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

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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

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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

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The analyst learns of the manager's information needs through use of
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Which command displays the configuration register setting?
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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

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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

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Embedded pointer provide
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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

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. 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

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

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What do the following declaration signify? char **argv;
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Point out the error in the following program. #include<stdio.h> int main() { void v = 0; printf("%d", v); return 0; }
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How would you round off a value from 1.66 to 2.0?
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When of the following produces the best quality graphics reproduction?
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Establishing a virtual connection is functionally equivalent to
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Which command is used to list out all the hidden files along with the other files?
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The entity integrity rule states that:
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Which one of the following symbols is not used in an ERD?
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How can you remove tab stop markers from ruler?
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The DC voltage on most circuit boards is:
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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 255.255.255.192. A default gateway needs to be set on each host. The subnet masks should be set to 255.255.255.0.
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What does the port number in a TCP connection specify?
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Ans:B ,B

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