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Llana [10]
2 years ago
15

The Open Systems Interconnection (OSI) is a conceptual model whose purpose is to make networks more manageable. Its objectives i

nclude allowing for more portable hardware and software integration, the creation of standard interfaces that would allow manufacturers of different systems to interconnect their equipment and the creation of a model that would be used world-wide. There are seven layers to the OSI. The lowest - or first - layer allows a contiguous sequence of bits to be transmitted through the network. Which is the first layer: A. data-link layer, B. physical layer, C. network layer, D. transport layer
Computers and Technology
1 answer:
andrew-mc [135]2 years ago
6 0

Answer:

A. data-link layer

Explanation:

Data-link layer is the first layer and allows a contiguous sequence of bits to be transmitted through the network.

On top of it is the Network Layer and it handles the task of routing network messages from one computer to another.

Then comes the Transport Layer which is the basic layer at which one network computer communicates with another network computer.

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What are the vertical areas of the spreadsheet?
stepladder [879]

Answer:

Columns

Explanation:

A spreadsheet may a explained as a tabular arrangement or arrays of cells which allows users to enter both numeric and string data for storage, manipulation and analysis. The spreadsheet program has both the vertical and horizontal cell arrangement with the vertical areas being reffered to as THE COLUMN which are labeled using alphabets arranged from A - AZ, AA - AZ, and so on to make up a total of 16384 columns on the Microsoft Excel spreadsheet program. Cells are located using a combination of column and row address. With row representing the horizontal area of the spreadsheet and labeled with digits. Therefore cells are usually refereed to as A1, (column A row 1) and so on.

7 0
2 years ago
You should always keep a backup of data stored in the cloud because the cloud provider does not automatically do this True or fa
Art [367]

Answer:

False

Explanation:

8 0
3 years ago
Write a function sample_median(n,P) that generates n random values using distribution P and returns the median of the collected
TiliK225 [7]

Answer:

import numpy as np

def sample_median(n, P):  

   return np.median( np.random.choice ( np.arange (1, len(P) + 1 ), n, p = P ) )

print(sample_median(10,[0.1 0.2 0.1 0.3 0.1 0.2]))

print(sample_median(10,[0.1 0.2 0.1 0.3 0.1 0.2]))

print(sample_median(5, [0.3,0.7])

print(sample_median(5, [0.3,0.7])

Explanation:

  • Bring in the numpy library to use the median function provided by the numpy library.
  • Define the sample_median function that takes in 2 parameters and returns the median with the help of built-in random, choice and arrange functions.
  • Call the sample_median function by providing some values to test and then display the results.    

Output:

4.5

4.0

2.0

1.0

7 0
3 years ago
What country is associated with the tor relay using the ip address 104. 244. 74. 97?.
Lelu [443]

Answer:

104.28.63.45 is an IP address located in Santos, Sao Paulo.

Explanation:

3 0
2 years ago
What is the output of the following query? SELECT INSERT ('Knowledgeable', 5, 6, 'SUPER');
Scrat [10]

Answer:

The above query gives an error.

Explanation:

  • The query gives an error because is not the correct syntax of the select or inserts query.
  • The syntax of the select query is as follows: "select Attributes_1_name, Attributes_2_name,...., Attributes_n_name from table_name;".
  • The syntax of the insert query is : "insert into table_name (column_1_name, column_2_name,...,column_n_name) values (column_1_value, column_2_value,...,column_n_value);".
  • The syntax of the insert and select query is : "insert into table_name (select Attributes_1_name, Attributes_2_name,...., Attributes_n_name from table_name);".
  • But the above query does not satisfy any property which is defined above. Hence it gives a compile-time error.
6 0
3 years ago
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