Most of us have been using elements of Web 2.0 without even realizing it.<br> True<br> False

I dont know how to put the negative sigh on my computer

valina [46]

You put the dash on the right side up top ape

8 0

3 years ago

Computer system with a 32-bit logical address and 4k-byte page size. assume that each entry of a page table consists of 4bytes.

Annette [7]

The number of bits in the physical address is 26 bits. The number of entries in a page table is $\mathbf{2^{20}}$ entries. The size of the page table in a one-level paging scheme is 4MB.

<h3>
What is paging in Operating System?</h3>

Paging is a storage method used in operating systems to recover activities as pages from secondary storage and place them in primary memory. The basic purpose of pagination is to separate each procedure into pages.

We are given the following parameters:

32-bit logical address
Page size = 4 KB = $\mathbf{2^{12} \ bytes }$
Size of each Page table entry = 4 bytes

Suppose the system supports physical memory size = 64 MB = $\mathbf{2^{26} \ bytes}$

Thus, the number of bits in the physical address is computed as:

= $\mathbf{log_2 \{Physical-memory-size\}}$

$=\mathbf{log_2(2^{26})}}$

= 26 bits

The number of entries in a page table = logical address space size/page size

The number of entries in a page table $\mathbf{= \dfrac{2^{32}}{2^{12}}}$

$\mathbf{=2^{20}}$ entries

In a one-level paging scheme, the size of the table is:

= entire no. of page entries × page table size

= $\mathbf{2^{20}\times 4 \ bytes}$

= 4 MB

b.

suppose that this system supports up to 2^30 bytes of physical memory.

The size of the page table will be the same as 4 MB due to the fact that the number of entries, as well as, the page table entry size is the same.

Since the size of the page table surpasses that of a single page. A page cannot include a whole page table. Therefore, the page table must be broken into parts to fit onto numerous pages, and an additional level of the page table is required to access this page table.

This is called the Multi-Level Paging system.

Therefore, we can conclude that the number of bits in the physical address is 26 bits, the number of entries in a page table is $\mathbf{2^{20}}$ entries, and the size of the page table in a one-level paging scheme is 4MB.

Learn more about Paging in Operating System here:

brainly.com/question/17004314

#SPJ1

4 0

2 years ago

Which is true about TCP and UDP? Choose two answers.

vichka [17]

Answer:

TCP is a connection-oriented protocol

UDP does not acknowledge a receipt of data

Explanation:

TCP (Transmission Control Protocol) is a protocol to transfer data, this is one of the most important protocols on the entire internet, this method was implemented from the beginning of the network.

UDP (User Datagram Protocol) this is a protocol faster than TCP because this method doesn't establish a connection to sent data, in this case, always sent data, but TCP is more secure than UDP, and for that UDP is used to transfer music or videos, and TCP websites and database.

UDP doesn't need acknowledgment is done by UDP, is only concerned with speed.

7 0

3 years ago

Help me with the question please..

PIT_PIT [208]

First addition, then division

4 0

3 years ago

Which statement is true about customizing presentation programs? A. You can add multiple animations to an object in a slide with

levacccp [35]

From all the given options, the correct statement about customizing presentation is (B) you can customize a pre-designed slide layout with the Slide Master.

The option (A) is false, because if you want to put animations on your slide objects, you need to go to the Animation tab, while option (C) is false because to view the animation that you assign to a slide object, you need to open the animation pane bar or go to slide show. Option (D) is false because you <em>can </em>make changes to the colors, fonts, and effects for pre-designed slide themes.

6 0

3 years ago

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Most of us have been using elements of Web 2.0 without even realizing it. True False