Network Security Essentials

Network Security Essentials enial-of-Service (DoS) attack - Correct Answer An attack preventing authorized users from accessing a network Flooding - Correct Answer Overwhelming the network with requests Distributed Denial-of-Service (DDoS) - Correct Answer A DoS attack launched from multiple systems simultaneously Network-based DDoS attack - Correct Answer Exhausting a system's network bandwidth Protocol-based DDoS attack - Correct Answer Exhausting network resources or infrastructure equipment Application layer DDoS - Correct Answer Exhausting specific functions of a program Operational technology (OT) - Correct Answer Hardware and software for monitoring and controlling industrial equipment DNS - Correct Answer Hierarchical system for identifying network resources DNS poisoning - Correct Answer Redirecting users to a malicious website by modifying DNS queries DNS resolution - Correct Answer Translating a domain name to an IP address DNS zone - Correct Answer A portion of a DNS namespace managed by an administrator Authoritative name server - Correct Answer Manages a domain's configuration and DNS records Domain hijacking - Correct Answer Changing domain registration info without owner's consent DNSSEC - Correct Answer Extensions providing cryptographic authentication of DNS data Data origin authentication - Correct Answer Assurance that DNS data originated from the zone owner Data integrity - Correct Answer Assurance that DNS data has not been modified in transit DNS cache poisoning - Correct Answer Attack where DNS data is modified to redirect to malicious sites Data link layer - Correct Answer Layer facilitating data transfer and error detection in OSI model Media Access Control (MAC) - Correct Answer Unique 48-bit identifier for network devices at the data link layer Address Resolution Protocol (ARP) - Correct Answer Protocol resolving internet addresses to MAC addresses ARP cache table - Correct Answer Table mapping internet addresses to corresponding MAC addresses ARP poisoning - Correct Answer Attack associating attacker's MAC address with target host's IP address MAC flooding - Correct Answer Attack overwriting a switch's MAC table with invalid MAC addresses Unicast flooding - Correct Answer Switch broadcast of a packet on all switch ports MAC cloning - Correct Answer Changing a network device's factory-assigned MAC address Man-In-The-Middle (MITM) - Correct Answer Attacker eavesdrops or modifies communication between two parties Secure Channel - Correct Answer Communication channel ensuring data authenticity and confidentiality Man-In-The-Browser (MITB) - Correct Answer MITM attack using malware to intercept messages between web browser and server Post Office Protocol (POP) - Correct Answer Protocol for retrieving emails from a mail server, not supporting email sending POP3 - Correct Answer Latest version of POP, using TCP port 110 for email retrieval POP Secure (POP3S) - Correct Answer Uses SSL/TLS for secure communication between POP client and server Internet Message Access Protocol (IMAP) - Correct Answer Protocol for retrieving emails from a mail server, allowing multiple client access IMAP4 - Correct Answer Latest version of IMAP, using TCP port 143 for email retrieval IMAP Secure (IMAPS) - Correct Answe