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  2. CompTIA Certification
  3. N10-008 Exam
  4. CompTIA.N10-008.v2025-06-03.q684 Dumps
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Question 641

Which of the following protocols can be used to change device configurations via encrypted and authenticated sessions? (Select TWO).

Correct Answer: A,B
The end user can access local network shares and intranet pages, which means that the IP address and the subnet mask are configured correctly and the network interface is working properly.
However, the end user is unable to access the internet or remote resources, which means that there is a problem with the name resolution or the routing of the traffic.
The gateway address is responsible for routing the traffic to the destination network, which could be on the internet or another subnet. If the gateway address is incorrect, the end user would not be able to reach any network outside the local subnet.
The DNS servers are responsible for resolving the domain names to the IP addresses, which are needed to communicate with the internet or remote resources. If the DNS servers are incorrect, the end user would not be able to resolve the names of the websites or servers they want to access.
Therefore, the most likely cause of the connectivity issue is that the DNS servers need to be reconfigured with the correct addresses. Reference:
CompTIA Network+ N10-008 Study Guide, Chapter 2: Network Protocols and Services, Section 2.2: TCP/IP Suite, p. 76-77 Network+ N10-008 Practice Test, Question 359 CompTIA Network+ (N10-008) Performance-based Questions (PBQs), Part 1, 1:36
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Question 642

A workstation is configured with the following network details:

Software on the workstation needs to send a query to the local subnet broadcast address. To which of the following addresses should the software be configured to send the query?

Correct Answer: D
Explanation
The software on the workstation should be configured to send the query to 10.1.2.255, which is the local subnet broadcast address. A broadcast address is a special address that allows a device to send a message to all devices on the same subnet. It is usually derived by setting all the host bits to 1 in the network address. In this case, the network address is 10.1.2.0/27, which has 27 network bits and 5 host bits. By setting all the host bits to 1, we get 10.1.2.31 as the broadcast address in decimal notation, or 10.1.2.255 in dotted decimal notation.
References: https://www.cisco.com/c/en/us/support/docs/ip/routing-information-protocol-rip/13788-3.html
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Question 643

A network administrator is reviewing the following metrics from a network management system regarding a switchport. The administrator suspects an issue because users are calling in regards to the switchport's performance:

Based on the information in the chart above, which of the following fs the cause of these performance issues?

Correct Answer: A
The maximum transmission unit (MTU) is the largest size of a data packet that can be transmitted over a network link12. The MTU is usually configured on the network devices, such as routers and switches, to match the physical or logical characteristics of the link34.
If the connected device sends a packet that is larger than the MTU of the switchport, the packet will be either fragmented or dropped, depending on the protocol and configuration12. This can cause performance issues, such as increased latency, reduced throughput, and packet loss56.
Based on the information in the chart, the switchport has a high number of giants, which are packets that exceed the MTU of the link78. This indicates that the connected device is exceeding the configured MTU of the switchport, and thus causing the performance issues.
The other options are not supported by the information in the chart. The number of packets sent or received by the connected device does not necessarily affect the performance of the switchport, unless there is congestion or buffer overflow. The uptime of the switchport does not affect its performance, unless there is a hardware or software failure. The number of CRCs (cyclic redundancy checks) indicates the error rate of the link, and the switchport has zero CRCs, which means there are no errors detected910.
Therefore, the best answer is A. The connected device is exceeding the configured MTU.
Reference:
1: CompTIA Network+ N10-008 Certification Study Guide, page 67
2: CompTIA Network+ Certification Exam Objectives, page 7
3: [What is Maximum Transmission Unit (MTU)? - Definition from WhatIs.com]
4: [MTU Size Issues | Network World]
5: [How MTU Size Affects Network Performance | SolarWinds MSP]
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Question 644

A network technician receives a report about a performance issue on a client PC that is connected to port 1/3 on a network switch. The technician observes the following configuration output from the switch:

Which of the following is a cause of the issue on port 1/3?

Correct Answer: D
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Question 645

An IT director is setting up new disaster and HA policies for a company. Limited downtime is critical to operations. To meet corporate requirements, the director set up two different datacenters across the country that will stay current on data and applications. In the event of an outage, the company can immediately switch from one datacenter to another.
Which of the following does this BEST describe?

Correct Answer: E
A hot site is a leased facility that contains all the resources needed for full operation. This environment includes computers, raised flooring, full utilities, electrical and communications wiring, networking equipment, and uninterruptible power supplies (UPSs). The only resource that must be restored at a hot site is the organization's data, usually only partially. It should only take a few minutes to bring a hot site to full operation.
Although a hot site provides the quickest recovery, it is the most expensive to maintain. In addition, it can be administratively hard to manage if the organization requires proprietary hardware or software. A hot site requires the same security controls as the primary facility and full redundancy, including hardware, software, and communication wiring.
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