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Cisco 100-160 시험요강:

주제	소개
주제 1	Incident Handling: This section of the exam measures the skills of an Incident Responder and centers on recognizing security incidents, responding appropriately, and containing threats—forming the essential foundation of incident response procedures.
주제 2	Endpoint Security Concepts:This section of the exam measures the skills of an Endpoint Security Specialist and includes securing individual devices, understanding protections such as antivirus, patching, and access control at the endpoint level, essential for maintaining device integrity.
주제 3	Basic Network Security Concepts: This section of the exam measures the skills of a Network Defender and focuses on understanding network-level protections, including firewalls, VPNs, and intrusion detection prevention systems, providing insight into how threats are mitigated within network environments.
주제 4	Essential Security Principles: This section of the exam measures the skills of a Cybersecurity Technician and covers foundational cybersecurity concepts such as the CIA triad (confidentiality, integrity, availability), along with basic threat types and vulnerabilities, laying the conceptual groundwork for understanding how to protect information systems.
주제 5	Vulnerability Assessment and Risk Management: This section of the exam measures the skills of a Risk Management Analyst and entails identifying and assessing vulnerabilities, understanding risk priorities, and applying mitigation strategies that help manage threats proactively within an organization's systems

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최신 Cisco CCST 100-160 무료샘플문제 (Q50-Q55):

질문 # 50
What does hashing provide for data communication?

A. Origin authentication
B. Data non-repudiation
C. Data integrity
D. Data encryption

정답：C

설명：
Hashing is a cryptographic technique that converts input data into a fixed-length output called a hash value or message digest.
Cryptographic hash functions are commonly used to verify that information has not been modified during storage or transmission.
For example, a sender calculates a hash value for a file before transferring it. The receiver independently calculates the hash of the received file and compares the two values.
If the hash values match, this provides evidence that the data has not changed, assuming a secure hash function and a trustworthy reference hash.
Key characteristics of cryptographic hashing:
* Deterministic: The same input produces the same hash output.
* Fixed-length output: The hash has a defined size regardless of input length.
* One-way operation: Secure hash functions are designed to make recovering the original input computationally infeasible.
* Collision resistance: It should be computationally infeasible to find two different inputs producing the same hash.
Why the other options are incorrect:
* A. Data non-repudiation: Typically requires digital signatures and supporting identity and key- management mechanisms. Hashing alone does not provide non-repudiation.
* B. Origin authentication: Requires an authentication mechanism such as a message authentication code (MAC) or digital signature. A plain hash cannot establish the sender ' s identity.
* C. Data encryption: Encryption protects confidentiality and can be reversed with the appropriate decryption key. Hashing is not encryption.
* D. Data integrity: Correct because cryptographic hashes can detect changes to data when compared against a trusted reference.
Important distinction: Hashing alone does not protect against an attacker replacing both the data and its hash.
Authenticated hashes, such as HMAC, or digital signatures address this limitation.
References:
Cisco CCST Cybersecurity - Essential Security Principles: Cryptography, Hashing, and Data Integrity.
NIST FIPS 180-4 - Secure Hash Standard (SHS).
NIST FIPS 180-4 - Secure Hash Standard

질문 # 51
Which of the following best describes the main purpose of malware removal?

A. To secure a system against potential malware attacks
B. To detect and remove malware that is already present on a system
C. To prevent malware from being installed on a system
D. To disinfect network devices from malware infections

정답：B

설명：
Malware removal refers to the process of identifying and eliminating malicious software that has already infected a system. This is essential to prevent further harm and restore the system's security.

질문 # 52
Which encryption type is commonly used to secure WiFi networks?

A. Data Encryption Standard (DES)
B. Advanced Encryption Algorithm (AES)
C. Triple Data Encryption Algorithm (Triple DES)
D. RSA (Rivest-Shamir-Adleman)

정답：B

설명：
The CCST Cybersecurity Study Guide specifies that AES (Advanced Encryption Standard) is the encryption method used in modern WiFi security protocols like WPA2 and WPA3.
" WPA2 and WPA3 use the Advanced Encryption Standard (AES) for securing wireless traffic. AES provides strong symmetric encryption, replacing outdated methods like WEP and TKIP. " (CCST Cybersecurity, Basic Network Security Concepts, Wireless Security section, Cisco Networking Academy)
* A (DES) is outdated and insecure.
* B (Triple DES) is older and slower, rarely used in WiFi.
* C is correct: AES is the industry standard for WiFi security.
* D (RSA) is asymmetric encryption used in key exchange, not bulk WiFi encryption.

질문 # 53
What is the primary purpose of a VPN (Virtual Private Network)?

A. To encrypt email communications
B. To secure wireless network connections
C. To establish a secure remote connection over a public network
D. To protect against malware attacks

정답：C

설명：
A VPN is designed to provide secure, encrypted communication over a public network such as the internet. Its primary purpose is to establish a secure and private connection between two endpoints, allowing remote users to access resources on a private network as if they were directly connected to it. This helps protect sensitive data and communications from interception by unauthorized individuals.

질문 # 54
You need to filter the websites that are available to employees on the company network.
Which type of device should you deploy?

A. IPS
B. Proxy server
C. Honeypot
D. IDS

정답：B

설명：
The correct answer is B. Proxy server.
A proxy server is an intermediary system that processes requests between client devices and external servers.
In corporate environments, proxy servers are commonly used to manage and restrict employee access to websites.
A web proxy can provide several security functions:
* URL filtering: Restricts access to specified websites or domains.
* Content filtering: Blocks websites based on categories such as gambling, malware, or phishing.
* Access control: Applies browsing policies to users or departments.
* Logging and monitoring: Records web requests for auditing and security investigations.
* Malware filtering: Some secure web proxies can inspect downloads for malicious content.
For example, a company might configure a proxy server to permit access to business-related websites while preventing employees from accessing known phishing sites.
Why the other options are incorrect:
* A. IPS: An Intrusion Prevention System monitors network traffic and blocks detected threats. Website filtering is not its primary purpose.
* B. Proxy server: Correct. It can control employee access to websites through filtering policies.
* C. IDS: An Intrusion Detection System monitors network traffic and generates alerts but typically does not block access.
* D. Honeypot: A decoy system designed to attract and observe malicious activity.
References:
Cisco CCST Cybersecurity - Basic Network Security Concepts: Network Security Devices and Proxy Servers.
NIST SP 800-41 Rev. 1 - Guidelines on Firewalls and Firewall Policy.
NIST SP 800-41 Rev. 1

질문 # 55
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