1234:1bc2.
Reference: CompTIA Network+ N10-008 Certification Study Guide, page 114; The Official CompTIA Network+ Student Guide (Exam N10-008), page 5-7.
Question #3
A network technician is investigating a trouble ticket for a user who does not have network connectivity. All patch cables between the wall jacks and computers in the building were upgraded over the weekend from Cat 5 to Cat 6. The newly installed cable is crimped With a TIA/EIA 568A on one end and a TIA/EIA 568B on the other end.
Which of the following should the technician do to most likely fix the issue?
- A . Ensure the switchport has POE enabled.
- B . Crimp the cable as a straight-through cable.
- C . Ensure the switchport has STP enabled.
- D . Crimp the cable as a rollover cable.
Correct Answer: B
B
Explanation:
Crimping the cable as a straight-through cable is the most likely fix for the issue where users are unable to access any network resources after upgrading from Cat 5 to Cat 6 cables. Crimping is a process of attaching connectors to the ends of cables using a tool called a crimper. A straight-through cable is a type of twisted-pair cable that has the same wiring scheme on both ends, meaning that each pin on one end is connected to the same pin on the other end. A straight-through cable is used to connect devices that operate on different layers of the OSI model, such as a computer and a switch, or a switch and a router. If the newly installed cable is crimped with TIA/EIA 568A on one end and TIA/EIA 568B on the other end, it becomes a crossover cable. A crossover cable is a type of twisted-pair cable that has opposite wiring schemes on both ends, meaning that each pin on one end is connected to a different pin on the other end. A crossover cable is used to connect devices that operate on the same layer of the OSI model, such as two computers or two switches. Using a crossover cable instead of a straight-through cable can cause network communication errors or failures.
Reference: [CompTIA Network+ Certification Exam Objectives], Straight Through vs Crossover Cable: What’s The Difference?
B
Explanation:
Crimping the cable as a straight-through cable is the most likely fix for the issue where users are unable to access any network resources after upgrading from Cat 5 to Cat 6 cables. Crimping is a process of attaching connectors to the ends of cables using a tool called a crimper. A straight-through cable is a type of twisted-pair cable that has the same wiring scheme on both ends, meaning that each pin on one end is connected to the same pin on the other end. A straight-through cable is used to connect devices that operate on different layers of the OSI model, such as a computer and a switch, or a switch and a router. If the newly installed cable is crimped with TIA/EIA 568A on one end and TIA/EIA 568B on the other end, it becomes a crossover cable. A crossover cable is a type of twisted-pair cable that has opposite wiring schemes on both ends, meaning that each pin on one end is connected to a different pin on the other end. A crossover cable is used to connect devices that operate on the same layer of the OSI model, such as two computers or two switches. Using a crossover cable instead of a straight-through cable can cause network communication errors or failures.
Reference: [CompTIA Network+ Certification Exam Objectives], Straight Through vs Crossover Cable: What’s The Difference?
Question #4
Due to a surge in business, a company is onboarding an unusually high number of salespeople. The salespeople are assigned desktops that are wired to the network. The last few salespeople to be onboarded are able to access corporate materials on the network but not sales-specific resources.
Which of the following is MOST likely the cause?
- A . The switch was configured with port security.
- B . Newly added machines are running into DHCP conflicts.
- C . The IPS was not configured to recognize the new users.
- D . Recently added users were assigned to the wrong VLAN
Correct Answer: D
D
Explanation:
A VLAN (Virtual Local Area Network) is a logical grouping of network devices that share the same broadcast domain, regardless of their physical location or connection1.
VLANs can be used to segment the network into different departments, functions, or security levels, and to improve the performance, security, and manageability of the network1.
To access the resources on a VLAN, a device needs to be assigned to the same VLAN ID, either statically or dynamically, and the switch needs to be configured to support VLAN tagging and trunking12.
In this scenario, the most likely cause of the problem is that the last few salespeople were assigned to the wrong VLAN, either by mistake or by lack of available ports on the correct VLAN3.
This would explain why they can access the corporate materials on the network, which are probably shared across all VLANs, but not the sales-specific resources, which are probably restricted to the sales VLAN3.
The other options are less likely to cause the problem, as they would result in different symptoms or errors, such as:
The switch was configured with port security: Port security is a feature that limits the number of MAC addresses that can be learned on a switch port, and prevents unauthorized devices from accessing the network. If port security was the cause, the new devices would not be able to connect to the network at all, or they would trigger a security violation and shut down the port.
Newly added machines are running into DHCP conflicts: DHCP (Dynamic Host Configuration Protocol) is a protocol that assigns IP addresses and other network configuration parameters to devices automatically. A DHCP conflict occurs when two devices have the same IP address on the network, which causes connectivity issues and IP address errors. If DHCP conflicts were the cause, the new devices would not be able to access any network resources, not just the sales-specific ones.
The IPS was not configured to recognize the new users: IPS (Intrusion Prevention System) is a device or a software that monitors the network traffic and blocks or alerts on any malicious or suspicious activity. If the IPS was not configured to recognize the new users, it might flag their traffic as anomalous or unauthorized, and block or drop their packets. However, this would affect their access to all network resources, not just the sales-specific ones, and it would also generate IPS logs or alerts that could be checked by the network administrator.
Reference:
1: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 7: Virtual Networking, pp. 279-282
2: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 7: Virtual Networking, pp. 283-287
3: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 7: Virtual Networking, p. 288
: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 14: Network Security, pp. 581-582
: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 11: Network Services, pp. 447-449
: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 14: Network Security, pp. 589-590
D
Explanation:
A VLAN (Virtual Local Area Network) is a logical grouping of network devices that share the same broadcast domain, regardless of their physical location or connection1.
VLANs can be used to segment the network into different departments, functions, or security levels, and to improve the performance, security, and manageability of the network1.
To access the resources on a VLAN, a device needs to be assigned to the same VLAN ID, either statically or dynamically, and the switch needs to be configured to support VLAN tagging and trunking12.
In this scenario, the most likely cause of the problem is that the last few salespeople were assigned to the wrong VLAN, either by mistake or by lack of available ports on the correct VLAN3.
This would explain why they can access the corporate materials on the network, which are probably shared across all VLANs, but not the sales-specific resources, which are probably restricted to the sales VLAN3.
The other options are less likely to cause the problem, as they would result in different symptoms or errors, such as:
The switch was configured with port security: Port security is a feature that limits the number of MAC addresses that can be learned on a switch port, and prevents unauthorized devices from accessing the network. If port security was the cause, the new devices would not be able to connect to the network at all, or they would trigger a security violation and shut down the port.
Newly added machines are running into DHCP conflicts: DHCP (Dynamic Host Configuration Protocol) is a protocol that assigns IP addresses and other network configuration parameters to devices automatically. A DHCP conflict occurs when two devices have the same IP address on the network, which causes connectivity issues and IP address errors. If DHCP conflicts were the cause, the new devices would not be able to access any network resources, not just the sales-specific ones.
The IPS was not configured to recognize the new users: IPS (Intrusion Prevention System) is a device or a software that monitors the network traffic and blocks or alerts on any malicious or suspicious activity. If the IPS was not configured to recognize the new users, it might flag their traffic as anomalous or unauthorized, and block or drop their packets. However, this would affect their access to all network resources, not just the sales-specific ones, and it would also generate IPS logs or alerts that could be checked by the network administrator.
Reference:
1: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 7: Virtual Networking, pp. 279-282
2: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 7: Virtual Networking, pp. 283-287
3: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 7: Virtual Networking, p. 288
: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 14: Network Security, pp. 581-582
: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 11: Network Services, pp. 447-449
: CompTIA Network+ N10-008 Cert Guide, 1st Edition, Chapter 14: Network Security, pp. 589-590
Question #5
A bank installed a new smart TV to stream online video services, but the smart TV was not able to connect to the branch Wi-Fi. The next day. a technician was able to connect the TV to the Wi-Fi, but a bank laptop lost network access at the same time.
Which of the following is the MOST likely cause?
- A . DHCP scope exhaustion
- B . AP configuration reset
- C . Hidden SSID
- D . Channel overlap
Correct Answer: A
A
Explanation:
DHCP scope exhaustion is the situation when a DHCP server runs out of available IP addresses to assign to clients. DHCP stands for Dynamic Host Configuration Protocol, which is a network protocol that automatically assigns IP addresses and other configuration parameters to clients on a network. A DHCP scope is a range of IP addresses that a DHCP server can distribute to clients. If the DHCP scope is exhausted, new clients will not be able to obtain an IP address and connect to the network. This can explain why the smart TV was not able to connect to the branch Wi-Fi on the first day, and why the bank laptop lost network access on the next day when the TV was connected. The technician should either increase the size of the DHCP scope or reduce the lease time of the IP addresses to avoid DHCP scope exhaustion.
Reference: [CompTIA Network+ Certification Exam Objectives], DHCP Scope Exhaustion -.
What Is It? How Do You Fix It?
A
Explanation:
DHCP scope exhaustion is the situation when a DHCP server runs out of available IP addresses to assign to clients. DHCP stands for Dynamic Host Configuration Protocol, which is a network protocol that automatically assigns IP addresses and other configuration parameters to clients on a network. A DHCP scope is a range of IP addresses that a DHCP server can distribute to clients. If the DHCP scope is exhausted, new clients will not be able to obtain an IP address and connect to the network. This can explain why the smart TV was not able to connect to the branch Wi-Fi on the first day, and why the bank laptop lost network access on the next day when the TV was connected. The technician should either increase the size of the DHCP scope or reduce the lease time of the IP addresses to avoid DHCP scope exhaustion.
Reference: [CompTIA Network+ Certification Exam Objectives], DHCP Scope Exhaustion -.
What Is It? How Do You Fix It?
Question #6
An AP uses a 98ft (30m) Cat 6 cable to connect to an access switch. The cable is wired through a duct close to a three-phase motor installation. Anytime the three-phase is turned on, all users connected to the switch experience high latency on the network.
Which Of the following is MOST likely the cause Of the issue?
- A . Interference
- B . Attenuation
- C . Open circuit
- D . Short circuit
Correct Answer: A
A
Explanation:
Interference is a phenomenon that occurs when unwanted signals or noise affect the transmission or reception of data signals on a network. Interference can cause network issues such as high latency, low throughput, packet loss, or errors. Interference can be caused by various sources, such as electromagnetic fields, radio waves, power lines, or electrical devices. In this scenario, the three-phase motor installation is a source of interference that affects the Cat 6 cable that connects the AP to the access switch. The cable is wired through a duct close to the motor installation, which exposes it to the electromagnetic fields generated by the motor. Anytime the motor is turned on, the interference causes high latency for all users connected to the switch.
A
Explanation:
Interference is a phenomenon that occurs when unwanted signals or noise affect the transmission or reception of data signals on a network. Interference can cause network issues such as high latency, low throughput, packet loss, or errors. Interference can be caused by various sources, such as electromagnetic fields, radio waves, power lines, or electrical devices. In this scenario, the three-phase motor installation is a source of interference that affects the Cat 6 cable that connects the AP to the access switch. The cable is wired through a duct close to the motor installation, which exposes it to the electromagnetic fields generated by the motor. Anytime the motor is turned on, the interference causes high latency for all users connected to the switch.
Question #7
Which of the following documents is MOST likely to be associated with identifying and documenting critical applications?
- A . Software development life-cycle policy
- B . User acceptance testing plan
- C . Change management policy
- D . Business continuity plan
Correct Answer: D
D
Explanation:
A business continuity plan (BCP) is a document that outlines the procedures and strategies to ensure the continuity of critical business functions in the event of a disaster or disruption. A BCP is most likely to be associated with identifying and documenting critical applications that are essential for the organization’s operations and recovery. A BCP also defines the roles and responsibilities of the staff, the backup and restore processes, the communication channels, and the testing and maintenance schedules.
Reference: Network+ Study Guide Objective 5.2: Explain disaster recovery and business continuity concepts.
D
Explanation:
A business continuity plan (BCP) is a document that outlines the procedures and strategies to ensure the continuity of critical business functions in the event of a disaster or disruption. A BCP is most likely to be associated with identifying and documenting critical applications that are essential for the organization’s operations and recovery. A BCP also defines the roles and responsibilities of the staff, the backup and restore processes, the communication channels, and the testing and maintenance schedules.
Reference: Network+ Study Guide Objective 5.2: Explain disaster recovery and business continuity concepts.
Question #8
A server application requires large amounts of data to be sent at a consistent rate.
Which of the following should an engineer most likely configure to meet these requirements?
- A . Link speed
- B . Jumbo frames
- C . Switch Virtual Interface
- D . Spanning tree
Correct Answer: B
B
Explanation:
Jumbo frames are Ethernet frames that have a payload size greater than the standard 1500 bytes.
Jumbo frames can carry more data in each frame, which reduces the overhead and improves the throughput and efficiency of data transmission. Jumbo frames are commonly used in storage area networks (SANs), where large amounts of data need to be transferred between servers and storage devices
B
Explanation:
Jumbo frames are Ethernet frames that have a payload size greater than the standard 1500 bytes.
Jumbo frames can carry more data in each frame, which reduces the overhead and improves the throughput and efficiency of data transmission. Jumbo frames are commonly used in storage area networks (SANs), where large amounts of data need to be transferred between servers and storage devices
Question #9
A network technician is installing a wireless network in an office building. After performing a site survey, the technician determines the area is very saturated on the 2.4GHz and the 5GHz bands.
Which of the following wireless standards should the network technician implement?
- A . 802.11ac
- B . 802.11 ax
- C . 802.11g
- D . 802.11n
Correct Answer: B
B
Explanation:
B
Explanation:
Question #10
Which of the following describes a network in which users and devices need to mutually authenticate before any network resource can be accessed?
- A . Least privilege
- B . Local authentication
- C . Zero trust
- D . Need to know
Correct Answer: C
C
Explanation:
A zero trust network is a network in which users and devices need to mutually authenticate before any network resource can be accessed. A zero trust network assumes that no one and nothing can be trusted by default, even if they were previously verified or are within the network perimeter. A zero trust network uses various technologies and practices, such as data and log aggregation, cybersecurity analytics, continuous diagnostics and mitigation, user behavior analytics, micro segmentation, and identity and access management, to enforce granular and dynamic policies based on the context and behavior of the users and devices123.
Reference:
What is Zero Trust? | Internet of Things | CompTIA3
The Death of the Perimeter: Zero Trust is (Almost) Here to Stay | Cybersecurity | CompTIA2 CompTIA Network+ Certification Exam N10-008 Practice Test 17 – ExamCompass1
C
Explanation:
A zero trust network is a network in which users and devices need to mutually authenticate before any network resource can be accessed. A zero trust network assumes that no one and nothing can be trusted by default, even if they were previously verified or are within the network perimeter. A zero trust network uses various technologies and practices, such as data and log aggregation, cybersecurity analytics, continuous diagnostics and mitigation, user behavior analytics, micro segmentation, and identity and access management, to enforce granular and dynamic policies based on the context and behavior of the users and devices123.
Reference:
What is Zero Trust? | Internet of Things | CompTIA3
The Death of the Perimeter: Zero Trust is (Almost) Here to Stay | Cybersecurity | CompTIA2 CompTIA Network+ Certification Exam N10-008 Practice Test 17 – ExamCompass1