Podcast
Questions and Answers
What is a critical challenge faced by many network administrators today?
What is a critical challenge faced by many network administrators today?
- Falling for mainstream media's coverage of security breaches
- Understanding the most common threats to network systems (correct)
- The widespread use of industry certifications
- Excessive training opportunities in cyber security
Which of the following aspects is emphasized as needing further exploration before securing a network?
Which of the following aspects is emphasized as needing further exploration before securing a network?
- Basic concepts of networking (correct)
- The role of government in cyber security
- The legal issues surrounding network management
- Industry certification programs available
What approach is suggested for ensuring network security?
What approach is suggested for ensuring network security?
- Avoiding all forms of training and certification
- Focusing only on high-profile security incidents
- Employing methodical steps and understanding threats (correct)
- Following random security trends without a systematic plan
What type of educational opportunities are now more readily available in the field of network security?
What type of educational opportunities are now more readily available in the field of network security?
Which of the following is NOT mentioned as a potential source for training in network security?
Which of the following is NOT mentioned as a potential source for training in network security?
What is a prevalent misconception regarding media coverage of network security breaches?
What is a prevalent misconception regarding media coverage of network security breaches?
What is a significant reason many computer professionals feel unprepared for network security challenges?
What is a significant reason many computer professionals feel unprepared for network security challenges?
Which certification is NOT mentioned in relation to network security training?
Which certification is NOT mentioned in relation to network security training?
What does the 'ttl' in a ping command represent?
What does the 'ttl' in a ping command represent?
Which command is used to see the time it takes for a packet to travel to its destination and the intermediate hops?
Which command is used to see the time it takes for a packet to travel to its destination and the intermediate hops?
What is the primary function of the netstat command?
What is the primary function of the netstat command?
Which layer of the OSI model is responsible for end-to-end communication control?
Which layer of the OSI model is responsible for end-to-end communication control?
What protocol does the Application Layer of the OSI model typically use?
What protocol does the Application Layer of the OSI model typically use?
Which of the following describes the main purpose of the OSI model?
Which of the following describes the main purpose of the OSI model?
Why is it important to understand the OSI model from a security perspective?
Why is it important to understand the OSI model from a security perspective?
What type of threat to network security can be caused by human behavior?
What type of threat to network security can be caused by human behavior?
What command would you use to refine your ping request for specific options?
What command would you use to refine your ping request for specific options?
What does the data link layer primarily describe?
What does the data link layer primarily describe?
In the context of network security, what are key points of attack?
In the context of network security, what are key points of attack?
Which command is equivalent to tracert in Linux?
Which command is equivalent to tracert in Linux?
What is a common misconception about viewing numerous connections in netstat?
What is a common misconception about viewing numerous connections in netstat?
Which layer of the OSI model is known for handling network routing?
Which layer of the OSI model is known for handling network routing?
What is primarily responsible for connecting multiple machines in a network?
What is primarily responsible for connecting multiple machines in a network?
Which component serves as a barrier between a network and the Internet?
Which component serves as a barrier between a network and the Internet?
What is the maximum size of a data packet in bytes?
What is the maximum size of a data packet in bytes?
Which IP address is not considered valid?
Which IP address is not considered valid?
What does the TCP header in a packet primarily contain?
What does the TCP header in a packet primarily contain?
How many possible IP version 4 addresses exist approximately?
How many possible IP version 4 addresses exist approximately?
In what range does an IP address of Class A fall?
In what range does an IP address of Class A fall?
What is a key purpose of understanding basic networking before studying network security?
What is a key purpose of understanding basic networking before studying network security?
Which type of IP address is commonly assigned by Internet Service Providers (ISPs)?
Which type of IP address is commonly assigned by Internet Service Providers (ISPs)?
What is the first step in sending data over a network?
What is the first step in sending data over a network?
What part of a data packet helps identify where it came from?
What part of a data packet helps identify where it came from?
What is one of the primary vulnerabilities of a communication avenue in a network?
What is one of the primary vulnerabilities of a communication avenue in a network?
Which of the following is NOT a component of network architecture?
Which of the following is NOT a component of network architecture?
What is the main function of a router in a network?
What is the main function of a router in a network?
What is the main objective of intrusion attacks?
What is the main objective of intrusion attacks?
Which method relies on human interaction rather than technology for breaching security?
Which method relies on human interaction rather than technology for breaching security?
What is war-driving related to?
What is war-driving related to?
What characterizes a denial-of-service attack?
What characterizes a denial-of-service attack?
Why are computer viruses considered a common threat?
Why are computer viruses considered a common threat?
What common mistake contributes to the continuation of virus outbreaks?
What common mistake contributes to the continuation of virus outbreaks?
What do hackers typically refer to intrusion attacks as?
What do hackers typically refer to intrusion attacks as?
What is a common characteristic of denial-of-service attacks?
What is a common characteristic of denial-of-service attacks?
What is a risk associated with the growing popularity of wireless networks?
What is a risk associated with the growing popularity of wireless networks?
What factor influences the likelihood of a particular attack on a system?
What factor influences the likelihood of a particular attack on a system?
Which of the following techniques allows an intruder to gather information about a target organization?
Which of the following techniques allows an intruder to gather information about a target organization?
What is an example of a method that does not rely on exploiting software flaws?
What is an example of a method that does not rely on exploiting software flaws?
What is a characteristic of flooding attacks, typical in denial-of-service attacks?
What is a characteristic of flooding attacks, typical in denial-of-service attacks?
What is the primary purpose of a DNS protocol?
What is the primary purpose of a DNS protocol?
Which of the following ranges represents private IP addresses?
Which of the following ranges represents private IP addresses?
What differentiates IPv6 from IPv4 regarding the address format?
What differentiates IPv6 from IPv4 regarding the address format?
What is a characteristic of the link/machine-local IPv6 addresses?
What is a characteristic of the link/machine-local IPv6 addresses?
How does the Address Resolution Protocol (ARP) function in networking?
How does the Address Resolution Protocol (ARP) function in networking?
When an ISP runs out of public IP addresses, what do they typically do?
When an ISP runs out of public IP addresses, what do they typically do?
What does DHCP stand for and what is its purpose?
What does DHCP stand for and what is its purpose?
What typically happens when a device cannot communicate with a DHCP server?
What typically happens when a device cannot communicate with a DHCP server?
Which of the following best describes the format of an IPv6 address?
Which of the following best describes the format of an IPv6 address?
What is the role of the Managed Address Configuration Flag (M flag) in DHCPv6?
What is the role of the Managed Address Configuration Flag (M flag) in DHCPv6?
Which protocol is typically used to send outgoing email messages?
Which protocol is typically used to send outgoing email messages?
What is indicated by the error code 404 received from a web server?
What is indicated by the error code 404 received from a web server?
Which of the following describes a site/network-local IPv6 address?
Which of the following describes a site/network-local IPv6 address?
What is an example of an IP address format used in IPv4?
What is an example of an IP address format used in IPv4?
What is the primary function of the ARP protocol?
What is the primary function of the ARP protocol?
Which of the following protocols is used for securely transferring files?
Which of the following protocols is used for securely transferring files?
What is the port number used by the POP3 protocol?
What is the port number used by the POP3 protocol?
Which protocol is specifically designed to send emails?
Which protocol is specifically designed to send emails?
What purpose does the DNS protocol serve?
What purpose does the DNS protocol serve?
Which command is used to display the current network configuration in Windows?
Which command is used to display the current network configuration in Windows?
What is the function of the ping command?
What is the function of the ping command?
Which of the following ports is associated with the HTTP protocol?
Which of the following ports is associated with the HTTP protocol?
Which protocol operates on port 443?
Which protocol operates on port 443?
What is the purpose of a protocol in networking?
What is the purpose of a protocol in networking?
Which statement accurately describes a network port?
Which statement accurately describes a network port?
What information does the command ipconfig/all provide?
What information does the command ipconfig/all provide?
Which protocol is known to provide command access remotely to systems?
Which protocol is known to provide command access remotely to systems?
NetBIOS is primarily used for which purpose?
NetBIOS is primarily used for which purpose?
What is the main reason hackers are attracted to certain systems?
What is the main reason hackers are attracted to certain systems?
What percentage of organizations reported being affected by cyber crime in a 2016 survey?
What percentage of organizations reported being affected by cyber crime in a 2016 survey?
What is a primary concern for administrators when monitoring employees' internet usage?
What is a primary concern for administrators when monitoring employees' internet usage?
What is the best approach to limiting potential misuse of computer systems in organizations?
What is the best approach to limiting potential misuse of computer systems in organizations?
Which factor is NOT considered when assessing the threat level for an organization?
Which factor is NOT considered when assessing the threat level for an organization?
Which type of data requires the highest level of security?
Which type of data requires the highest level of security?
In the context of system security evaluation, what does a high score signify?
In the context of system security evaluation, what does a high score signify?
What factor would increase the security needs of a system?
What factor would increase the security needs of a system?
Which aspect does not contribute to a system's attractiveness to hackers?
Which aspect does not contribute to a system's attractiveness to hackers?
What percentage of respondents had a fully operational incident response plan?
What percentage of respondents had a fully operational incident response plan?
What is a significant risk factor for systems with remote connections?
What is a significant risk factor for systems with remote connections?
What does the attractiveness score for hackers reflect?
What does the attractiveness score for hackers reflect?
Which characteristic defines a very low risk system?
Which characteristic defines a very low risk system?
When is it permissible for employees to use work computers for personal tasks?
When is it permissible for employees to use work computers for personal tasks?
What is the primary intention of white hat hackers when they find vulnerabilities?
What is the primary intention of white hat hackers when they find vulnerabilities?
Which term is commonly used to describe an inexperienced hacker?
Which term is commonly used to describe an inexperienced hacker?
What differentiates gray hat hackers from black hat hackers?
What differentiates gray hat hackers from black hat hackers?
What is a primary role of ethical hackers in the field of security?
What is a primary role of ethical hackers in the field of security?
Which statement best describes a cracker's intent?
Which statement best describes a cracker's intent?
What is the main similarity between a black hat hacker and a cracker?
What is the main similarity between a black hat hacker and a cracker?
Why is it important to conduct a criminal background check on penetration testers?
Why is it important to conduct a criminal background check on penetration testers?
Which of the following terms was previously used but is now less common for ethical hackers?
Which of the following terms was previously used but is now less common for ethical hackers?
What mindset do hackers generally have towards understanding systems?
What mindset do hackers generally have towards understanding systems?
What is commonly accepted about all hackers, in terms of legality?
What is commonly accepted about all hackers, in terms of legality?
What is a common belief held by decision-makers with a lax approach to computer security?
What is a common belief held by decision-makers with a lax approach to computer security?
What is one potential misconception about hiring a penetration tester?
What is one potential misconception about hiring a penetration tester?
What consequence might organizations face if they wait until after an incident to address security issues?
What consequence might organizations face if they wait until after an incident to address security issues?
What type of hacker is most commonly depicted in the media?
What type of hacker is most commonly depicted in the media?
Which hacker group is responsible for causing harm post-intrusion?
Which hacker group is responsible for causing harm post-intrusion?
What type of hacker is likely to target high-value systems?
What type of hacker is likely to target high-value systems?
What term is used for professionals hired to test the vulnerabilities of a system?
What term is used for professionals hired to test the vulnerabilities of a system?
Which behavior indicates a lax view toward security among organizations?
Which behavior indicates a lax view toward security among organizations?
What misconception about hackers is commonly portrayed in movies?
What misconception about hackers is commonly portrayed in movies?
What is a key characteristic of novice hackers?
What is a key characteristic of novice hackers?
Which of the following is NOT an example of lax security practices?
Which of the following is NOT an example of lax security practices?
What is a potential motivator for skilled hackers beyond financial gain?
What is a potential motivator for skilled hackers beyond financial gain?
Which type of computer security system lacks effectiveness according to the discussed viewpoints?
Which type of computer security system lacks effectiveness according to the discussed viewpoints?
What is a significant flaw in the mindset of organizations that believe they are secure simply because they haven't been attacked?
What is a significant flaw in the mindset of organizations that believe they are secure simply because they haven't been attacked?
What is a common misconception about individuals who call themselves hackers?
What is a common misconception about individuals who call themselves hackers?
How can organizations effectively avoid the laissez faire approach to security?
How can organizations effectively avoid the laissez faire approach to security?
Which approach is suggested for formulating security strategies?
Which approach is suggested for formulating security strategies?
What is a primary reason for the overestimation of network dangers?
What is a primary reason for the overestimation of network dangers?
What is a key difference between skilled hackers and novice hackers?
What is a key difference between skilled hackers and novice hackers?
What characterizes organizations that have a basic firewall and antivirus but little more?
What characterizes organizations that have a basic firewall and antivirus but little more?
According to the content, how can attacks be categorized?
According to the content, how can attacks be categorized?
What is the primary focus of the intrusion category of attacks?
What is the primary focus of the intrusion category of attacks?
What do blocking attacks aim to achieve?
What do blocking attacks aim to achieve?
What characterizes malware attacks?
What characterizes malware attacks?
How does human nature relate to the skill level of hackers?
How does human nature relate to the skill level of hackers?
Which category of attack has been identified as the most prevalent danger to systems?
Which category of attack has been identified as the most prevalent danger to systems?
Why is a study on the true skill level of hackers considered unreliable?
Why is a study on the true skill level of hackers considered unreliable?
What might happen if organizations focus excessive resources on unrealistic threats?
What might happen if organizations focus excessive resources on unrealistic threats?
What is a common characteristic of individuals claiming to be hackers?
What is a common characteristic of individuals claiming to be hackers?
What does the changing landscape of computer security imply about the threat level from hackers?
What does the changing landscape of computer security imply about the threat level from hackers?
What is the primary function of the loopback address 127.0.0.1?
What is the primary function of the loopback address 127.0.0.1?
In a Class B IP address, how many octets represent the network part?
In a Class B IP address, how many octets represent the network part?
Which range of IP addresses is designated for private use?
Which range of IP addresses is designated for private use?
What analogy is used to explain the concept of public and private IP addresses?
What analogy is used to explain the concept of public and private IP addresses?
What is the default subnet mask for a Class C IP address?
What is the default subnet mask for a Class C IP address?
How does network address translation (NAT) function in networking?
How does network address translation (NAT) function in networking?
What does subnetting primarily achieve?
What does subnetting primarily achieve?
Which of the following subnet masks allows for only 15 nodes in a subnet?
Which of the following subnet masks allows for only 15 nodes in a subnet?
What role does a gateway router play in a network?
What role does a gateway router play in a network?
What characterizes Classless Inter-Domain Routing (CIDR)?
What characterizes Classless Inter-Domain Routing (CIDR)?
What is the purpose of a subnet mask in networking?
What is the purpose of a subnet mask in networking?
Which of the following describes a Class A IP address?
Which of the following describes a Class A IP address?
What is the advantage of using Variable-Length Subnet Masking (VLSM)?
What is the advantage of using Variable-Length Subnet Masking (VLSM)?
What do the first octets of private IP address ranges signify?
What do the first octets of private IP address ranges signify?
What is considered sensitive information?
What is considered sensitive information?
Which legislation requires federal agencies to establish security programs?
Which legislation requires federal agencies to establish security programs?
What should network security personnel consider when determining if information is sensitive?
What should network security personnel consider when determining if information is sensitive?
What legal document specifically includes privacy concerns for sensitive information?
What legal document specifically includes privacy concerns for sensitive information?
How can a finding of negligence in data protection affect an organization?
How can a finding of negligence in data protection affect an organization?
What type of incidents might involve individuals responsible for network security?
What type of incidents might involve individuals responsible for network security?
What is considered a significant risk when hiring someone with a criminal background for cybersecurity roles?
What is considered a significant risk when hiring someone with a criminal background for cybersecurity roles?
Which of the following organizations was the first computer incident-response team?
Which of the following organizations was the first computer incident-response team?
What is phreaking primarily related to?
What is phreaking primarily related to?
Which law governs how publicly traded companies report on financial data?
Which law governs how publicly traded companies report on financial data?
What does a firewall primarily do?
What does a firewall primarily do?
How does a proxy server enhance security?
How does a proxy server enhance security?
What type of laws should network security professionals be aware of in their states?
What type of laws should network security professionals be aware of in their states?
What is non-repudiation in the context of computer security?
What is non-repudiation in the context of computer security?
What does the acronym SOX refer to in relation to network security?
What does the acronym SOX refer to in relation to network security?
What does access control aim to achieve?
What does access control aim to achieve?
Which website is known for providing guidelines and documentation related to computer security?
Which website is known for providing guidelines and documentation related to computer security?
Which principle is central to the concept of least privileges?
Which principle is central to the concept of least privileges?
What is the primary focus of the SANS Institute?
What is the primary focus of the SANS Institute?
What effect has the increase in network threats had on network administrators?
What effect has the increase in network threats had on network administrators?
What does auditing involve in the context of cybersecurity?
What does auditing involve in the context of cybersecurity?
What is an intrusion-detection system (IDS) designed to do?
What is an intrusion-detection system (IDS) designed to do?
What must be established to secure sensitive information in federal programs?
What must be established to secure sensitive information in federal programs?
What is a key feature of the CIA triangle in cybersecurity?
What is a key feature of the CIA triangle in cybersecurity?
What can result from hiring an unqualified penetration tester?
What can result from hiring an unqualified penetration tester?
Which device functions as a barrier between a network and the external environment?
Which device functions as a barrier between a network and the external environment?
What kind of experience do many phreakers have?
What kind of experience do many phreakers have?
Why is checking system logs important in cybersecurity?
Why is checking system logs important in cybersecurity?
What is a primary characteristic of malware that makes it particularly dangerous?
What is a primary characteristic of malware that makes it particularly dangerous?
Which of the following best describes a computer virus?
Which of the following best describes a computer virus?
How does the MyDoom virus primarily spread?
How does the MyDoom virus primarily spread?
What is the main function of a Trojan horse in malware?
What is the main function of a Trojan horse in malware?
Which of the following forms of malware specifically aims to track user activities?
Which of the following forms of malware specifically aims to track user activities?
What is a key logger primarily used for?
What is a key logger primarily used for?
Why are software key loggers generally more common than hardware key loggers?
Why are software key loggers generally more common than hardware key loggers?
What is the main purpose of a computer virus?
What is the main purpose of a computer virus?
What type of malware is commonly associated with pirated software?
What type of malware is commonly associated with pirated software?
Which malware type can cause significant network slowdowns without directly damaging the system?
Which malware type can cause significant network slowdowns without directly damaging the system?
What makes spyware particularly concerning for users?
What makes spyware particularly concerning for users?
How do Trojan horses typically gain access to a system?
How do Trojan horses typically gain access to a system?
What aspect of the MyDoom virus was significant in its design?
What aspect of the MyDoom virus was significant in its design?
Which of the following statements is true regarding malware spread?
Which of the following statements is true regarding malware spread?
What is the primary focus of a perimeter security approach?
What is the primary focus of a perimeter security approach?
Which of the following describes a layered security approach?
Which of the following describes a layered security approach?
What differentiates penetration testing from a standard audit?
What differentiates penetration testing from a standard audit?
What is a key characteristic of proactive security measures?
What is a key characteristic of proactive security measures?
Which approach to network security is often considered flawed for larger corporate settings?
Which approach to network security is often considered flawed for larger corporate settings?
How does a hybrid security approach combine different paradigms?
How does a hybrid security approach combine different paradigms?
What does an Intrusion Detection System (IDS) primarily do?
What does an Intrusion Detection System (IDS) primarily do?
Which law requires government agencies in the U.S. to enhance computer security measures?
Which law requires government agencies in the U.S. to enhance computer security measures?
What is the main goal of conducting a traditional audit in network security?
What is the main goal of conducting a traditional audit in network security?
In network security, what does a passive security approach entail?
In network security, what does a passive security approach entail?
What should organizations consider when choosing their network security approach?
What should organizations consider when choosing their network security approach?
Which security approach is preferred whenever possible in a network?
Which security approach is preferred whenever possible in a network?
What does the term 'network security paradigm' refer to?
What does the term 'network security paradigm' refer to?
What is a primary limitation of organizations employing a perimeter-only security model?
What is a primary limitation of organizations employing a perimeter-only security model?
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Study Notes
Network Security Introduction
- Common network threats: University web servers, government computers, banks, and health information are frequently targeted.
- Increasing focus on security: Individuals across industrialized nations are aware of hacking and identity theft.
- Training opportunities: Universities offer Information Assurance degrees and industry certifications (CISSP, CEH, Mile2 Security, SANS, Security+).
- Understanding threats crucial: Many network administrators lack a clear understanding of network vulnerabilities and common threats.
Network Basics
- Network definition: A network allows communication between machines. Physical connections (e.g., Cat5 cable to NIC) and wireless connections are used.
- Basic Network Structure: Connections to the outside world are usually protected by a firewall.
- Communication as a key vulnerability: Every communication channel is an attack vector.
- Network components: NICs, switches, routers, hubs, and firewalls are fundamental physical components. Network architecture is determined by how they are connected.
Data Packets
- Data transmission: Data is sent in packets, each typically under 65,000 bytes.
- Packets include headers: Headers contain destination, source, and packet count information.
- Attacks using packet headers: Some attacks target packet headers to alter information.
- Multiple headers: Packets might have multiple headers (IP, TCP, Ethernet, TLS) containing various information like source/destination IP addresses, protocol used, and port numbers.
IP Addresses
- IPv4 addresses: Common format of four decimal numbers (e.g., 192.0.0.5) separated by periods. Each number ranges from 0 to 255. 32 bits in total.
- Network classes: Class A (0-126), B (128-191), C (192-223). Class D and E are reserved.
- Class A, B and C: The first byte(octet) for Class A, the first two for Class B, and the first three for class C represent the network, and the rest represent the node.
- Loopback address: 127.0.0.1 (used for testing).
- Private IP addresses: Reserved ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) are used within a network but not for public internet access.
- Public IP addresses: Unique addresses for internet communication.
- Network Address Translation (NAT): Routers use NAT to translate private IP addresses to public ones for internet routing.
Subnetting and CIDR
- Subnetting: Dividing a network into smaller sub-networks.
- Subnet mask: Defines the network portion of an IP address, expressed as a 32-bit number. Determines which parts of the IP address define the network location, and which parts define individual computers (nodes) within the subnet. Masks (e.g., 255.255.255.0) use binary AND to combine with IP address to form the subnet.
- CIDR (Classless Inter-Domain Routing): Defines subnet masks with combinations of the IP address and a slash (e.g. /24, /31)
- IPv6: A 128-bit address system with hex numbering (e.g., 3FFE:B00:800:2::C). No subnetting; only uses CIDR.
Uniform Resource Locators (URLs)
- URLs: Human-readable address for accessing web pages.
- Domain Name System (DNS): Translates domain names to IP addresses.
- HTTP protocol: Used for communication with web servers (port 80).
- Error codes (e.g., 404): Error codes are returned by web servers to indicate issues with requests.
- Email protocols: POP3 and SMTP are common email protocols (POP3 used for receiving, and SMTP for sending mail)
- IMAP: Common email protocol, allows downloading of only headers then selecting messages to fully download (useful for mobile/smarthphones)
MAC Addresses
- MAC address: A unique address for each network interface card (NIC) expressed as a six-byte hexadecimal number. Address Resolution Protocol (ARP) translates IP addresses into MAC addresses.
Protocols
- Protocols: Agreed-upon communication methods in networking (e.g., HTTP). Table 1-2 in the text lists several common logical ports and protocols.
- TCP/IP: A suite of protocols for network communication.
- Port numbers: Numeric designations for communication pathways on a network.
Network Utilities
ipconfig: Displays network configuration information, including IP address and default gateway.ping: Sends a test packet and measures response time to assess reachability. Includesttl(time-to-live).tracert: Shows the route a packet takes to a destination, including intermediate hops and time taken.netstat: Displays current network connections.
OSI Model
- OSI model: Describes network communication layers (Application, Presentation, Session, Transport, Network, Data Link, Physical).
Threat Assessment
- Realistic assessment: Focus on common and likely threats.
- Two extreme views on security: Underestimating vs. overestimating threats.
- Skilled vs. unskilled hackers: Skilled hackers target high-value systems, unskilled hackers often target easier systems.
- Threat assessment: Weighing system attractiveness, information content, and security measures to determine threat level.
Classifications of Threats
- Three broad threat categories: Intrusion, blocking, and malware
- Intrusion attack: Attempts unauthorized access (e.g., hacking/cracking).
- Blocking attack: Prevents legitimate access to a service (e.g., denial-of-service).
- Malware: Malicious software (e.g., viruses, Trojan horses, spyware).
Malware
- Computer viruses: Self-replicating programs that infect other programs.
- Trojan horses: Disguised malicious programs masquerading as benign software.
- Spyware: Software that monitors users' activities.
- Keyloggers: A type of spyware that records keystrokes.
Intrusions
- Social engineering: Attack method manipulating humans to gain access.
- War-driving: Using vehicles to locate vulnerable wireless networks.
- Hacking methods: exploit software flaws to get unauthorized access.
Denial of Service
- Denial-of-service (DoS): Attacks that block legitimate users' access to resources.
- Example forms: Flooding targeted systems with false connection requests to overload resources.
Network Security and The Law
- Key legal issues: Laws like Sarbanes-Oxley (SOX) and HIPAA affect data security.
- Legal Mandate: Some laws govern how information is stored/accessed.
- Examples of computer security laws: Computer Security Act and OMB Circular A-130 apply to various sectors, and there are many state-level laws as well.
- Importance of Due Diligence: Legal ramifications for failed network security measures are critical.
Choosing a Network Security Approach
- Perimeter security: Focuses on protecting the network's edge.
- Layered security: Secures individual systems within a network.
- Passive vs. active security: Measures to prevent attacks vs. how quickly a system responds.
- Hybrid approaches: Combines perimeter and layered security paradigms and active and passive strategies for optimal balance.
Security Resources
- CERT (Computer Emergency Response Team): A vital resource for security guidelines, research, alerts, and more.
- Microsoft Security TechCenter
- F-Secure Corporation: Virus information, notifications, tools.
- SANS Institute: Extensive cybersecurity information.
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Description
Test your knowledge on key concepts and challenges in network security. This quiz covers critical issues faced by network administrators, misconceptions in media coverage, and various certifications available in the field. Prepare yourself for today's security landscape with these vital insights.
