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| Section | Weight | Objectives |
|---|---|---|
| Network Security | 14% | - Network hardening and secure configuration - Segmentation and traffic protection - Security concepts and frameworks - Threats, vulnerabilities, and mitigation - Authentication and access control |
| Networking Fundamentals | 23% | - OSI and TCP/IP models - IP addressing and subnetting - Ports, protocols, and services - Network devices and cabling - Network topologies and types |
| Network Operations | 19% | - Performance management and optimization - High availability and redundancy - Network monitoring and documentation - Business continuity and disaster recovery - Infrastructure automation basics |
| Network Implementations | 20% | - Physical network installation - Wireless standards and deployment - Network services configuration - Routing concepts and protocols - Switching technologies and configurations |
| Network Troubleshooting | 24% | - Troubleshooting methodology - Wireless and security troubleshooting - Connectivity issues - Performance and latency problems - Tools and command-line utilities |
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NEW QUESTION # 424
Which of the following allows for the interception of traffic between the source and destination?
Answer: B
Explanation:
An on-path attack (formerly known as a man-in-the-middle (MITM) attack) involves intercepting and potentially altering communications between two parties without their knowledge. This can be done via techniques like ARP poisoning, rogue access points, or SSL stripping.
Breakdown of Options:
A: Self-signed certificate - These are untrusted SSL certificates but do not intercept traffic.
B: VLAN hopping - VLAN hopping exploits VLAN misconfigurations but does not necessarily intercept communications.
C: On-path attack - Correct answer. This intercepts and modifies traffic between two endpoints.
D: Phishing - Phishing tricks users into revealing credentials rather than intercepting network traffic.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 3.2: Explain common security concepts.
NIST SP 800-115: Guide to Security Testing and Assessments
NEW QUESTION # 425
A network administrator receives complaints of intermittent network connectivity issues. The administrator investigates and finds that the network design contains potential loop scenarios. Which of the following should the administrator do?
Answer: C
Explanation:
Spanning Tree Protocol (STP) is designed to detect and prevent Layer 2 loops by blocking redundant paths. If loops are possible in the design, enabling STP ensures network stability.
B). Port security controls endpoint MAC addresses, not loops.
C). Speed limits address bandwidth, not loop prevention.
D). 802.1Q tagging allows VLAN separation but does not resolve loops.
Reference (CompTIA Network+ N10-009):
Domain: Network Operations - Loop prevention, spanning tree, switch design.
NEW QUESTION # 426
What type of attack occurs when attackers send fraudulent text messages pretending to be a trusted source, tricking the victim into giving up sensitive credentials?
Answer: A
Explanation:
Smishing (SMS phishing) occurs when attackers send fraudulent text messages pretending to be a trusted source, tricking the victim into giving up sensitive credentials. Since this came via text message, it qualifies as smishing.
* A. DNS poisoning corrupts name resolution.
* B. ARP spoofing manipulates MAC-to-IP mappings.
* C. Vishing is phishing via voice calls, not text.
References (CompTIA Network+ N10-009):
* Domain: Network Security - Social engineering, phishing types (smishing, vishing, spear phishing).
NEW QUESTION # 427
Which of the following types of attacks is most likely to occur after an attacker sets up an evil twin?
Answer: C
Explanation:
Comprehensive and Detailed Explanation (paraphrased, aligned to N10-009):
An evil twin is a malicious wireless access point that impersonates a legitimate SSID. Once victims connect, the attacker can intercept and manipulate traffic, performing an on-path (man-in-the-middle) attack- capturing credentials, injecting content, or downgrading encryption.
* B. DDoS overwhelms services with traffic; it's not the typical follow-on from clients joining a rogue AP.
* C. ARP spoofing is another way to become on-path on wired segments, but with an evil twin, the wireless association itself enables the on-path position.
* D. Phishing is social engineering; while an evil twin could be used to present fake portals, the primary technical posture after connection is on-path.
References (CompTIA Network+ N10-009):
* Domain: Network Security - Wireless threats (rogue APs/evil twins), traffic interception, on-path attacks.
NEW QUESTION # 428
A network technician is configuring the company's network of 100 Mbps Layer 2 switches. The technician wants increased throughput for the uplinks between switches. The technician connects multiple redundant links between the switches. Which of the following should the technician configure?
Answer: C
Explanation:
When multiple redundant links exist between switches, Spanning Tree Protocol (STP) is required to prevent switching loops. STP blocks redundant paths but can allow aggregation if configured with protocols like LACP.
B). SVIs provide Layer 3 interfaces, not loop prevention.
C). Native VLAN defines the untagged VLAN but does not manage loops.
D). FHRP (VRRP, HSRP, GLBP) provides gateway redundancy, not switch uplink management.
References (CompTIA Network+ N10-009):
Domain: Network Infrastructure - STP, redundancy, loop prevention.
NEW QUESTION # 429
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