Assignment 2 ITC431 - Networks and
Communications
Sidharth Arangadan House Jayarajan 11538368
1
1. Define and explain the following terminologies:
Computer networks: A computer network is a group of computer systems or other hardware computing devices which are linked together through a channel called communication channel to establishing communication between wide number of users and also for resource sharing between them.
Personal area networks (PANs): A personal area system - PAN - is a machine system sorted out around a distinctive individual. Personal area networks commonly include a portable machine, a cell and/or a handheld figuring gadget, for example, a PDA. You can utilize these networks to exchange documents including email and …show more content…
Over such little separations, advanced information may be transmitted as steer, two-level electrical indicators over straightforward copper conveyors. With the exception of the quickest machines, circuit fashioners are not extremely worried about the state of the conductor or the simple attributes of sign transmission. Frequently, in any case, information must be sent past the nearby hardware that constitutes a machine. As a rule, the separations included may be tremendous. Shockingly, as the separation between the wellspring of a message and its terminus expands, correct transmission gets to be progressively troublesome. This results from the electrical mutilation of indicators going through long channels, and from commotion added to the indicator as it engenders through a transmission medium. Albeit a few safety measures must be taken for information trade inside a machine, the most serious issues happen when information is exchanged to gadgets outside the machine's hardware. For this situation, mutilation and commotion can get to be severe to the point that data is lost. Data Correspondences concerns the transmission of advanced messages to gadgets outside to the message source. "Outer" gadgets are …show more content…
A modified NRZ code known as enhanced-NRZ (E-NRZ) is sometimes used for high-density magnetic tape recording. E-NRZ encoding entails separating the NRZ-L data stream into 7-bit words; inverting bits 2, 3, 6, and 7; and adding one parity bit to each word. The parity bit is chosen to make the total number of 1s in the 8-bit word an odd count. What are the advantages of ENRZ over NRZ-L? Disadvantages?
The advantages of ENRZ over NRZL are as follows,
The ENRZ provides the minimum transition rate which reduces the DC component
The ENRZ provides the minimum of one transition for every 14 bits which reduces the synchronization problem
The parity bits provides the error check
The disadvantages are as follows
Complexity
Extra parity bit overhead.
3. Two companies consider pooling resources to perform a joint venture. The CEO of the first company meets with his legal team, and the legal team consults a number of middle managers in the proposed product area. Meanwhile, the CEO of the first company sends an email to the CEO of the second company to offer a couple suggestions concerning the joint venture. Does this scenario follow the OSI model?
Communications
Sidharth Arangadan House Jayarajan 11538368
1
1. Define and explain the following terminologies:
Computer networks: A computer network is a group of computer systems or other hardware computing devices which are linked together through a channel called communication channel to establishing communication between wide number of users and also for resource sharing between them.
Personal area networks (PANs): A personal area system - PAN - is a machine system sorted out around a distinctive individual. Personal area networks commonly include a portable machine, a cell and/or a handheld figuring gadget, for example, a PDA. You can utilize these networks to exchange documents including email and …show more content…
Over such little separations, advanced information may be transmitted as steer, two-level electrical indicators over straightforward copper conveyors. With the exception of the quickest machines, circuit fashioners are not extremely worried about the state of the conductor or the simple attributes of sign transmission. Frequently, in any case, information must be sent past the nearby hardware that constitutes a machine. As a rule, the separations included may be tremendous. Shockingly, as the separation between the wellspring of a message and its terminus expands, correct transmission gets to be progressively troublesome. This results from the electrical mutilation of indicators going through long channels, and from commotion added to the indicator as it engenders through a transmission medium. Albeit a few safety measures must be taken for information trade inside a machine, the most serious issues happen when information is exchanged to gadgets outside the machine's hardware. For this situation, mutilation and commotion can get to be severe to the point that data is lost. Data Correspondences concerns the transmission of advanced messages to gadgets outside to the message source. "Outer" gadgets are …show more content…
A modified NRZ code known as enhanced-NRZ (E-NRZ) is sometimes used for high-density magnetic tape recording. E-NRZ encoding entails separating the NRZ-L data stream into 7-bit words; inverting bits 2, 3, 6, and 7; and adding one parity bit to each word. The parity bit is chosen to make the total number of 1s in the 8-bit word an odd count. What are the advantages of ENRZ over NRZ-L? Disadvantages?
The advantages of ENRZ over NRZL are as follows,
The ENRZ provides the minimum transition rate which reduces the DC component
The ENRZ provides the minimum of one transition for every 14 bits which reduces the synchronization problem
The parity bits provides the error check
The disadvantages are as follows
Complexity
Extra parity bit overhead.
3. Two companies consider pooling resources to perform a joint venture. The CEO of the first company meets with his legal team, and the legal team consults a number of middle managers in the proposed product area. Meanwhile, the CEO of the first company sends an email to the CEO of the second company to offer a couple suggestions concerning the joint venture. Does this scenario follow the OSI model?