1 UNIT STANDARD
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All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source. |
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SOUTH AFRICAN QUALIFICATIONS AUTHORITY |
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REGISTERED UNIT STANDARD: |
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Demonstrate an understanding of Wide Area Computer Networks (WAN`s), comparing them with Local Area Networks (LAN`s) |
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SAQA US ID |
UNIT STANDARD TITLE |
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114061 |
Demonstrate an understanding of Wide Area Computer Networks (WAN`s), comparing them with Local Area Networks (LAN`s) |
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ORIGINATOR |
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SGB Information Systems and Technology |
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PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY |
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– |
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FIELD |
SUBFIELD |
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Field 10 – Physical, Mathematical, Computer and Life Sciences |
Information Technology and Computer Sciences |
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ABET BAND |
UNIT STANDARD TYPE |
PRE-2009 NQF LEVEL |
NQF LEVEL |
CREDITS |
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Undefined |
Regular |
Level 5 |
Level TBA: Pre-2009 was L5 |
5 |
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REGISTRATION STATUS |
REGISTRATION START DATE |
REGISTRATION END DATE |
SAQA DECISION NUMBER |
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Reregistered |
2015-07-01 |
2018-06-30 |
SAQA 10105/14 |
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LAST DATE FOR ENROLMENT |
LAST DATE FOR ACHIEVEMENT |
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2019-06-30 |
2022-06-30 |
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In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise. |
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This unit standard does not replace any other unit standard and is not replaced by any other unit standard. |
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PURPOSE OF THE UNIT STANDARD |
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This unit standard is intended · To provide fundamental knowledge of the areas covered · For those entering the workplace in the area of Data Communications & Networking. · As additional knowledge for those wanting to understand the areas covered. People credited with this unit standard are able to: · Explain wide area computer networks (WAN`s) · Evaluate a wide area network (WAN) · Explain network administration The performance of all elements is to a standard that allows for further learning in this area. |
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LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING |
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The credit value of this unit is based on a person having prior knowledge and skills to: · Demonstrate an understanding of fundamental mathematics (at least NQF level 3). · Demonstrate PC competency skills (End-User Computing unit Standards, at least up to NQF level 3.). · Describe data communications. · Demonstrate an understanding of local area computer networks, by installing a networked workstation. |
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UNIT STANDARD RANGE |
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N/A |
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Specific Outcomes and Assessment Criteria: |
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SPECIFIC OUTCOME 1 |
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Explain wide area computer networks (WAN`s). |
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ASSESSMENT CRITERION 1 |
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1. The explanation identifies the components of a WAN and outlines their purpose. |
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ASSESSMENT CRITERION RANGE |
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Cables, cards, terminators, connectors, boot ROM, hubs, repeaters, servers. (at least 3). |
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ASSESSMENT CRITERION 2 |
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2. The explanation identifies the purpose of a WAN. |
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ASSESSMENT CRITERION 3 |
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3. The explanation identifies and compares WAN configurations. |
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ASSESSMENT CRITERION RANGE |
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Star, Bus, Ring |
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ASSESSMENT CRITERION 4 |
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4. The explanation identifies and compares WAN protocols. |
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ASSESSMENT CRITERION RANGE |
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Ethernet, TCP/IP, SNA |
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ASSESSMENT CRITERION 5 |
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5. The explanation identifies and compares WAN transport media. |
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ASSESSMENT CRITERION RANGE |
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Twisted pair; Coaxial cable; Optic fibre; Wireless (at least 2). |
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SPECIFIC OUTCOME 2 |
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Evaluate a wide area computer network (WAN). |
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OUTCOME RANGE |
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Network must include multiple sites connected via circuit / packet switching. |
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ASSESSMENT CRITERION 1 |
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1. The evaluation identifies the method of implementation of the WAN. |
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ASSESSMENT CRITERION 2 |
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2. The evaluation distinguishes categories of the network components, their functions & examples. |
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ASSESSMENT CRITERION RANGE |
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Hardware, software, communications media, carriers. |
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ASSESSMENT CRITERION 3 |
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3. The evaluation identifies and explains features and constraints of the network from a functional perspective. |
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ASSESSMENT CRITERION 4 |
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4. The evaluation assesses the suitability of the network for its use. |
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ASSESSMENT CRITERION 5 |
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5. The evaluation proposes and compares alternative network designs. |
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SPECIFIC OUTCOME 3 |
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Explain Network Administration. |
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ASSESSMENT CRITERION 1 |
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1. The explanation identifies the tasks involved and outlines their requirements. |
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ASSESSMENT CRITERION RANGE |
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Technical control, performance monitoring. |
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ASSESSMENT CRITERION 2 |
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2. The explanation outlines, for a range of factors, how response times are affected. |
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ASSESSMENT CRITERION RANGE |
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Speed of devices, bandwidth, routing, queuing, processing time, priorities at host and nodes, message size. |
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ASSESSMENT CRITERION 3 |
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3. The explanation outlines the principles of network interconnections. |
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ASSESSMENT CRITERION RANGE |
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Inter-network protocols, gateways. |
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ASSESSMENT CRITERION 4 |
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4. The explanation outlines and explains network security administration procedures. |
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ASSESSMENT CRITERION RANGE |
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Generation, encryption, keys, passwords, logs, audits. |
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ASSESSMENT CRITERION 5 |
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5. Network administration documentation is completed. |
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