1. What is the primary function of a packet in network communication?
– A) To establish a physical connection between devices
– B) To transmit a finite string of information across a network
– C) To encrypt data for security purposes
– D) To store data permanently on the network
2. What information is included in the header of a packet?
– A) Only the destination address
– B) Only the source address
– C) Data about the packet’s origin, destination, and type
– D) Data exclusively about the packet’s size
3. Which protocol is known for being connection-oriented, ensuring packets are delivered in order and verifies no packet loss?
– A) HTTP
– B) TCP
– C) UDP
– D) IP
4. UDP protocol is best suited for which type of applications?
– A) Applications requiring high reliability and data integrity
– B) Applications where speed is more crucial than reliability
– C) Applications involving heavy data encryption
– D) Applications that do not use the internet
5. What does encapsulation involve in the context of network protocols?
– A) Removing headers from packets
– B) Embedding packets with different protocols inside each other
– C) Encrypting the entire data payload of a packet
– D) Stripping all protocol information from packets
6. What is the primary goal of using exponential backoff in network protocols?
– A) To increase the transmission speed
– B) To schedule retransmissions and reduce collisions
– C) To enhance data encryption
– D) To decrease network security
7. What is the purpose of segmentation in network communications?
– A) To prevent the overheating of routers
– B) To ensure data fits within the network’s Maximum Transmission Unit
– C) To encrypt data transmissions
– D) To expand the network’s capacity
8. Which of the following is a technique used in congestion control?
– A) Priority tagging
– B) Windowing
– C) Frequency adjustment
– D) Data mirroring
9. Why are data queues managed by routers in network communications?
– A) To increase data transmission rates
– B) To maximize data loss
– C) To control packet flow and minimize congestion
– D) To simplify protocol design
10. How does windowing contribute to congestion control in TCP networks?
– A) By reducing the number of packets sent to the network
– B) By adjusting the transmission rate based on receiver’s processing capacity
– C) By encrypting each data packet
– D) By doubling the data transmission rate
11. What is the primary purpose of a Local Area Network (LAN)?
– A) To connect devices over long distances
– B) To connect multiple devices within a small geographic area
– C) To provide an external internet connection to the world
– D) To increase the physical security of connected devices
12. Which technologies are commonly used to implement a LAN?
– A) Satellite and radio tower
– B) Ethernet and Wi-Fi
– C) Broadband and dial-up
– D) Fiber optics and coaxial cable
13. What are typical resources shared on a LAN?
– A) Software licenses and user data
– B) Printers, file storage, and Internet connections
– C) Electric power and lighting systems
– D) Security surveillance and alarms
14. What is a key advantage of using LANs?
– A) Low cost on international scale
– B) High-speed connections and enhanced security
– C) Unlimited geographic coverage
– D) High latency in data transfer
15. LAN coverage is typically restricted to which of the following scales?
– A) Global
– B) City-wide
– C) A small geographical area like a building or campus
– D) Across multiple cities