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Neko [114]
3 years ago
12

A mobile device is freezing almost daily. The device remains powered on and the screen illuminated. The user restarts the device

, and it operates for another day or so. This problem has been occurring for several weeks.
1. Which of the following steps should the user take next to resolve this issue?
2. Check for OS updates.
3. Factory reset the device.
4. Delete all user data.
5. Return the device to the manufacturer.
Computers and Technology
1 answer:
Alex Ar [27]3 years ago
7 0

Answer: C

Check for OS updates

Explanation:

The freezing could be a result of an Operating system (OS) problem that was already fixed with the latest update. Check for uninstalled update in your phone's settings to make sure the device is not missing any vital stability update.

OS updates are basically for correcting any vulnerabilities or discovered errors in every operating system.

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suppose a malloc implementation returns 8-byte aligned addresses and uses an explicit free list where the next and previous poin
Naya [18.7K]

4 bytes because even if you call malloc and free a little more frequently, that might still occur. malloc frequently uses the extra space for managing (a linked list of all memory blocks and their sizes) when it takes a few bytes more than what is requested.

There is a good chance that you will tamper with the internal management structures and cause the subsequent malloc of free will to crash if you write some bytes either before or after your allocated block.

4004 because malloc internally always allocates at least four bytes. Your program would be 4000 if you added four bytes, making it 4004. may crash only when you access byte n+1. Additionally, the operating system typically only protects pages of memory.

Your process may be able to read-write the remainder of the page and will only crash when accessing the next memory page if your malloc-ed byte is in the middle of a page with a size of 512 bytes. But keep in mind: Even if this works, the behavior is not clear.

To learn more about internal management here

brainly.com/question/13398903

#SPJ1

Full Question = Suppose a malloc implementation returns 8-byte aligned addresses and uses an explicit free list where the next and previous pointers are each 32-bits. Blocks have a 32-bit header and 32-bit footer, where the low-order bit of the header and footer are used to indicate whether the block is allocated (1) or free (0). Furthermore, the block size (which includes the header, payload, footer, and any necessary padding) is rounded up to the nearest multiple of 8, and this size (in bytes) is stored in the header and footer. Assume any padding must be between the payload and the footer.

a) If we call malloc(1), what block size will be allocated, in bytes?

b) With the same conditions, and assuming we've already called malloc(1), if the heap used by malloc starts at address 0x4000 (16384 in decimal), what address would be returned if we then called malloc(32)?

8 0
1 year ago
Interruption attacks are also called ___ attacks:
Lelu [443]

Answer:

Interruption attack are also referred to as Denial Of Service(DOS) attack.

Explanation:

Interruption attack are also called denial of service.The main aim of  interruption attack or Denial Of Srvice attack is to make resources unavailable.

For example:- wordpress.com had an DOS attack that took down their servers hence the service was unavailable for it's users.

Hence we conclude that the answer to this question is Denail of Service (DOS).

4 0
3 years ago
The sum of all the minterms of a boolean function of n variables is equal to 1.
Aleksandr-060686 [28]

The answers are as follows:

a) F(A, B, C) = A'B'C' + A'B'C + A'BC' + A'BC + AB'C' + AB'C + ABC' + ABC

= A'(B'C' + B'C + BC' + BC) + A((B'C' + B'C + BC' + BC)

= (A' + A)(B'C' + B'C + BC' + BC) = B'C' + B'C + BC' + BC

= B'(C' + C) + B(C' + C) = B' + B = 1


b) F(x1, x2, x3, ..., xn) = ∑mi has 2n/2 minterms with x1 and 2n/2 minterms

with x'1, which can be factored and removed as in (a). The remaining 2n1

product terms will have 2n-1/2 minterms with x2 and 2n-1/2 minterms

with x'2, which and be factored to remove x2 and x'2, continue this

process until the last term is left and xn + x'n = 1

4 0
3 years ago
In the well-known ____________________ attack, an attacker monitors (or sniffs) packets from the network, modifies them, and ins
Oduvanchick [21]

Answer:

MAN IN THE MIDDLE

Explanation:

Man in the middle attack is an attack where the attacker secretly relays and possibly alters the communications between two parties. When data is sent between a computer and a server, a cybercriminal can get in between and spy or eavesdrop.

A man in the middle attack can positions himself in a conversation between a user and an application in other to impersonate one of the parties, making it appear as if a normal exchange of information is underway.

In a man-in-the-middle cyber-attack, the attacker places themselves in between two devices and monitor packets from the network, modifies them, and inserts them back into the network without the other parties knowing.

3 0
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Que cambiaría personalmente en esos momentos de cuarentena​
Natali5045456 [20]
No poder salir sin estar con la duda de que si una persona con la que estas cercas tendría el virus , no poder visitar a ciertas personas
6 0
3 years ago
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