Computer Networks
Master OSI 7-layer & TCP/IP models, physical media, multiplexing, switching, CSMA/CD, subnetting, IPv4/IPv6, TCP/UDP, DNS, HTTP, and network security.
"Understand the theory,
ace the interview."
Subject Curriculum
Foundational concepts: definitions, network classifications, topologies, and connecting hardware
Exam and placement study guide for What is a Computer Network?.
Exam and placement study guide for Types of Networks (PAN, LAN, MAN, WAN).
Exam and placement study guide for Network Topologies (Bus, Star, Ring, Mesh, Tree).
Exam and placement study guide for Networking Devices & Operating Layers.
Comprehensive 10-question placement quiz covering all topics in Introduction to Computer Networks.
OSI 7-layer architecture, TCP/IP 4-layer model, encapsulation, and model comparison
Exam and placement study guide for The OSI Reference Model (7 Layers).
Exam and placement study guide for The TCP/IP Reference Model (4 Layers).
Exam and placement study guide for OSI vs TCP/IP ā A Detailed Comparison.
Comprehensive 10-question placement quiz covering all topics in Network Reference Models.
Physical transmission media, guided vs unguided signals, multiplexing, and switching
Exam and placement study guide for Transmission Media (Guided vs Unguided).
Exam and placement study guide for Multiplexing Techniques (FDM vs TDM vs WDM).
Exam and placement study guide for Switching Techniques (Circuit vs Packet Switching).
Comprehensive 10-question placement quiz covering all topics in The Physical Layer.
Framing, error detection (CRC, Hamming), flow control, CSMA/CD MAC protocols, and Ethernet
Exam and placement study guide for Framing and Error Detection (Parity, Checksum, CRC, Hamming).
Exam and placement study guide for Flow Control (Stop-and-Wait vs Sliding Window).
Exam and placement study guide for Medium Access Control (ALOHA, CSMA/CD, CSMA/CA).
Exam and placement study guide for Ethernet (IEEE 802.3) and MAC Addressing.
Comprehensive 10-question placement quiz covering all topics in The Data Link Layer.
Logical addressing, IPv4/IPv6, subnetting, packet headers, and routing protocols (OSPF, BGP)
Exam and placement study guide for IP Addressing, Classes, and Subnetting.
Exam and placement study guide for The IPv4 Packet Header Structure.
Exam and placement study guide for Routing Algorithms: Distance Vector vs Link State.
Exam and placement study guide for Routing Protocols (RIP, OSPF, BGP) and NAT.
Comprehensive 10-question placement quiz covering all topics in The Network Layer.
End-to-end process-to-process delivery, TCP vs UDP, 3-way handshake, and congestion control
Exam and placement study guide for TCP vs UDP: Protocols & Characteristics.
Exam and placement study guide for The TCP Three-Way Handshake & Connection Teardown.
Exam and placement study guide for TCP Congestion Control (Slow Start & Sawtooth Curve).
Comprehensive 10-question placement quiz covering all topics in The Transport Layer.
High-level protocols: Client-Server vs P2P, DNS resolution, HTTP/HTTPS, and email architectures
Exam and placement study guide for Client-Server vs Peer-to-Peer (P2P) Architecture.
Exam and placement study guide for DNS ā The Domain Name System.
Exam and placement study guide for HTTP and HTTPS (Hypertext Transfer Protocol).
Exam and placement study guide for Email Protocols (SMTP, POP3, IMAP), FTP, and DHCP.
Comprehensive 10-question placement quiz covering all topics in The Application Layer.
The CIA Triad, symmetric vs asymmetric encryption, digital signatures, firewalls, and VPN tunnels
Exam and placement study guide for Security Goals ā The CIA Triad.
Exam and placement study guide for Encryption Techniques (Symmetric vs Asymmetric).
Exam and placement study guide for Perimeter Defense: Firewalls and Virtual Private Networks (VPNs).
Comprehensive 10-question placement quiz covering all topics in Network Security Fundamentals.
