NMK20403-PRACTISE QUIZ

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Which of the following are main components of a network architecture?

• Routers
• Firewalls
• Switches
• Transmission Media
• Clients

Answer explanation

Routers, switches, and transmission media are primary components of network architecture, managing data flow and connectivity.

Which of the following are types of transmission media?

• Twisted Pair Cable
• Coaxial Cable
• Fiber Optic Cable
• Wireless
• Ethernet

Answer explanation

Twisted pair, coaxial, fiber optic cables, and wireless are types of transmission media.

What are the primary functions of the main components of a network architecture?

• Routers: Direct data packets between different networks
• Switches: Connect devices within the same network and direct data packets within the network
• Transmission Media: Physical pathways for data transmission
• Servers: Provide resources and services to clients
• Firewalls: Monitor and control network traffic based on security rules

Answer explanation

Routers, switches, and transmission media have distinct roles in directing and transmitting data within a network.

How do the main components of a network architecture work together to provide network services?

• Routers manage data traffic between different networks, ensuring data reaches its destination.
• Switches handle communication within a single network, directing data packets to the correct devices.
• Transmission Media serves as the physical conduit for data to travel between network components.
• Servers host applications and data, making them accessible to clients over the network.
• Clients initiate requests for resources and services from servers.

Answer explanation

These components collaborate to ensure seamless data transmission and service provision across the network.

Identify All application that uses Transmission Control Protocol (TCP)

• HTTP
• DNS
• FTP
• VoIP
• SMTP

Answer explanation

HTTP, FTP, and SMTP use TCP for reliable communication; DNS and VoIP use UDP for speed.

Why do certain applications prefer Transmission Control Protocol (TCP)?

• Ensures data integrity
• Provides reliable data transfer
• Maintains data order
• Offers faster transmission speeds
• Requires less bandwidth

Answer explanation

TCP ensures reliable, ordered data transfer, making it suitable for applications requiring data integrity.

Why do certain applications prefer User Datagram Protocol (UDP)?

• Lower latency
• Faster data transmission
• Connectionless protocol
• Ensures data integrity
• Suitable for real-time applications

Answer explanation

UDP is preferred for its low latency, speed, and suitability for real-time applications like VoIP.

Check all key differences between circuit switching and packet switching in communication networks.

• Circuit switching establishes a dedicated path
• Packet switching divides data into packets
• Circuit switching is more efficient for voice communication
• Packet switching is more efficient for data transmission
• Packet switching requires a dedicated path

Answer explanation

Circuit switching uses a dedicated path for voice communication; packet switching divides data into packets, making it efficient for data transmission.

Why is packet switching more effective for modern internet usage, including streaming, browsing, and VoIP?

• More efficient use of network resources
• Allows multiple users to share the same network path
• Provides consistent and predictable network performance
• Supports dynamic routing of data packets
• Enables real-time communication without delays

Answer explanation

Packet switching efficiently utilizes network resources, allows shared paths, and supports dynamic routing, facilitating modern internet usage.