1What is the CIA triad?
Confidentiality, Integrity, Availability
2What does the principle of least privilege entail?
Users should have the minimum level of access necessary to perform their job functions.
3Name three types of malware
Virus, Worm, Trojan.
4What is a firewall?What is a DDoS attack?
A network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
5Define social engineering
The manipulation of individuals to gain confidential information by exploiting human psychology rather than technical hacking techniques.
6What is multi-factor authentication?
A security system that requires more than one method of verification to gain access to a resource.
7What are the four phases of incident response?
Preparation, Detection and Analysis, Containment, Eradication and Recovery, Post-Incident Activity.
8What is a DDoS attack?
Distributed Denial of Service; an attack that attempts to make a machine or network resource unavailable by overwhelming it with traffic.
9What does encryption do?
It converts data into a coded format to prevent unauthorized access.
10What is a digital certificate?
An electronic document used to prove the ownership of a public key, issued by a Certificate Authority (CA).
11Explain the term “phishing.”
A method of trying to gather personal information using deceptive emails and websites.
12What is a VPN?
Virtual Private Network; a service that creates a secure connection over the Internet.
13What is the difference between symmetric and asymmetric encryption?
Symmetric uses the same key for encryption and decryption, while asymmetric uses a pair of keys (public and private).
14What is a security policy?
A formal document that outlines an organization's security measures and expectations.
15What is a vulnerability scan?
An automated process used to identify vulnerabilities in systems and applications
16What is risk management?
The process of identifying, assessing, and prioritizing risks followed by coordinated efforts to minimize, monitor, and control the probability or impact of unforeseen events.
17Define a brute-force attack.
An attack method that involves trying all possible combinations of passwords until the correct one is found.
18What is a security baseline?
A minimum level of security that must be implemented to protect an organization's information systems.
19What is a man-in-the-middle (MitM) attack?
An attack where the attacker secretly relays and possibly alters the communication between two parties who believe they are directly communicating with each other.
20What is two-factor authentication (2FA)?
A security process that requires two different forms of identification from the user to access a system.
21What is an intrusion detection system (IDS)?
A device or software application that monitors network or system activities for malicious activities or policy violations.
22Define “patch management.”
The process of managing updates for software applications and technologies to fix vulnerabilities and improve security.
23What is the purpose of a security audit?
To assess the effectiveness of an organization’s security policies and controls against established standards.
24What does the term “zero-day vulnerability” refer to?
A security flaw that is unknown to the vendor and has no patch available at the time it is discovered.
25What is the difference between authentication and authorization?
Authentication verifies who you are, while authorization determines what you are allowed to do.
26What is a secure socket layer (SSL)?
A standard security technology for establishing an encrypted link between a server and a client.
27What is a public key infrastructure (PKI)?
A framework for managing digital certificates and public-key encryption.
28What is a honeypot?
A security resource whose value lies in being probed, attacked, or compromised to gather information about threats.
29What is data loss prevention (DLP)?
Strategies and tools used to prevent sensitive data from being lost, misused, or accessed by unauthorized users.
30Define “malware.”
Malicious software designed to harm, exploit, or otherwise compromise a computer system or network.
31What is an access control list (ACL)?
A list of permissions attached to an object that specifies which users or system processes can access that object.
32What is the difference between a virus and a worm?
A virus attaches itself to a legitimate program and requires user action to spread, while a worm is a standalone malware that replicates itself to spread to other systems automatically.
33What is a security token?
A physical or digital device that is used to gain access to a network or system, often as part of a two-factor authentication system.
34What is a contingency plan?
A plan for how to respond to emergencies or unexpected events to ensure business continuity.
35What is network segmentation?
Dividing a computer network into smaller, manageable segments to improve performance and security.
36Define “malicious insider.”
An employee or contractor who uses their access to an organization’s resources to harm or exploit the organization.
37What is the purpose of a DMZ (Demilitarized Zone)?
A physical or logical subnetwork that contains and exposes an organization's external-facing services to an untrusted network, typically the Internet.
38What is data encryption at rest?
The encryption of data stored on a disk or storage device to protect it from unauthorized access.
39What is a rootkit?
A type of malware that enables unauthorized access to a computer while hiding its presence.
40Define “security information and event management” (SIEM).
A solution that aggregates and analyzes security data from across an organization’s technology infrastructure.
41What is a security breach?
An incident that results in unauthorized access to sensitive data or systems.
42What does “encryption in transit” mean?
The encryption of data as it travels over a network to prevent interception by unauthorized parties.
43What is a threat vector?
The method or pathway used by a threat actor to gain access to a target system.
44What is a password policy?
A set of rules governing the creation, use, and management of passwords to enhance security.
45Define “ransomware.”
A type of malware that encrypts a victim's files and demands a ransom payment to restore access.
46What is a security patch?
A software update designed to fix vulnerabilities, bugs, or security flaws in software applications or operating systems.
47What is an exploit?
A piece of software, a chunk of data, or a sequence of commands that takes advantage of a bug or vulnerability.
48What is a keylogger?
A type of surveillance software that records keystrokes made by a user to capture sensitive information like passwords.
49What is an incident response plan?
A documented strategy outlining the processes to follow when responding to a security breach or incident.
50What is the purpose of a vulnerability assessment?
To identify, quantify, and prioritize vulnerabilities in a system.
51Define “tokenization.”
The process of replacing sensitive data elements with non-sensitive equivalents, called tokens, that retain essential information without compromising security.
52What is a security architecture?
The design artifacts that describe how security controls are positioned and how they relate to the overall system architecture.