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4 years ago

Which statement best describes the concept of usability?

Computers and Technology

2 answers:

topjm [15]4 years ago

7 0

Answer:

B. Usability emphasizes utility over aesthetics.

Explanation:

nordsb [41]4 years ago

4 0

Usability emphasizes utility over aesthetics statement best describes the concept of usability.

B. Usability emphasizes utility over aesthetics.

<u>Explanation:</u>

Usability mainly speaks about the utility of an item. There are many wastes created in home and work place and those are sometimes thrown without knowing that it can be re-used for another purpose.

It is always better to re-use the product without considering aesthetic aspects though aesthetic is equally important. We can make the old objects to create a new one.

There are many videos in the social media to make the old objects to be used as a sub-product to create a new object and sometimes it looks better than an old one.

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Protocols used in each layers in each osi reference model

natka813 [3]

The protocols that are often used in each layers in each OSI reference model are:

Layers Protocols

Layer 7- Application SMTP, HTTP, FTP, POP3, SNMP

Layer 6- Presentation MPEG, ASCH, SSL, TLS

Layer 5-Session NetBIOS, SAP

Layer 4-Transport TCP, UDP

Layer 3-Network IPV5, IPV6, ICMP, IPSEC, ARP, MPLS.

Layer 2-Data Link RAPA, PPP, Frame Relay, ATM, Fiber Cable.

Layer 1-Physical RS232, 100BaseTX, ISDN, 11.

<h3>What is OSI Model?</h3>

The OSI Model is known to be a kind of a logical and conceptual framework that tells all about network communication that is often used by systems in an open to interconnection and also in any communication with other forms of systems.

Note that the Open System Interconnection (OSI Model) is one that tells more about a logical network and it is one that also tells about computer packet transfer via the use of various layers of protocols.

Therefore, The protocols that are often used in each layers in each OSI reference model are:

Layers Protocols

Layer 7- Application SMTP, HTTP, FTP, POP3, SNMP

Layer 6- Presentation MPEG, ASCH, SSL, TLS

Layer 5-Session NetBIOS, SAP

Layer 4-Transport TCP, UDP

Layer 3-Network IPV5, IPV6, ICMP, IPSEC, ARP, MPLS.

Layer 2-Data Link RAPA, PPP, Frame Relay, ATM, Fiber Cable.

Layer 1-Physical RS232, 100BaseTX, ISDN, 11.

Learn more about OSI reference model from

brainly.com/question/12976859

#SPJ1

8 0

2 years ago

HELP ME PLEASE

MAXImum [283]

Explanation:

Threats

Computer Security Threats are possible dangers that can affect the smooth functioning of your PC. These may be a small piece of adware or a harmful Trojan malware. In the present age, computer security threats are constantly increasing as the world is going digital. computer security threats

Types of Computer Security Threats

There are several types of computer security threats such as Trojans, Virus, Adware, Malware, Rootkit, hackers and much more. Check some of the most harmful types of computer Security Threats.

COMPUTER VIRUS

A Computer Virus is a malicious program, which replicates itself and infects the files and programs of your PC and can make them non-functional.

COMPUTER WORMS

A self-replicating computer program that spreads malicious codes, computer worms make use of the network to send copies of the original codes to other PCS. It can also go to the extent of sending transferring documents utilizing the email of the user.

SCAREWARE

Scareware is a malware that tricks victims to buy software by displaying fake virus alerts. A scareware infected PC may get pop-ups of fake malware threats and to get rid of those, users are prompted to purchase a fake anti-malware software.

KEYLOGGER

Also known as a keystroke logger, Keyloggers can track the real-time activity of a user on his computer. Keylogger runs in the background and records all keystrokes made by a user and passes the information to the hacker with the motive to steal password and banking details.

ROOTKIT

A rootkit is considered extremely dangerous as they appear to be legitimate files and deceives the computer user. Rootkit masks viruses and worms and makes them appear as necessary files. These are very difficult to remove and only an antivirus with the anti-rootkit feature can remove a rootkit.

Tips for Best Computer Security

For best computer security, you must follow certain guidelines, which are also called computer best practices. 1. Use the best antivirus software, which not only provides protection to your PC but also internet protection and guards against cyber threats. 2. Do not download untrusted email attachments and these may carry harmful malware. 3. Never download software from unreliable sites as they may come with a virus that may infect your system as soon as you install the software.

4 0

2 years ago

What are the differences between switches and routers? cse question

deff fn [24]

Answer:

The main objective of router is to connect various networks simultaneously and it works in network layer

Explanation:

The main objective of router is to connect various networks simultaneously and it works in network layer

7 0

3 years ago

What is mean by computer ?where it is used?

dem82 [27]

Answer:

computer is a set consisting of hardware and software that perform specific set of instructions

Explanation:

thy are used in hospitals, institute,hotels

4 0

3 years ago

What happens during an Active object's animation sequence action?

RoseWind [281]

Answer:

B. The Active object's animation stops looping.

Explanation:

As the new event happens, the loop tells it to happen by stopping. And hence, B is the correct option out here. Neither A or C and Nor D is the correct option. The animation does not end here, and the next event takes place. Also, the active object's animation does not change the speeds. Hence, the correct option here is certainly the B.

4 0

3 years ago