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Rom4ik [11]
3 years ago
14

Global visibility is: Group of answer choices A visibility type where an object A has a semi-permanent reference to another obje

ct B through a class-level field. The visibility persists as long as both A and B exist. A visibility type where an object A receives a reference to an object B as an argument to a method of A. A visibility type where an object A has visibility to B via a singleton or other construct where B can be accessed in any context. The visibility persists as long as both A and B exist. A visibility type where an object A has a reference to an object B within a method of A as a newly declared variable.
Computers and Technology
1 answer:
polet [3.4K]3 years ago
5 0

Answer:

the visibility persists as long as both A and B exist.

Explanation:

Global visibility basically means that the visibility persists as long as both A and B exist. In programming global visibility signifies that the variable/data in question is visible from any context of the code. Meaning that it can be accessed and manipulated from any part of the code, even from within a function or another document. This makes it very easy to use and structure accordingly.

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The find_item functions uses binary search to recursively locate an item is the list, returning true if found, false otherwise.
bagirrra123 [75]

Answer:

def find_item(listed, item):

   listed.sort()

   #Returns True if the item is in the list, False if not.

   if len(listed) == 0:

       return False

   middle = int(len(listed)/2)

   #Is the item in the first half of the list?

   if item < listed[middle]:

   #Call the function with the first half of the list

       return find_item(listed[:middle], item)

   

   #Is the item in the center of the list?

   if listed[middle] == item:

       return True

   else:

   #Call the function with the second half of the list

       return find_item(listed[middle+1:], item)

   return False

list_of_names = ["Parker", "Drew", "Cameron", "Logan", "Alex", "Chris", "Terry", "Jamie", "Jordan", "Taylor"]

print(find_item(list_of_names, "Alex")) # True

print(find_item(list_of_names, "Andrew")) # False

print(find_item(list_of_names, "Drew")) # True

print(find_item(list_of_names, "Jared")) # False

Explanation:

The defined python function is used to implement a binary search, the function is recursively called in the function statement, but for it to work on the list ( ie, search for an item in the list), the list must be sorted in ascending order (default).

7 0
3 years ago
What is the formula equivalent to the function =SUM(B1:B5)? A. =B1+B5 B. =$B$1+$B$5 C. =B1+B2+B3+B4+B5 D. =$B$1+$B$2+$B$3+$B$4+$
Contact [7]

Given the options, I would choose Option C. =B1+B2+B3+B4+B5.

5 0
3 years ago
Can some one fix this <br> input ("Enter a number: ") <br> print (num * 8)
Kaylis [27]
If you save the input as num,
this will print the input 8 times.

num = input("Enter a number: ")
print(num * 8)

If you want to do actual math calculations,
then the input needs to be a number.

num = float(input("Enter a number: "))
print(num * 8)

This doesn't account for any errors in which the user doesn't input a number, but I don't think that's what you were looking for anyway :)
6 0
3 years ago
Cache memory is a special group of very fast memory circuitry located on or close to the CPU that is used to speed up processing
antoniya [11.8K]

Answer:

TRUE

Explanation:

Cache memory is a computer component that help to retrieve data from the computer's memory by acting as a temporary storage area where the computer's processor can retrieve data easily. The temporary storage area is known as cache and is more readily available to the processor than the computer's main memory source.

Although Cache memory is a smaller type of a computer memory that provides high-speed data access to a processor and stores which frequently used computer programs, applications and data.

Cache memory is used to reduce the average time to access data from the Main memory and they stores data so that future requests for that data can be served faster.

5 0
3 years ago
g What field in the IPv4 datagram header can be used to ensure that a packet is forwarded through no more than N routers? When a
ad-work [718]

Answer:

a) Time to live field

b) Destination

c) Yes, they have two ip addresses.

d) 128 bits

e) 32 hexadecimal digits

Explanation:

a) the time to live field (TTL) indicates how long a packet can survive in a network and whether the packet should be discarded. The TTL is filled to limit the number of packets passing through N routers.

b) When a large datagram is fragmented into multiple smaller datagrams, they are reassembled at the destination into a single large datagram before beung passed to the next layer.

c) Yes, each router has a unique IP address that can be used to identify it. Each router has two IP addresses, each assigned to the wide area network interface and the local area network interface.

d) IPv6 addresses are represented by eight our characters hexadecimal numbers. Each hexadecimal number have 16 bits making a total of 128 bits (8 × 16)  

e) IPv6 address has 32 hexadecimal digits with 4 bits/hex digit

4 0
3 years ago
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