Answer:
True
Explanation:
Describing where this quadratic is negative involves describing a set of numbers that are simultaneously greater than the smaller root (+1) and less than the larger root (+3). Write a C++ Boolean expression that is true when the value of this quadratic is negative.
Answer:
The Boolean Expression is (x >1)&&(x<3)
Explanation:
As mentioned in the question that to describe where the given quadratic is negative involves describing:
a set of numbers that are greater than the smaller root which is +1a set of numbers that are less than larger root which is +3So when the quadratic is negative the following boolean expression is true:
(x >1)&&(x<3)
This expression means that the set of numbers are greater than 1 and less than 3. x represents such number. So this boolean expression returns a boolean value true when the 1 and 2 are true. It can also be returned as 1 (which means true in boolean). In the above expression > and < are relational operators used for comparison and & is called logical operator which depicts that both (x>1) and (x<3) should hold or should be true for the expression to return true.
Example of boolean expression
The logic of Boolean expressions is explained with the following chunk of C++ code. For example x is a number, (x>1)&&(x<3) is an expression whose result is stored in "bool" data type variable result. If this expression holds true(i.e. value of x is greater than 1 and less than 3) then output will be 1 (true) otherwise 0(which means false).
int x;
cout<<"enter value";
cin>>x;
bool result;
result=(x>1)&&(x<3);
cout<<result;
how to engage more underrepresented and under resourced students in stem programs?
Answer:
Through after school programs
Explanation:
Under represented and under resourced students can be better engaged in STEM programs through the establishment of after school state of the arts learning centres that can augment for the vacuum in the regular school system.
In such programs, the use of technological platforms with an integrated electronic learning system is necessary, because it avails the students the opportunity to brace up with the evolving impact of information technology to learning and personal developments.
Secondly, the use of immediate resources within the reach of these under privileged and under resourced students is a necessity. for example, a student in a rural community could start become more engage in engineering designs, building technology, instrumentation and architecture through the use of disposed cartons used to construct buildings, cars etc.
which two functions of a firewalls in an enterprise network are true (choose two)
Answer:
A. They can use information about previous packets to make decisions about future packets.
E. They are more susceptible to DoS attacks than stateless firewalls
Explanation:
Assuming the following options:
A. They can use information about previous packets to make decisions about future packets.
B. They are most effective when placed in front of the router connected to the Internet
C. They can track the number of active TCP connections
D. They can fitter HTTP and HTTPS traffic in the inbound direction only
E. They are more susceptible to DoS attacks than stateless firewalls
A firewall by definition is a "software used to maintain the security of a private network. Firewalls block unauthorized access to or from private networks and are often employed to prevent unauthorized Web users or illicit software from gaining access to private networks connected to the Internet".
The basic purpose of a firewall is to control the traffic that is allowed to traverse from the internet.
Option A is correct since they use previous info in prder to make decisions about a site.
Option B is not true since the firewall is a software that not depends of the router connection to the internet, since the web is open for any IP.
Option C is not correct isnce the purpose for the firewalls is not analyze the acitve connections.
Option D is not correct since they can work in both directions and no present limitations in order to filter web pages to classify the info.
Option E is correct since one characteristic of the stateless firewalls compared to the stateful firewalls. Since "Stateless firewalls watch network traffic and restrict or block packets based on source and destination addresses or other static values" and present more security comaprd to the stateless stateful.
Final answer:
The correct options are A. They can use information about previous packets to make decisions about future packets and C. They can track the number of active TCP connections. Firewalls in an enterprise network can use information about previous packets and track the number of active TCP connections to enhance network security.
Explanation:
Two functions of firewalls in an enterprise network:
They can use information about previous packets to make decisions about future packets: Firewalls can track the state of connections and use this information to determine whether incoming packets are part of an established connection or if they are trying to initiate a new, potentially unauthorized connection.
They can track the number of active TCP connections: Firewalls can monitor the number of active Transmission Control Protocol (TCP) connections to ensure network resources are not overwhelmed by excessive connections or potential cyber threats.
Where is most of the information processed in a computer
Answer:
CPU is the correct suitable one-word answer for the above question.
Explanation:
CPU stands central processing units which are the only responsible device for the processing of the instruction given by the user for the demand of some output. CPU is divided into two parts- Arithmetic logic unit and control unit. On which Arithmetic logic unit is responsible for the processing of Arithmetic and logical operation and the control unit is have to control all the operation.
In a computer system there are five main components --
MonitorCPUkeyboardmouseMemoryOn which except CPU and Memory, all are the part of the input and output device. Memory and CPU are wrapped in one box known as the Processor device in which memory has to store the data and CPU has to process the data.
With 2020 Kicks’ Easy-Fill Tire Alert, what happens when the correct pressure is reached during inflation?
Answer:
THE HORN SOUNDS when the correct pressure is reached during inflation with 2020 kicks' Easy-Fill Tire Alert
Explanation:
Properly inflated tires are able to save up to 11 cents per gallon on gas and extend a tire’s life by over 4,000 miles, but it’s hard to know when the tires are at the proper pressure. Luckily, Nissan’s Easy-Fill Tire Alert system will take away the guesswork and help fill tires to the correct pressure every time—without needing a handheld pressure device!
First, park your vehicle and apply the parking brake.
Leave the ignition on (accessory mode) but keep the engine off
As you start to fill a tire, the exterior lights will flash to indicate that the system is monitoring the change in pressure
Once the tire meets the correct pressure, the horn will go off to tell you it’s done
If the tire is over-inflated, the horn will sound again, and the hazard lights will flash 3 times to tell you that you need to release some air
You are troubleshooting a Windows workstation that is having problems communicating with the host at IP address 1.2.3.4. What utility will you use at the command line to determine where the communication is stopping?
Answer:
Tracert 1.2.3.4 is the correct answer.
Explanation:
Tracert is the command that is used to trace the track of the packet of the Internet Protocol. That's why when the user troubleshoots their workstation and then the problem will occur at the time of conversation to the host's IP. So, that's why he using the following command of the to track route of the IP packets.
Data ____ travel over the Internet from router to router until reaching their destinations.
Answer:
Packets.
Explanation:
A data packet is a unit of data carried by a packet-switched network. Data Packets are transmitted along a given network path. Data travels across internet in packets. A packet can carry 1,500 bytes maximum. A packet contains a header and a footer which tells computers what type of data is in the packet, whats the source and destination of the data.
Transmission control protocol and internet protocol is a collection of communication protocols that for sending and receiving date using internet. TCP breaks the data into packets and maintains the network connection and IP deals with the sending and receiving packets from one computer to other using a process called IP Routing which determines the path for the packets to follow from one computer to the other. Once the packets reach their destination, TCP reforms them into their original state.
Some systems provide a small amount of dedicated memory built into the CPU that maintains a record of previous choices for each of several branch instructions that have been used in the program being executed to aid in determining whether a branch is likely to be taken. What are the contents of this memory called.
Answer:
Option (B) i.e., branch history table is the correct answer to the following question.
Explanation:
In the above question, some part is missing i.e., options which are:
a) look-ahead table
b) branch history table
c) branch prediction table
d) future speculation table
Because the branch history table maintains the records of the previous data or information and instructions also that are used after when it needed in the program or any other fields and it is the table of the shift register. So that's why the following option is correct. it also used design to store the previous data in the shift register.
Pressing ____ in the middle of a numbered list creates a new numbered paragraph and automatically renumbers the remainder of the list.
a.[Enter]
b.[Ctrl]
c.[Esc]
d.[Alt]
Answer:
Option a is the correct answer.
Explanation:
In an MS-WORD Document, when the user wants to write some line with the help of bullets or numbers then he needs to press enter when he had completed the first line and wants to proceed for the second line.
The question scenario also suggests the same which is described above. Hence Enter will fill the blank of the question statement. Hence Option 'a' is the correct answer while the other is not because--
Option b suggests about 'control' key, which is used to select or copy or cut if any other key is pressed with it.Option c suggests about 'ESC' key, which is an escape key used to escape some process.Option d suggest 'ALT' key, which is not used in MS-WORD Document for any purpose.he blinking vertical line that indicates where your text will appear when you type is called the ____.
Answer:
Insertion point
Explanation:
in software applications that require text input, the insertion point shows where the next text will be inserted, it appears as a blinking vertical line and can be moved by the use of arrow keys or mouse click on the desired location you want it to move to, while cursor on the other hand indicates where on the screen the user can send a command.
Natalie is responsible for the security of web servers and is configuring the WAF to allow only encrypted traffic to and from the web server, including from administrators using the command-line interface.
What should she do?
Answer:
Configured HTTPs forwarding to and from server and SSH
Explanation:
The HTTPs (secure hyper text transfer procotol) is an encrypted form of communicating packets between clients and servers. It has a port number of 443 with a high encryption policy. They are used to secure sites that request user details to prevent claiming of these information by attackers.
The SSH which is an abbreviation of secure shell is used to remotely connect to intermediate devices like routers and switches in a network. unlike its counterpart telnet, it is configured with an automatic encrypted channel with a private key. It also request for password and username.
Dexter needs to monitor the movement of a rover vehicle on Mars for one year. Which technologies should Dexter use for tracking purposes? Check all that apply.
Answer:
satellites that collect information about rover vehicle distance
space stations that store real-time data about rover vehicle speed
computer simulations that model how long it takes the rover to get to mars
Explanation:
All of the above answers are correct. Satellites are used, and so are space stations. The computer simulations are also being used in bulk. However, the telescope is not that powerful to be used. And that explains the above choices, as they are the technologies that are being used.
Answer:
hi your question lacks the options here is the complete question
Dexter needs to monitor the movement of a rover vehicle on mars for one year. which technologies should Dexter use for tracking purposes? check all that apply.
telescopes that show where the rover vehicle is located
satellites that collect information about rover vehicle distance
space stations that store real-time data about rover vehicle speed
computer simulations that model how long it takes the rover to get to mars
Doppler radar that records information about weather the rover is exposed to
The answer is
Telescopes that show where the rover vehicle is locatedDoppler radar that records information about weather the rover is exposed tospace station that store real-time data about rover vehicle speedExplanation:
Rover vehicles have been successfully sent to Mars from four different laboratories which are named Sojourner,spirit, opportunity and curiosity the weather condition in Mars varies from the poles of Mars to the center of the Mars closest to the Equator. the poles are cooler while the center which is closest to the equator is very hot. Rover vehicles are robotic vehicles sent to mars by scientists to understudy the different parts which the Mars is made up of.
The recent Rover vehicle which is of a car size with four wheels is named Curiosity.
The _______________ is a priority-ordered list of the other carrier networks and frequencies it should search for when it cannot locate its home carrier's network.
Answer:
The correct answer to the following question will be Preferred Roaming List (PRL).
Explanation:
A type of database be placed in any wireless device (used in CDMA mobile phones), that contain some information during the selection process of the system, termed as Preferred Roaming List (PRL).
It is used when your phone is connected to the network tower, provided and built by your carrier networks.
Hence, PRL is the correct answer.
Which of the following statements correctly instantiate the Rectangle object myRectangle? (i) myRectangle Rectangle = new Rectangle(10, 12); (ii) class Rectangle myRectangle = new Rectangle(10, 12); (iii) Rectangle myRectangle = new Rectangle(10, 12);
Answer:
The answer is "option iii" .
Explanation:
In the given question it is defined that a class "Rectangle" is defined in the class a parameter constructor is created that accepts two parameters. In this question, we create an instance of the class. In object creation first, we define class name then object name and use new keyword in the Instance of class and pass parameters.
In option i), An object name is used first and then class name. It is not correct. In option ii), In instance creation of the class, we do not use class keyword that's why it is wrong.
A(n) ____ allows others besides the manufacturer to develop software to run on the system or device.
Answer:
Application Programming Interface.
Explanation:
Application Programming Interface(API) is a collection of function, routines, procedures and the protocol which are used create a software application.The main role of API is that it defined or specified how the components of software will interact.
The objective of the Application Programming Interface that it the manufacturer or develop software that is running on system or device. The advantage of using the Application Programming Interface is that we can develop a better program in a very manner by using the API.
Josh, as an administrator for a health care company, is required to support an older, legacy application. He’s concerned about the application having some vulnerabilities that would affect the remainder of the network. Of the following, which option is the most efficient way to mitigate this?A) Use an application containerB) Implement SDNC) Run the application on a separate VLAND) Insist on an updated version of the application
Answer:
Use an application container.
Explanation:
Host operating system is software installed in a computer that interacts virtually with a server and also describes the difference between its software and a guest operating system.
It interacts with the hardware and works with atype 2 hypervisor which does not interact with the hardware but create virtual machine interfaces for multiple guest operating system to be installed, which are not necessarily the same as the host os.
Host os can also be used to describe operating systems that make use of container based virtualization. Containers are storage partitions used to hold applications separately on the same server, instead of replicating the operating system.
So with a container, Josh can separate the legacy application from other applications in the server.
What form of media has both challenged and been successfully co-opted by the traditional media?
A. streaming networks
B. social media
C. citizen journalism
D. cable television
Answer:
cable television
Explanation:
Cable television has both challenged and been successfully co-opted by the traditional media.
Gary is concerned about unauthorized people entering the company’s building. Of the following, which would be most effective in preventing this?A) Alarm systemsB) FencingC) CamerasD) Security guards
Answer:
D. Security guards
Explanation:
Physical security means to deny entry into any premises to unauthorized personnel in order to avoid any suspicious and hazardous situation. It is utmost important now a day due to critical law and order situation.
Options:
A. Alarm systems: Are not so reliable and smart because they can be tampered easily
B. Fencing: Might be a good option in a remote or rural location but in an urban area it would be very unpleasing sight and also it requires more space which is usually very limited
C. Cameras: It is a good option since it provides evidence in the form of video recording but the above objective will still not be achieved if there is no human intervention available at the premises to stop the intruder. Another problem is of CCTV is blind spots.
D. Security Guards: This option seems to be most reliable to get the job done. Security guard provides multi-sensory response and real time actions with prompt response. There are no blind spots in this case. Can be given tailored instructions unlike alarm systems.
You are replacing several laptop components to upgrade a customer's laptop computer. Which device ALWAYS involves the detaching and re-attaching of antenna connectors?
A. the screenB. Mini-PCIeC. the touchpadD. the wireless card
Answer:
A. The screen
Explanation:
The laptop is a miniaturized computer system that supports individuals in their daily activities. They are portable and cheaper than the normal computer systems.
Every component of the laptop is smaller in size and sometimes specifications than the desktop.
The screen is mounted on a foldable arm with the antenna of the wireless card fixed at the top of the fold.
So the antenna must be uninstalled for the screen to be uninstalled as well.
A _____ site gathers and organizes Web content, and may automatically downloads updates to subscribers.
A company website or a .com website could have content that might automatically download. I hope this helped.
Mike hands the hard drive containing suspicious content to the head of IT security at Bayland Widgets Co. The security guy requests a record of everyone who has been in possession of the hard drive. Given such a scenario, what document should Mike give the IT security chief?
Answer:
Chain of Custody is the correct answer to the following question.
Explanation:
Because chain of custody is that type of document which is gathered as the data from the scene, in other words it is an evidence which is collected/written during the investigation at crime scene and it is also known as the paper trail. And in the above question Mike handed the hard drive to the security chief that containing the important contents.
Although designed to support remote dial-in access to a corporate network, what service below is commonly used with 802.1x port security for both wired and wireless LANs?
Answer:
RADIUS is the correct answer.`
Explanation:
The following answer is correct because radius supports to access the remote dial-in to the network which is corporate and it is also used port 8021x for the wireless and the wired Local Area Network security. It is also supported to access the remote dial-in network that is wireless network. So, that's why the answer is true.
_____________ is an application development methodology with which developers create solutions by integrating one or more web services
Answer:
SOA (Service-oriented architecture)
Explanation:
SOA (Service-oriented architecture) is used to designing networks so that it works optimally in web services environment.
It allows achieving faster and quality environments with less cost. However they can be more complex than the other architectures.
SOA provides advantages in integrating processes and its usage is platform-independent.
Which layer of the tcp/ip model manages the transmission of binary digits across an ethernet cable?A . data link
B . Physical
C . transport
D . network
Answer:
The answer is "Option B"
Explanation:
TCP/IP layer also known as Network Access Layer. The physical is used to data transfer between two devices on the same network that will be carried out primarily through this layer. and other options are incorrect that can be described as follows:
In option A, data is information that uses by physical layer protocol that's why it is not correct. In option C, the transport layer aims to enable a conversation between devices in the source and the destination hosts. That's why it is not correct. In option D, In TCP/IP, the Network layer is known as the internet layer that's why it is not correct.java syntax allows programmers to use any expression of thei nt data type as an array subscript1. True2. Flase
Answer:
The answer is "Option 1".
Explanation:
In java programming language, Subscript is a numerical value between [ and ] which indicates the index of the object of which you like. The special [ and ] signs indicate the notation of the mathematic abonnement. So, x[1 ] and x[n-1 ] are used by Java rather than x0, x1, and x-1. That's why the answer to this question is "True".
Olivia manages wireless security in her company and wants completely different WiFi access (ie different SSID, different security levels, different authentication methods) in different parts of the company. What’s the best choice for Olivia to select in WAPs?
Answer:
The right answer is FAT WAP.
Explanation:
There are mostly two types of WAPs.
Fat WAP: Fat WAPs can be defined as an access point that can not be configured by switches. if the user uses multiple Fat AP then each Fat AP has to configured individually which means that it can give different SSID or passwords. Thin WAP: Thin WAPs can be defined as an access point which can be configured according to switch. which means Thin AP gives the same configuration while using multiple numbers.Hence according to the scenario, the most appropriate answer is FAT WAPs because it can be configured as a different WIFI set up in different parts of a company.
A _____ element is an element that contains one or more other elements, which are called child elements.
a. family
b. sibling
c. parent
d. descendant
Answer:
parent
Explanation:
A parent element is usually the outer element that contains one or more other elements, which are called child elements.
Consider the following HTML code:
<div id="parent">
<p id="childNumberOne"></p>
<p id="childNumberTwo"></p>
<p id="childNumberThree"></p>
</div>
The Three P are children of the parent div, and siblings of each other.
When you send an echo request message with the ping program, a successful attempt will return a(n) ______ message.
Answer:
echo reply
Explanation:
It is a test that a user performs to confirm that remote system is up and running on the network. This is needed when basic connectivity failure problem appears. Internet Control Message Protocol renders 2 messages for this service which are Echo Request and Echo Reply. Echo Request is a request sent to a destination device. This system acknowledges with an Echo Reply message. Echo request is generated by destination system with PING program. Ping program is used for testing basic connectivity. An echo reply is sent by target system to the requesting system acknowledging that the echo request has been received.
Which component of service-oriented DSS can be defined as data that describes the meaning and structure of business data, as well as how it is created, accessed, and used?
Answer:
The correct answer to the following question will be Metadata Management.
Explanation:
The management of data about the other data is known as Metadata Management. When the data is generated, updated, deleted, created, metadata is generated.
Benefits of Metadata management:
To locate data for a person, the metadata management make it easier.Project delivery become faster.Maintain information of organization.Hence, the Metadata Management will be the best suitable component which defined as the structure and meaning of business data.
Which wildcard character replaces a single character in the command-line interface?
Answer:
? (the question mark)
Explanation:
The asterisk (*) matches one or more occurrences of any character, but the question mark matches exactly one.