Anna University Chennai 2007 B.Sc Computer Science PC Testing and Trouble Shooting - exam paper

B. Sc. DEGREE exam

PC TESTING AND TROUBLE SHOOTING

Time : 3 Hours
Maximum : 100 marks

ans ALL quextions

PART A – (10 X two = 20 marks)

1. State the Purpose of Documentation.
2. What is Inspection ? Why is it necessary?
3. Differentiate extended memory from expanded memory.
4. What are the drawbacks of a PCI bus?
5. Why does floppy controller logic in a PC not have a sector buffer, unlike hard disk controller logis?
6. Why does the recording issues handled in a floppy Disk Drives (FDDs)?
7. List out the different factors involved in power protection systems.
8. What is A20 Gate?
9. Give the functionalities of anti-virus tools.
10. What are the troubleshooting problems handled when DOS is loaded and started?



PART B – (5 X 16 = 80 marks)


11. (a) (i) Compare and contrast the Tehnical Reference Manuals and Hardware Maintenance Manuals. (8)
(ii) Write short notes on :

1. Hand Tools (8)
2. Loop Back Connectors

(or)

(b) (i) elaborate the functionalities of Logic Probes and Logic Pulsers? discuss (8)

(ii) Elaborately explain on the Disassembly Procedures (8)


12. (a) (i) State the advantages and disadvantages of the various kinds of buses – ISA bus,
EISA bus, VESA bus and PCI bus. provide their uses. (10)

(ii) Differentiate the different factors that distinguish a physical memory with that of
Testing memory.

(or)
(b) discuss in detail the design of 386 Motherboard logic with a neat sketch and compare
Its features with that of 486 Motherboard (16)



13. (a) define the different problems that should be taken care during Drive Installation. explain on the troubleshooting and correcting procedures. (16)

(or)
(b) (i) with a neat diagram analysis the various features of a floppy disk
Construction. (6)
(ii) explain the logic behind formatting a floppy (4)
(iii) discuss the FDD Interface and FDD Interface lines (6)


14. (a) (i) How is a PC saved from most of the issues by proper maintenance? Tabulate
The different issue sources, failures and causes and elaborate the respective
Preventive maintenance actions considered? (10)

(ii) What is meant y dedicated data backup hardware? discuss (6)

(b) (i) elaborate the features that could be upgraded in a system?

(ii) explain how system speed e improved. Sate the advantage and disadvantage
In the upgradation of system memory. (6+6+4)


15. (a) discuss the nodal tester and system tester troubleshooting tools and what are on
The 4 categories of troubleshooting approaches (16)

(b) (i) explain in detail the Pro-Norton Diagnostics and Norton utilities (8)
(ii) elaborate the functions of file management in a DOS environment ?
State the troubleshooting processes in DOS operating system (8)

Earning:   Approval pending.