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CNSP試験の準備方法｜最新のCNSP最新関連参考書試験｜素敵なCertified Network Security Practitioner最新問題

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現在、多くの外資系会社はThe SecOps GroupのCNSP試験認定を持つ職員に奨励を与えます。それに、CNSP試験に合格しない人々は大変なことであるでしょうか？我々のThe SecOps GroupのCNSP問題集は試験に準備する受験生にヘルプを与えます。もしあなたはThe SecOps GroupのCNSP試験に準備しているなら、弊社PassTestのCNSP問題集を使ってください。

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The SecOps Group CNSP 認定試験の出題範囲：

トピック
出題範囲

トピック 1

Linux and Windows Security Basics: This section of the exam measures skills of Security Analysts and compares foundational security practices across these two operating systems. It addresses file permissions, user account controls, and basic hardening techniques to reduce the attack surface.

トピック 2

Cryptography: This section of the exam measures the skills of Security Analysts and focuses on basic encryption and decryption methods used to protect data in transit and at rest. It includes an overview of algorithms, key management, and the role of cryptography in maintaining data confidentiality.

トピック 3

Active Directory Security Basics: This section of the exam measures the skills of Network Engineers and introduces the fundamental concepts of directory services, highlighting potential security risks and the measures needed to protect identity and access management systems in a Windows environment.

トピック 4

Social Engineering attacks: This section of the exam measures the skills of Security Analysts and addresses the human element of security breaches. It describes common tactics used to manipulate users, emphasizes awareness training, and highlights how social engineering can bypass technical safeguards.

トピック 5

TCP
IP (Protocols and Networking Basics): This section of the exam measures the skills of Security Analysts and covers the fundamental principles of TCP
IP, explaining how data moves through different layers of the network. It emphasizes the roles of protocols in enabling communication between devices and sets the foundation for understanding more advanced topics.

トピック 6

This section of the exam measures skills of Network Engineers and explores the utility of widely used software for scanning, monitoring, and troubleshooting networks. It clarifies how these tools help in detecting intrusions and verifying security configurations.

トピック 7

Network Architectures, Mapping, and Target Identification: This section of the exam measures the skills of Network Engineers and reviews different network designs, illustrating how to diagram and identify potential targets in a security context. It stresses the importance of accurate network mapping for efficient troubleshooting and defense.

トピック 8

Database Security Basics: This section of the exam measures the skills of Network Engineers and covers how databases can be targeted for unauthorized access. It explains the importance of strong authentication, encryption, and regular auditing to ensure that sensitive data remains protected.

トピック 9

Testing Network Services

トピック 10

Basic Malware Analysis: This section of the exam measures the skills of Network Engineers and offers an introduction to identifying malicious software. It covers simple analysis methods for recognizing malware behavior and the importance of containment strategies in preventing widespread infection.

トピック 11

Network Scanning & Fingerprinting: This section of the exam measures the skills of Security Analysts and covers techniques for probing and analyzing network hosts to gather details about open ports, operating systems, and potential vulnerabilities. It emphasizes ethical and legal considerations when performing scans.

トピック 12

Password Storage: This section of the exam measures the skills of Network Engineers and addresses safe handling of user credentials. It explains how hashing, salting, and secure storage methods can mitigate risks associated with password disclosure or theft.

トピック 13

Network Discovery Protocols: This section of the exam measures the skills of Security Analysts and examines how protocols like ARP, ICMP, and SNMP enable the detection and mapping of network devices. It underlines their importance in security assessments and network monitoring.

トピック 14

Common vulnerabilities affecting Windows Services: This section of the exam measures the skills of Network Engineers and focuses on frequently encountered weaknesses in core Windows components. It underscores the need to patch, configure, and monitor services to prevent privilege escalation and unauthorized use.

トピック 15

Testing Web Servers and Frameworks: This section of the exam measures skills of Security Analysts and examines how to assess the security of web technologies. It looks at configuration issues, known vulnerabilities, and the impact of unpatched frameworks on the overall security posture.

トピック 16

TLS Security Basics: This section of the exam measures the skills of Security Analysts and outlines the process of securing network communication through encryption. It highlights how TLS ensures data integrity and confidentiality, emphasizing certificate management and secure configurations.

トピック 17

Network Security Tools and Frameworks (such as Nmap, Wireshark, etc)

トピック 18

This section of the exam measures the skills of Network Engineers and explains how to verify the security and performance of various services running on a network. It focuses on identifying weaknesses in configurations and protocols that could lead to unauthorized access or data leaks.

The SecOps Group Certified Network Security Practitioner 認定 CNSP 試験問題 (Q54-Q59):

質問 # 54
Which SMB (Server Message Block) network protocol versions are vulnerable to the EternalBlue (MS17-010) Windows exploit?

A. SMBv1 only
B. SMBv3 only
C. Both SMBv1 and SMBv2
D. SMBv2 only

正解：A

解説：
EternalBlue (MS17-010) is an exploit targeting a buffer overflow in Microsoft's SMB (Server Message Block) implementation, leaked by the Shadow Brokers in 2017. SMB enables file/printer sharing:
SMBv1 (1980s): Legacy, used in Windows NT/XP.
SMBv2 (2006, Vista): Enhanced performance/security.
SMBv3 (2012, Windows 8): Adds encryption, multichannel.
Vulnerability:
EternalBlue exploits a flaw in SMBv1's SRVNET driver (srv.sys), allowing remote code execution via crafted packets. Microsoft patched it in March 2017 (MS17-010).
Affected OS: Windows XP to Server 2016 (pre-patch), if SMBv1 enabled.
Proof: WannaCry/NotPetya used it, targeting port 445/TCP.
SMBv1 Only: The bug resides in SMBv1's packet handling (e.g., TRANS2 requests). SMBv2/v3 rewrote this code, immune to the specific overflow.
Microsoft: Post-patch, SMBv1 is disabled by default (Windows 10 1709+).
Security Implications: CNSP likely stresses disabling SMBv1 (e.g., via Group Policy) and patching, as EternalBlue remains a threat in legacy environments.
Why other options are incorrect:
B, C: SMBv2/v3 aren't vulnerable; the flaw is SMBv1-specific.
D: SMBv2 isn't affected, only SMBv1.
Real-World Context: WannaCry's 2017 rampage hit unpatched SMBv1 systems (e.g., NHS), costing billions.

質問 # 55
What is the response from a closed UDP port which is not behind a firewall?

A. A RST packet
B. None of the above
C. No response
D. ICMP message showing Destination Unreachable

正解：D

解説：
UDP is a connectionless protocol, and its behavior when a packet reaches a port depends on whether the port is open or closed. Without a firewall altering the response, the standard protocol applies.
Why A is correct: When a UDP packet is sent to a closed port, the host typically responds with an ICMP Type 3 (Destination Unreachable), Code 3 (Port Unreachable) message, indicating no service is listening. CNSP notes this as a key indicator in port scanning.
Why other options are incorrect:
B: RST packets are TCP-specific, not used in UDP.
C: No response occurs for open UDP ports unless an application replies, not closed ports.
D: A is correct, so "none of the above" is invalid.

質問 # 56
Which of the following attacks are associated with an ICMP protocol?

A. All of the following
B. Smurf attack
C. Ping of death
D. ICMP flooding

正解：A

解説：
ICMP (Internet Control Message Protocol), per RFC 792, handles diagnostics (e.g., ping) and errors in IP networks. It's exploitable in:
A . Ping of Death:
Method: Sends oversized ICMP Echo Request packets (>65,535 bytes) via fragmentation. Reassembly overflows buffers, crashing older systems (e.g., Windows 95).
Fix: Modern OSes cap packet size (e.g., ping -s 65500).
B . Smurf Attack:
Method: Spoofs ICMP Echo Requests to a network's broadcast address (e.g., 192.168.255.255). All hosts reply, flooding the victim.
Amplification: 100 hosts = 100x traffic.
C . ICMP Flooding:
Method: Overwhelms a target with ICMP Echo Requests (e.g., ping -f), consuming bandwidth/CPU.
Variant: BlackNurse attack targets firewalls.
Technical Details:
ICMP Type 8 (Echo Request), Type 0 (Echo Reply) are key.
Mitigation: Rate-limit ICMP, disable broadcasts (e.g., no ip directed-broadcast).
Security Implications: ICMP attacks are DoS vectors. CNSP likely teaches filtering (e.g., iptables -p icmp -j DROP) balanced with diagnostics need.
Why other options are incorrect:
A, B, C individually: All are ICMP-based; D is comprehensive.
Real-World Context: Smurf attacks peaked in the 1990s; modern routers block them by default.

質問 # 57
The Management Information Base (MIB) is a collection of object groups that is managed by which service?

A. SMTP
B. TACACS
C. SNMP
D. NTP

正解：C

解説：
The Management Information Base (MIB) is a structured database defining manageable objects (e.g., CPU usage, interface status) in a network device. It's part of the SNMP (Simple Network Management Protocol) framework, per RFC 1157, used for monitoring and managing network devices (e.g., routers, switches).
SNMP Mechanics:
MIB Structure: Hierarchical, with Object Identifiers (OIDs) like 1.3.6.1.2.1.1.1.0 (sysDescr).
Ports: UDP 161 (agent), 162 (traps).
Operation: Agents expose MIB data; managers (e.g., Nagios) query it via GET/SET commands.
MIB files (e.g., IF-MIB, HOST-RESOURCES-MIB) are vendor-specific or standardized, parsed by SNMP tools (e.g., snmpwalk). CNSP likely covers SNMP for network monitoring and securing it against enumeration (e.g., weak community strings like "public").
Why other options are incorrect:
A . SMTP (Simple Mail Transfer Protocol): Email delivery (TCP 25), unrelated to MIB or device management.
C . NTP (Network Time Protocol): Time synchronization (UDP 123), not MIB-related.
D . TACACS (Terminal Access Controller Access-Control System): Authentication/authorization (TCP 49), not MIB management.
Real-World Context: SNMP misconfiguration led to the 2018 Cisco switch exploits via exposed MIB data.

質問 # 58
What ports can be queried to perform a DNS zone transfer?

A. None of the above
B. 53/UDP
C. 53/TCP
D. Both 1 and 2

正解：C

解説：
A DNS zone transfer involves replicating the DNS zone data (e.g., all records for a domain) from a primary to a secondary DNS server, requiring a reliable transport mechanism.
Why A is correct: DNS zone transfers use TCP port 53 because TCP ensures reliable, ordered delivery of data, which is critical for transferring large zone files. CNSP notes that TCP is the standard protocol for zone transfers (e.g., AXFR requests), as specified in RFC 5936.
Why other options are incorrect:
B . 53/UDP: UDP port 53 is used for standard DNS queries and responses due to its speed and lower overhead, but it is not suitable for zone transfers, which require reliability over speed.
C . Both 1 and 2: This is incorrect because zone transfers are exclusively TCP-based, not UDP-based.
D . None of the above: Incorrect, as 53/TCP is the correct port for DNS zone transfers.

質問 # 59
......

PassTestは他の同様のプラットフォームとは異なり、CNSP実際のテストはThe SecOps Group購入前に無料で試用できるため、サンプルの質問とソフトウェアの使用方法を理解できます。また、自分のニーズに基づいて決定を下すことができ、後悔することはありません。そして、CNSP準備資料を改訂するために、専門家のグループを編成しました。 CNSPガイド急流のシンプルで理解しやすい言語は、学生であれオフィスワーカーであれ、学習者が困難を学ぶことから解放します。そして、CNSPのCertified Network Security Practitioner試験問題の合格率は99％〜100％です。