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CompTIA N10-009 Exam Syllabus Topics:

Topic	Details
Topic 1	Networking Concepts: For network administrators and IT support professionals, this domain covers
Topic 2	OSI reference model concepts, Comparison of networking appliances, applications, and functions
Topic 3	Selection and configuration of wireless devices.
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	Network Implementation: For network technicians and junior network engineers, this section covers Characteristics of routing technologies, Configuration of switching technologies and features, and

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CompTIA Network+ Certification Exam Sample Questions (Q247-Q252):

NEW QUESTION # 247
Which of the following is the correct order of components in a bottom-up approach for the three-tier hierarchical model?

A. Access, core, and roof
B. Core, spine, and leaf
C. Core, root, and distribution
D. Access, distribution, and core

Answer: D

Explanation:
The three-tier hierarchical model in network design consists of three layers: access, distribution, and core. The access layer is where devices like PCs and printers connect to the network. The distribution layer aggregates the data received from the access layer switches before it is transmitted to the core layer, which is responsible for high-speed data transfer and routing. This approach improves scalability and performance in larger networks. Reference: CompTIA Network+ Exam Objectives and official study guides.

NEW QUESTION # 248
Which of the following fiber connector types is the most likely to be used on a network interface card?

A. LC
B. ST
C. MPO
D. SC

Answer: A

Explanation:
* Definition of Fiber Connector Types:
* LC (Lucent Connector):A small form-factor fiber optic connector with a push-pull latching mechanism, commonly used for high-density applications.
* SC (Subscriber Connector or Standard Connector):A larger form-factor connector with a push-pull latching mechanism, often used in datacom and telecom applications.
* ST (Straight Tip):A bayonet-style connector, typically used in multimode fiber optic networks.
* MPO (Multi-fiber Push On):A connector designed to support multiple fibers (typically 12 or 24 fibers), used in high-density cabling environments.
* Common Usage:
* LC Connectors:Due to their small size, LC connectors are widely used in network interface cards (NICs) and high-density environments such as data centers. They allow for more connections in a smaller space compared to SC and ST connectors.
* SC and ST Connectors:These are larger and more commonly used in patch panels and older fiber installations but are less suitable for high-density applications.
* MPO Connectors:Primarily used for trunk cables in data centers and high-density applications but not typically on individual network interface cards.
* Selection Criteria:
* The small form-factor and high-density capabilities of LC connectors make them the preferred choice for network interface cards, where space and connection density are critical considerations.
References:
* CompTIA Network+ study materials on fiber optics and connector types.

NEW QUESTION # 249
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. Spanning Tree Protocol
B. Port mirroring
C. Load balancing
D. Quality of Service

Answer: D

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 # 250
Which of the following network topologies contains a direct connection between every node in the network?

A. Hub-and-spoke
B. Point-to-point
C. Star
D. Mesh

Answer: D

Explanation:
In a mesh topology, every node is directly connected to every other node. This provides high redundancy and reliability, as there are multiple paths for data to travel between nodes. This topology is often used in networks where high availability is crucial.

NEW QUESTION # 251
A newtwork administrator needs to create an SVI on a Layer 3-capable device to separate voice and data traffic. Which of the following best explains this use case?

A. A physical interface used for trunking logical ports
B. A physical interface used for management access
C. A logical interface used when the number of physical ports is insufficent.
D. A logical interface used for the routing of VLANs

Answer: D

Explanation:
An SVI (Switched Virtual Interface) is a logical interface on a Layer 3-capable switch used to route traffic between VLANs. This is particularly useful in environments where voice and data traffic need to be separated, as each type of traffic can be assigned to different VLANs and routed accordingly.
SVI (Switched Virtual Interface): A virtual interface created on a switch for inter-VLAN routing.
VLAN Routing: Enables the routing of traffic between VLANs on a Layer 3 switch, allowing for logical separation of different types of traffic, such as voice and data.
Use Case: Commonly used in scenarios where efficient and segmented traffic management is required, such as in VoIP implementations.

NEW QUESTION # 252
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