Question # 1 Which of the following is the most closely associated with segmenting compute resources within a single cloud account? A. Network security groupB. laaSC. VPCD. Hybrid cloud
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C. VPC
Question # 2 Which of the following devices can operate in multiple layers of the OSI model? A. HubB. SwitchC. TransceiverD. Modem
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B. Switch
Answer Description Explanation:
Understanding Switches:
Layer 2 (Data Link Layer): Traditional switches operate primarily at Layer 2, where they use MAC addresses to forward frames within a local network.
Layer 3 (Network Layer): Layer 3 switches, also known as multilayer switches, can perform routing functions using IP addresses to forward packets between different networks.
Capabilities of Multilayer Switches:
VLANs and Inter-VLAN Routing: Multilayer switches can handle VLAN (Virtual Local Area Network) configurations and perform inter-VLAN routing, enabling communication between different VLANs.
Routing Protocols: They can run routing protocols like OSPF (Open Shortest Path First) and EIGRP (Enhanced Interior Gateway Routing Protocol) to manage traffic between networks.
Comparison with Other Devices:
Hub: Operates only at Layer 1 (Physical Layer) and simply repeats incoming signals to all ports.
Transceiver: Also operates at Layer 1, converting electrical signals to optical signals and vice versa.
Modem: Primarily operates at Layer 1 and Layer 2, modulating and demodulating signals for transmission over different types of media.
Practical Application:
Multilayer switches are commonly used in enterprise networks to optimize performance and manage complex routing and switching requirements within a single device.
References:
CompTIA Network+ study materials on network devices and the OSI model.
Question # 3 Which of the following is most commonly associated with many systems sharing one IP address in the public IP-addressing space? A. PATB. NATC. VIPD. NAT64
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A. PAT
Answer Description Explanation:
Explanation: Port Address Translation (PAT) allows multiple internal devices to share a single public IP address by assigning each device a unique port number. This is the most common method used in environments where many systems need internet access but there are limited public IP addresses.
Question # 4 Which of the following steps in the troubleshooting methodology includes checking logs for recent changes? A. Identify the problem.B. Document the findings and outcomes.C. Test the theory to determine cause.D. Establish a plan of action.
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A. Identify the problem.
Question # 5 Which of the following routing protocols uses an autonomous system number?
A. IS-ISB. EIGRPC. OSPFD. BGP
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D. BGP
Answer Description Explanation:
BGP (Border Gateway Protocol) uses an Autonomous System (AS) number for its operations. An AS is a collection of IP networks and routers under the control of a single organization that presents a common routing policy to the Internet. BGP is used to exchange routing information between different ASes on the Internet, making it the only protocol among the listed options that uses an AS number.References: CompTIA Network+ study materials and RFC 4271.
Question # 6 Which of the following should be configured so users can authenticate to a wireless network using company credentials? A. SSOB. SAMLC. MFAD. RADIUS
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D. RADIUS
Question # 7 Which of the following cloud service models most likely requires the greatest up-front expense by the customer when migrating a data center to the cloud? A. Infrastructure as a serviceB. Software as a serviceC. Platform as a serviceD. Network as a service
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A. Infrastructure as a service
Answer Description Explanation:
[Reference: CompTIA Network+ Certification Exam Objectives - Cloud Models section., , ]
Question # 8 Which of the following is most likely responsible for the security and handling of personal data in Europe? A. GDPRB. SCADAC. SAMLD. PCI DSS
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A. GDPR
Answer Description Explanation:
Definition of GDPR:
General Data Protection Regulation (GDPR) is a regulation in EU law on data protection and privacy for all individuals within the European Union and the European Economic Area. It also addresses the transfer of personal data outside the EU and EEA areas.
Scope and Objectives:
GDPR aims to give individuals control over their personal data and to simplify the regulatory environment for international business by unifying the regulation within the EU.
It enforces rules about data protection, requiring companies to protect the personal data and privacy of EU citizens for transactions that occur within EU member states.
Comparison with Other Options:
SCADA (Supervisory Control and Data Acquisition): Refers to control systems used in industrial and infrastructure processes, not related to personal data protection.
SAML (Security Assertion Markup Language): A standard for exchanging authentication and authorization data between parties, not specifically for personal data protection.
PCI DSS (Payment Card Industry Data Security Standard): A set of security standards designed to ensure that all companies that accept, process, store or transmit credit card information maintain a secure environment, not specific to personal data protection in Europe.
Key Provisions:
GDPR includes provisions for data processing, data subject rights, obligations of data controllers and processors, and penalties for non-compliance.
References:
CompTIA Network+ study materials on regulatory and compliance standards.
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