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WorksheetsCSI106
Total questions: 60
Worksheet time: 30mins
Different sets of bit patterns have been designed to represent text symbols. Each set is called a___ ?
bit patterns
binary
C. code
binary text file
The queue operation: "queue (queueName)" is used to___
Delete queue
Check status of queue
Create an empty queue
Insert queue
The device manager will be tracking every device constantly to ensure that the device is___
Ready
Finished
Functioning property
A. Running
In ___ cryptography, everyone has access to everyone's public key.
Symmetric-key
Asymmetric-key
Secret-key
Private-key
In the system development process, structure charts are tools used in the ___ phase.
Analysis
Design
Implementation
Testing
___ is a computer program that does perform a legitimate task but which also contains code to carry out malicious attacks such as deleting or corrupting files
DoS
Trojan horses
Worms
Viruses
What is the analysis process in the implementation phase that will use a program as an active agent that manipulates active object?
Procedure-oriented analysis
Structured analysis
Classical analysis
A. Object-oriented analysis
A stack is a ___ structure.
FIFO
LIFO
DIFO
SIFO
Which of the following is the user programmed semiconductor memory?
SRAM
DRAM
EPROM
All of the others
None of the others
___is usually privately owned, limited in size and connects some hosts in a single office, building, or campus.
LAN
WAN
Internet
Network
___is a method in which each statement in the software is executed at least once.
Basis path testing
Condition testing
. Loop testing
Boundary testing
Each row in a relation is called ___
An attribute
A tuple
union
A. An attitude
Which type of computers use the 8 bit code called EBCDIC?
Minicomputers
Microcomputers
Mainframe computers
Supercomputers
None of the others
A ___ causes an action to be performed by the program. It translates directly into one or more executable computer instructions.
Expression
Operator
Variables
Input/output
The ___ is a computer subsystem that performs operations on data.
CPU
Memory
I/O hardware
Bus subsystem
We use a ___ search for an unordered list.
Sequential
Binary
Bubble
Insertion
A ___ is a nonactive set of instructions stored on disk (or tape). It may or may not become a
Program
Job
Process
Task
A computer language that is written in binary codes only is___
machine language
C.
C#
pascal
None of the others
In a three-level DBMS architecture, the ___ level determines where data is actually stored in devices
External
Conceptual
Internal
Physical
Use a simple right shift operation on the bit pattern 1001 1000.
1001 1001
1001 1000
0100 1101
0100 1100
In a computer, the ___ subsystem performs calculations and logical operations.
ALU
Input/output
Memory
Control unit
Which of following that describe to protect data that information needs to be protected from t change?
Confidentiality
Integrity
Availability
Masquerading
___who create algorithms to break existing internet networks so as to solve the loopholes in them
Black Hat Hacker
Grey Hat Hacker
Red Hat Hacker
Blue Hat Hacker
In physical layer, an ___ has infinitely many levels of intensity over a period of time
Analog signals
Electromagnetic signals
Digital signals
Electronic signals
In ___ cryptography symbols are permuted or substituted; in asymmetric-key cryptography numbers are manipulated
Symmetric-key
Asymmetric-key
Public-key
Private-key
Of the various database models, the ___ model is the most prevalent today
Hierarchical
Networ
Relational
Linked list
___ is a basic algorithm that adds a list of numbers
Summation
Product
Smallest
Largest
In the modulo division hashing assume we have kev = 614 file sizo = 307 The result of address is___
001
002
003
004
The ___ is a pointer that identifies the next element in the linked list.
Link
Node
Array
Data
When the ciphertext is received the receiver must transform the ciphertext back into the plaintext-this is___
Plain text
Cipher text
Encryption
Decryption
In ___ sort, the smallest item from the unsorted list is swapped with the item at the beginning of the unsorted list
Selection
Bubble
Insertion
Every
At the transport layer, TCP groups a number of bytes together into a packet called a___
Frame
Bit pattern
Segment
Packet
The ability of a computer system to remain operational despite various failures is
Relation
Schema
Resilience
Versatility
None of the others
Images are stored in computers using ___ techniques?
Raster graphics and bit map
Vector graphics and bit map
True-color and raster graphics
Index-color and vector graphics
Bit map
A ___ controller is a high-speed serial interface that transfers data in packets
SCSI
USB
FireWire
USB and FireWire
Which of the following representations is erroneous?
erroneous: sai (adj)
(10211)2
(342)8
(EEE)16
145
When a sequential file is updated, the ___ file contains a list of all errors occurring during the update process.
New master
Old master
Transaction
Error report
Defining the users, requirements, and methods is part of the ___ phase.
Analysis
Design
Implementation
A. Testing
A ___ is a storage device that can undergo multiple writes and erasures.
CD-ROM
CD-R
CD-RW
A. CD-RR
The first microprocessors produced by Intel Corpn. and Texas Instruments were used primarily to control small___
Microwave ovens
A. Washing machines
Calculators
Personal computers
Robotics
A number which is stored and processed but not in the standard exponential form is called
Floating point number
Fixed point number
Octal number
Decimal number
A. None of the others
In an inorder traversal of a binary tree, the root is processed___
First
Second
Last
Two times
___ refers to the ability to move data and/or a system from one platform to another and to reuse code.
Maintainability
Operability
Correctability
Transferability
A data structure can be___
Only an array
Only a record
Only a linked list
An array, a record, or a linked list
An error in computer data is called
Chip
Bug
Bit
Byte
None of the others
Use a simple right shift operation on the bit pattern 1001 1000.
1001 1001
1001 1000
0100 1101
0100 1100
If personal information about each employee in a company is stored in a file we can use retrieve each record at the end of the month to print the paychecks
Hashed file
Sequential file
EOF
Index file
Each element in a record is called ___
A variable
An index
A field
A node
What is language of procedural paradigm that is high level language and also has some low-level instructions?
COBOL
C
Pascal
Ada
An IPv4 address is a ___ to the Internet address that uniquely and universally defines the connection of a host or a router
32-bit
64-bit
128-bit
None of others
When converting a decimal fraction to base b, we repeatedly ___ b,
Divide by
Multiply by
Add to
Subtract from
___ is a declarative language used on relational databases
PDQ
SQL
LES
PBJ
In a positional number system with base b, we can always find the number of digits of an integer. So how many digits can we find in the decimal number 20 in octal system?
1
2
3
4
None of the others
The 2's complement number of 110010 is
001101
110011
010011
001110
None of the others
___ is an English-language-like representation of code.
A UML diagram
A program
Pseudocode
An algorithm
In the storing audio, if the signal is changing rapidly, we need more samples. It has been shown that a 40000 samples per second is good enough to reproduce an audio signal, of
Quantization
Sampling rate
Encoding
Bit depth
The union database operation is taking two relations and creating a new relation. What is a result of this operation?
Neither the first relation nor the second
Both of the first relation and the second.
The first relation but not the second.
The second but not the first
___ is a protocol for accessing and transferring documents on the WWW
FTP
SMTP
TELNET
HTTP (HyperText Transfer Protocol)
In ___ the program is divided into pages and it does not require that the entire program be in memory for execution
Partitioning
Paging
Demand paging
Demand segmentation
A group includes ___ bits in the binary system are represented as one digit in the hexadecimal system.
1
2
3
4
None of the others
