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Georgia [21]
2 years ago
13

________ is the general name for a security flaw in a program. Group of answer choices A security fault A virus Malware A vulner

ability
Computers and Technology
1 answer:
Norma-Jean [14]2 years ago
4 0

Answer:

Hi there it is A vulnerability

Explanation:

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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
1 year ago
What is the value of the variable phones after the execution of the following code? phones = {'John': '5555555', 'Julie' : '7777
uysha [10]

Answer:

phones = {'John': '1234567', 'Julie' : '7777777'}

Explanation:

In the code given in the question phones dictionary contains contains two keys John and Julie and have the values '5555555' and '7777777' respectively. Now in the code the key John in the dictionary phones is assigned the value '1234567' .So the value corresponding to the key John becomes '1234567'.

3 0
3 years ago
What makes us see continuously moving images when still images appear in rapid succession
Sav [38]
Animations and frames?
8 0
3 years ago
How do you know how much space is on the computer
Vladimir79 [104]
Depending on which computer you have you can go into settings and check the data tab or it should be on the box how much it comes with :)
5 0
3 years ago
Read 2 more answers
An important part of the development of transport is safety. how can you, when you get around in different ways, contribute to m
nika2105 [10]

Answer:

I need help I don't get a this questions please asap?

Explanation:    Head-on collisions. Some simple solutions can help to reduce the risk of head-on crashes. ...

   Run-off road crashes. This is when a vehicle collides with a stationary object, such as a sign or lamppost, after leaving the road. ...

   Intersection crashes. ...

   Vulnerable road users. ...

   Much work to be done.

Aug 31, 2018

8 0
3 years ago
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