4. Suppose you have a byte-addressable virtual address memory system with 8 virtual pages of 64 bytes each, and 4 page frames. Assuming the following page table, answer the questions below: Page # Frame # Valid Bit 0 1 1 1 0 1 1 0 0 0 123 4569 7 3 0 2 a) How many bits are in a virtual address? b) How many bits are in a physical address? c) How many bits are virtual page number?

4. Suppose you have a byte-addressable virtual address memory system with 8 virtual pages of 64 bytes each, and 4 page frames. Assuming the following page table, answer the questions below: Page # Frame # Valid Bit 0 1 1 1 0 1 1 0 0 0 123 4569 7 3 0 2 a) How many bits are in a virtual address? b) How many bits are in a physical address? c) How many bits are virtual page number?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: QUESTION 2 Each block of data in a computer's hard drive is addressed with a unique number. A given…

A: 1) When a computer's hard drive is addressed, each block of data is indeed assigned a unique number,…

Q: In comparison to straight translation, what are the benefits of using segmented memory address…

A: Segmented memory address translation offers greater flexibility compared to straight translation. In…

Q: Suppose a computer using direct mapped cache has 4M byte of byte-addressable main memory, and a…

A: Computer memory is a device that stores data and allows us to retrieve it when needed. Primary…

Q: I have a 128-bit computer where addresses are 128 bits wide. I want to implement virtual memory with…

A: The following solution is

Q: C1. Assume a cache of 1 MB organized as 32 bytes each line. The main memory is 256 MB. a. Determine…

Q: 3. Suppose the memory cells at addresses A4 to B1 in the machine described in Appendix C contain the…

A: According to the information given:- We have to answer the machine started with its program counter…

Q: a. Describe exactly how, in general, a virtual address generated by the CPU is trans- lated into a…

A: Answer: a) A Virtual address generated by the CPU is translated into physical main memory address by…

Q: 2. Suppose we have a memory and a direct-mapped cache with the following characteristics. Memory is…

A: Direct Mapping: In direct mapping, A particular block of main memory can map to only one particular…

Q: mputer has a 16 bit address space A[15:0]. If all addresses having bits A[15:13]=111 are reserved…

A: Given : A computer has a 16 bit address space A[15:0]. If all addresses having bits A[15:13]=111 are…

Q: 1. Suppose a computer using direct mapped cache has 2^20 bytes of byte-addressable main memory, and…

A: Given:- Size of main memory = 220 bytes Size of blocks = 24 bytes…

Q: Suppose the page table for the process currently executing on the processor looks like the…

Q: Answer any 2 or 3 question among all

A: A virtual address space or address space is the set of ranges of virtual addresses that an operating…

Q: 2. Assume a computer that has 32-bit integers. Show how each of the following values would be stored…

A: Let's break down how each value would be stored sequentially in memory, starting at address 0x100,…

Q: 2. 2. Suppose a computer using direct-mapped cache has 2³2 bytes of byte-addressable main memory and…

A: Given Data Main Memory Size = 232 Bytes Number of Cache Blocks = 1024 = 210 Block Size = 32 Bytes =…

Q: Given a system with 32 bits logical address and paging is used for memory management, the page size…

A: A logical address is a virtual address that is generated by the CPU and used by a program or process…

Q: What is the difference between segmented memory address translation and direct translation

A: Answer:

Q: Problem 0. The following table gives some of the parameters for a number of different hardware…

A: Hardware caches play a critical role in improving the performance and efficiency of modern computing…

Q: Consider the following portion of a page table from a system with 4 KiB (i.e., 4096 byte) pages.…

A: We have given portion of page table and page size is 4KiB. Using virtual memory address, we have to…

Concept explainers

Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.

Question

4. Suppose you have a byte-addressable virtual address memory system with 8 virtual
pages of 64 bytes each, and 4 page frames. Assuming the following page table,
answer the questions below:
Page # Frame #
0
1
1
2
3
4
5
6
7
3
0
2
Valid Bit
1
1
0
1
1
0
0
0
a) How many bits are in a virtual address?
b) How many bits are in a physical address?
c) How many bits are virtual page number?
d) How many bits are page frame number?
e) How many bits are page offset?
f) What physical address corresponds to the following virtual addresses (if the
address causes a page fault, simply indicate this is the case)?
1) 0x00
2) 0x44
3) 0XC2
4) 0x80

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: a) How many bits are in a virtual address?

VIEW

Step 2: b) How many bits are in a physical address?

VIEW

Step 3: c) How many bits are virtual page number?

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

Which line of code reserves space in memory and which line puts a value into memory?LINE 1: int x;LINE 2: x = 1;
1. Write about the entire details of memory structure design and characteristics. 2. How much the number of bits calculation required for the logical address, if you considered the segment size is 1 k bytes and there are 32 segments? 3. In a paging model system, if a page size of 512 bytes and containing 64 entries of 11 bit each (including valid and invalid bit). How much the size of the physical address space needed?
4.8 Consider a machine with a byte addressable main memory of 2 bytes and block size of 8 bytes. Assume that a dircct mapped cache consisting of 32 lines is used with this machine. a. How is a 16-bit memory address divided into tag, line number, and byte number? b. Into what line would bytes with each of the following addresses be stored? 0001 0001 0001 1011 1100 0011 0011 0100 1101 0000 0001 1101 1010 1010 1010 1010 c. Suppose the byte with address 0001 10100X01 1010 is stored in the cache. What are the addresses of the other bytles stored along with it? d. How many total bytes of memory can be stored in the cache? e. Why is the lag also stored in the cache?
The IBM System/370 architecture uses a two-level memory structure and refers to the two levels as segments and pages, although the segmentation approach lacks many of the features described earlier in this chapter. For the basic 370 architecture, the page size may be either 2 Kbytes or 4 Kbytes, and the segment size is fixed at either 64 Kbytes or 1 Mbyte. For the 370/XA and 370/ESA architectures, the page size is 4 Kbytes and the segment size is 1 Mbyte. Which advantages of segmentation does this scheme lack? What is the benefit of segmentation for the 370?
consider you are looking at a virtual memory of size 1 GiB also a physical memory of size 128 KiB and a page size equal to 8 KiB. FIgure out how many bits are used to specify a virtual page number?
Assume a logical address space consists of 4 pages of 4096 words each and is mapped to a physical memory space of 256 frames. What is the size of the physical address space? 12 bits 14 bits 20 bits 8 bits
16-bit virtual addresses
3
Q.2 Suppose a system has a logical address space of size 25 (m=5), a page size of 4 bytes, and a physical memory of 128 bytes. Given the following page table, find out the respective physical addresses for each of the logical address listed in Table 2. (Note: all addresses are expressed in decimal number system) Table 1: Page table 0 2 5 7 0 15 1 2 3 4 5 18 6 20 7 22 Table 2: Fill out this table with corresponding physical memory addresses Logical Address Physical Address 0 6 10 17 23
QUESTION 2 Suppose a computer using direct mapped cache is using 216 (64K) bytes of byte-addressable main memory, and a cache size of 4096 bytes, where each cache block contains 256 bytes. a) How many blocks of main memory are there? b) What is the format of a memory address as seen by cache, i.e. what are the length of the tag, block, and offset fields? c) Given memory address 2B9D (in hexadecimal format), which block in the cache will be searched? (What is that block's id?)
Question 9
Suppose a computer system uses 16 but addresses for both virtual and physical address. In addition, assume each page (and frame) has a size of 256 bytes. -How many bits are used for page number? -How many bits for offset? -what is the max number of pages a process can have?