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Lostsunrise [7]
3 years ago
12

Which of the following best describes the infrastructure ISPs provide?

Computers and Technology
1 answer:
svet-max [94.6K]3 years ago
4 0

Answer:

cables, towers, and underground tubes

Explanation:

Its certainly the above one, and through this internet service is being provided. So internet service is self-understood, and what ISP firstly provides are cables, underground tubes, and the towers. And it is only these all through which the ISP provides internet service. And remember we are in this question dealing with the infrastructure and not the services or products. Hence, phone service, websites, and files, as well as the emails, search engines, and the videos, are not the solution here as they are not the infrastructure. And ISPs never provide the computers, ethernet cables or keyboards.

Hence, the correct answer is as mentioned in the answer section.

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We have an internal webserver, used only for testing purposes, at IP address 5.6.7.8 on our internal corporate network. The pack
lukranit [14]

Answer:

Check the explanation

Explanation:

A packet filter firewall is used as a check point between internal corporate network to the outside internet. It blocks all the inbound traffic from the outside hosts trying to initiate a direct TCP connection to the internal corporate webserver. The network design with firewall is shown in the attached image below:

The figures in the attached image below shows an internal corporate network is protected with a packet filter firewall to minimize the inbound traffic from the external network or an internet. Therefore, the packet filter is used as a check point between the network.

The packet filter blocks all attempts by the outside hosts in order to initiate a direct TCP connection to the internal webserver of the internal corporate network.

Going by the second part of the attached image below can can therefore conclude that:

• Rule 1 specifies that, deny any packet with the destination address 5.6.7.8 if the STN flag of TCP header is set.

• Rule 2 specifies that, allow the inbound email traffic from the external source.

• Rule 3 specifies, allows the Outbound TCP traffic from the internal corporate network.

• Rule 4 specifies, allows outbound Email traffic from the internal corporate network to the external network.

• Rule 5 specifies, block any traffic from any source to the any destination.

3 0
3 years ago
A ____ is a key-dependent, one-way hash function that allows only specific recipients(symmetric key holders) to access the messa
Alexxx [7]

Answer: (C) MAC

Explanation:

MAC is stand for the message authentication code and it is one of the key dependent hash function. Message authentication provide the data integrity and also the origin of data authentication.

  • It basically allow the specific recipients known as the holder of the symmetric key.
  • The message authentication code uses the CBC (Cipher block chaining) mode for constructing the MAC algorithm and it also uses the block cipher for the conjunction by using the CBC operations.    

On the other hand, all the options are incorrect as they are not the key dependent hash function.

Therefore, Option (C) is correct.

7 0
3 years ago
Different uses of quick access toolbar
zhannawk [14.2K]
“The Quick Access Toolbar provides access to frequently used commands, and the option to customize the toolbar with the commands that you use most often. By default, the New, Open, Save, Quick Print, Run, Cut, Copy, Paste, Undo, and Redo buttons appear on the Quick Access Toolbar” -Information Builders
5 0
3 years ago
Date Time Manipulation Exploration If you start from Jan 1st, 1757, and repeatedly add 8 days, until you hit 1800, how many time
zimovet [89]

Answer:

from datetime import datetime, date, timedelta

def count_weekdays(start_date, add_days, stop_year, weekday):

   my_date = start_date

   m = 0  

   while my_date.year != stop_year:  

       my_date = my_date + timedelta(days = add_days)

       if my_date.isoweekday() == weekday:

           m += 1

   return m

date_val = date(1757,1,1)

try:

   date_val = datetime.fromisoformat(input("Enter date in the format yyyy-mm-dd: "))

except ValueError:

   print("Wrong isoformat string")

print(count_weekdays(date_val, 8, 1800, 1))

Explanation:

The datetime package of the python programming language has several time modules like the date, datetime, pytz, timedelta, etc, used to manipulate date and time in documents. The function count_weekdays has four parameters and returns the number of a specified weekday in a period of time.

4 0
3 years ago
____________improves the understandability of a website, by maintaining similar design elements throughout.
lora16 [44]

Simple and easy user interface design can help the users understand what they can do on the website, without confusion when they are loading on the website.

Best practice on the users experiences can help the users to visit the website easily and get what they want as fast as possible. It is the way to improve a website understandability.

4 0
3 years ago
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