Kerala PSC-Tradesman in Computer Hardware maintenance Solved Question Paper
(A)The transmission takes place both way simultaneously
(B) the transmission take place both direction but only one side at a time
(C ) the transmission take place in one direction only
(D) None of the above
2. By remote login :
(A)users workstation is allowed to behave as though it is directly connected to the logged in machine
(B) users can just share information only
(C ) can share resources such as printers hard disk and send mail
(D) users can participate in teleconferencing only
3.A computer connected to internet can store multimedia information indexed using html; this is called:
(A)Internet address locator
(B) Email
(C ) Universal Resource Locator
(D) Web page
4. CCITT stands for:
(A)Central Consultant Institute for Telecommunication Technology
(B) Central Consultant Institute for Telegraphy and Telephony
(C ) Consultative committee for International Telephone and Telegraph
(D) Corporate consultant Institute for Telephone and Telegraph
5. Proxy server is used:
(A)to provide internet service to multiple users on a LAN
(B) to provide a duplicate server on internet
(C )to make email service fast and secure
(D) to reduce the traffic on the WAN segment
6. CSMA/CD stands for:
(A)Computer system Module attached with compact disk
(B) Communication System with Multiple Access to Centralized data
(C )Carrier sense Multiple Access with collision Detection
(D) Communication Service Managed by Automotive collision Deduction
7. The length of the data packet in Ethernet LAN is:
(A)Between 0 to 512 Kbytes
(B) 256 KB or more
(C ) 64 bit to 1 MB
(D) Between 46 and 1500 bytes
8. Write pre- compensation in Hard disk is
A) to compensate for the speed of the disk in different levels when multiple disks are used
(B) to adjust the difference in recording density at different cylinders
(C ) to compensate for the aging of disk surfaces
(D) none of the above
9. The protocol refers to
A)the rules for data transfer between consecutive layers
(B) the rules agreed by user and the system vendor
(C ) the rules relating to the data transfer; between corresponding layers of consecutive machine
(D) none of the above
10. In Windows NT rings
A)are special thread manger that dispatches thread scheduling to avoid concurrent dispatch
(B) protection mechanisms to separate user and kernel modes
(C )logical files which provides swapping space
(D) circular outer boundary of the OS
11. The scope of a macro definition
A)the entire macro
(B) extend from the point of definition to the red of the file
(C )entire program
(D) none of the above
13. for(i=0;i<=9;i++)
This loop when executed:
A)executed until i exceeds 9 but as means of introducing time delay
(B)cannot execute as no statement to execute
(C ) syntactically wrong
(D) none of the above
14. break statement. is used
A)to break the data into convenient units
(B)to break the memory into small modules
(C ) to stop the program execution and return to OS prompt
(D) to terminate the execution of a loop
15. Sorting is a process of arranging a set of similar information in ascending or descending order and in linear sort :
(A) repeated comparison of adjacent elements and exchange if necessary is done
(B) involves combining of two or more sorted groups into a single array
(C )each element is compared with all its successors and interchange if necessary
(D)all linear elements are sorted one after the other
16. String concatenation is :
(A)mixing of string with paragraphs or lines
(B)storage of two strings are joined together and one address is used
(C )one string is added to the end of other string and is stored in one location
(D)mixing of strings character by character in sorted order
17. strlwr() function :
(A) string is added at lower end of text file
(B)strings are sorted in lower half of the memory
(C )converts all uppercase letters in the string to lowerr case letters
(D) none of the above
18.The function strcmp() :
(A) copies string 1 into string2
(B)compares two strings and outputs larger one
(C )compares two strings and outputs smaller one
(D)compares two strings and returns 0, positive or negative value
19. In C language the use of library function and user defined function are frequent and :
(A)both are same, sometimes called as library function and sometimes called UD functions
(B)library function when used by user, it becomes user defined functions
(C ) library functions are those available in C language library and Ud functions are those defined by user
(D) none of the above
20.The statement
Fseek (fp,OL,O) ;
means :
fp is a file pointer
read write head to be positioned at the start of the file
read write head to be positioned at the end of the file
erase the contents of the file
21.How many bits are necessary to store an ASCII character?
(A)7
(B)8
(C)16
(D)15
22. Bitwise operators can operate upon :
(A)Ints and floats
(B)Ints and charges
(C ) Floats and doubles
(D)Ints and doubles
23.The C for loop
For(i=0;i<10 font="" i="">
Printf(“%d”,i&1);
(A)0101010101
(B)0111111111
(C) 0000000000
(D)1111111111
24.Before using a pointer in a program :
(A)it should not be assigned any value
(B) it should be initialized by assigning a value to it
(C) values can be assigned
(D)user can decide
25.Call by referrence to a function is :
(A) by passing argument value
(B) by passing the address of the argument
(C)by passing both values and address of argument
(D)by passing the function name itself
