Conversion of binary number 1010101000010111 to hexadecimal number is


Options: D8F916,    A8B916,    AA1716,    D9F816

Ans:C,C






More Computer Fundamental Related questions:


Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff?
Options: 20 Ohm,    30 Ohm,    10 Ohm,    100 Ohm

Ans:A ,A


A homogenous distributed database is which of the following?
Options: The same DBMS is used at each location and data are not distributed across all nodes.,    The same DBMS is used at each location and data are distributed across all nodes.,    A different DBMS is used at each location and data are not distributed across all nodes.,    A different DBMS is used at each location and data are distributed across all nodes.

Ans:B ,B


If odd parity is used for ASCII error detection, the number of 0s per eight-bit symbol is _____.
Options: even,    odd,    indeterminate,    42

Ans:B ,B


The examination and changing of single bits or small groups of his within a word is called
Options: Bit,    Byte,    Bit manipulation,    Bit slice

Ans:C,(Canswer


. What is a light pen?

Options: A) Mechanical Input device B) Optical input device C) Electronic input device D) Optical output device

Ans:B,B


. Charles Babbage is considered the father of modern computers because
Options: A) of his difference engine B) of his analytical engine C) his concept of input, mill and output D) All of above

Ans:C,C


. On a PC, how much memory is available to application software?
Options: A) 1024 KB B) 760 KB C) 640 KB D) 560 KB

Ans:C,C


The two form layout types which display multiple records at one time are tabular and___
Options: a. columnar b. justified c. date sheet d. pivot table

Ans:ndash; b,ndash; b


The technique of assigning a memory address to each I/O device in the SAM system is called:
Options: wired I/O,    I/O mapping,    dedicated I/O,    memory-mapped I/O

Ans:D ,D


An entire path name, consisting of several sub-directory names can contain upto
Options: a. 13 character b. 36 character c. 63 character d. 53 character

Ans:Correct Answer: c ,Correct Answer: c


. Which one is true for unconditional disk formatting?
Options: a. Destroys every byte of data on a disk by overwriting itwith with blank spaces b. Do not check/scan surface after format c. Transfer system files after format d. All of above

Ans: a, a


A microprocessor integrates the arithmetic logic and control circuitry of a computer into one chip. The first microprocessor was built by a group of engineers at the Intel Corpn. Can you tell who headed this group?
Options: Victor Poor,    Stan Mazor,    Marcian E. (Ted) Hoff,    Seymour Cray

Ans:C ,C


.   Material consisting of text and numbers is best presented as
Options: a. A table slide b.  A bullet slide c. A title slide d. All of above

Ans:1 – A ,1 – A


. System files allocated at
Options: a. Boot area b. FAT area c. Data area d. Directory

Ans:0 – a ,0 – a


If you delete the contents of NVRAM and reboot the router, what mode will you be in?
Options: Privileged mode,    Global mode,    Setup mode,    NVRAM loaded mode

Ans:C ,C


In which way is a managerial information system (MIS) superior to electronic data processing (EDP)?
Options: It is batch oriented,    It is most cost effective,    It provides summary reports without details,    All of the above

Ans:C ,C


If you do not know which version of MS-DOS you are working with, which command will you use after having booted your operating system?
Options: FORMAT command,    DIR command,    VER command,    DISK command

Ans:C ,C


In virtual memory systems, Dynamic address translation
Options: is the hardware necessary to implement paging,    stores pages at a specific location on disk,    is useless when swapping is used,    is part of the operating system paging algorithm

Ans:A ,A


Systems software is a program that directs the overall operation of the computer, facilitates its use and interacts with the users. What are the different types of this software?
Options: Operating system,    Languages,    Utilities,    All of the above

Ans:D ,D


Which of the following allow you to select more than one slide in a presentation?
Options: a. Alt + Click each slide b. Shift + drag each slide c. Shift + Click each slide d. Ctrl + Click each slide

Ans: – C , – C


Can you tell what passes into and out from the computer via its ports?
Options: Data,    Bytes,    Graphics,    Pictures

Ans:B,B


. Press the enter key in all of the following circumstances except _____.
Options: a. to insert a blank line into a document b. when the insertion point reaches the right margin c. to begin a new paragraph d. in response to certain Word commands

Ans: – B , – B


Which one of the following is a statement of KirchhofFs voltage law?
Options: The total voltage in a parallel circuit is less than the value of the smallest voltage,    The algebraic sum of voltages in a loop is equal to zero,    The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it,    The algebraic sum of voltages entering and leaving a point is equal to zero

Ans:B ,B


One of the three most common types of payment systems is the
Options: pinion fund transaction system,    travel expense reimbursement system,    accounts payable system,    All of the above

Ans:D ,D


. Which is the valid data type in Access?
Options: a. Number b. Text c. Currency d. All of the above

Ans:– d,– d


Which would you choose to create a bar diagram?
Options: Edit, Chart B. Insert, Chart C. Tools, Chart D. Format, Chart

Ans:– B ,


Which of the following statements is true concerning subqueries?
Options: Involves the use of an inner and outer query.,    Cannot return the same result as a query that is not a subquery.,    Does not start with the word SELECT.,    All of the above.

Ans:A ,A


Molecule is
Options: The smallest particle of a substance that retains the properties of that substance,    A atom that has a shortage of electrons in its outer orbit,    A atom that has an excessive number of electrons in its outer orbit,    A atom that flows whenever there is an imbalance of electrical charges between two points

Ans:A ,A


. From where do you change mouse setting?
Options: a. Setting >> mouse b. Hardware setting c. Control panel >> mouse d. None of the above

Ans:1 – c ,1 – c


If you wanted to deny FTP access from network 200.200.10.0 to network 200.199.11.0 but allow everything else, which of the following command strings is valid?
Options: access-list 110 deny 200.200.10.0 to network 200.199.11.0 eq ftp access-list 111 permit ip any 0.0.0.0 255.255.255.255,    access-list 1 deny ftp 200.200.10.0 200.199.11.0 any any,    access-list 100 deny tcp 200.200.10.0 0.0.0.255 200.199.11.0 0.0.0.255 eq ftp,    access-list 198 deny tcp 200.200.10.0 0.0.0.255 200.199.11.0 0.0.0.255 eq ftp access-list 198 permit ip any 0.0.0.0 255.255.255.255

Ans:D ,D


What is the first octet range for a class B IP address?
Options: 128 - 255,    1 - 127,    192 - 223,    128 - 191

Ans:D ,D


What command is used to terminate a process?
Options: kill,    cancel,    haltsys,    shutdown

Ans:A ,A


69. Ctrl + A
Options: a. Align Right b. Select All c. Change font d. Save document

Ans:–  B ,–  B


What will be the output of the program? #include<stdio.h> int fun(int **ptr); int main() { int i=10; const int *ptr = &i; fun(&ptr); return 0; } int fun(int **ptr) { int j = 223; int *temp = &j; printf("Before changing ptr = %5x\n", *ptr); const *ptr = temp; printf("After changing ptr = %5x\n", *ptr); return 0; }
Options: Address of i Address of j,    10 223,    Error: cannot convert parameter 1 from 'const int **' to 'int **',    Garbage value

Ans:C ,C


. To show/hide the grid lines in Microsoft Excel 2007
Options: a. Page Layout -> Grid lines -> View b. Insert -> Grid lines -> View c. View -> Grid lines -> View d. Edit -> Grid lines -> View

Ans:– a,– a


Which is true for the digital computer?
Options: It is less accurate than the analog computer,    It represents the decimal numbers through a string of binary digits,    It is used primarily in scientific applications,    Both (a) and (c)

Ans:B ,B


. When we look at the cost, which of the following computer is most expensive?
Options: A) Mainframe Computer B) Mini Computers C) Micro Computers D) Super Computers

Ans:D,D


The cat command is used to
Options: capture a file,    display a file,    print a file,    copy a file

Ans:B ,B


. According to the Leszynski Naming Conventions, which of the following is the prefix for a text box control?
Options: a. txt b. txb c. tbc d. tex

Ans:1 – a ,1 – a


Your company has a LAN in its downtown office and has now set up a LAN in the manufacturing plant in the suburbs. To enable everyone to share data and resources between the two LANs, what type of device(s) are needed to connect them? Choose the most correct answer.
Options: Modem,    Cable,    Hub,    Router

Ans:D ,D


The ALU and control unit of most of the microcomputers are combined and manufacture on a single silicon chip. What is it called?
Options: a . monochip b . microprocessor c. ALU d . control unit 

Ans:7.b,7.b


In simplex transmission
Options: Data format is simple,    Data transmission is one way,    Data can be transmitted to small distances only,    All of the above

Ans:B,B


Machine language is
Options: A) Machine dependent B) Difficult to program C) Error prone D) All of above

Ans:-D,-D


A memory that holds micro programs is
Options: Core memory,    ROM,    RAM,    Control memory

Ans:B ,B


When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?
Options: 80,    100,    30,    150

Ans:C ,C


In a PC, how much memory is available to application software?
Options: 1024 KB,    760 KB,    640 KB,    560 KB

Ans:C ,C


The refresh-vector CRT uses which of the following techniques?
Options: The beam constantly travels across the screen to turn on/off a series of pixels.,    Makes changes on the image by increasing the anode voltage.,    Uses an electron gun to continuously flood the surface of the tube.,    Creates images on the screen by scanning straight-line vectors between selected points.

Ans:D ,D


Identify which of the following are declarations 1 : extern int x; 2 : float square ( float x ) { ... } 3 : double pow(double, double);
Options: 1,    2,    1 and 3,    3

Ans:C ,C


Which of the following is the correct order if calling functions in the below code? a = f1(23, 14) * f2(12/4) + f3();
Options: f1, f2, f3,    f3, f2, f1,    Order may vary from compiler to compiler,    None of above

Ans:C ,C


. Selecting the Rows 5 & 6 then choose Insert->Row. What will happen?
Options: 2 Rows will be inserted after Row 4 B. 2 Rows will be inserted after Row 5 C. 2 Rows will be inserted after Row 6 D. 2 Rows will be inserted after Row 7

Ans:– A ,

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