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検証するCNSP専門知識試験-試験の準備方法-最高のCNSP受験資格

JPNTestは2008年に設立されましたが、現在、ハイパスCNSPガイドトレントマテリアルの評判が高いため、この分野で主導的な地位にあります。 CNSP試験問題には、長年にわたって多くの同級生が続いていますが、これを超えることはありません。過去10年以来、成熟した完全なCNSP学習ガイドR＆Dシステム、顧客の情報安全システム、顧客サービスシステムを構築しています。有効なCNSP準備資料を購入したすべての受験者は、高品質のガイドトレント、情報の安全性、ゴールデンカスタマーサービスを利用できます。

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

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.

トピック 2

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 3

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 4

Open-Source Intelligence Gathering (OSINT): This section of the exam measures the skills of Security Analysts and discusses methods for collecting publicly available information on targets. It stresses the legal and ethical aspects of OSINT and its role in developing a thorough understanding of potential threats.

トピック 5

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 6

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 7

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 8

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 9

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.

>> CNSP専門知識 <<

CNSP受験資格、CNSP勉強時間

コンテンツの更新に加えて、CNSPトレーニング資料のシステムも更新されます。ご意見がありましたら、私たちの共通の目標は、ユーザーが満足する製品を作成することであると言えます。学習を開始した後、メールをチェックするための固定時間を設定できることを願っています。 CNSP実践ガイドまたはシステムの内容が更新された場合、更新された情報を電子メールアドレスに送信します。もちろん、製品の更新状況については、当社の電子メールをご覧ください。 CNSP模擬試験を使用してCNSP試験に合格するように協力できることを願っています。

The SecOps Group Certified Network Security Practitioner 認定 CNSP 試験問題 (Q45-Q50):

質問 # 45
What ports does an MSSQL server typically use?

A. 1433/TCP, 2433/UDP, and 3433/TCP
B. 1533/TCP, 1434/UDP, and 2434/TCP
C. 1433/TCP, 2433/UDP, and 1434/TCP
D. 1433/TCP, 1434/UDP, and 1434/TCP

正解：D

解説：
Microsoft SQL Server (MSSQL) relies on specific ports for its core services, as defined by Microsoft and registered with IANA:
1433/TCP: The default port for the SQL Server Database Engine. Clients connect here for querying databases (e.g., via ODBC or JDBC). It's a well-known port, making it a frequent target for attacks if exposed.
1434/UDP: Used by the SQL Server Browser Service, which listens for incoming requests and redirects clients to the correct port/instance (especially for named instances). It's critical for discovering dynamic ports when 1433 isn't used.
1434/TCP: Less commonly highlighted but used in some configurations, such as dedicated admin connections (DAC) or when the Browser Service responds over TCP for specific instances. While 1433/TCP is the primary engine port, 1434/TCP can be involved in multi-instance setups.
Technical Details:
Ports can be customized (e.g., via SQL Server Configuration Manager), but these are defaults.
Named instances often use dynamic ports (allocated from the ephemeral range), with the Browser Service (1434/UDP) guiding clients to them.
Firewalls must allow these ports for MSSQL to function externally, posing risks if not secured (e.g., brute-force attacks on 1433/TCP).
Security Implications: CNSP likely covers MSSQL port security, as vulnerabilities like SQL Slammer (2003) exploited 1434/UDP misconfigurations. Hardening includes restricting access, changing defaults, and monitoring traffic.
Why other options are incorrect:
A . 1433/TCP, 2433/UDP, 3433/TCP: 2433/UDP and 3433/TCP are not MSSQL standards; they're likely typos or unrelated ports.
C . 1433/TCP, 2433/UDP, 1434/TCP: 2433/UDP is incorrect; 1434/UDP is the Browser Service port.
D . 1533/TCP, 1434/UDP, 2434/TCP: 1533/TCP and 2434/TCP aren't associated with MSSQL; they deviate from documented defaults.
Real-World Context: Tools like netstat -an | find "1433" on Windows confirm MSSQL's port usage during audits.

質問 # 46
WannaCry, an attack, spread throughout the world in May 2017 using machines running on outdated Microsoft operating systems. What is WannaCry?

A. Ransomware
B. Malware

正解：A

解説：
WannaCry is a ransomware attack that erupted in May 2017, infecting over 200,000 systems across 150 countries. It exploited the EternalBlue vulnerability (MS17-010) in Microsoft Windows SMBv1, targeting unpatched systems (e.g., Windows XP, Server 2003). Developed by the NSA and leaked by the Shadow Brokers, EternalBlue allowed remote code execution.
Ransomware Mechanics:
Encryption: WannaCry used RSA-2048 and AES-128 to encrypt files, appending extensions like .wcry.
Ransom Demand: Displayed a message demanding $300-$600 in Bitcoin, leveraging a hardcoded wallet.
Worm Propagation: Self-replicated via SMB, scanning internal and external networks, unlike typical ransomware requiring user interaction (e.g., phishing).
Malware Context: While WannaCry is malware (malicious software), "ransomware" is the precise subcategory, distinguishing it from viruses, trojans, or spyware. Malware is a broad term encompassing any harmful code; ransomware specifically encrypts data for extortion. CNSP likely classifies WannaCry as ransomware to focus on its payload and mitigation (e.g., patching, backups).
Why other options are incorrect:
B . Malware: Correct but overly generic. WannaCry's defining trait is ransomware behavior, not just maliciousness. Specificity matters in security taxonomy for threat response (e.g., NIST IR 8019).
Real-World Context: WannaCry crippled NHS hospitals, highlighting patch management's criticality. A kill switch (a domain sinkhole) halted it, but variants persist.

質問 # 47
Which Kerberos ticket is required to generate a Silver Ticket?

A. Ticket-Granting Ticket
B. Session Ticket
C. Service Account Ticket
D. There is no specific ticket required for generating a Silver Ticket

正解：C

解説：
A Silver Ticket is a forged Kerberos Service Ticket (TGS - Ticket Granting Service) in Active Directory, granting access to a specific service (e.g., MSSQL, CIFS) without KDC interaction. Unlike a Golden Ticket (TGT forgery), it requires:
Service Account's NTLM Hash: The target service's account (e.g., MSSQLSvc) hash, not a ticket.
Forgery: Tools like Mimikatz craft the TGS (e.g., kerberos::golden /service:<spn> /user:<user> /ntlm:<hash>).
Kerberos Flow (RFC 4120):
TGT (Ticket-Granting Ticket): Obtained via AS (Authentication Service) with user creds.
TGS: Requested from TGS (Ticket Granting Service) using TGT for service access.
Silver Ticket Process:
No TGT needed; the attacker mimics the TGS step using the service account's stolen hash (e.g., from a compromised host).
C . Service Account Ticket: Misnomer-it's the hash of the service account (e.g., MSSQLSvc) that enables forgery, not a pre-existing ticket. CNSP's phrasing likely tests this nuance.
Security Implications: Silver Tickets are stealthier than Golden Tickets (service-specific, shorter-lived). CNSP likely stresses hash protection (e.g., LAPS) and Kerberos monitoring.
Why other options are incorrect:
A . Session Ticket: Not a Kerberos term; confuses session keys.
B . TGT: Used for Golden Tickets, not Silver.
D: Incorrect; the service account's hash (implied by "ticket") is essential.
Real-World Context: Silver Tickets exploited in APT29 attacks (2020 SolarWinds) for lateral movement.

質問 # 48
What is the response from a closed TCP port which is not behind a firewall?

A. A SYN and an ACK packet
B. A FIN and an ACK packet
C. A RST and an ACK packet
D. ICMP message showing Port Unreachable

正解：C

解説：
TCP uses a structured handshake, and its response to a connection attempt on a closed port follows a specific protocol when unobstructed by a firewall.
Why C is correct: A closed TCP port responds with a RST (Reset) and ACK (Acknowledgment) packet to terminate the connection attempt immediately. CNSP highlights this as a key scanning indicator.
Why other options are incorrect:
A: ICMP Port Unreachable is for UDP, not TCP.
B: FIN/ACK is for closing active connections, not rejecting new ones.
D: SYN/ACK indicates an open port during the TCP handshake.

質問 # 49
Which SMB (Server Message Block) network protocol version introduced support for encrypting SMB traffic?

A. SMBv2
B. SMBv3
C. SMBv1
D. None of the above

正解：B

解説：
The SMB protocol, used for file and printer sharing, has evolved across versions, with significant security enhancements in later iterations.
Why C is correct: SMBv3, introduced with Windows 8 and Server 2012, added native support for encrypting SMB traffic. This feature uses AES-CCM encryption to protect data in transit, addressing vulnerabilities in earlier versions. CNSP notes SMBv3's encryption as a critical security improvement.
Why other options are incorrect:
A . SMBv1: Lacks encryption support and is considered insecure, often disabled due to vulnerabilities like WannaCry exploitation.
B . SMBv2: Introduces performance improvements but does not support encryption natively.
D . None of the above: Incorrect, as SMBv3 is the version that introduced encryption.

質問 # 50
......

CNSP試験に合格すると、特定の分野で能力と知識が向上し、高い給料で良い仕事が見つかるため、テストCNSP証明書はますます重要になっています。 CNSP試験の教材を購入すると、CNSP試験に簡単に合格することができます。 CNSP試験の教材は99％〜100％の高い合格率を持っていることが証明されたデータがあります。CNSPトレーニング質問で勉強すると、確実にCNSP試験に合格します。

CNSP受験資格: https://www.jpntest.com/shiken/CNSP-mondaishu