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Networking Fundamentals (CEH) Flashcards
Certified Ethical Hacker (CEH) Flashcards
Study our Networking Fundamentals (CEH) flashcards for the Certified Ethical Hacker (CEH) exam with 45+ flashcards. View as flashcards, a searchable table, or as a fun matching game.
| Front | Back |
| At which OSI layer does IP addressing operate | Network layer |
| Define a Packet | A formatted unit of data used in networking for communication |
| In the OSI model | at what layer does a switch operate,Data Link layer |
| Name a protocol that operates at the Presentation layer of the OSI model | SSL/TLS |
| Name one type of wireless network encryption | WPA2 |
| Name the seven layers of the OSI model | Physical, Data Link, Network, Transport, Session, Presentation, Application |
| What does a standard web proxy server filter | HTTP and HTTPS traffic |
| What does ARP stand for | Address Resolution Protocol |
| What does CIDR stand for | Classless Inter-Domain Routing |
| What does DHCP do | Automatically assigns IP addresses to devices on a network |
| What does DHCP stand for | Dynamic Host Configuration Protocol |
| What does NAT stand for | Network Address Translation |
| What does TCP stand for | Transmission Control Protocol |
| What does the Transport layer of the OSI model handle | End-to-end communication, error correction, and flow control |
| What does VPN stand for | Virtual Private Network |
| What is a key function of a VLAN | To segment a network logically irrespective of physical topology |
| What is a MAC address | A unique hardware identifier assigned to a network interface card |
| What is a Ping Sweep | An ICMP-based method to identify active hosts on a network |
| What is a VLAN | Virtual Local Area Network |
| What is an example of a Class A IP address | 10.0.0.1 |
| What is the default subnet mask for a Class C IP address | 255.255.255.0 |
| What is the difference between IPv4 and IPv6 addressing | IPv4 uses 32-bit addresses; IPv6 uses 128-bit addresses |
| What is the function of a Proxy server | To act as an intermediary between clients and servers for requests |
| What is the function of the Transport layer in the TCP/IP model | Delivering data and ensuring its completeness |
| What is the limitation of Telnet | It sends data, including passwords, in plaintext making it insecure |
| What is the most common port for remote desktop protocol | 3389 |
| What is the port number for HTTP | 80 |
| What is the primary characteristic of a TCP connection | Reliable and connection-oriented |
| What is the primary function of DNS | To translate domain names into IP addresses |
| What is the primary function of ICMP | To send error messages and operational information about IP-based communication |
| What is the primary purpose of a subnet mask | To divide an IP network into sub-networks for better organization |
| What is the primary use of Telnet | To remotely access and manage devices over a network |
| What is the purpose of a DMZ in network security | To provide an additional layer of protection by isolating public-facing services |
| What is the purpose of NAT | To allow multiple devices to share a single public IP address |
| What is the purpose of the ARP protocol | To map IP addresses to MAC addresses |
| What is the purpose of the OSI model | To standardize networking frameworks and guide interoperability between systems |
| What is the role of a VPN | To securely connect networks and protect data in transit over the internet |
| What port does FTP use for control commands | 21 |
| What protocol is a secure alternative to Telnet | SSH (Secure Shell) |
| What protocol is used for fast | connectionless communication,UDP (User Datagram Protocol) |
| What type of device connects two different networks | Router |
| What type of network topology uses a single central connection point like a hub | Star topology |
| Which device operates at the Physical layer of the OSI model | Hub |
| Which layer of the OSI model do firewalls typically operate on | Network or Transport layer |
| Which protocol is used for secure web traffic | HTTPS |
About the Flashcards
Flashcards for the Certified Ethical Hacker (CEH) exam provide a quick review of the OSI model layers and essential protocols such as TCP, UDP, IP, HTTP, HTTPS, DNS, DHCP, and ARP. Each card explains the purpose, operation, and interrelationships of these technologies to strengthen foundational networking knowledge.
You will also revisit device functions-routers, switches, hubs, firewalls-and learn how data moves through star topologies, VLANs, and virtual private networks. Key addressing concepts like IPv4 versus IPv6, classful ranges, CIDR notation, subnet masks, NAT, and port assignments appear throughout, alongside security basics such as SSL/TLS, WPA2, SSH, and DMZ placement.
Topics covered in this flashcard deck:
- OSI & TCP/IP layers
- Core network protocols
- IP addressing & subnetting
- Network devices & topologies
- Ports, services & security