IL. Short Answer Questions 1. In what layers of OSI model the TCP/IP core protoc
ID: 3728681 • Letter: I
Question
IL. Short Answer Questions 1. In what layers of OSI model the TCP/IP core protocols operate? Explain what it means to say TCP is a connection-oriented subprotocol. 2. TCP provides to ensure that a node is not flooded with data. What other protocol exists at the Transport layer ofthe OSI model? 3. Explain why UDP is more efficient than TCP 4. IP (Intemet Protocol) belongs to what layer of the TCP/IP model? OSI model? ARP (Address Resolution Protocol) belong to what layer of the TCP/TP mode and the OSI model? What is ARP's function? 5. Describe the two versions of the IP protocol used on networks. Describe the addressing of each version. 6. What is a subnet mask? Describe its function?Explanation / Answer
1)Answer:
The TCP/IP protocol component that is installed in your network operating system is a series of interconnected protocols called the core protocols of TCP/IP.They operate in Transport or Network layers of OSI model.
The TCP/IP suite of protocols is the set of protocols used to communicate across the internet.
TCP is a connection -oriented subprotocol:
TCP is providing data delivery services while being located in Transport layer of OSI and TCP/IP models. TCP requires established connection before the data transmission begin, so it is called connection -oriented subprotocol. TCP is ensuring connection is established before transmission.
3)Answer:
UDP is faster than TCP, and the simple reason is because its nonexistent acknowledge packet (ACK) that permits a continuous packet stream, instead of TCP that acknowledges a set of packets, calculated by using the TCP window size and round-trip time (RTT).
6)Answer:
subnetmask:
A subnet mask is a 32-bit number used to differentiate the network component of an IP address by dividing the IP address into a network address and host address. It does so with bit arithmetic whereby a network address is bit multiplied by the subnet mask reveal the underlying subnetwork. Like the IP address, a subnet mask is written using the "dotted-decimal" notation.
A subnet mask is also known as an address mask.
Subnet masks are used to design subnetworks, or subnets, that connect local networks. It determines both the number and size of subnets where the size of a subnet is the number of hosts that can be addressed.
In simplistic terms, you can create a subnet mask by taking the 32-bit value of an existing IP address, choosing how many subnets you want to create or alternatively, how many nodes you need on each subnet, and then setting all subsequent network bits to "1" and host bits to "0". The resulting 32-bit value is your subnet mask.
A subnet mask also pinpoints the endpoints of the range of IP addresses for a subnet. In any given network, two host addresses are always reserved for special purposes. The "0" address becomes the network address or network identification and the "255" address is assigned as a broadcast address. These cannot be assigned to a host.