Mastering Cisco CCNA CyberOps Associate (Version 3.0): Complete Guide to All Modules & Final Exam Success 2025/2026
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Course
CCNA - Cisco Certified Network Associate
Institution
CCNA - Cisco Certified Network Associate
Mastering Cisco CCNA CyberOps
Associate (Version 3.0): Complete Guide
to All Modules & Final Exam Success
2025/2026
What is the primary purpose of a SIEM (Security Information and Event Management) system in a
network environment?
To collect, analyze, and respond to security-related d...
Mastering Cisco CCNA CyberOps
Associate (Version 3.0): Complete Guide
to All Modules & Final Exam Success
2025/2026
What is the primary purpose of a SIEM (Security Information and Event Management) system in a
network environment?
To collect, analyze, and respond to security-related data from various sources in real time.
Which protocol is primarily used for securing email communications by providing end-to-end
encryption?
S/MIME (Secure/Multipurpose Internet Mail Extensions).
What type of attack involves a malicious user intercepting and altering the communication between two
legitimate parties?
Man-in-the-Middle (MitM) attack.
Which of the following is an example of a Layer 7 attack in the OSI model?
Application layer DDoS attack (such as HTTP flood).
What is the main purpose of using firewalls in network security?
To control and monitor incoming and outgoing network traffic based on predetermined security
rules.
What is the primary role of an IPS (Intrusion Prevention System)?
To actively monitor network traffic for signs of malicious activity and block identified threats.
Which type of attack sends large volumes of traffic to overwhelm the resources of a target server?
1
, Distributed Denial of Service (DDoS) attack.
What does the term "zero-day vulnerability" refer to?
A security flaw that is unknown to the software vendor and is exploited by attackers before a
patch is released.
Which of the following is a characteristic of a botnet attack?
A network of infected devices controlled remotely by a cybercriminal.
What does the term "Phishing" refer to in cybersecurity?
A type of social engineering attack where attackers impersonate legitimate entities to steal
sensitive information.
Which device is commonly used to segment networks and enforce security policies in enterprise
environments?
Next-generation firewall (NGFW).
What is the purpose of the OSI model in network communication?
To standardize the functions of communication systems into seven distinct layers for
interoperability.
Which of the following protocols is commonly used for securing remote connections to a network?
Secure Shell (SSH).
What is the key difference between a vulnerability scan and a penetration test?
A vulnerability scan identifies potential weaknesses, while a penetration test attempts to exploit
those weaknesses.
What is the purpose of DNSSEC (Domain Name System Security Extensions)?
To protect against DNS spoofing attacks by providing cryptographic signatures to DNS data.
2
,Which of the following is a tool used for network traffic analysis and monitoring in cybersecurity?
Wireshark.
What is the function of the ARP (Address Resolution Protocol) in network communication?
It maps a network address (IP address) to a MAC address.
What is an example of a cryptographic hashing algorithm used in digital signatures and integrity checks?
SHA-256 (Secure Hash Algorithm).
Which technique is used to detect anomalies in network traffic by comparing real-time data with a
baseline of normal behavior?
Behavior-based intrusion detection.
Which network security measure involves requiring users to prove their identity before accessing
resources?
Authentication.
What type of malware disguises itself as a legitimate program but actually performs harmful actions?
Trojan horse.
What does the principle of "least privilege" mean in the context of network security?
Users and systems are granted the minimum level of access necessary to perform their tasks.
Which term refers to an encrypted connection between two devices over a network?
VPN (Virtual Private Network).
What is the main function of the HTTP Secure (HTTPS) protocol?
To encrypt HTTP traffic and provide a secure communication channel over the internet.
3
, What is the purpose of a DMZ (Demilitarized Zone) in network security?
To provide a buffer zone between the internal network and external networks, like the internet.
What is the purpose of a security patch?
To fix known vulnerabilities in software and improve system security.
Which of the following is an example of a physical layer security measure?
Shielding cables to prevent eavesdropping.
What is the purpose of multi-factor authentication (MFA) in cybersecurity?
To enhance security by requiring multiple forms of verification before granting access.
What is the role of a SOC (Security Operations Center)?
To monitor, detect, and respond to security incidents in real time.
Which technique is used to hide sensitive data within other non-sensitive data to avoid detection?
Steganography.
What is the purpose of a digital certificate in public key infrastructure (PKI)?
To verify the identity of an entity and facilitate secure communication.
What is a vulnerability management process used for in cybersecurity?
To identify, assess, prioritize, and remediate vulnerabilities in a network or system.
Which type of attack targets the availability of a system by overwhelming it with traffic or requests?
Denial of Service (DoS) attack.
4
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