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Worksheetsتجيمعات1
Total questions: 106
Worksheet time: 53mins
What keyboard shortcut switches between programs on the desktop in most operating systems?
Alt + Tab
Ctrl + Tab
Shift + Tab
Alt + F4
Which software is primarily used to prepare interactive lessons?
Adobe Captivate
Adobe Illustrator
Google AdSense
Microsoft Excel
A motion graphics designer must have experience in which application?
Adobe Illustrator
Adobe Premiere Pro
Google Slides
Audacity
To earn ad revenue from YouTube, the channel must be connected to which service?
Google AdSense
Adobe Captivate
Google Scholar
Refer to the Venn diagram showing two overlapping sets. Which set operation is represented by highlighting all elements in B or C?
Union (B ∪ C)
Intersection (B ∩ C)
Complement of B
Symmetric difference of B and C
In school preparation for computer components, which format is commonly used to organize learning tasks?
Worksheets
Audio podcasts
Live streaming
Press releases
Which device functions as both an input and an output unit at the same time?
Touchscreen
Printer
Keyboard
Barcode reader
Which programming construct can contain different kinds of data together under one definition?
Class
Integer array
For loop
Boolean
How many groups (hextets) are in an IPv6 address?
8
6
4
2
Which social network is widely used for professional development and recruitment?
Seeing https at the start of a website address primarily ensures what?
Data encryption
Higher bandwidth
Local caching
Open-source licensing
Which Google product is best for searching academic articles and scholarly papers?
Google Scholar
Google Drive
Google Ads
Google Photos
Which curriculum unit focuses on the processor and computer internals?
Computer Architecture
Graphic Design
Digital Marketing
Networking Fundamentals
Using the table of phone models and brands provided, what is the normalization form applied when each field holds atomic values without repeating groups?
1NF
2NF
3NF
BCNF
In a full mesh network with 10 devices, how many cables (links) are required?
45
90
55
10
In a balanced binary search tree (BST), how many comparisons are needed to find the element with key 6 if the tree height allows it to be found in three steps?
3
2
4
6
What is the result of the binary subtraction 1100 − 0101?
0111
0011
1011
1000
Consider the following Java code snippet: public class Main { public static void main(String[] args) { int x = 0; int y = 0; for (int i = 0; i < 5; i++) { x += 2; y += i + 1; } System.out.println("x="+x+" y="+y); } } What is the printed output?
x=10 y=15
x=10 y=9
x=8 y=10
x=12 y=9
Consider the following Java code snippet: public class Main { public static void main(String[] args) { int[] n = new int[10]; int[] m = {1, 2, 3, 4, 5}; System.out.println(n.length + " " + m.length); } } What is the printed output?
10 5
5 10
10 10
5 5
If a test measures what it was intended to measure, what quality does it have?
Validity
Reliability
Objectivity
Usability
Which of the following is a reserved keyword in Visual Basic?
Dim
Let
Echo
Var
Which component would you use to detect conditions in a place and trigger an alert?
Sensors
Actuators
Displays
Speakers
Which development environment is primarily used for building iOS applications and supports multiple programming languages?
Xcode
Android Studio
NetBeans
Visual Studio Code
Arrange logical operator precedence from highest to lowest as commonly applied:
Not, And, Or
And, Or, Not
Or, And, Not
Not, Or, And
Which modern approach delivers educational content digitally and asynchronously?
E-learning
Field trips
Printed textbooks
Seminars only
Which type of cryptography uses a public key?
Asymmetric encryption
Symmetric encryption
Hashing
Steganography
Identify the labeled silver-colored component marked C in the figure.
USB Type-C connector
HDMI port
3.5 mm audio jack
RJ-45 plug
Which programming language is commonly used for web applications and server-side development?
Python
Scratch
COBOL
Fortran
Which educational coding platform is provided by a non-profit organization to teach programming?
Code.org
Khan Academy Math
Adobe Animate
LinkedIn Learning
Which hardware register stores the instructions that are currently being executed?
Instruction Register (IR)
Program Counter (PC)
Memory Address Register (MAR)
Stack Pointer (SP)
In Excel, the IF function belongs to which category of functions?
Logical functions
Text functions
Lookup and reference functions
Math and trigonometry functions
Which register is used in arithmetic and logical operations to store the operation’s result?
Accumulator
Instruction Register (IR)
Index Register
Base Register
Which networking device connects two different segments or components to allow communication between them?
Bridge
Repeater
Hub
Switch
Which type of malicious software replicates itself without attaching to a host program?
Worm
Trojan
Adware
Spyware
What term describes the gap between those who have the skills and financial ability to use the internet and those who do not?
Digital divide
Net neutrality
Bandwidth throttling
Network latency
Which database field type is used when very large amounts of text must be stored?
Long text
Integer
Boolean
Short text
In computational thinking, the practice of focusing on the problem while hiding unnecessary details is called what?
Abstraction
Iteration
Decomposition
Simulation
Which communication artifact combines text with images or tables to explain a concept clearly?
Infographic
Minutes of meeting
Plain text memo
Reference manual
Which cloud service model provides a complete virtualized infrastructure, including networking equipment, storage, and high-specification computing hardware?
IaaS
PaaS
SaaS
FaaS
TCP is classified as which type of protocol?
Connection-oriented
Connectionless
Stateless
Best-effort only
In Microsoft Word, when numbering uses Arabic letters such as (A, B, C) in Arabic script equivalents, what type of numbering is this?
Alphabetic numbering
Roman numerals
Arabic-Indic digits
Outline multilevel numbering
Which operating-system technique is commonly used to resolve starvation in priority scheduling?
Aging
Compaction
Swapping
Dirty bit
Which file format is appropriate for vector graphics on the web?
SVG
PNG
TIFF
BMP
In databases, an entity that cannot be uniquely identified by its own attributes and depends on another entity for identification is called what?
Weak entity
Strong entity
Supertype
Subtype
Which CPU scheduling algorithm typically yields the lowest average waiting time when job lengths are known?
Shortest Job First (SJF)
Round Robin (RR)
First-Come, First-Served (FCFS)
Priority (non-preemptive)
In a bus topology network containing 211 devices, if the main bus line fails, how many devices are affected?
All devices
Only the device nearest the fault
Half of the devices
Devices on one branch only
Which digital circuit implements the sum relation c = z + x + y for single-bit inputs with carry handling?
Full adder
Half adder
Decoder
Encoder
Which circuit has multiple inputs but only a single output used to select one of the inputs?
Multiplexer
Demultiplexer
Encoder
Decoder
Which platform is an example of a Massive Open Online Course (MOOC) provider?
Udemy
GitHub
Slack
Dropbox
What is the main purpose of a flowchart in programming and systems design?
To visually depict steps and processes in a clear, organized way
To compile source code into machine code
To encrypt data in transit
To benchmark hardware performance
Which technique verifies the authenticity and integrity of a sent message and supports non-repudiation?
Digital signature
Message authorization list
Message authentication code without keys
Parity check
Which online tool is cited as a distance-learning platform?
Wiziq
Photoshop
Blender
AutoCAD
Which software category is used for designing three-dimensional engineering graphics?
CAD
GIS
ERP
CRM
Using the keyboard, which shortcut opens the Run window in Windows to access Control Panel?
Ctrl+R
Win+R
Alt+R
Ctrl+Alt+R
In SQL, which command deletes a database?
REMOVE DATABASE
DELETE DATABASE
DROP DATABASE
ERASE DB
Which data structure is known for making insertions easy?
Array
Linked list
Binary search tree
Hash table
Consider the Java snippet: Car{} Car Car1 = new car(); What is Car1 in this code?
A class
An object
A package
A method
For the Java code: int x[] = {1,2,3}; int y = 0; for (int n = 0; n <= 1; n++) y += x[n]; System.out.println(y); What value is printed?
0
1
2
3
PHP is best classified as which type of language?
Compiled systems language
Scripting language
Query language
Markup language
In Java, what is the result of the expression 5%2?
0
1
2
2.5
In Java using integer division, what is the result of the expression 2/5?
0
1
2
2.5
Which operation removes an element from a stack?
push
pop
peek
new
Which SQL statement selects all rows where the column year equals '2007'?
INSERT INTO table VALUES ('2007')
UPDATE table SET year='2007'
SELECT * FROM table WHERE year='2007'
DELETE FROM table WHERE year='2007'
Which SQL statement creates a view named customer from a SELECT query?
MAKE VIEW customer FROM SELECT ...
CREATE VIEW customer AS SELECT ...
NEW VIEW customer SELECT ...
DEFINE VIEW customer USING SELECT ...
From the options (serial number of book; author name; book title), which is suitable as a primary key?
Author name
Book title
Serial number of the book
Publisher name
The shown table includes multi-valued attributes in one cell (e.g., color listed as “red green”). What is its normalization status?
Properly in 2NF
Properly in 1NF
Not in 1NF (unnormalized)
Fully normalized in 3NF
The displayed row (e.g., أحمد; 1001578614; 6841) is called what in database terminology?
Field
Record
Table
Schema
Using a public key and a private key together is called what?
Symmetric encryption
Asymmetric encryption
Hashing
Encoding
Which tool helps protect against DoS attacks on a network?
Firewall
Router
Compiler
Text editor
In English grammar, the marks used to denote text as a string in code are called what?
Parentheses
Brackets
Quotation marks
Semicolons
Typing CMD in Windows search aims to do what?
Open File Explorer
Launch Task Manager
Open Command Prompt
Open Control Panel
Identify the shape shown with a dashed outline.
Rectangle
Triangle
Ellipse
Circle
In a word processor, changing the page orientation to horizontal is called what?
Portrait
Landscape
Wide mode
Rotate page
Which specialized search engine is used for finding scholarly literature?
Bing
Google Scholar
DuckDuckGo
Firmware is stored on which type of non-volatile memory?
RAM
ROM
Cache
SSD
Which cable type is commonly used for projectors and televisions?
Twisted pair
Fiber optic
Coaxial
USB
Which browser add-on is used to block pop-up advertisements on web pages?
Grammarly
AdBlock
LastPass
Honey
Which protocol is preferred for protecting data through encryption on websites?
FTP
HTTP
SSL/TLS
SMTP
Which file extension is used for certain electronic books or compiled HTML help files?
.docx
CHM
.epub
Which application is suitable for students to create a documentary film?
Photoshop
Movie Maker
Audacity
Excel
In hexadecimal, the character D corresponds to which decimal value?
11
12
13
14
Convert binary number 1101 to decimal. Choose the correct result.
20
21
13
9
Contains on the address list the next address to execute after completing the current instruction.
PC
AB
ID
IR
Expansion slots are a component of which unit?
Interface
Processing
Memory
Storage
Stores the result of an arithmetic operation temporarily in which location?
Register
Data bus
Primary memory
Secondary memory
The standard specific to wireless networks is:
IEEE 802.11
IEEE 802.3
IANA 801
None of the above
The organization that oversees IP address allocation is:
IANA
ISO
IEEE
IETF
A network for a personal assistant and computer peripherals is:
PAN
CAN
LAN
MAN
A network used to connect bank branches within city limits is:
MAN
LAN
CAN
WAN
A network spanning multiple buildings is:
CAN
WAN
MAN
LAN
A network model in which the number of devices does not exceed 10 is:
Peer to Peer
Client and Server
Public network
Private network
A well-known network topology is:
Star
Bus
Mesh
Transmits the electrical signal in a single direction:
Ring
Bus
Mesh
Star
Which of the following is from wide-area wireless networks?
Cell phone
Wi‑MAX
Wi‑Fi
Bluetooth
Provides a centralized security system:
Client–Server
Peer to Peer
PAN
None of the above
A group of LAN networks is:
MAN
WAN
SAN
INTERNET
The network fails if the cable fails:
BUS
MESH
HYBRID
STAR
Select types of wired networks.
Coaxial cable
Fiber optic
Mobile wireless
None of the above
Established by setting a mechanism to control network use by parties:
Data Link layer
Network layer
Transport layer
Physical layer
A protocol that allows a computer to send and receive voice conversations over the Internet:
VOIP
VPN
VTP
VPPT
A device used to strengthen (amplify) a signal:
Amplifier
Router
Switch
Hub
PPP operates at which layer?
Data Link
Presentation
Session
Network
Defined as an internal local network:
Internet
Intranet
Extranet
None of the above
The device that connects two networks differing in addressing and message size is called:
Router
Switch
Firewall
All of the above
DNS stands for:
Domain Name System
Domain Network System
Domain Name Server
Domain Name Service
The protocol that provides a way for multiple computers on a shared network to use a single Internet connection is:
NAT
FTP
SSL
