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CompTIA N10-009 Prüfungsplan:

Thema
Einzelheiten

Thema 1

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.

Thema 2

OSI reference model concepts, Comparison of networking appliances, applications, and functions

Thema 3

Cloud concepts and connectivity options, and Common networking ports.

Thema 4

Selection and configuration of wireless devices.

Thema 5

Networking Concepts: For network administrators and IT support professionals, this domain covers

CompTIA Network+ Certification Exam N10-009 Prüfungsfragen mit Lösungen (Q199-Q204):

199. Frage
Which of the following fiber connector types is the most likely to be used on a network interface card?

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

Antwort: A

Begründung:
* 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.

200. Frage
Which of the following should be used to obtain remote access to a network appliance that has failed to start up properly?

A. Crash cart
B. Secure Shell (SSH)
C. Jump box
D. Out-of-band management

Antwort: D

Begründung:
If a network appliance fails to start, standard remote access methods like SSH won't work. Instead, Out-of- Band (OOB) management provides a dedicated access path (e.g., a console port or iDRAC/iLO), allowing administrators to troubleshoot devices even when the network is down.
Breakdown of Options:
A: Crash cart - A physical monitor/keyboard setup, not a remote solution.
B: Jump box - A hardened system used for secure remote access but requires the device to be operational.
C: Secure Shell (SSH) - Requires the device to be fully booted and network-connected.
D: Out-of-band management - # Correct answer. Provides independent access for troubleshooting failed network devices.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 4.3: Explain network device management concepts.

201. Frage
A network engineer needs to virtualize network services, including a router at a remote branch location. Which of the following solutions meets the requirements?

A. NFV
B. VPC
C. VLAN
D. VRF

Antwort: A

Begründung:
Network Functions Virtualization (NFV): NFV is a technology that virtualizes network services like routing, firewalls, and load balancers. It allows these services to run on virtual machines rather than requiring dedicated hardware. This is ideal for remote branch locations where deploying physical devices is costly and complex.

202. Frage
Which of the following is an XML-based security concept that works by passing sensitve information about users, such as log-in information and attributes, to providers.

A. IAM
B. RADIUS
C. MFA
D. SAML

Antwort: D

Begründung:
Security Assertion Markup Language (SAML) is an XML-based standard used for exchanging authentication and authorization data between parties, particularly between an identity provider (IdP) and a service provider (SP). SAML is commonly used in Single Sign-On (SSO) solutions to pass sensitive user information, such as login credentials and attributes, securely between the identity provider and the service provider.
SAML (Security Assertion Markup Language): Facilitates web-based authentication and authorization, allowing users to access multiple services with a single set of credentials.
XML-based: Uses XML to encode the authentication and authorization data, ensuring secure transmission of user information.
Identity Federation: Enables secure sharing of identity information across different security domains, making it ideal for enterprise SSO solutions.

203. Frage
A company experiences an incident involving a user who connects an unmanaged switch to the network.
Which of the following technologies should the company implement to help avoid similar incidents without conducting an asset inventory?

A. Port security
B. Screened subnet
C. MAC filtering
D. 802.1X

Antwort: A

Begründung:
Port security is a Layer 2 security feature that restricts the number of devices connecting to a network switch port. It helps prevent unauthorized devices, such as an unmanaged switch, from being connected to the network.
How Port Security Works:
Limits the number of MAC addresses that can connect to a port.
Can shut down or restrict the port if an unauthorized device is detected.
Prevents users from plugging in unauthorized networking equipment (e.g., unmanaged switches, hubs).
Incorrect Options:
A: Screened Subnet: A screened subnet (DMZ) is used for isolating external-facing servers, not for controlling unauthorized network connections.
B: 802.1X: Provides authentication for devices but requires a RADIUS server, which is a more complex solution than port security.
C: MAC Filtering: Controls which MAC addresses can connect but is difficult to manage and can be spoofed.
Reference:
CompTIA Network+ N10-009 Official Study Guide - Chapter on Network Security Controls

204. Frage
......

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