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Quizzes > High School Quizzes > Technology

Wired & Wireless LAN Practice Quiz

Boost Your Networking Skills with Quick Tests

Difficulty: Moderate
Grade: Grade 11
Study OutcomesCheat Sheet
Paper art promoting a LAN Clash trivia quiz for high school computer science students.

What does LAN stand for in computer networking?
Local Access Node
Local Area Network
Large Area Network
Long Area Network
LAN stands for Local Area Network. This type of network connects computers within a limited geographic area such as a school or office.
Which of the following cables is most commonly used for wired Ethernet networks?
Coaxial Cable
Twisted Pair Cable (e.g., Cat 5/6)
Fiber Optic Cable
HDMI Cable
Twisted pair cables, such as Cat 5 or Cat 6, are the most common choice for Ethernet networks due to their cost effectiveness and ease of installation. They support the data rates required for typical LAN environments.
Which device is primarily used to connect multiple wired devices within a LAN?
Access Point
Router
Switch
Modem
A switch is used to connect devices in a LAN by forwarding data based on MAC addresses. It creates dedicated communication paths for devices, reducing collisions.
What wireless standard is commonly used for high-speed WLAN connections in modern networks?
802.11g
802.11e
802.11ac
802.11b
The 802.11ac standard supports high-speed wireless communication and is widely adopted in modern WLANs. It significantly improves throughput compared to earlier standards.
Which of the following best describes a wireless access point?
A device that allows wireless devices to connect to a wired network
A device that routes data between different networks
A device that amplifies Wi-Fi signals to extend range
A device that regulates network traffic on a LAN
A wireless access point facilitates the connection of wireless devices to a wired LAN. It acts as a bridge between wireless clients and the network infrastructure.
What is the primary function of an Ethernet switch in a wired LAN?
It converts digital signals into analog signals
It routes traffic between different networks
It forwards data packets based on MAC addresses
It encrypts data packets for security
An Ethernet switch forwards data between devices on the same LAN by using MAC addresses. This minimizes collision and optimizes the flow of network traffic.
How does a wireless network typically reduce interference from external sources?
By using multiple channels and frequency bands
By using a single fixed channel
By using reduced transmission power
By automatically switching to wired mode
Wireless networks reduce interference by operating on multiple channels and frequency bands. This approach helps in selecting the clearest channels, ensuring a more stable connection.
Which of the following is a common security protocol used in wireless LANs to secure data transmissions?
WPA2
HTTP
SMTP
FTP
WPA2 is the industry standard for wireless security, providing robust encryption. It addresses vulnerabilities found in older protocols and is widely implemented in WLANs.
In a wired LAN, what is the main advantage of using fiber optic cables over copper cables?
Easier installation
Lower cost
Greater electrical conductivity
Higher bandwidth and longer distance transmissions
Fiber optic cables are capable of transmitting data over longer distances with higher bandwidth compared to copper cables. Their resistance to electromagnetic interference makes them ideal for high-performance networks.
What is the purpose of using a router in a network environment?
It amplifies network signals
It directs data between different networks
It stores network data temporarily
It connects wireless devices only
Routers are used to send data packets between different networks, such as linking a LAN to the internet. They assess packet destinations and determine the optimal route for delivery.
Which IEEE standard is commonly associated with wired Ethernet LANs?
IEEE 802.3
IEEE 802.15
IEEE 802.1X
IEEE 802.11
IEEE 802.3 defines the standards for wired Ethernet networks. It covers the physical and data link layer specifications, ensuring reliable and consistent network performance.
In a wireless network, what does the term 'SSID' refer to?
Signal Strength Indicator
System Security ID
Secure Service Internet
Service Set Identifier
SSID stands for Service Set Identifier and represents the network name broadcast by a wireless access point. It helps users distinguish between multiple available networks.
What type of topology is most commonly used in wired LAN environments today?
Star topology
Mesh topology
Bus topology
Ring topology
The star topology connects all network devices to a central hub or switch, making it the most common design in modern LANs. This layout simplifies management and fault isolation.
Which device in a wireless LAN is best suited for extending the range of Wi-Fi coverage?
Wireless router
Wireless repeater
Network switch
Firewall
A wireless repeater receives signals from an access point and retransmits them to extend the wireless coverage area. It is specifically designed to boost signal strength in areas that are hard to reach.
What is a common disadvantage of wireless LANs compared to wired LANs?
Limited scalability
Limited mobility
Susceptibility to interference
Higher installation cost
Wireless LANs are more prone to interference from external sources such as other electronic devices and physical obstacles. This interference can degrade signal quality and overall network performance.
How does full-duplex communication in a wired LAN improve network performance?
It allows simultaneous sending and receiving of data packets
It reduces collisions by halting transmissions
It encrypts both incoming and outgoing data
It doubles the cable length
Full-duplex communication lets devices transmit and receive data at the same time, effectively doubling the channel's capacity. This eliminates collisions inherent in half-duplex systems, leading to improved performance.
What is the significance of the hidden node problem in wireless networks?
It causes data collisions due to lack of signal detection between nodes
It decreases the signal range of access points
It increases the overall bandwidth available
It simplifies network security protocols
The hidden node problem occurs when devices are unable to detect each other's transmissions, leading to potential collisions. This issue degrades network performance and is often mitigated by implementing RTS/CTS protocols.
How does MIMO technology enhance the performance of wireless LANs?
It avoids interference by using spread spectrum techniques
It uses a single antenna for improved focused signal
It uses multiple antennas to transmit and receive data simultaneously
It converts wireless signals into wired signals
MIMO (Multiple Input Multiple Output) uses several antennas to transmit and receive data concurrently, thereby increasing data throughput and reliability. This technology significantly boosts the capacity and efficiency of wireless networks.
What troubleshooting step would be most effective if users experience intermittent connectivity on a wired network?
Update the wireless network drivers
Change the router's IP address
Reboot the wireless access points
Check physical cable connections and cable integrity
Intermittent connectivity in a wired network is frequently due to issues with physical connections. Inspecting cable integrity and ensuring secure connections is a fundamental troubleshooting approach.
In the design of a high-performance LAN, which method is most effective to reduce broadcast traffic?
Using a single flat network
Increasing the number of hubs
Disabling switches
Implementing VLAN segmentation
VLAN segmentation divides a network into smaller, isolated broadcast domains, thereby reducing unnecessary broadcast traffic. This technique enhances overall network efficiency by limiting the scope of broadcast messages.
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Study Outcomes

  1. Understand key components and standards of wired local area networks.
  2. Analyze wireless network protocols and potential interference issues.
  3. Apply troubleshooting techniques for diagnosing LAN connectivity problems.
  4. Compare performance and security features between wired and wireless LANs.

Wired & Wireless LAN Cheat Sheet

  1. Understand the differences between wired and wireless networks - Wired networks are like speedy, reliable subway trains, using Ethernet cables to deliver data with rock-solid stability and top-notch speed. Wireless networks let your devices roam free like adventurous drones, trading cables for radio waves - but don't let interference monsters slow you down! Explore wired vs wireless fun facts!
    2. revisionworld.com
  2. Learn about common wired network topologies - Dive into star, bus, ring, and mesh setups, each with its own personality: stars shine centrally, buses roll down single lines, rings loop in circles, and meshes weave redundancy like spiderwebs. Picking the right shape can boost performance and keep things running smoothly even when wires go wonky! Check out topologies
    3. csexams.com
  3. Explore wireless network configurations - Ad hoc mode is like a spontaneous dance-off where devices link up directly, while infrastructure mode sets up a choreographed stage using access points to keep the performance on track. Knowing when to freestyle or follow the beat helps you design a network that's both flexible and reliable. Explore wireless setups
    4. csexams.com
  4. Recognize the importance of network protocols - Protocols are the languages and etiquette rules computers use to chat without crashing the party, with TCP/IP acting as the VIP host ensuring every packet arrives on time and in order. Mastering these guidelines means smoother, error-free data exchanges across any network. Dive into protocols
    5. revisionworld.com
  5. Understand the role of network layers - The TCP/IP model stacks networking tasks into four tasty layers - Application, Transport, Internet, and Link - like a multi-layered pizza, with each slice handling specific toppings from end-user apps down to raw data transmission. This delicious design makes building and troubleshooting networks a piece of cake! Layer up your knowledge
    6. papacomputerscience.wordpress.com
  6. Familiarize yourself with network addressing - IP addresses are like home addresses for your data, guiding packets to the right building, while MAC addresses are the unique serial numbers stamped on every device's network card. Together, they guarantee that your information knocks on the right door every time! Get addressing savvy
    7. revisionworld.com
  7. Learn about wireless encryption methods - Protocols like WPA2 and AES lock down your Wi-Fi fortress with strong ciphers, keeping digital eavesdroppers at bay. Understanding these security superheroes is key to defending your network against sneaky hackers! Secure your signals
    8. flashcardmachine.com
  8. Understand the impact of bandwidth - Bandwidth is the width of your data highway - wider lanes mean more vehicles (i.e., packets) zooming through at once, while narrow lanes cause traffic jams and slowdowns. Balancing bandwidth needs keeps your network cruising at top speed! Measure your bandwidth
    9. thenational.academy
  9. Recognize the effects of interference - Electromagnetic interference (EMI) and radio frequency interference (RFI) are like noisy neighbors that jam your wireless signals, causing dropped connections and lag spikes. Spotting and managing these disturbances will keep your network noise-free and efficient! Tackle interference
    10. flashcardmachine.com
  10. Explore the advantages and disadvantages of different network types - Wired networks offer rock-solid security and stability but require more cabling, while wireless networks grant freedom of movement and easier setup at the cost of potential interference risks. Weighing these trade-offs helps you pick the perfect network for any scenario! Compare network types
    11. geeksforgeeks.org
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