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Computer Programmer/Data Control Officer(2015)
Computer and Information Technology

Q.1AI systems based on the human brain's ability to differentiate patterns are called:

Robotic System
Fuzzy logic Systems
Neural Networks
Expert systems

(C)

Q.2What is the structured approach called for developing software and Information systems?

software design
Prototyping
SDLC
Systems methodology

(C)

Q.3In asynchronous transmission, the gap time between bytes is _______

Fixed
variable
a function of the data rate
zero

(B)

Q.4IEEE has defined the specifications for a wireless LAN, called _____ which covers the physical and data link layers.

IEEE 802.3
IEEE 802.5
IEEE 802.11
IEEE 802.2

(C)

Q.5The access method In Bluetooth is

FDMA
TDD-TDMA
CDMA
none of the above

(B)

Q.6Each station on an Ethernet network has a unique _______ address imprinted on its network interface card

5-byte
32-bit
48-bit
64-bit

(C)

Q.7What is the result of ANDing 255 and 15?

255
15
0
270

(B)

Q.8Polymorphism does not______

Refer to the possible binding of a method in a message with one of several implementations
Make the programming of messages more complex
Support incremental modification of( (A) Software
Support reusability

(B)

Q.9Which of the following is not an ite statement supported by PL/SQL?

The FOR LOOP statement
The LOOP UNTIL statement
The WHILE LOOP statement
None of above

(B)

Q.10Which of the following is not a common attribute?

% Is Open
% Is Not Ope n
% Found
% Not Found

(B)

Q.11 It is possible to detect deadlocks is a database system at the following cost

Query the database with SQL
Special hardware devices
Slower overall processing
It is not possible to detect deadlock

(C)

Q.12Which of the following is not one of the advantages of parallel processing?

Scale Up
autonomy
speeup
availability

(B)

Q.13Null is ______

The same as zero for integer
the same as blacnk for character
Not a value
Both A & C

(D)

Q.14In the relational database terminology, a table is synonymous with ....

A column
Arow
An attribute
A relation

(D)

Q.15Which is NOT one of the four basic control structures?

Iteration
execute
sequence
conditional

(D)

Q.16Which attribute of the script tag is used to load an external JavaScript file?

Source
language
src
type

(C)

Q.17What is displayed by the alert? var x = "9", y ="2", z ="4" alert (x + y z)

44
17
924
None of above

(C)

Q.18The science of making machines imitate human thinking and behavior is known as

Executive information system
Artificial intelligence
Management reporting system
Decision support system

(B)

Q.19Which of the following , function return statements is syntactically correct?

Return 12
return 12; exit
Exit; return 12
None of above

(B)

Q.20What is a better name for this function? Function mystery(n) {return nn}

sort
cube
square
square()

(D)

Q.21Which statement immediately terminates execution of a loop?

Exit
break
quit
kill

(B)

Q.22Which statement can be used to examine the value of the cookie string associated with the current web page?

alert(cookie)
alert(document.cookie.value
alert (thls.cookie)
alert(document.cookie)

(D)

Q.23A software object consists of two things bundled together:

Behavior and methods
states and properties
Messages and methods
data and code modules

(B)

Q.24Which of the following gets called when an object is being created?

Constructor
virtual function
destructor
main

(A)

Q.25In C++ Which operator is having the highest' precedence?

Postfix
unary
shift
equality

(A)

Q.26The operator used for dereferencing 0 indirection is

?
&
->
->>

(A)

Q.27What is the mandatory preprocessor directive ' for C++?

#define
#include
#undef
None of above

(B)

Q.28Which looping process is best used when the number of iterations is known?

For
while
do-while
None of above

(C)

Q.29 How many types of user-defined data type are in C++?

1
2
3
4

(C)

Q.30How do define the user-defined exceptions?

Inheriting and overriding exception class functionality.
Overriding class functionality
Inheriting class functionality
None of above

(A)

Q.31Which of the following can serve as random-access iterator?

Memory pointer
Object pointer
Class pointer
None of above

(B)

Q.32Artificial Intelligence software

Always make and executes the decision without your intervention
it can make decisions for you on its own
Handles repetitive tasks such as searching and retrieving and monitoring
Handle tasks involved in office automation

(A)

Q.33The time factor when determining the efficiency-of algorithm is measured by

Counting microseconds
Counting the number of key operations
Counting the number of statements
Counting the kilobytes of algorithm

(B)

Q.34The operation of processing each element In the list is known as.

Sorting
Merging
Inserting
Traversal

(D)

Q.35A variable P is called pointer if

P contains the address of an element in DATA
P points to the address of first element in DATA
P can store only memory addresses
P contain the DATA and the address of DATA

(A)

Q.36The post order traversal of a binary tree is DEBFCA. Find out the pre order traversaf?

ABFCDE
ADBFEC
ABDECF
ABDCEF

(C)

Q.37An algorithm that calls itself directly or indirectly is known as

Sub algorithm
Recursion
Polish notation
Traversal algorithm

(B)

Q.38If every node u in G is adjacent to every other node v in G, A graph is said to be

Isolated
complete
finite
strongly connected

(B)

Q.39Reference is not same as pointer because

A reference can never be null
A reference one established cannot be changed
Reference does not need an explicit dereferencing mechanism
All of these

(D)

A programming language based on logic
A computer where each processor has its own operating system, its own memory and its own hard disk
describes structure of the contents of a database
None of A, B, C

(A)

Q.41Representation of data structure in memory is called?

Recursive
Abstract data type
Storage structure
File structure

(B)

Q.42The data structure required to evaluate a postfix expression is

Queue
Stack
Array
Linked-list

(B)

Q.43A full binary tree with n leaves contains

n nodes
log2n nodes
2n-1 nodes
2n+1 nodes

(C)

Q.44The wort case of quick sort has order

O(n)2
O(n)
O(nlpgn)
None of above

(A)

Q.45The register which holds the address of the location to or from which data are to be transferred is called

Index registers
Instruction register
Memory address register
Memory data register

(C)

Q.46Which of the following term is used for a function defined inside a class?

Member Variable
Member function
Class function
Classic function

(B)

Q.47A_______tree is a tree where for each parent node; there is only one associated child node.

Balanced binary tree
rooted complete binary tree
Complete binary tree
degenerate tree

(D)

Q.48The memory address of the first element of an array is called

Floor address
foundation address
first address
base address

(D)

Q.49Look at this series: V, VIII, XI, XIV, XX... What number should fill the blank?

IX
XXIII
XV
XVII

(D)

Q.50Look at this series: J14, L16,......... P20, R22_____What number should fill the blank?

S24
N18
M18
T24

(C)

Q.51At the baseball match, Aisha was sitting in seat 253. Maria was sitting to the right of Aisha in seat 254. In the seat to the left of Aisha was Saira. Nisha was sitting to the left of Safra. Which seat is Nisha sitting in?

251
254
255
256

(A)

Q.52Exercise is to gym as eating is to

Food
dieting
fitness
restaurant

(D)

Q.53COBBLER: SHOE::

jockey: horse
contractor: building
mason: stone
cowboy: boot

(B)

Q.54Two, trains, one from Lahore to Karachi and the other from Karachi to Lahore, start simultaneously. After they meet, the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is

2:3
4:3
6:7
9:16

(B)

Q.55A 300 meter long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?

320 m
350m
650m
Data inadequate

(B)

Q.56A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

23 days
37 days
37.5 days
40 days

(C)

Q.57On selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 bails. The cost price of a ball is:

Rs 45
Rs 50
Rs 55
Rs 60

(D)

Q.58Ayesha's father was 38 years of age when she was born while her mother was 36 years • old when her brother four years younger to her was born. What is the difference between the ages of her parents?.

2 years
4 years
6 years
8 years

(C)

Q.59A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is

250
276
280
285

(D)

Q.60In how many ways can the letters of the word 'LEADER' be arranged?

70
144
360
720

(C)

Q.61WPA2 is used for security in .........

Ethernet
Bluetooth
Wi-Fi
Hi-Fi

(C)

Q.62Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce In 4 minutes?

648
1800
2700
10800

(B)

Q.63A milk vendor has 2 cans of milk. The first contains 25% water and the rest milk. The second contains 50% water. How much milk should he mix from each of the containers so as to get 12 liters of milk such that the ratio of water to milk is 3: 5?

4 liters, 8 litters
6 liters, 6 liters.
5 liters, 7 liters
7 liters, 5 liters

(B)

Q.64If a person walks at 14 km/hr Instead of 10 km/hr, he would have walked 20 km more. The actual distance traveled by him is

50 km
56km
70km
80km

(C)

Q.65From a point P on a level ground, the angle of elevation of the top tower is 30°. If the tower is 100 m high, the distance of point P from the foot of the tower is:

149m
156m
173m
200m

(C)

Q.66A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:

145°
150°
155°
160°

(C)

Q.67A number consists of 3 digits whose sum is 10. The middle digit is equal to the sum of the other two and the number will be increased by 99 if its digits are reversed. The number is:

145
253
370
352

(B)

Q.68Two numbers are respectively 20% and 50% more than a third number..The ratio of the two numbers is:

2:5
3:5
4:5
6:7

(C)

Q.69Data mining is also referred as..

Knowledge discovery in databases
Data Cleaning
Data extraction
Data management

(A)

Q.70Which of the following is not a key component for an email system to work?

Email client
email client
email client
encryption

(D)

Q.71 A URL does not provide the answer to which of the following?

How can a Web page be accessed?
When can e'Web page be found?
What is the file name of the corresponding Web page?
Where can a Web page be found?

(B)

Q.72Which of the following are all Boolean . operators?

AND, OR, NOR
AND, OR, NOT
IF, THEN, ELSE
IF, AND, BJT

(B)

Q.73Which mode should compressed files be transferred in?

Binary
ASCII
GIF
Plaintext

(A)

Q.74Which of the following statements is false?

Java is a subset of JavaScript
Java is an object-oriented programming language
JavaScript can be used to make Web pages dynamic
Java applets are small Java programs

(A)

Q.75Java executable code is stored in which type of file?

Java
class
Exe
Html

(C)

Q.76Guest books are typically implemented using which of the following?

Frames
JAVA
Forms
Pert

(A)

Q.77What is the output of this program? #include using namespace std; int main () { int a = 5, b = 6, c, d; c = a, b; d = (a, b); cout < < c << 't' <

5 6
6 5
6 7
None of above

(B)

Q.78Which of the following gives the best sense of an encryption scheme?

A method of encoding information
A plaintext message
A private key
A cipher text message

(A)

Q.79What type of protocol would you expect to see in a URL for a secure document?

Https
ftps
Hits
hashs

(A)

Q.80In C++, exception handling is targeted at

Run-time error
Compile time error
Logical error
Syntax

(A)

Q.81Which of the following declarations are illegal?

Void ptr;
char str = "hello";
Char str = "hello";
const int p1;

(D)

Q.82Which server-side technique is available in ASP.NET?

Application states
Session states
Database support
Both A and B

(D)

Q.83________methods are used with application object to ensure only one process accesses, a variable at a time

Synchronize
threadlock
synchronize ()
lock ()and unlock ()

(D)

Q.84Which of the following is to be implemented for .net remote server object?

ISeriaiizable
ISinglecall
Unknown
IMarshalbyvalue

(A)

Q.85Is the Data Type return in IsPostback propery?

bit
Boolean
int
string

(B)

Q.86Which of the following base class do all web forms inherit from:

Windows class
web class
page class
document class

(C)

Q.87By default, ASP.NET SessioniDs in

Cookies
Cache
Database
Global variable

(A)

Q.88What is the main purpose of integration-testing?

Design errors
Interface errors
Procedure errors
None of above

(B)

Q.89The name for the way that computers manipulate data Into information is called:

Programming
processing
Storing
organizing

(B)

Q.90The UNIX operating system is written in the language.

COBOL
Binary
FORTRAN
C-Language

(D)

Q.91The function of a Kernel in an operating system is to

Interpret the JCL commands
Interact with the hardware devices
Interact with user
None of these

(B)

Q.92If you magnify a ________ you can see its individual pixels.

Vector graphic
bitmap
DXF
EMF

(B)

Q.93To create a prototype of. a new product, a designer might use a_________ program.

CAD
3D modeling
paint
draw

(A)

Q.94What type of technology allows you to verbally speak with someone over the Internet?

Wiki
VolP
Ephone
Social network

(B)

Q.95The color of an object is an example of a(n)

Attribute
detail
listing
specification

(A)

Q.96A language that can be written on one platform and executed on another platform is said to be

Portable
robust
third generation
dynamic

(A)

Q.97________iss Microsoft's latest entry into the programming arena.

Java
.NET
Visual Basic
Pascal

(B)

Q.98A _______is anything that can cause harm.

Vulnerability
phish
threat
spoof

(C)

Q.99A _________s main purpose is to prohibit unauthorized access to your computer via the Internet.

Firewall
popup blocker
spyware blocker
spam assassin

(A)

Q.100This high-speed Internet solution is installed using existing phone lines, called

T1
cable
DSL
Satellite

(C)