Eiffel Computer Classes

16/05/2016

C/C++ Coding Exercise - Write an algorithm to determine if a number is “happy”.
A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 (where it will stay), or it loops endlessly in a cycle which does not include 1. Those numbers for which this process ends in 1 are happy numbers.
Example: 19 is a happy number
1^2 + 9^2 = 82
8^2 + 2^2 = 68
6^2 + 8^2 = 100
1^2 + 0^2 + 0^2 = 1
// Complete the following
bool isHappy(int n) {
// TODO:
}

15/05/2016

12/05/2016

The former cricketer who accepted Indian Olympic Association's invitation to be India's Goodwill Ambassador at the 2016 Rio Olympics is

a) Anil Kumble

b) Rahul Dravid

c) Virendra Shewag

d) Mohammad Kaif

e) Sachin Tendulkar

02/05/2016

भारतीय रेलवे द्वारा टिकट कैंसल कराने के लिए किस नम्बर की सुविधा जारी की गयी?

a) 139
b) 140
c) 141
d) 144

01/05/2016

1. Most modern TV’s draw power even if turned off the circuit the power is used in does what function?
(a) Sound (b) Color balance (c) High voltage (d) Remote control (e) None of the above (Ans : d)

2. What is the name of the series of Laptop computers manufactured by IBM called?
(a) LapPad (b) Aptiva (c) Thinkpad (d) Vaio (e) None of these (Ans : d)

3. Which computer has been designed to be as compact as possible?
(a) Micro computer (b) Mini (c) Super computer (d) Mainframe (e) None of these (Ans : a)

4. A device mounted on a communication satellite which receives, amplifies and re-transmits signals from earth station is–
(a) Track (b) Transistor (c) Transponder (d) Terminal (e) None of these (Ans : c)

5. Which of the following offers a combination of the features of RAM and ROM?
(a) Flash Memory (b) DRAM (c) DDR (d) Cache (e) None of these (Ans : a)

6. Which technology is used in a CDROM Drive?
(a) Mechanical (b) Optical (c) Electro mechanical (d) Fiber Optical (e) None of these (Ans : b)

7. What is the part of a database that holds only one type of information?
(a) Field (b) Report (c) Record (d) File (e) None of these (Ans : a)

8. Soft copy of a document has the characteristics that it can be–
(a) touched (b) touched and viewed (c) none (d) viewed only (e) Both (a) and (c) (Ans : d)

9. Data (information) is stored in computer as–
(a) Directories (b) Files (c) Floppies (d) Magnetic disk (e) None of these (Ans : b)

10. The pieces of equipment which are attached to the CPU of a computer and which it can access are called–
(a) output devices (b) peripherals (c) control units (d) hardware (e) None of these (Ans : b)

11. The binary system uses powers of–
(a) 2 (b) 10 (c) 8 (d) 16 (e) 18 (Ans : b)

12. Which of the following is Not a type of motherboard expansion slot?
(a) ISA (b) PCI (c) AGP (d) ATX (e) None of these (Ans : d)

13. The control of the jobs running within a system is–
(a) Job monitoring (b) Job stream (c) Job min (d) Job step (e) None of these (Ans : a)

14. How many digits of the DNIC (Data Network Identification Code) identify the country?
(a) first three (b) first four (c) first five (d) first six (e) first two (Ans : a)

15. A common boundary between two systems is called–
(a) Interdiction (b) Interface (c) Surface (d) All of these (e) None of these (Ans : b)

16. Which of the following enables you to make multiple changes in a document at once?
(a) Find command (b) Replace command (c) Drag and Drop (d) Copy command (e) None of these (Ans : b)

17. A computer program that converts assembly language to machine language is–
(a) Compiler (b) Interpreter (c) Assembler (d) Comparator (e) None of the above (Ans : c)

18. Copying a process from memory to disk to allow space for other processes is Called–
(a) Swapping (b) Deadlock (c) Demand Paging (d) Page Fault (e) None of the above (Ans : a)

19. All the information collected during database development is stored in a–
(a) repository (b) data warehouse (c) RAD (d) CASE (e) None of these (Ans : b)

20. The track on a disk which can be accused without repositioning the R/W heads is–
(a) Surface (b) Cylinder (c) Cluster (d) All of these (e) Circular (Ans : b)

30/04/2016

2. A computer assisted method for the recording and analyzing of existing or hypothetical systems is

A. Data transmission
B. Data flow
C. Data capture
D. Data processing
E. None of the above

30/04/2016

1. Which of the following languages is more suited to a structured program?

A. PL/1
B. FORTRAN
C. BASIC
D. PASCAL
E. None of the above