Computer Networks

Computer Networks
Computer networks. Local and wide-area networking for enterprises and service providers. Workgroups/routers/hubs/switches; network server administration; Internet protocols and routing; security and privacy.
 Hours3.0 Credit, 2.0 Lecture, 3.0 Lab
 PrerequisitesIT 210B & STAT 201 & C S 236; (or, for C S 236, concurrent enrollment).
 ProgramsContaining IT 347
Course Outcomes

Basic Concepts

Understands computer networking concepts and vocabulary.

Concept Implementation

Has received experience with real implementations of the concepts.

Technology Relationships

Has built an intuition of the relationship between standards bodies and technology.


Has built confidence through problem solving.

Nodes and Links

Describe the role of a node and a link in an abstract network model.

Technical Terms

Define bandwidth, latency and throughput.

Data Volume Formula

Explain how bandwidth * latency = data volume is related to the concept of traditional “volume.”

Sliding Window Protocol

Describe the operation of a packet based sliding window protocol.

OSI Model vs. Internet Model Layering

List 7 layers of the OSI Model and compare them to the layering used in the Internet model.


Explain the concept of encapsulation and its relationship to layering in the network models.

IP Packet Transfers

Describe how an IP packet is carried in an Ethernet frame.

Sliding Window Relationships

Explain how TCP’s byte-stream sliding window is related to a traditional packet-based sliding window algorithm.

Hardware Terms

Explain the differences between a hub, switch (bridge), and a router.

Specific Hardware Terms

Explain the relationship between an 802.1D bridge and a modern switch.

Learning Bridges

Describe how a learning bridge “learns” what port should be used to forward a packet to a device.

Spanning Tree

Describe how Spanning tree works and explain why it is necessary.

Distance-Vector vs. Link-State Routing

Compare and contrast distance-vector and link-state routing algorithms.

SOHO Router Components

Explain the operation of the components of a SOHO wireless edge router including, DHCP, NAT/PAT, Routing function, Switching function and relationship to wireless access point.


Describe how DNS works in the global internet including caching and root servers.

Cons of Guaranteed Delivery

Explain why guaranteed delivery is not desirable in certain multimedia protocols.

Access from Devices

Access MIBS from devices using SNMP on a workstation.

Virtual LANs

Describe the operation of and configuration of Virtual LANs on an 802.1Q switchAccess MIBS from devices using SNMP on a workstation.

Troubleshooting Connectivity

Troubleshoot connectivity problems in a host occurring at multiple layers of the OSI model.


Describe applications of symmetric encryption, asymmetric encryption and one-way hash to authentication, non-repudiation, integrity and confidentiality.