What is dispatch latency?

Options: The time taken by the dispatcher to stop one process and start another B. The time taken by the processor to write a file into disk C. The whole time taken by all processor D. None of Above

Ans:– A ,

Description: mcqquestions

More Operating System Related questions:

What was the name of the first commercially available micro¬processor chip?
Options: Intel 8008,    Intel 8080,    Intel 4004,    Motorola 6809

Ans:C ,C

Which of the following typically uses a keyboard for input?
Options: desktop terminal,    point-of-sale terminal,    financial transaction terminal,    All of the above

Ans:D,All of the above

The situation when in a linked list START=NULL is
Options: a. underflow b. overflow c. housefull d. saturated

Ans:- a,- a

What will be the output of the program in Turbo C? #include<stdio.h> int main() { char near *near *ptr1; char near *far *ptr2; char near *huge *ptr3; printf("%d, %d, %d\n", sizeof(ptr1), sizeof(ptr2), sizeof(ptr3)); return 0; }
Options: 4, 4, 8,    4, 4, 4,    2, 4, 8,    2, 4, 4

Ans:D ,D

. Hard disk is coated in both side with
Options: A) Magnetic metallic oxide B) Optical metallic oxide C) Carbon layer D) All of the above


What layer protocol is responsible for user and the application programme support such as passwords, resource sharing, file transfer and network management?
Options: Layer 4 protocols,    Layer 5 protocols,    Layer 6 protocols,    Layer 7 protocols

Ans:D ,D

A Personal Consultant knowledge base contain information in the form of:
Options: parameters,    contexts,    production rules,    All of the above

Ans:D ,D

2. Which command is used to see the sub-directory structure of drive?
Options: a. Tree b. List c. Subdir d. Subtree

Ans:Correct Answer: a ,Correct Answer: a

In data transmission, the bit coding scheme used to represent a byte is typically:
Options: EBCDIC,    ASCII,    SNA,    Hexadecimal

Ans:B ,B

Which of the following specifies the network address and host address of the computer?
Options: The IP address,    The TCP address,    The subnet mask,    The default gateway

Ans:A ,A

How can you navigate around virtual consoles?
Options: Alt+Function Key,    Ctrl+Function Key,    Ctrl+Alt+Del,    Alt+a+w+Function Key

Ans:A ,A

. The metal disks, which are permanently housed in, sealed and contamination free containers are called
Options: A) Hard disks B) Floppy disk C) Winchester disk D) Flexible disk


Which of the following is Relation-algebra Operation
Options: Select B. Union C. Rename D. All of the above

Ans:– D ,

What is the output of the program #include<stdio.h> int main() { extern int fun(float); int a; a = fun(3.14); printf("%d\n", a); return 0; } int fun(int aa) { return (int)++aa; }
Options: 3,    3.14,    0 ,    4

Ans:E ,E

A _____ is a formalized computer information system that can integrate data from various sources to provide the information necessary for management decision making.
Options: prompt,    passwords,    MIS,    Tactical

Ans:C ,C

A single transistor can be used to build which of the following digital logic gates?
Options: AND gates,    OR gates,    NOT gates,    NAND gates

Ans:C ,C

How can you create a uniform appearance by adding a background image to all slides?
Options: a. Create a template b. Edit the slide master c. Use the autocorrect wizard d. All of the above

Ans: – B , – B

Which WAN encapsulations can be configured on an asynchronous serial connection? PPP ATM HDLC SDLC Frame Relay
Options: 1 and 2,    2 and 4,    3, 4 and 5,    All of the above

Ans:A ,A

. Paper spreadsheets can have all the same advantages as an electronic spreadsheet except which of the following?
Options: a. Rows and columns b. Headings c. Speed d. None

Ans:– c,– c

Which programming languages are classified as low level languages?
Options: Basic, COBOL, FORTRAN B. Prolog 2, Expert Systems C. Knowledge based Systems D. Assembly Languages

Ans:  – D ,

Which WLAN IEEE specification allows up to 54Mbps at 2.4GHz?
Options: A,    B,    G,    N

Ans:C ,C

. A disadvantage to a ____file is that there is no easy way to tell which fields are numbers, text, dates, or currency.
Options: a. standardized b. fixed c. delimited d. text

Ans:8 – d ,8 – d

A consideration evaluated by management when planning to convert to a computer system is :
Options: maintenance,    available software,    CPU sized speed,    All of the above

Ans:D ,D

. A characteristic of card systems is:
Options: A) Slowness in processing data B) Using cards as records of transactions C) Needing a larger DP staff D) All of the above


A 6-MHz channel is used by a digital signaling system utilizing 4-level signals. What is the maximum possible transmission rate?
Options: 1.5 Mbaud/sec,    6 Mband/sec,    12 Mbaud/sec,    24 Mbaud/sec

Ans:C ,C

Which of the following medium access control technique is used for bus/tree?
Options: token ring,    token bus,    CSMA,    MAC

Ans:B ,B

. The ability of an operating system to control the activities of multiple program at the same time is called
Options: a. Multitasking b. Multiprocessing c. Multioperating d. Multipaging

Ans:3 – a ,3 – a

Text formulas:
Options: a. Replace cell references b. Return ASCII values of characters c. Concatenate and manipulate text d. Show formula error value

Ans:8211; c,8211; c

How many tables may be included with a join?
Options: One,    Two,    Three,    All of the above.

Ans:D ,D

. Which of the following operating system do you choose to implement a client server network?
Options: a. MS DOS b. Windows c. Windows 98 d. Windows 2000

Ans: d, d

What protocol(s) is(are) allowed a user to retrieve her/his mail from the mail server to her/his mail reader?
Options: POP3,    FTP,    MAP,    All of the above

Ans:A ,A

Which is not true about surrogate keys?
Options: They are short.,    They are fixed.,    They have meaning to the user.,    They are numeric.

Ans:C ,C

Which one of the following statements most accurately reflects the nature of ac power?
Options: The current in an ac circuit flows in one direction, but changes value periodically,    The current in an ac circuit flows in one direction at a steady level,    The current in an ac circuit changes direction periodically,    The current in an ac circuit flows in two directions at the same time

Ans:C ,C

. Your German supplier still invoices for parts in Deutsche marks. How can you have Excel convert those sums to Euros?
Options: a. On the Insert menu, click Symbol and from the currency symbols subset, select the Euro sign. b. On the tools menu, click Add-Ins, and select the Euro Currency Tools check box c. Apply a selected background color d. All of above

Ans:– b,– b

An advantage of blocking a tape is that
Options: additional processing time is consumed,    the direct file method can be emulated,    tapes contain less data and longer tapes,    less tape is used to store the same amount of data

Ans:D ,D

.   An organization has a president, vice president, managers and supervisors. On what level of an organization chart are the vice presidents
Options: a. Fourth level b. Third level c. Second level d. First level

Ans:0 – C ,0 – C

8. Which type of command in DOS needs additional files for their execution?
Options: a. Internal commands b. External commands c. Batch commands d. Redirectors

Ans:Correct Answer: b,Correct Answer: b

Which command will display the CHAP authentication process as it occurs between two routers in the network?
Options: show chap authentication,    show interface serial 0,    debug ppp authentication,    debug chap authentication

Ans:C ,C

  Which is the shortcut key to jump to the first slide of the presentation? A.  Home B.  Alt + Home C.  Ctrl + Home D.  Shift + Home

Ans:– C ,

A six - digit card field used for postal ZIP codes is defined as
Options: A letter field,    An alphabetic field,    A numeric field,    An alphanumeric field

Ans:C ,C

A physical connection between the microprocessor memory and other parts of the microcomputer is known as
Options: A) Path B) Address bus C) Route D) All of the above


. Which of the following is the most commonly used encoding standard of Unicode?
Options: UTF-6 B. UTF-7 C. UTF-8 D. UTF-9

Ans:– C ,

In which addressing mode the operand is given explicitly in the instruction?
Options: absolute mode,    immediate mode,    indirect mode,    index mode

Ans:B ,B

Computer instructions written with the use of English words instead of binary machine code is called
Options: Mnemonics,    Symbolic code,    Gray code,    Op-code


When integrating word and excel, word is usually the
Options: a. Server b. Destination c. Client d. Both b and c

Ans:#8211; d,#8211; d

Which of the following database object produces the final result to present?
Options: a. Forms b. Reports c. Queries d. Tables

Ans:ndash; b,ndash; b

. The Search tool CANNOT be used on which major Access object?
Options: a. Forms b. Queries c. Reports d. Tables

Ans:2 – c ,2 – c

A programmer reviews the accuracy of an algorithm by _____ it.
Options: Analyzing,    Coding,    Desk-checking,    Planning

Ans:C ,C

Which of the following commands is used to obtain a list of all files by modification time?
Options: ls -1,    ls -t,    ls -i,    ls -R

Ans:B ,B

Which of the following languages is the most widely used?
Options: PL/1,    BASIC,    FORTRAN,    PASCAL

Ans:C ,C