BT0076, TCP/IP

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ASSIGNMENT

PROGRAM	BSC IT
SEMESTER	3RD
SUBJECT CODE & NAME	BT0076, TCP/IP
CREDIT	4
BK ID	B0965
MAX.MARKS	60

Note: Answer all questions. Kindly note that answers for 10 marks questions should be approximately of 400 words. Each question is followed by evaluation scheme.

Q.1 Draw the diagram of TCP/IP protocol suit. Explain network interface layer and Internet layer.

Answer: - The acronyms TCP and IP stand for Transmission Control Protocol and Internet Protocol, respectively. Thus, you could be forgiven for thinking

Q.2 Define and explain address resolution protocol (ARP). Describe ARP packet generation.

Answer: - The Address Resolution Protocol (ARP) is a telecommunication protocol used for resolution of network layer addresses into link layer addresses, a critical function in multiple-access networks. ARP was defined by RFC 826 in 1982. It is Internet Standard STD 37. It is also the name of the program for manipulating these addresses in most operating

Q.3 Define user datagram. Explain UDP datagram format and UDP Application Programming Interface.

Answer: - The User Datagram Protocol (UDP) is one of the core members of the Internet protocol suite (the set of network protocols used for the Internet). With UDP, computer applications can send messages, in this case referred to as datagrams, to other hosts on an Internet Protocol (IP) network without prior communications to set up special transmission channels or data paths. The protocol was designed by David P. Reed in 1980 and formally

Q.4 Write note on:

 Answer: - The Hierarchical Namespace:-

The DNS hierarchical namespace is a map of how DNS servers determine what IP address to connect to given a URL.

Registrars: - Registars such as VeriSign, the operator of the .com and .net top-level domains, let any company, organization, or private individual register a TLD for any number of years. The domain name is then added to the Whois directory, and may

When connecting to a host (using an SSH client, for example), you must specify the FQDN. The DNS server then resolves the hostname to its IP address by looking at its DNS table. The host is contacted and you receive a login prompt.

Q.5 Define Remote Execution Command Protocol (REXEC and RSH). Explain its principle of operation.

Answer:- REXECD (Remote EXEcution Command Daemon) is a server that allows execution of the REXEC or RSH (Remote Shell Protocol) command from a remote host over the TCP/IP network. The client function is performed by the REXEC process.

Principle of Operation:- REXECD is a server (or daemon). It handles commands issued by foreign hosts, and transfers orders to slave virtual machines for job execution. The daemon performs automatic login, and user authentication when

Q.6 Explain the following versions of SNMP:

Answer: - SNMPv1:- Simple Network Management Protocol (SNMP) is an "Internet-standard protocol for managing devices on IP networks". Devices that typically support SNMP include routers, switches, servers, workstations, printers, modem

2. SNMPv2:- SNMPv2 currently exists in at least three flavors, SNMPv2c, SNMPv2u, and SNMPv2*. SNMPv2c is community-based and is specified in RFCs 1902 through 1908. SNMPv2u is user-based and is specified in RFCs 1909 and 1910.

3. SNMPv2 entity: - A SNMPv2 entity is an actual process which performs network management operations by generating and/or responding to SNMPv2 protocol messages in the manner specified in . When a SNMPv2 entity is acting as a

4. SNMPv2 party: - A SNMPv2 party is a conceptual, virtual execution environment whose operation is restricted to an administratively defined subset of all possible operations of a particular SNMPv2 entity Whenever a SNMPv2 entity processes a SNMPv2 message, it does so by acting as a SNMPv2 party and is thereby restricted to the set

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