OS · Memory Management interview questions

1. A.the actual location in main memory referenced by the memory unit
2. B.a scheme dividing memory into fixed-size frames and processes into equal-size pages
3. C.a per-process structure mapping each virtual page number to its physical frame number
4. D.a trap raised when a process accesses a page that is not currently in physical memory

Answer + AI explanation with a free account

1. A.Page table
2. B.Paging
3. C.Translation Lookaside Buffer
4. D.Memory Management Unit

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1. A.Paging — loading a page into memory only when it is first referenced rather than all at once
2. B.Paging — a per-process structure mapping each virtual page number to its physical frame number
3. C.Paging — a scheme dividing memory into fixed-size frames and processes into equal-size pages
4. D.Paging — moving an entire process between main memory and a backing store on disk

Answer + AI explanation with a free account

1. A.free memory split into small non-contiguous holes too scattered to satisfy a request
2. B.wasted space inside an allocated block when the request is smaller than the fixed unit given
3. C.a scheme dividing a process into variable-size logical segments like code, stack and data
4. D.a trap raised when a process accesses a page that is not currently in physical memory

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1. A.Segmentation
2. B.Virtual memory
3. C.Internal fragmentation
4. D.External fragmentation

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1. A.Segmentation — a small fast cache holding recent page-to-frame translations to speed up address lookup
2. B.Segmentation — an abstraction letting a process use an address space larger than the physical RAM available
3. C.Segmentation — the virtual address generated by the CPU that must be mapped to a real location
4. D.Segmentation — a scheme dividing a process into variable-size logical segments like code, stack and data

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1. A.a scheme dividing memory into fixed-size frames and processes into equal-size pages
2. B.the hardware that translates logical addresses into physical addresses at run time
3. C.a per-process structure mapping each virtual page number to its physical frame number
4. D.moving an entire process between main memory and a backing store on disk

Answer + AI explanation with a free account

1. A.Page table
2. B.Translation Lookaside Buffer
3. C.Paging
4. D.Memory Management Unit

Answer + AI explanation with a free account

1. A.Page table — the virtual address generated by the CPU that must be mapped to a real location
2. B.Page table — a per-process structure mapping each virtual page number to its physical frame number
3. C.Page table — a small fast cache holding recent page-to-frame translations to speed up address lookup
4. D.Page table — wasted space inside an allocated block when the request is smaller than the fixed unit given

Answer + AI explanation with a free account

1. A.a small fast cache holding recent page-to-frame translations to speed up address lookup
2. B.a scheme dividing a process into variable-size logical segments like code, stack and data
3. C.a per-process structure mapping each virtual page number to its physical frame number
4. D.the virtual address generated by the CPU that must be mapped to a real location

Answer + AI explanation with a free account

1. A.Page table
2. B.Internal fragmentation
3. C.Translation Lookaside Buffer
4. D.Page fault

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1. A.Translation Lookaside Buffer — wasted space inside an allocated block when the request is smaller than the fixed unit given
2. B.Translation Lookaside Buffer — a small fast cache holding recent page-to-frame translations to speed up address lookup
3. C.Translation Lookaside Buffer — an abstraction letting a process use an address space larger than the physical RAM available
4. D.Translation Lookaside Buffer — the virtual address generated by the CPU that must be mapped to a real location

Answer + AI explanation with a free account

1. A.free memory split into small non-contiguous holes too scattered to satisfy a request
2. B.wasted space inside an allocated block when the request is smaller than the fixed unit given
3. C.the virtual address generated by the CPU that must be mapped to a real location
4. D.a per-process structure mapping each virtual page number to its physical frame number

Answer + AI explanation with a free account

1. A.Internal fragmentation
2. B.Swapping
3. C.Logical address
4. D.External fragmentation

Answer + AI explanation with a free account

1. A.Internal fragmentation — a scheme dividing a process into variable-size logical segments like code, stack and data
2. B.Internal fragmentation — a per-process structure mapping each virtual page number to its physical frame number
3. C.Internal fragmentation — wasted space inside an allocated block when the request is smaller than the fixed unit given
4. D.Internal fragmentation — loading a page into memory only when it is first referenced rather than all at once

Answer + AI explanation with a free account

1. A.the hardware that translates logical addresses into physical addresses at run time
2. B.wasted space inside an allocated block when the request is smaller than the fixed unit given
3. C.free memory split into small non-contiguous holes too scattered to satisfy a request
4. D.splitting a large page table into a hierarchy of tables to avoid keeping it all in memory

Answer + AI explanation with a free account

1. A.External fragmentation
2. B.Internal fragmentation
3. C.Multilevel paging
4. D.Memory Management Unit

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1. A.External fragmentation — free memory split into small non-contiguous holes too scattered to satisfy a request
2. B.External fragmentation — wasted space inside an allocated block when the request is smaller than the fixed unit given
3. C.External fragmentation — a scheme dividing memory into fixed-size frames and processes into equal-size pages
4. D.External fragmentation — an abstraction letting a process use an address space larger than the physical RAM available

Answer + AI explanation with a free account

1. A.the virtual address generated by the CPU that must be mapped to a real location
2. B.splitting a large page table into a hierarchy of tables to avoid keeping it all in memory
3. C.an abstraction letting a process use an address space larger than the physical RAM available
4. D.loading a page into memory only when it is first referenced rather than all at once

Answer + AI explanation with a free account

1. A.Virtual memory
2. B.Page table
3. C.Logical address
4. D.Internal fragmentation

Answer + AI explanation with a free account

1. A.Virtual memory — the virtual address generated by the CPU that must be mapped to a real location
2. B.Virtual memory — an abstraction letting a process use an address space larger than the physical RAM available
3. C.Virtual memory — the actual location in main memory referenced by the memory unit
4. D.Virtual memory — a per-process structure mapping each virtual page number to its physical frame number

Answer + AI explanation with a free account

1. A.the hardware that translates logical addresses into physical addresses at run time
2. B.a per-process structure mapping each virtual page number to its physical frame number
3. C.loading a page into memory only when it is first referenced rather than all at once
4. D.a trap raised when a process accesses a page that is not currently in physical memory

Answer + AI explanation with a free account

1. A.Physical address
2. B.Demand paging
3. C.Logical address
4. D.Translation Lookaside Buffer

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1. A.Demand paging — loading a page into memory only when it is first referenced rather than all at once
2. B.Demand paging — an abstraction letting a process use an address space larger than the physical RAM available
3. C.Demand paging — a small fast cache holding recent page-to-frame translations to speed up address lookup
4. D.Demand paging — the actual location in main memory referenced by the memory unit

Answer + AI explanation with a free account

1. A.a scheme dividing a process into variable-size logical segments like code, stack and data
2. B.wasted space inside an allocated block when the request is smaller than the fixed unit given
3. C.a scheme dividing memory into fixed-size frames and processes into equal-size pages
4. D.a trap raised when a process accesses a page that is not currently in physical memory

Answer + AI explanation with a free account

1. A.Virtual memory
2. B.Page table
3. C.Segmentation
4. D.Page fault

Answer + AI explanation with a free account

1. A.Page fault — an abstraction letting a process use an address space larger than the physical RAM available
2. B.Page fault — a trap raised when a process accesses a page that is not currently in physical memory
3. C.Page fault — the virtual address generated by the CPU that must be mapped to a real location
4. D.Page fault — moving an entire process between main memory and a backing store on disk

Answer + AI explanation with a free account

1. A.moving an entire process between main memory and a backing store on disk
2. B.a trap raised when a process accesses a page that is not currently in physical memory
3. C.free memory split into small non-contiguous holes too scattered to satisfy a request
4. D.an abstraction letting a process use an address space larger than the physical RAM available

Answer + AI explanation with a free account

1. A.Memory Management Unit
2. B.Translation Lookaside Buffer
3. C.Swapping
4. D.Page fault

Answer + AI explanation with a free account

1. A.Swapping — free memory split into small non-contiguous holes too scattered to satisfy a request
2. B.Swapping — a scheme dividing memory into fixed-size frames and processes into equal-size pages
3. C.Swapping — a scheme dividing a process into variable-size logical segments like code, stack and data
4. D.Swapping — moving an entire process between main memory and a backing store on disk

Answer + AI explanation with a free account