Who proposed the relational model?

Options: Bill Gates B. E.F. Codd C. Herman Hollerith D. Charles Babbage

Ans:– B ,

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More Database Systems Related questions:

. Weight refers to
Options: a. The print density of characters b. The height of the printed character c. Upright or slanted shape d. The design and appearance of characters

Ans:– a,– a

A multifield transformation does which of the following?
Options: Converts data from one field into multiple fields,    Converts data from multiple fields into one field,    Converts data from multiple fields into multiple fields,    All of the above

Ans:D ,D

Which of the following TCP/IP protocol is used for transferring electronic mail messages from one machine to another?
Options: FTP,    SNMP,    SMTP,    RPC

Ans:C ,C

Each data item in a record may be a group item composed of sub-items; those items which are indecomposable are called
Options: a. elementary items b. atoms c. scalars d. all of above

Ans: d, d

To install a second IDE drive into a computer, you must:
Options: Set the master-slave jumper to slave on the second drive,    Use the IDE configuration software to set the new drive as slave,    Verify that you define the new drive as D: in the CMOS setup,    Verify that you attach the drive to the connector at the end of the ribbon cable

Ans:A ,A

The analyst learns of the manager's information needs through use of
Options: mail survey,    in depth interview,    controlled experiment,    observation

Ans:B ,B

Which command displays the configuration register setting?
Options: show ip route,    show boot version,    show version,    show flash

Ans:C ,C

What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W?
Options: 0 degree,    26.6 degree,    90 degree,    180 degree

Ans:B ,B

.  By default, what is the name of a new module in the Modules folder of the Project pane called?
Options: a.            Bas1 b.           Module c.           New Module d.            Module1

Ans:– d,– d

Page Down Key
Options: a. Moves the cursor one line down b. Moves the cursor one page down c. Moves the cursor one screen down d. Moves the cursor one paragraph down

Ans:–  C,–  C

A feasibility document should contain all of the following except:
Options: project name,    problem descriptions,    feasible alternative,    data-flow diagrams

Ans:B ,B

Embedded pointer provide
Options: a secondary access path,    a physical record key,    an inverted index,    All of the above

Ans:A ,A

The Internet Control Message Protocol (ICMP)
Options: allows gateways to send error a control messages to other gateways or hosts,    provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another,    reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem,    All of the above

Ans:D ,D

. Generally quick launch toolbar is displayed on
Options: a. the left side of taskbar b. the right side of taskbar c. on the middle of taskbar d. a bar out of taskbar

Ans:4 – a ,4 – a

Which of the following symbol sets would be most likely to contain a mathematical symbol such as a degree sign, greater than or equal to, or a Greek letter?
Options:  A) Wingdings, B) Wingdings 3, C) Webdings, D) Symbol,


The equipment with which the computer talks to its users is called a
Options: word processor,    peripheral,    software,    diskette


What do the following declaration signify? char **argv;
Options: argv is a pointer to pointer.,    argv is a pointer to a char pointer.,    argv is a function pointer.,    argv is a member of function pointer.

Ans:B ,B

Point out the error in the following program. #include<stdio.h> int main() { void v = 0; printf("%d", v); return 0; }
Options: Error: Declaration syntax error 'v' (or) Size of v is unknown or zero.,    Program terminates abnormally.,    No error.,    None of these.

Ans:A ,A

How would you round off a value from 1.66 to 2.0?
Options: ceil(1.66),    floor(1.66),    roundup(1.66),    roundto(1.66)

Ans:A ,A

When of the following produces the best quality graphics reproduction?
Options: Dot metric printers,    Ink jet printers,    Laser printers,    Plotters

Ans:D ,D

Establishing a virtual connection is functionally equivalent to
Options: Connecting as virtual memory,    Physically connecting a DTE and DCE,    Placing a telephone call prior to a conversation,    Placing a modem prior to a conversation

Ans:C ,C

Producer consumer problem can be solved using
Options: semaphores,    event counters,    monitors,    all of the above

Ans:D ,D

When operating below its resonant frequency, a parallel RLC circuit has the characteristics of a:
Options: parallel RL circuit,    parallel RC circuit,    parallel RLC circuit operated above its resonant frequency,    purely resistive circuit

Ans:A ,A

.   We can replace a font on all sides with another font using the …. option
Options: a. Edit, Fonts b. Tools, Fonts c. Tools, Replace Fonts d. Format, Replace Fonts

Ans:3 – D ,3 – D

Which command is used to list out all the hidden files along with the other files?
Options: ls -l,    ls -x,    ls -F,    ls -a

Ans:D ,D

The entity integrity rule states that:
Options: no primary key attribute may be null.,    no primary key can be composite.,    no primary key may be unique.,    no primary key may be equal to a value in a foreign key.

Ans:A ,A

Which one of the following symbols is not used in an ERD?
Options: Rectangle,    Oval,    Diamond,    Circle

Ans:D ,D

. If you need a text to show vertically in a cell. How will you achieve this?
Options: a. Choose Vertical on Text alignment in Format Cells dialog box b. Choose 90 Degrees in Orientation of Format Cells dialog box c. Choose Distributed from the Vertical drop down list of Format Cells dialog box d. Choose Center Across Selection from Horizontal combo box in Format Cells dialog box

Ans:– b,– b

Which of the following represents a correct sequence for the boot process on a DOS machine?

Ans:B ,B

How can you remove tab stop markers from ruler?
Options:  A) Double click the tab marker and choose Clear All, B) Drag the tab stop marker out of the ruler, C) Right click the tab stop marker and choose remove, D) All of above,


The DC voltage on most circuit boards is:
Options: -12 volts,    0 volts,    +5 volts,    +12 volts

Ans:C ,C

A network administrator is connecting hosts A and B directly through their Ethernet interfaces, as shown in the illustration. Ping attempts between the hosts are unsuccessful. What can be done to provide connectivity between the hosts? A crossover cable should be used in place of the straight-through cable. A rollover cable should be used in place of the straight-through cable. The subnet masks should be set to A default gateway needs to be set on each host. The subnet masks should be set to
Options: 1 only,    2 only,    3 and 4 only,    1 and 5 only

Ans:D ,D

SQL*Plus will finish the statement and execute it when the user types in this:
Options: A left slash ( \ ) followed by [Enter].,    A colon ( : ) followed by [Enter].,    A semicolon ( ; ) followed by [Enter].,    A period ( . ) followed by [Enter].

Ans:C ,C

. Assembly language started to be used from
Options: A) first generation computers B) second generation computers C) third generation computers D) fourth generation computers


Which protocol reduces administrative overhead in a switched network by allowing the configuration of a new VLAN to be distributed to all the switches in a domain?
Options: STP,    VTP,    DHCP,    ISL

Ans:B ,B

6. Which of the following statements is true in regard to diskcopy?
Options: a. Copy and discopy are same b. Discopy is a built in command in dos c. Diskcopy can be used on hard disks d. Diskcopy can be used with a floppy and a hard disk

Ans:Correct Answer: c,Correct Answer: c

XML is which of the following?
Options: A scripting language that states the rules for tagging elements.,    A programming language that states the rules for tagging elements.,    A programming language that allows the creation of customized tags.,    A scripting language that allows the creation of customized tags.

Ans:D ,D

The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer
Options: An additional token is added for every 1,000 nodes,    The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500,    The network becomes less efficient,    After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device

Ans:E ,E

You can have EISA and MCA devices in the same PC.
Options: True,    False,    ,    

Ans:B ,B

The size or magnitude of a voltage or current waveform is
Options: Amplitude,    Aloha,    Angle Modulation,    Attenuation

Ans:A ,A

Which command is used with vi editor scroll half page backward?
Options: [Control-d],    [Control - u],    [Control-c],    [Control -P]

Ans:B ,B

Which device can understand difference between data & programs?
Options: Input device B. Output device C. Memory D. Microprocessor

Ans:– D ,

Your CD-ROM audio cable connects to the:
Options: speaker,    sound card (or motherboard if sound is integrated with it),    power supply,    hard drive

Ans:B ,B

. What is the extension of paint brush?
Options: a. .pbs b. .bmp c. .pmb d. None of the above

Ans:0 – b ,0 – b

Embedded SQL is which of the following?
Options: Hard-coded SQL statements in a program language such as Java.,    The process of making an application capable of generating specific SQL code on the fly.,    Hard-coded SQL statements in a procedure.,    Hard-coded SQL statements in a trigger.

Ans:A ,A

Which of the following data structure can't store the non-homogeneous data elements?
Options: a. Arrays b. Records c. Pointers d. None

Ans:- a,- a

.Two main measures for the efficiency of an algorithm are
Options: A)Processor and memory b.Complexity and capacity c.Time and space d.Data and space


. The ribbon in Word 2007 consists of a series of
Options: a. Gates b. Smaller ribbons c. Tabs d. Icons

Ans: – C , – C

What does the port number in a TCP connection specify?
Options: It specifies the communication process on the two end systems B. It specifies the quality of the data & connection C. It specify the size of data D. All of the above

Ans:– A ,

The ODBC Level 1 API contains which of the following functions?
Options: Browse possible connections and data sources only,    Connect to data sources with driver-specific information only,    Process a scrollable cursor only,    Both 1 and 3 above are in the OBDC Level 1 API.

Ans:B ,B