Free Access to CompTIA.N10-008.v2025-06-03.q684 with Valid Practice Test (Page 10)

Question 41

A firewall administrator observes log entries of traffic being allowed to a web server on port 80 and port 443. The policy for this server is to only allow traffic on port 443. The firewall administrator needs to investigate how this change occurred to prevent a reoccurrence. Which of the following should the firewall administrator do next?

A.Remove the server object from the firewall policy.
B.Consult the firewall audit logs.
C.Change the policy to allow port 80.
D.Check the network baseline.

Question 42

A network technician has multimode fiber optic cable available in an existing IDF. Which of the following Ethernet standards should the technician use to connect the network switch to the existing fiber?

A.10GBaseT
B.1000BaseT
C.1000BaseSX
D.1000BaseLX

Question 43

Due to space constraints in an IDF, a network administrator can only a do a single switch to accommodate three data networks. The administrator needs a configuration that will allow each device to access its expected network without additional connections. The configuration must also allow each device to access the rest of the network. Which of the following should the administrator do to meet these requirements? (Select TWO).

A.Untag the three VLANs across the uplink
B.Tag an individual VLAN across the uplink
C.Untag an individual VLAN per device port
D.Tag an individual VLAN per device port
E.Tag the three VLANs across the uplink.
F.Tag the three VLANs per device port.

Correct Answer: C,E

To allow each device to access its expected network without additional connections, the administrator needs to configure VLANs (virtual LANs) on the switch. VLANs are logical groups of devices that share the same broadcast domain, regardless of their physical location or connection. VLANs can improve network performance, security, and management by isolating traffic and reducing broadcast storms. To configure VLANs on the switch, the administrator needs to assign each device port to a specific VLAN and set the VLAN tagging mode. VLAN tagging is a method of adding a VLAN identifier to the Ethernet frames to indicate which VLAN they belong to. There are two types of VLAN tagging: untagged and tagged. Untagged VLAN tagging means that the switch removes the VLAN identifier from the frames before sending them to the device port. This is suitable for end devices that do not support VLAN tagging, such as PCs, printers, etc. Tagged VLAN tagging means that the switch keeps the VLAN identifier on the frames when sending them to the device port. This is suitable for devices that support VLAN tagging, such as routers, servers, other switches, etc. To allow each device to access the rest of the network, the administrator needs to configure a trunk port on the switch that connects to the uplink. A trunk port is a port that can carry traffic from multiple VLANs using tagged VLAN tagging. This way, the switch can send and receive frames from different VLANs to and from the rest of the network. Therefore, the administrator should do the following to meet the requirements:
Untag an individual VLAN per device port. This will assign each device port to a specific VLAN and remove the VLAN identifier from the frames before sending them to the device port. This will allow each device to access its expected network without additional connections.
Tag the three VLANs across the uplink. This will configure a trunk port on the switch that connects to the uplink and add the VLAN identifier to the frames before sending them to the uplink. This will allow the switch to carry traffic from multiple VLANs to and from the rest of the network.
Reference:
VLANs and Trunks
VLAN Tagging Explained with DTP Protocol
Network + N10-008 practice exam
[CompTIA N10-008 Free Certification Exam Material]
[Free Practice Questions for CompTIA Network+Exam (N10-008)]

Question 44

A user reports that a crucial fileshare is unreachable following a network upgrade that was completed the night before. A network technician confirms the problem exists. Which of the following troubleshooting Steps should the network technician perform NEXT?

A.Establish a theory of probable cause.
B.Implement a solution to fix the problem.
C.Create a plan of action to resolve the problem.
D.Document the problem and the solution.

Correct Answer: A

Establishing a theory of probable cause is the third step in the general troubleshooting process, after identifying the problem and gathering information. Establishing a theory of probable cause involves using the information gathered to formulate one or more possible explanations for the problem and testing them to verify or eliminate them. In this scenario, the network technician has confirmed the problem exists and should proceed to establish a theory of probable cause based on the information available, such as the network upgrade that was completed the night before.
Implementing a solution to fix the problem is the fifth step in the general troubleshooting process, after establishing a plan of action. Implementing a solution involves applying the chosen method or technique to resolve the problem and verifying its effectiveness. In this scenario, the network technician has not established a plan of action yet and should not implement a solution without knowing the cause of the problem.
Creating a plan of action to resolve the problem is the fourth step in the general troubleshooting process, after establishing a theory of probable cause. Creating a plan of action involves selecting the best method or technique to address the problem based on the available resources, constraints, and risks. In this scenario, the network technician has not established a theory of probable cause yet and should not create a plan of action without knowing the cause of the problem.
Documenting the problem and the solution is the seventh and final step in the general troubleshooting process, after implementing preventive measures. Documenting the problem and the solution involves recording the details of the problem, its symptoms, its cause, its solution, and its preventive measures for future reference and improvement. In this scenario, the network technician has not implemented preventive measures yet and should not document the problem and the solution without resolving and preventing it.

Question 45

A network engineer is investigating reports of poor network performance. Upon reviewing a report, the engineer finds that jitter at the office is greater than 10ms on the only WAN connection available. Which of the following would be MOST affected by this statistic?

A.A VoIP sales call with a customer
B.An in-office video call with a coworker
C.Routing table from the ISP
D.Firewall CPU processing time

Question 41

Question 42

Question 43

Question 44

Question 45

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