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WorksheetsBSIT2102 PL Networking1 Tuando
Total questions: 50
Worksheet time: 22mins
Which of the following scenarios best illustrates the use of a digital signal in modern communication systems?
Analog voice transmission over a telephone line.
Text data storage in a computer's hard drive.
Radio broadcast using AM modulation.
Audio signal transmission over a traditional radio.
If a network technician wants to establish a network connection that allows simultaneous data transmission in both directions, which transmission mode should be used?
Simplex Mode
Half-duplex Mode
Full-duplex Mode
Parallel Mode
Which propagation method would be most effective for a communication system that needs to cover a large geographic area with minimal interference from atmospheric conditions?
Line of Sight Propagation
Wide Area Network
SkyWave Propagation
Space Wave Propagation
A company is considering using Bluetooth technology for inter-device communication. What should they be aware of regarding its frequency range?
Bluetooth operates at frequencies higher than 30 GHz.
Bluetooth uses a frequency range similar to that of Wi-Fi.
Bluetooth operates within the Very Low Frequency (VLF) range.
Bluetooth uses the 2.4 GHz frequency band.
A new technology is being implemented to reduce interference in a network by using both twisting and shielding techniques. What type of cable is likely being used?
Unshielded Twisted-Pair (UTP) Cable
Fiber Optic Cable
Coaxial Cable
Shielded Twisted-Pair (STP) Cable
Which type of signal would be most appropriate for representing voice communication in a traditional telephone system?
Digital Signal
Electrical Signal
Acoustic Signal
Video Signal
Which transmission type is characterized by sending data bits one after another over a single channel?
Parallel Transmission
Serial Transmission
Full-Duplex Transmission
Half-Duplex Transmission
A network engineer needs to choose a technology for high-speed data transmission with minimal signal degradation over long distances. What is the best option?
Shielded Twisted-Pair (STP) Cable
Unshielded Twisted-Pair (UTP) Cable
Fiber Optic Cable
Coaxial Cable
For a local area network (LAN) that requires flexibility and low cost, which type of cable would be most appropriate?
Fiber Optic Cable
Coaxial Cable
Unshielded Twisted-Pair (UTP) Cable
Shielded Twisted-Pair (STP) Cable
If a network communication protocol is experiencing significant delays and errors due to signal interference, what is the most likely issue with the network medium?
High signal amplitude
Low frequency range
Inadequate shielding or insulation
Excessive wavelength
Which wireless medium would be least affected by physical barriers such as walls or buildings?
Radio Waves
Infrared
Microwave
Bluetooth
When evaluating the performance of a wireless communication system that uses line-of-sight propagation, which factor is most critical?
The signal's frequency range
The type of modulation used
The alignment and placement of antennas
The length of the communication cable
What type of cable uses BNC-T connectors and is known for its flexibility?
Thicknet Cable
Coaxial Cable
Twisted Pair Cable
Thinnet Cable
What was the primary function of ARPAnet, the precursor to the Internet?
To provide commercial internet services
To connect military and research institutions
To facilitate video streaming
To manage social media platforms
Which type of wave is characterized by continuous variation in both amplitude and time?
Digital wave
Analog wave
Radio wave
Microwave
In network communication, what does the term 'bound media' refer to?
Communication through electromagnetic waves
Communication via cables and wires
Communication using satellite signals
Communication through infrared light
Which type of cable is most commonly used for connecting computers in a local area network (LAN)?
Coaxial Cable
Twisted Pair Cable
Fiber Optic Cable
Serial Cable
What is the primary characteristic of digital signals compared to analog signals?
Continuous variation in amplitude and time
Discrete (jumpy) states with fixed amplitude
Variable phase and frequency
Continuous frequency modulation
What does the term 'wavelength' refer to in the context of waves?
The height of the wave from the horizontal axis
The number of cycles per second
The horizontal distance between two consecutive points on a wave
The time required to complete one cycle
What does the term 'phase' describe in a wave?
The amplitude of the wave
The frequency of the wave
The position of the waveform relative to time zero
The distance between two consecutive peaks
Which type of signal would most likely be used for transmitting data in a computer network?
Acoustic Signal
Biological Signal
Electrical Signal
Video Signal
Which mode of transmission would be most suitable for a walkie-talkie?
Simplex Mode
Full-duplex Mode
Half-duplex Mode
Serial Transmission
In which type of wave propagation does the wave travel directly from the transmitter to the receiver without bending around the Earth's surface?
Ground Wave Propagation
SkyWave Propagation
Line of Sight Propagation
Space Wave Propagation
Which of the following is NOT a characteristic of fiber optic cables?
Core
Cladding
Shielding
Coating
Which frequency band is typically used for cellular telephone communications?
Very High Frequency (VHF)
Ultra-High Frequency (UHF)
Super High Frequency (SHF)
Extremely High Frequency (EHF)
In a WAN environment, which OSI layer is most responsible for ensuring packets arrive at their destination, even if they traverse different networks?
Data Link Layer
Network Layer
Transport Layer
Application Layer
Why might a Full Mesh topology be impractical for a large-scale WAN, despite its reliability?
It requires excessive cabling and physical ports
It limits the number of connected devices
It has poor reliability
It doesn't support redundancy
Which topology allows for quick scalability but risks the entire network if a main connection fails at the higher hierarchy level?
Tree Topology
Bus Topology
Star Topology
Hybrid Topology
A company requires fast fault isolation and minimal downtime in case of a node failure. Which topology would you recommend?
Bus Topology
Ring Topology
Mesh Topology
Star Topology
In which scenario would you choose a Hybrid topology over other types?
When combining different types of networks with varying performance and cost requirements
When building a small LAN network for home use
When a high level of redundancy is not necessary
When using a single type of cable for all connections
Which OSI layer should a network engineer focus on when addressing issues related to MAC addresses and Ethernet?
Physical Layer
Data Link Layer
Network Layer
Transport Layer
In which scenario would a Bus topology offer the most advantages over others?
In high-traffic networks requiring high-speed communication
In networks where cost and cable conservation are prioritized
In networks requiring high security
In large-scale WANs needing reliable redundancy
Why would a session-based application rely more on the Session Layer in the OSI model?
It defines how data is presented
It ensures reliable packet delivery
It manages dialogue control and synchronization
It performs routing
Which of the following topologies would you avoid in a security-sensitive environment?
Bus Topology
Mesh Topology
Star Topology
Tree Topology
If an organization is looking for a cost-effective topology that allows for easy network expansion and central management, which topology should they adopt?
Star Topology
Ring Topology
Mesh Topology
Bus Topology
What potential risk would you face with a Fat Access Point in a large enterprise WLAN network?
Difficulty in scaling and central management
Increased cost due to centralized control
High redundancy
Slow data transmission rates
A network uses Layer 2 switches extensively. Which OSI layer function is NOT a responsibility of these switches?
Forwarding based on MAC addresses
Data frame switching
Routing of IP packets
Access to end-user devices
Which device is crucial in translating signals from the ISP into a usable form for LAN devices in the home?
Switch
Router
Modem
Firewall
When addressing communication between two LANs using different protocols, which device is required?
Switch
Router
Gateway
Access Point
A company wants to implement a network with both connection-oriented and connectionless services. Which model best supports this?
OSI Model
TCP/IP Model
Hybrid Model
MPLS Model
If a network engineer is concerned with voltage levels, timing, and physical connectors, which OSI layer is their focus?
Network Layer
Physical Layer
Data Link Layer
Transport Layer
Which wireless technology is used in large enterprises to manage multiple access points with centralized control?
Fat AP
Fit AP
Switch
Router
Which OSI layer is most involved in translating different data formats to ensure communication compatibility between systems?
Session Layer
Presentation Layer
Transport Layer
Network Layer
Which layer of the TCP/IP model is responsible for determining the route of data packets across multiple networks?
Application Layer
Transport Layer
Internet Layer
Network Access Layer
Which network topology allows direct connections between specific nodes but without full interconnection?
Full Mesh Topology
Partial Mesh Topology
Tree Topology
Hybrid Topology
Which of the following is NOT a characteristic of digital signals compared to analog signals?
Discrete states
Continuous variation in amplitude
Fixed amplitude
Pulse width can be changed
Which frequency range is typically used for AM radio broadcasting?
300 Hz - 3 kHz
3 kHz - 30 kHz
30 kHz - 300 kHz
300 kHz - 3 MHz
What aspect of wave propagation is described by the frequency of the wave?
The height of the wave
The distance between two peaks
The number of waves per second
The delay of the wave relative to a reference point
In the OSI model, which layer provides services to end-user applications such as email or file transfer?
Application Layer
Presentation Layer
Session Layer
Network Layer
A radio station aims to establish a new transmission service that will provide continuous worldwide communication and broadcasting to a large audience, including remote and rural areas. The technical team is considering using different radio wave propagation methods to ensure consistent coverage and reliable signal reception.
Which of the following best describes why the Ground Wave (Surface) Propagation Method is a suitable choice for this service, considering its frequency ranges and applications?
Ground Wave Propagation Method is ideal for local communication within urban areas due to its ability to support high-frequency signals and provide clear, line-of-sight transmissions.
Ground Wave Propagation Method effectively supports worldwide communications with low-frequency signals ranging from 3 kHz to 300 kHz and is also suitable for broadcasting over medium frequencies from 300 kHz to 3 MHz, making it well-suited for covering remote and rural areas.
Ground Wave Propagation Method is most appropriate for high-speed data transmission over short distances, utilizing frequencies above 3 GHz, which offers high bandwidth but limited coverage.
Ground Wave Propagation Method is best for high-frequency communications within a single city, as it relies on ionospheric reflection for long-distance signal propagation.
