QUES ON TWO 2.1 Describe the three necessary criteria for an effective and efficient network below? 2.2 2.1.1 Performance 2.1.2 Reliability 2.1.3 Security A WLAN can be built using any of several different wireless network protocols, most commonly either Wi-Fi or Bluetooth. Wireless LANs can contain many different kinds of devices; List any five devices that we can use? (20 MARKS) mmm (3) (3) (3) (11) SECT ON C: (THIS SECTION IS COMPULSORY) QUE ION THREE 3.1 3.2 3.3 3.4 List out the 5 advantages and 2 disadvantages of a bus topology List out the 3 advantages and 4 disadvantages of ring topology. Name four factors needed for a secure network? Differentiate the two terminology: (a) Broadband and (b) Baseband (25 MARKS) (25 MARKS) 5560 (5) (5) (9) (6) Initiated By Authorised By Issuing Office Document Academic Director Group Chief Executive Officer Head Office-Main Campus NET 511 Dr Muni Kooblal MrJ Ramnundlall CONTROLLED COPY Page 7 of 8 Document No. Revision No Revision Date Issue Date Exams/02/2017 01/2015 02/10/2017 02/10/2017 SECTION D: (ANSWER ONE QUESTION FROM THIS SECTION) QUESTION FOUR 4.1 According to their functions, the seven layers of the OSI model can be classified into three subgroups. Match each of the seven layers into their respective groups and explain the functionality of each of the three groups as listed below. (S MARKS) (2 MARKS) 4.1.1 Network support layers 4.1.2 User support layers (10) (10) 4.1.3 End-to-end reliable data transmission. El QUESTION FIVE (2 M 7 5.1 Critically expound the below four factors needed for a secure network? 5.1.1 Privacy 5.1.2 Authentication 5.1.3 Integrity 5.1.4 Non-Reputation FTTF (4) (4) (4) (4) 5.2 Identify and explain in details the two types of WLAN Hardware and Connections _TOTAL MARKS: 100