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oee [108]
1 year ago
9

In step 4 of the CSMA/CA protocol, a station that successfully transmits a frame begins the CSMA/CA protocol for a second frame

at step 2, rather than at step 1. What rationale might the designers of CSMA/CA have had in mind by having such a station not transmit the second frame immediately (if the channel is sensed idle?
Computers and Technology
1 answer:
DerKrebs [107]1 year ago
5 0

Answer:

There could be a collision if a hidden node problem occurs.

Explanation:

CSMA/CA(carrier sense multiple access/ collision avoidance) is a multiple access method in wireless networking, that allows multiple node to transmit. Collision avoidance of this method is based on preventing signal loss or downtime as a result of collision of transmitting multi signals.

If a node at step 4(transmit frame) sends the first frame, the node still needs to send a RTS(request to send) and to receive a Clear to send (CTS) from the WAP, the is to mitigate the issue of hidden node problem as all frame are treated as unit, so other listening nodes, not detected would seek to connect and transmit as well.

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Graphical elements that precede each item in a list are known as​ __________.
Vanyuwa [196]

The answer in the space provided is the bullets as this is the graphic elements that are used in each items that is organized in a list in a way of making the list more clearer and more presentable with the given indications or symbols.

4 0
2 years ago
Members of the sales team use laptops to connect to the company network. While traveling, they connect their laptops to the inte
coldgirl [10]

Answer: Network access control (NAC)

Explanation:

The solution that should be used is the network access control. Network access control helps in keeping devices and users that are unauthorized out of ones private network.

In this case, since one will like to prevent the laptops from connecting to the network unless anti-virus software and the latest operating system patches are installed, then the network access control can be used. One can only give access to the device that it wants to give access to and prevent others from connecting.

3 0
1 year ago
Provide an example of each of the three primary information security areas: (1) authentication and authorization, (2) prevention
snow_lady [41]

Answer:

Explanation:

1. Authentication is a method for confirming users' identities. Once a system determines the authentication of a user, it can then determine the access privileges for that user. Authorization involves providing a user with permission, including access levels and abilities. For example file access, hours of access, and amount of allocated storage space.

2. Content filtering is a software organizations use that filters content, such as emails, to prevent the accidental or malicious transmission of unauthorized information. Encryption scrambles information into an alternative form that requires a key or password to decrypt. In a security branch, an intruder is then unable to read encrypted information. A firewall is hardware and/or software that guard a private network by analyzing incoming and outgoing information for the correct markings.

3. Intrusion detection software (IDS) features full-time monitoring tools that search for patterns in network traffic to identify intruders.

4 0
2 years ago
There are two cons to an OLTP database. Which of the following are a solution of these cons?​
Delicious77 [7]

Answer:

The answer is below

Explanation:

An OLTP (Online transaction processing) database is a database that allows for quick transaction processing. It involves inserting, deleting, updating data in the database.

OLTP has many drawbacks like if the system fails, all transactions are going to have problems. Also, since multiple users are allowed to access the data, it makes it prone to hackers.

The solution to the problems associated to the OLTP database is the OLAP (online analytical processing) database.

The OLAP systems allow users to analyze database information from multiple database systems at one time thereby allowing analysis for business decisions.

6 0
2 years ago
Why is it important to back up data on a computer before you burn-in test the cpu?
katen-ka-za [31]
A burn-in test is a test which is usually performed on a system or component by running it for a long time in order to bring out any errors or system failures etc. 
While doing it on CPU the data must be backed up as any kind of error or failure may result in the loss of data, at time systems can be repaired to retrieve data but still there is no guarantee, backing up is the best option.
5 0
1 year ago
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