NCTI TCP/IP Applications Exam
Elaboration *Q&A* (100% Correct) Latest
Update!!
What is the primary purpose of the TCP protocol in data transmission? To ensure reliable and
ordered delivery of data packets between devices.
Describe the role of the IP address in network communi...
NCTI TCP/IP Applications Exam
Elaboration *Q&A* (100% Correct) Latest
Update!!
What is the primary purpose of the TCP protocol in data transmission? To ensure reliable and
ordered delivery of data packets between devices.
Describe the role of the IP address in network communications. An IP address serves as a unique
identifier for a device on a network, facilitating the routing of data to and from that device.
Explain the difference between a public IP address and a private IP address. A public IP address is
accessible over the internet, while a private IP address is used within a local network and is not routable
on the internet.
What does the term "subnetting" refer to in networking? Subnetting is the process of dividing a
larger network into smaller, more manageable sub-networks, allowing for better organization and
security.
How does the Domain Name System (DNS) function in TCP/IP networking? DNS translates
human-readable domain names into IP addresses, enabling users to access resources on the internet
using familiar names.
What is the purpose of the Transmission Control Protocol (TCP) three-way handshake? The three-
way handshake establishes a reliable connection between two devices, ensuring both parties are ready
to transmit data.
Define the function of a router in a TCP/IP network. A router directs data packets between
different networks, determining the best path for data transmission.
What does the acronym DHCP stand for, and what is its role in networking? DHCP stands for
Dynamic Host Configuration Protocol, and it automatically assigns IP addresses to devices on a network.
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, Explain how NAT (Network Address Translation) enhances security in a network. NAT hides
internal IP addresses by translating them to a public IP address, making it difficult for external entities to
directly access internal devices.
What is the significance of the TCP/IP model's application layer? The application layer provides
protocols for end-user services and communication processes, enabling software applications to interact
over a network.
How does a firewall contribute to network security in TCP/IP networks? A firewall monitors and
controls incoming and outgoing network traffic based on predetermined security rules, protecting the
network from unauthorized access.
What is the purpose of the ICMP protocol in TCP/IP? The Internet Control Message Protocol
(ICMP) is used for sending error messages and operational information about network conditions.
Describe how packet switching works in TCP/IP networking. Packet switching involves breaking
data into smaller packets that are transmitted independently across the network and reassembled at the
destination.
What role does the ARP protocol play in network communications? Address Resolution Protocol
(ARP) maps IP addresses to physical MAC addresses, enabling communication within a local network.
What does the term "bandwidth" refer to in the context of networking? Bandwidth is the
maximum rate of data transfer across a network connection, typically measured in bits per second (bps).
Explain how TCP achieves flow control during data transmission. TCP uses techniques like
windowing to manage the rate of data transmission, preventing overwhelming the receiver and ensuring
efficient data flow.
What is the difference between TCP and UDP in terms of reliability? TCP is a connection-oriented
protocol that guarantees reliable delivery, while UDP is connectionless and does not ensure packet
delivery.
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