N10-009 New Study Materials, N10-009 New Real Exam

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CompTIA N10-009 Exam Syllabus Topics:

Topic	Details
Topic 1	Cloud concepts and connectivity options, and Common networking ports.
Topic 2	Network Security: This section of the exam for cybersecurity specialists and network security administrators covers the importance of basic network security concepts, Various types of attacks and their impact on the network, application of network security features, defense techniques, and solutions.\| Network Troubleshooting: For help desk technicians and network support specialists, this section covers troubleshooting methodology, troubleshooting common cabling and physical interface issues, troubleshooting common issues with network services, and use of appropriate tools or protocols to solve networking issues.
Topic 3	Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and
Topic 4	Network Operations: For IT operations staff and network operations center (NOC) technicians, this part of the exam covers the purpose of organizational processes and procedures and use of network monitoring technologies.
Topic 5	Selection and configuration of wireless devices.
Topic 6	OSI reference model concepts, Comparison of networking appliances, applications, and functions

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CompTIA Network+ Certification Exam Sample Questions (Q187-Q192):

NEW QUESTION # 187
A network technician receives a new ticket while working on another issue. The new ticket is critical to business operations. Which of the following documents should the technician reference to determine which ticket to complete first?

A. NDA
B. MOU
C. AUP
D. SLA

Answer: D

Explanation:
AnSLA (Service Level Agreement)defines performance expectations, includingresponse time, prioritization, and resolution timefor services and support issues. It helps the technician determine which task hashigher priority based on business impact.
* A. NDA (Non-Disclosure Agreement)relates to confidentiality, not task prioritization.
* B. AUP (Acceptable Use Policy)defines user behavior, not issue handling.
* D. MOU (Memorandum of Understanding)outlines informal agreements and doesn't define ticket priorities.
#Reference:
CompTIA Network+ N10-009 Official Objectives: 4.1 - Compare and contrast common documentation types.

NEW QUESTION # 188
Before using a guest network, an administrator requires users to accept the terms of use Which of the following is the best way to accomplish this goal?

A. Captive portal
B. Pre-shared key
C. WPA2 encryption
D. Autonomous access point

Answer: A

Explanation:
A captive portal is a web page that users must view and interact with before being granted access to a network. It is commonly used in guest networks to enforce terms of use agreements. When a user connects to the network, they are redirected to this portal where they must accept the terms of use before proceeding. This method ensures that users are aware of and agree to the network's policies, making it the best choice for this scenario.

NEW QUESTION # 189
A network administrator performed upgrades on a server and installed a new NIC to improve performance. Following the upgrades, usera are unable to reach the server. Which of the following is the most likely reason.

A. TX/RX was transposed.
B. The PoE power budget was exceeded.
C. An incorrect cable type was installed.
D. A port security violation occured.

Answer: C

Explanation:
When a network administrator installs a new Network Interface Card (NIC) and users are unable to reach the server, one of the common issues is the use of an incorrect cable type. Network cables must match the specifications required by the NIC and the network infrastructure (e.g., Cat5e, Cat6 for Ethernet).
NIC Compatibility: The new NIC might require a specific type of cable to function properly. Using a cable not rated for the NIC's required speeds or capabilities can result in connectivity issues.
Cable Standards: Different NICs and network devices might need different cabling standards (straight-through vs. crossover cables, or specific fiber optic types).
Connection Types: Ensuring that the cable connectors are appropriate for the NIC ports (e.g., RJ45 for Ethernet, LC connectors for fiber optics).

NEW QUESTION # 190
A network engineer performed a migration to a new mail server. The engineer changed the MX record, verified the change was accurate, and confirmed the new mail server was reachable via the IP address in the A record. However, users are not receiving email. Which of the following should the engineer have done to prevent the issue from occurring?

A. Change the email client configuration to match the MX record.
B. Reduce the TTL record prior to the MX record change.
C. Update the NS record to reflect the IP address change.
D. Perform a DNS zone transfer prior to the MX record change.

Answer: B

Explanation:
Understanding TTL (Time to Live):
TTL is a value in a DNS record that tells how long that record should be cached by DNS servers and clients. A higher TTL value means that the record will be cached longer, reducing the load on the DNS server but delaying the propagation of changes.
Impact of TTL on DNS Changes:
When an MX record change is made, it may take time for the change to propagate across all DNS servers due to the TTL setting. If the TTL is high, old DNS information might still be cached, leading to email being directed to the old server.
Best Practice Before Making DNS Changes:
To ensure that changes to DNS records propagate quickly, it is recommended to reduce the TTL value to a lower value (such as 300 seconds or 5 minutes) well in advance of making the changes. This ensures that any cached records will expire quickly, and the new records will be used sooner.
Verification of DNS Changes:
After reducing the TTL and making the change to the MX record, it is important to verify the propagation using tools like dig or nslookup.
Comparison with Other Options:
Change the email client configuration to match the MX record: Email clients generally do not need to match the MX record directly; they usually connect to a specific mail server specified in their settings.
Perform a DNS zone transfer prior to the MX record change: DNS zone transfers are used to replicate DNS records between DNS servers, but they are not related to the propagation of individual record changes.
Update the NS record to reflect the IP address change: NS records specify the DNS servers for a domain and are not related to MX record changes.
Reference:
CompTIA Network+ study materials and DNS best practices.

NEW QUESTION # 191
A company's network is experiencing high latency and packet loss during peak hours. Network monitoring tools show increased traffic on a switch. Which of the following should a network technician implement to reduce the network congestion and improve performance?

A. Port mirroring
B. Quality of Service
C. Load balancing
D. Spanning Tree Protocol

Answer: B

Explanation:
Quality of Service (QoS): This is a feature used in networking to prioritize certain types of traffic. By configuring QoS, network administrators can allocate higher bandwidth to time-sensitive applications like VoIP, video conferencing, or critical business applications during peak usage times. This helps to reduce latency and packet loss, which are often caused by congestion.
Load Balancing (A): While load balancing is useful in distributing traffic across multiple servers or paths, it does not address congestion on a single switch.
Port Mirroring (B): This is used for monitoring network traffic for troubleshooting and diagnostics but does not alleviate congestion.
Spanning Tree Protocol (D): STP prevents switching loops in redundant network topologies, but it is not designed to handle traffic prioritization or congestion issues.

NEW QUESTION # 192
......

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N10-009 New Study Materials, N10-009 New Real Exam

CompTIA N10-009 Exam Syllabus Topics:

N10-009 New Real Exam | N10-009 Valid Exam Camp

CompTIA Network+ Certification Exam Sample Questions (Q187-Q192):

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