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WorksheetsComputer Network Quiz
Total questions: 60
Worksheet time: 20mins
Computer Network Architecture refers to:
Only the physical cables used in a network
Only the software design of the network
The physical and logical design of hardware, software, protocols, and media
The process of repairing faulty network devices
The two main types of network architecture are:
LAN and WAN
Client/Server and Peer-to-Peer
Star and Ring
Wired and Wireless
Which is a disadvantage of a Peer-to-Peer network?
It requires a dedicated administrator
Security is weaker since each device manages itself
It cannot connect more than 100 computers
It needs very expensive cabling
A small office with 8 computers and a low budget should use:
Client/Server network, because it requires a large server
Peer-to-Peer network, because it is cheaper and easier to set up
WAN, because it covers wide areas
MAN, because it connects cities
LAN is best described as:
A network covering a country or continent
A small network within a building or office
A personal device-to-device connection within 10 meters
A wireless connection for mobile phones
Which best compares LAN and WAN?
LAN is larger and more expensive, WAN is smaller and cheaper
LAN is smaller and cheaper, WAN covers larger areas but is costly
Both LAN and WAN have the same coverage but different speeds
LAN is only wireless, WAN is only wired
Using Bluetooth headphones connected to your smartphone is an example of:
LAN
PAN
MAN
WAN
In a Ring topology, data is transmitted using:
Collision detection (CSMA/CD)
Centralized hub switching
Token passing, where a frame circulates around the network
Random broadcast of messages
Which of the following is a feature of computer networks?
Data cannot be backed up
Software must be installed on every machine separately
Hardware and software can be shared among users
Communication speed is always slower than offline
A bank wants to connect its 44 branches across the country. Which network should it use?
LAN, because it is for small office buildings
PAN, because it is for personal devices
WAN, because it covers wide geographic areas
MAN, because it only connects within a city
Which network type is typically limited to a range of 10 meters?
LAN
PAN
MAN
WAN
In Bus topology, what is the main access method used?
Token passing
CSMA (Carrier Sense Multiple Access)
Centralized hub control
Direct client-to-client communication
Which of the following is NOT a reason why organizations need information?
To improve efficiency
To assist in decision-making
To randomly generate data
To enhance customer relationships
The difference between data and information is:
Data is raw facts; information is processed and meaningful
Data has meaning; information does not
Data is only numerical; information is only textual
Data is always useful; information is not
Which of the following characteristics ensures that information is error-free?
Flexible
Accurate
Timely
Simple
Information that can be used for multiple purposes by different departments is called:
Secure
Relevant
Flexible
Verifiable
Garbage In, Garbage Out (GIGO) principle emphasizes the importance of:
Accuracy of input data
Simplicity in representation
Timeliness of delivery
Flexibility of use
Which of the following is considered a cost of information?
Cost of communicating information
Benefits gained from decisions
Investor returns
Competitive advantage
In systems theory, an open system is one that:
Does not interact with its environment
Exchanges energy, materials, or information with its environment
Is sealed and self-contained
Always collapses due to entropy
What is the purpose of modeling in system analysis?
To ignore real-world complexities completely
To simplify and represent essential system properties for analysis
To replace all decision-making processes
To ensure perfect performance in real systems
Which type of feedback helps a system self-correct and maintain stability?
Positive feedback
Negative feedback
Random feedback
Delayed feedback
In the modeling process, formalization refers to:
Giving abstracted and idealized elements a concrete, manipulable form
Ignoring certain factors of the system
Assigning ideal attributes without measurement
Collecting raw, unprocessed data
Which of the following best describes an information system?
A set of hardware only used to process data
A combination of hardware, software, data, people, and processes used to manage and distribute information
A simple database used for storing facts
Any computer program used by an organization
Which of these components of an information system is intangible?
Hardware
Software
Keyboard
Flash drive
What distinguishes 'people' as a component of an information system?
They create hardware
They write software and manage processes, integrating technology into organizational use
They store data physically
They operate computers without interacting with processes
In the context of information systems, a process refers to:
The physical components of hardware
A series of steps designed to achieve a goal
Software instructions stored in memory
Data that is incomplete or irrelevant
Which of the following eras of computing focused on internal collaboration within organizations using networked PCs?
Mainframe
PC Revolution
Client-Server
Web 2.0
The term Web 2.0 is associated with:
Stand-alone computers performing calculations
Interactive websites allowing user participation and customization
IBM mainframes used for scientific computation
Basic word processing software only
According to Nicholas Carr in 'IT Doesn't Matter', information technology:
Always guarantees a competitive advantage
Should be managed like a commodity to reduce costs and risk
Is unnecessary in modern business
Replaces all business processes entirely
Which of the following best explains why information systems can bring competitive advantage?
They automate processes but do not influence business strategy
They improve efficiency, allow real-time decision-making, and enable innovative supply chain management
They replace the need for employees entirely
They serve only as a cost center with no strategic value
Which of the following best describes data?
Contextualized facts with meaning
Raw symbols or numbers without interpretation
Organized knowledge used for decision-making
A set of trends extracted from a warehouse
What is Data?
Raw facts and figures without context
Processed facts given meaning
The ability to apply experience in decision-making
Insights derived from analyzed information
What is Information?
Experience-based judgment
Data organized and given context
Raw numbers with no meaning
Knowledge applied in real-
What is Information?
Experience-based judgment
Data organized and given context
Raw numbers with no meaning
Knowledge applied in real-life situations
What is Knowledge?
Raw observations collected from the environment
Data converted into tables and charts
Insights gained from analyzing information
Wisdom shared through storytelling
What is Wisdom?
Simply storing more knowledge
Applying knowledge and experience to make sound decisions
Organizing data into useful reports
Memorizing factual information
In a relational database, rows represent:
Fields
Keys
Records
Columns
Which of the following best describes a DBMS?
A software tool for formatting documents
A program that manages the storage, retrieval, and analysis of data in databases
A device that stores raw data only without processing
A tool for browsing the Internet
Which of the following is an example of metadata?
"1992" as a birth year stored in a database
The field name "Year of Birth" and its data type (integer)
A student's actual GPA value
A list of customer orders
Which of the following illustrates data mining?
Loading raw sales data into a spreadsheet
Identifying hidden purchase patterns after analyzing millions of transactions
Designing a database table with student IDs
Deleting duplicate records from a dataset
What makes Big Data "big"?
It always refers to personal data from social media
Its size and complexity exceed the capacity of traditional database tools
It can only be stored in personal DBMS like Access
It is a synonym for metadata
The main purpose of a data warehouse is to:
Replace all operational databases
Store time-stamped, standardized copies of data for analysis
Delete irrelevant information from company databases
Serve as a temporary backup of files
Why do data mining and data brokers raise privacy concerns?
They only store data temporarily
They can combine information from multiple sources to profile individuals
They are unable to process metadata
They always require user consent before analyzing data
Business intelligence is best defined as:
Using data analysis to gain competitive advantage
Replacing human managers with AI systems
An internal-only system that excludes external data
Another term for a data warehouse
What is the primary goal of knowledge management in organizations?
To store only operational data in warehouses
To capture and organize company knowledge for reuse and decision-making
To replace databases with employee experiences
To delete outdated employee records
In building a data warehouse, the ETL process involves:
Encrypting, Tracking, and Loading data
Extracting data, Transforming it into a standard format, and Loading it into the warehouse
Editing Tables Locally in the database
Exporting Temporary Logs for analysis
Which of the following is an example of "something you are" in authentication?
Password
Smart card
Fingerprint
PIN
Using a PIN plus an RSA token is an example of:
Single-factor authentication
Biometric authentication
Multi-factor authentication
Password recycling
What is the main difference between ACL (Access Control List) and RBAC (Role-Based Access Control)?
ACL assigns permissions based on roles, while RBAC assigns them per user
ACL assigns permissions per user, while RBAC assigns permissions based on roles
Both assign permissions per user only
RBAC is less secure than ACL
In public key encryption, which key is kept secret?
Session key
Public key
Private key
Shared key
Which of the following is considered a poor password practice?
Changing passwords every 60-90 days
Using "123456" as a password
Using at least one upper-case, one number, and one special character
Avoiding dictionary words
Why should backup data be stored offsite?
To comply with encryption rules
To ensure data survives disasters at the main site
To prevent duplication
To reduce storage costs
What is the main purpose of a firewall?
To block viruses from infecting computers
To filter network packets based on security rules
To encrypt sensitive files
To back up company data
Which of the following best describes an IDS?
Prevents hackers from entering the system
Monitors network traffic and alerts on suspicious activity
Replaces the need for firewalls
Encrypts user data
The primary purpose of a VPN is to:
Encrypt backup data stored offsite access network
Allow secure remote access to a corporate network
Replace firewalls and IDS access network
Provide two-factor authentication access network
Which of the following best describes multi-factor authentication (MFA)?
Combining using multiple usernames to log data in or biometric scan
Combining two or more methods such as password or biometric scan
Encrypting data with multiple algorithms or biometric scan
Requiring frequent data password or biometric scan changes
In access control, which model assigns permissions based on organizational roles rather than individual users?
Access Control List (ACL)
Role-Based Access Control (RBAC)
Biometric Control Model (BCM)
Multi-Layer Access Model (MLAM)
Which of the following BEST represents confidentiality in information security?
Ensuring that data is available when needed
Preventing unauthorized access to data
Making sure data is accurate and consistent
Backing up files regularly
Integrity in the CIA triad refers to:
Ensuring protecting of usage data from being disclosed without permission
Ensuring data is accurate, consistent, and not tampered with
Ensuring making sure systems are available during peak usage
Ensuring encrypting all sensitive usage communications
Which scenario BEST illustrates availability?
A server is the company encrypts its files before sending them
A server is configured with redundancy to prevent downtime
A server is user logs in with a fingerprint scanner
A server and database is updated with corrected values
