Question: Who Generates Logical Address?

What happens if 2 devices have the same MAC address?

If two devices have the same MAC Address (which occurs more often than network administrators would like), neither computer can communicate properly.

Duplicate MAC Addresses separated by one or more routers is not a problem since the two devices won’t see each other and will use the router to communicate..

What is effective address?

The effective address is the location of an operand of the instruction, since the operand is the data to be accessed. Immediate instructions use their operand to hold the data needed to complete the instruction.

What is a real address?

In computing, a physical address (also real address, or binary address), is a memory address that is represented in the form of a binary number on the address bus circuitry in order to enable the data bus to access a particular storage cell of main memory, or a register of memory mapped I/O device.

Who assigns a logical address?

Logical Address is generated by CPU while a program is running. The logical address is virtual address as it does not exist physically, therefore, it is also known as Virtual Address. This address is used as a reference to access the physical memory location by CPU.

Why do we need logical address?

Logical address is used to reference to access the physical memory location. A logical address is generated so that a user program never directly access the physical memory and the process donot occupies memory which is acquired by another process thus corrupting that process.

How do you convert a logical address to a linear address?

To convert a Segment:Offset (logical) address to a linear address, you just multiply the Segment by 16 and add the Offset. I’ve also seen it declared in several places that “If Paging is disabled in the CPU, the linear address and physical address are the same”, or words to that effect.

Why we need mapping from logical address to physical address space?

This is to allow the logical address space of a process to be non-contiguous, which makes the process to be allocated physical memory. Logical address space of a process can be non-contiguous; process is allocated physical memory.

How logical address is translated into physical address?

The translation between logical addresses and physical addresses is specified by a table structure. A logical address requested by the execution unit is translated by the memory management unit into a physical address which is then used to access a location in physical memory.

Why IP address is called logical address?

IP Address works at the network layer of OSI model (actually the IP layer of TCP/IP model). This is a logical address (and not the embedded hardware address) which is assigned by the Network administrator or Internet service provider. Hence IP address may change each time you connect with the Internet.

How do I find a logical address?

we know that logical address spaces is = total no of bits required to represent total no of pages + bits required to map page offset . Hence total bits required = 3 (because total no of pages is 8 and to represent you need three bits) + 10 (page offset is 1024 so you need 10 bits) = 13 bits all total.

What is the difference between a port address a logical address and a physical address?

The port address is used to identify the particular application running on the destination machine. Logical Address: An IP address of the system is called logical address. This address is the combnation of Net ID and Host ID. … The address of the NIC is called Physical address or mac address.

How do I find IP address with MAC address?

Android Phones/TabletsLocate and tap the Settings app.Scroll to find, then tap About Device (on some phones it will say About Phone).Tap Status.The MAC address is listed under WiFi Address.

Is logical address same as IP address?

Every network device has two types of addresses, one called the logical address — in most cases this is the IP address — and the other one being the physical address — also known as the MAC address. The IP address is an address bound to the network device, i.e., computer, via software.

Is IP address same as MAC address?

The main difference between MAC and IP address is that, MAC Address is used to ensure the physical address of computer. It uniquely identifies the devices on a network. While IP address are used to uniquely identifies the connection of network with that device take part in a network.

What is meant by logical address?

In computing, a logical address is the address at which an item (memory cell, storage element, network host) appears to reside from the perspective of an executing application program. A logical address may be different from the physical address due to the operation of an address translator or mapping function.

Is MAC address physical or logical?

MAC Address is a physical address. IP Address is a logical address.