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2 years ago

To prevent replay attacks, authentication protocols create a number that will be used only once. The number is called a _____.

1 answer:

7 0

Authentication protocols are usually designed and configured to create a number that will be used only once, so as to prevent replay attacks in a computer network. Thus, this number is called a <u>nonce</u>.

Authentication work based on the principle of strategically matching an incoming request from an end user or electronic device to a set of uniquely defined credentials.

In an access control list (ACL), authentication and authorization is used to ensure an end user is truly who he or she claims to be, as well as confirming that an electronic device is valid through the process of verification.

In Cybersecurity, authentication protocols are usually designed and configured to create a nonce, which can be used only once, so as to prevent replay attacks in a computer network.

In conclusion, a nonce is used prevent replay attacks in a computer network because the number created by an authentication protocol can be used only once.

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Which part of the ethernet address is assigned to vendors to identify the equipment?

Nitella [24]

First three bytes of the ethernet address exists assigned to vendors to identify the equipment.

<h3>What is Ethernet address?</h3>

A media access control address stands for a unique identifier allocated to a network interface controller for usage as a network address in communications within a network segment. This use exists as standard in most IEEE 802 networking technologies, including Ethernet, Wi-Fi, and Bluetooth.

This address exists as the identifying mark that allows a networked computer to communicate with the Internet. The ethernet address exists how we can associate an “IP address” to an individual computer — without this– number, there's no form to access any servers, websites, email, etc.

The first three bytes (pairs of hexadecimal characters) of any unicast address include that vendor address component of the MAC address. The staying three bytes carry the serial number of that vendor's interface card. Dell, Inc. Apple, Inc.

Hence, first three bytes of the ethernet address exists assigned to vendors to identify the equipment.

To learn more about Ethernet address refer to:

brainly.com/question/7284219

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4 0

1 year ago

Write a python program to accept a number and check whether it is divisible by 4 or not

Alenkasestr [34]

Answer:

number = int(input("Enter number: "))

if (number % 4):

print("{} is not divisible by 4".format(number))

else:

print("{} is divisible by 4".format(number))

Explanation:

If the %4 operation returns a non-zero number, there is a remainder and thus the number is not divisable by 4.

5 0

2 years ago

Non-preemptive Shortest Job First (SJF) scheduling policy is not optimal if:

ivann1987 [24]

Answer:

The answer is A

Explanation:

Basically, Shortest job first (SJF) is a scheduling policy that selects jobs on queue for execution within a short execution time.

From the definition of SJF above, it means that there are a lot of process on queue and the (SJF) job is to receive processes on queue to execute within a short execution time.

Therefore, if all the jobs or process arrives at the SJF at the same time, the SJF will forfeit one of its major purpose which is scheduling of jobs.

That will therefore not make Non-preemptive Shortest Job First (SJF) not function at its optimal point.

4 0

3 years ago

The performance of a client-server system is strongly influenced by two major network characteristics: the bandwidth of the netw

Rama09 [41]

Answer:

A bandwidth is the maximum rate of transfer of data across a given path

Latency refers to the delay of data to travel or move between a source and destination

An example of a high bandwidth and high latency network is the Satellite Internet connectivity.

An example of a low bandwidth and latency network is the telephone system connection.

Explanation:

Solution

Bandwidth: Bandwidth determines how fast data can be transferred for example, how many bits/sec it can transport.

Latency: It refers to the delay or how long it takes for data to travel between it's source and destination.

An example of a high bandwidth and high latency network is the Satellite internet connection.

Satellite internet connection: This is responsible for the connectivity of several systems, it has a high bandwidth, since satellite are in space, due to distance it has a high latency.

So, satellite internet connection is compensated with high latency and high bandwidth.

An example of a low bandwidth and low latency network is the Telephony network.

Telephone/telephony internet connection: This connection does not have much data for transfer. it has low size audio files of which a low bandwidth range. also for both end or end users to understand and talk to each other, it has low latency.

3 0

3 years ago

A set of well-defined steps for performing a task or solving a problem is known as a(n):A) HierarchyB) AlgorithmC) Central Proce

RideAnS [48]

Answer:

The correct answer to the following question will be Option B (Algorithm).

Explanation:

An algorithm seems to be a countable series of very well-defined, machine guidance that is implementable, and are generally used to solve a group of issues and to perform a calculation.
It is widely used for processing of the data, computation and other associated computational and numerical activities.
A coding algorithm is a process of the computer that's a lot like just a formula that tells the machine precisely what actions you need to follow to fix a problem or achieve a goal.

The other three options will not be able to fix the problems that arise while achieving a goal, execution of a function or creating program code.

Therefore, Option B is the right answer.

5 0

3 years ago