COMPUTER SUPPORT AND MAINTENANCE - MAY 2018

 KASNEB DICT LEVEL II  
TUESDAY: 22 MAY 2018  
COMPUTER SUPPORT AND MAINTENANCE

Answer all Questions

QUESTION ONE
(a) Define the following terms as used in computing:

•  Computer support (2 marks)
• Computer maintenance (2 marks)

(b) John Busuti, a technician at Mafunzo College was asked to replace a fault optical drive.
      Required
      Outline five components or tools necessary for the task (5 marks)

(c) (i) Describe the term "incremental backup" as used in computing. (2 marks)
     (ii) Highlight three advantages of incremental backup. (3 marks)

(d) Joyce Maleki suspects that her desktop computer has overheating problems
      Required
     (i) Identify two indicators of an overheating computer. (2 marks)
     (ii) Suggest four possible causes of overheating in a computer. (4 marks)

QUESTION TWO
(a) Outline two disadvantages of integrated motherboards. (2 marks)
(b) Explain four ways of determining the type of processor that a computer is using. (4 marks)
(c) Describe two methods of cooling a computer memory. (4 marks)
(d) Examine five roles of a technical checklist in system selection and acquisition. (5 marks)
(e) Outline the steps involved in installing a computer monitor. (5 marks)

QUESTION THREE
(a) Sarah Maputo acquired a software product and found some installation specification which she could not understand:
      Required
     Explain to her the meaning of each of the specifications below:
     (i) WOW 64. (2 marks)
     (ii) XGA (20124x768). (2 marks)

     (iii) Intel ® Core 2 duo 3.33 GHZ. (2 marks)

     (iv) EULA. (2 marks)

(b) Distinguish between a "hard disk drive (HDD)" and a "solid state drive (SSD)" based on each of the following criteria:
     (i) Speed. (2 marks)
     (ii) Components. (2 marks)

     (iii) Noise. (2 marks)

(c) Tom Mluba is troubleshooting a computer and suspects a power related problem. 

      Required

      (i) Outline two indicators of a computer that has a power related problem. (2 marks)
     (ii) Propose four diagnostic techniques and procedures that would help Tom Mluba determine the possible power related problems. (4 marks)

   

QUESTION FOUR

(a) Propose four safety precautions you should observe when installing a motherboard. (4 marks)

(b) Examine four methods of installing BIOS updates.(4 marks)

(c) Summarise three advantages and three disadvantages of a screenless display.(6 marks)

(d) Analyse three categories of technical support used in computing technology.(6 marks)

  

QUESTION FIVE

(a) Explain howthe computer operating system could manage the following occurrences. (2 marks)

     (i) Computer running out of RAM. (2 marks)

     (ii) A newly added peripheral device. (2 marks)

     (iii) Correcting a hardware error during the booting process. (2 marks)

(b) Jeff Kingi would like his new computer and mobile devices to assist him complete his assignments, pay bills, edit digital photos, post social media updates and play games.

     Required

     Propose four programs and applications that Jeff Kingi should install in his computer and mobile devices. 

     (4 marks)

 (c) With reference to question(b) above,describe how Jeff Kingi would address the following:

      (i) Detect computer viruses. (2 marks)

     (ii) Backup his computer. (2 marks)

     (iii) Use firewall. (2 marks)

     (iv)  Defragment hard disks. (2 marks)

     (v) Uninstall an application program. (2 marks)