Consider the abstract superclass below:
public abstract class Foo
{
private int a;
public int b;

public Foo( int aVal, int bVal )
{
a = aVal;
b = bVal;
} // end Foo constructor

public abstract int calculate();
} // end class Foo

Any concrete subclass that extends class Foo:
1) Must implement a method called calculate.
2) Will not be able to access the instance variable a.
3) Neither (a) nor (b).
4) Both (a) and (b).

Answer:

Three Years

Explanation:

Tennessee firms are required to keep written records of all real estate transactions for at least 3 years after closing or termination to avoid any unforeseen risk in future.

Answer:

The permission that Kevin's Google account will need to link Firebase to google Ads is "Owner Role" in firebase

Explanation:

There are three primitive roles on IAM for firebase. They are; Owner, editor and viewer.

The viewer Role is for read-only actions

The editor role has all the viewer role permissions plus permission to change state and resources

The Owner role has all editor permissions plus the permissions below;

1) Manage roles and permissions for a project and all resources within the project.

2)Set up billing for a project.

3) Delete or restore a project.

Answer:

Dollar sign ($)

Explanation:

When working with formulas in microsoft excel, we may find ourselves copying formulas accross different cells, this is done by cell referencing and there two types of cell references, the absolute and relative. An absolute reference to a cell simply means that the cell is "locked" and its rows and columns are not going to change when they are copied. So when an absolute referenced formula is copied to another cell, it remains constant. This is unlike the relative reference where the formula changes relative to the new location where it is copied to. To accomplish an absolute reference, the dollar sign ($) is placed in the front of both the letter and number representing the column and row respectively like this $A$5.

An absolute cell reference in Excel can be created by placing a $ symbol before both the column letter and the row number of the cell address, such as $A$1.

In Excel, you can create an absolute cell reference by placing a $ symbol in front of both the column letter and the row number of the cell address. For example, if you would like to make cell A1 an absolute reference, you would write it as $A$1. This means that no matter where you copy and paste this formula, it will always refer to cell A1. The use of $ keeps the reference constant, or 'absolute).

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Answer:

Enabled

Explanation:

the enabled property is found in visual basic integrated development environment, it determines whether the object or form element either appears or not when the program starts.

Answer:

Driver group

Explanation:

Driver group can be used to restrict the driver packages installed by specific client computers, based on factors such as the BIOS, manufacturer, model, or OS edition used by the device.

Answer:

Insert

Explanation:

Insert Picture in Power Point Presentation:

Step 1: Click in the slide where you want to insert the picture.

Step 2: Go to insert picture dialog box and click the ‘insert’ tab on the Ribbon  

Step 3: Click the pictures button in the Images group

Step 4: You are done!

Answer:

A

Explanation:

Answer:

6720 lock codes

Explanation:

The numbers to be chosen from are:

0 1 2 3 4 5 6 7 8 9

The odd numbers are five in number which are: 1 3 5 7 9

The even numbers are five in number which are: 0 2 4 6 8

If the first number is odd, therefore, it can be chosen in five ways

After the first number is chosen, there are 4 left odd numbers so the last number can be chosen in four ways.

There are 8 left numbers after they are chosen, so the second number can be chosen in eight ways

Third number can be chosen similarly, in seven ways

Fourth number can be chosen in six ways

Hence, the number of different combinations are:

5*4*8*7*6 = 6720 combinations

Answer:

Trackpoint

Explanation:

A trackpoint is a joystick type of control meant to be used in moving the pointer like the mouse, it was invented by IBM and made it commercially available in 1992, even though the trackpoint is not seen on new laptops but it still exists on some laptops like the Lenovo Thinkpad series.

The disadvantage of the trackpoint is that it provides less accuracy.

Answer:

Reference value.

Explanation:

Answer:

Option (b) is the correct answer.

Explanation:

"Drafts" is a folder of messaging software or mail software whose works are to save the message until the user does not want to send it. So to send the message from drafts, the user needs to edit the message first then he can able to send that message. The above question asks that how a user can send the draft message. Option b suggests that a user needs to click send to send the draft message.

Hence it is a right option while the reason behind the other option is invalid are as follows--

Answer:

View Base tables: Virtual table based on a SELECT query

CREATE VIEW statement: Data definition command that stores the query specification in the data dictionary

DROP VIEW statement: Data definition command that removes the query specification in the data dictionary

Explanation:

Views are virtual tables, which can be created by select queries using the real database tables.

Creating and dropping views can be done by the CREATE VIEW and DROP VIEW statements.

CREATE VIEW syntax:

CREATE VIEW view_name AS

SELECT column1, column2, ...

FROM table_name

WHERE condition;

DROP VIEW syntax:

DROP VIEW view_name;

Answer:

The answer is "Option b".

Explanation:

In the given question, a function "search" is defined. That searches element that is passed in the function by parameter. To search more quickly we must add another parameter in the function. and other options are not correct that can be described as:

Answer:

B. Longer passwords

Explanation:

If the password is longer, it requires more incorrect attempts to find it, so the system could identify a potential hacker attempt. Smaller but more complex passwords could be identified by mistype or forgotten passwords.

Answer:

e. search engine optimization

Explanation:

Search Engine Optimisatization (SEO) is the process of improving the visibility of a website with on the web. By providing high quality and relevant content for a website organic/unpaid traffic can be increased as the website will appear at the top of the query results of a web search engine. SEO involves the use of keywords that are likely to be used by clients when they query a search engine such as Google. These keywords help a website to improve its rankings and appear at the top of the search results. This is a critical function in marketing organizations as it directs the target customers to the website.

Answer:

Same Browser

Explanation:

If we access some password for some website in from some computer. It will be saved in the browser of the computer. Whenever we access the website from some other computer and we want to login we need the same browser.

In this process, browser is sync by using our mailing address. Whenever we want to access the pasword of different website from some other device, we need to sync that device browser with the same mailing address.

In this process all password that are saved on other device may access from any device.

Answer:

A. CSR

Explanation:

CSR, (certificate signing request also known as certification request, CR) are messages sent by an applicant to a certificate authority to acquire a digital identification certificate or renew an already existing one. It contains information of the client or applicant like domain name, public key etc.

Keyescrow, CRLD and OCSP are not recommended or required for renewing digital certificate as they commands or settings for shortcuts and commands.

Answer:

Express different genes

Explanation:

Basically DNA is written into RNA which is later converted into proteins, gene expression involves the heritable data in a gene and DNA arrangement being made into a gene product like Protein. the cells in the muscle and nerves have different way of gene expression.

Answer: Radio-frequency identification (RFID)

Explanation:

Radio-frequency identification (RFID) tags are defined as components that  are used for tracking of items. This device is based on technology of radio-frequency along with antenna and RFID(Radio-frequency identification) reader.

Answer:

B) Require more processing by each computer in the network than in star and ring networks

Explanation:

Meshnet which refers to mesh networks is one of the topologies of computer networks. In this topology, the nodes are all connected directly to each other and to as many many other nodes that cooperate with each other (nodes here refers to PCs, bridges routers etc), this kind of connection prevents dependence on a single node for communication as all nodes participates in the passing of information, as a result each computer in a mesh requires more processing work than in star and ring networks.

None of the provided options directly answers the question due to a misunderstanding or a potential typo since they involve assigning "rigatoni" instead of "lasagna" and none select Tuesday correctly based on zero-based indexing for days of the week in programming.

The question involves assigning the daily special of lasagna to Tuesday in a programming context, likely using an array to manage menu items by day of the week. Arrays in programming are zero-based, meaning the first element is at index 0. Therefore, Tuesday, being the second day of the week under conventional standards starting with Monday, would be at index 1 in the array. However, none of the given options directly mention "lasagna" or Tuesday explicitly, so we must infer based on standard array indexing and typical syntax for assigning values in programming languages like Python or Java.

Given the options, however, none correctly assigns "lasagna" to Tuesday due to the mix-up in the days and the item mentioned. The correct approach to assign "lasagna" to Tuesday would look something like strSpecial[1] = "lasagna", considering a hypothetical array strSpecial where days of the week are mapped to menu items. Since this option is not available, it points to a possible typo or error in the question's formatting.

Answer:

The answer is C.

W

WA

WAT

WATC

Explanation:

When the recursive method is called using whatsItDo("WATCH"), it works like this:

First the length of the argument is gotten and assigned to len.

Next if the length is greater than 1, execution enter the defined block

Inside the block, a substring is created from the beginning to less than 1 the end (0 to len - 1) and it is assigned to temp.

Then, the method is called again with whatsItDo("WATC").

The iteration continue and the next called method is whatsItDo("WAT"), followed by whatsItDo("WA"), followed by whatsItDo("W").

When whatsItDo("W") is called the condition will fail. So, the execution will pick up from:

whatsItDo("WA") where "W" will be displayed, then

whatsItDo("WAT") where "WA" will be displayed, then

whatsItDo("WATC") where "WAT" will be displayed, then

whatsItDo("WATCH") where "WATC" will be displayed.

And the program will finished execution.

Final answer:

The recursive method whatsItDo prints each substring of "WATCH" after each recursive call, resulting in 'WATC', 'WAT', 'WA', and 'W' being printed in that order, corresponding to option (A).

Explanation:

The recursive method described in the question prints a series of progressively shorter substrings of the original string "WATCH". This is because each recursive call to whatsItDo removes the last character from the string and prints the substring after making the recursive call. The method stops making recursive calls once it reaches a substring with a length of 1, and as the recursive calls return, it prints each of the substrings starting from the shortest to the second longest.

Thus, when whatsItDo("WATCH") is called, the output will be a series of substrings without the last character:

This corresponds to option (A) as follows:

Answer:

The answer is "Teredo".

Explanation:

Teredo is a technology for the transfer of the complete IPv6-enabled hosts, that are IPv4-based but, have no native IPv6 network connections. Teredo is an Internet switch, it was confusing because there is no reputation-based explanation.

Answer:

The answer is -rw-rw-r--

Explanation:

This is a permission string which refers to read and write (modify) permissions to owner and group only and read only permission for all others.

There are three types of permissions: read (r), write(w), and execute(x).

In the above string, r stands for read and w stands for write permissions. Read (r) permission allows the contents of the file to be viewed.

Write (w) permission allows modification of the contents of that file. It gives permission to edit (e.g. add and remove) files.

The first dash "-" refers to the type of file. The next rw- define the owner’s permission to the file. so the owner has permission to read and write a file only. The next rw- refers to the group permission. The members of the same group have permission to read and write a file only just as the owner. The last r-- means that all other users can only read/ view the file. In the first rw- the "-" means to remove or deny access. This means owner is granted permission read and write the file only but he cannot execute (x) the file contents. 2nd rw- means the same but for group and lastly there are two "--" after r. The first "-" denies write access and second one denies execute access.

Answer:

Guest to host interaction means that, virtualized operating system is guest and computer system is host. The virtualized operating system is making interaction with computer by using its hardware resources such as storage and CPU, it is also known as host.

Explanation

To make sure the interaction between virtualized operating system and their hyper visors, following steps would be needed.

It is also necessary to monitor the activities between guest and host.

Answer:

Structural unemployment is the correct answer.

Explanation:

Because there is a large amount of the semi-skilled labors or workers in the industries and they find ourselves out of work because of the new technologies that execute their jobs by which those workers become obsolete. So, that's why these workers face the experience of structural unemployment which creates a higher rate of natural unemployment.

Answer:

The answer is "LSS(Local Security Settings)".

Explanation:

The LSS stands for Local Security Settings, it is a set of information about the security of a local computer. LSS allows a feature, that the information on the protection of a local computer is a local safety policy of a device.

The answer would be true. Firewall rules define what kind of Internet traffic is allowed or blocked. ... A firewall rule consists of firewall services , which specify the type of traffic and the ports that this type of traffic uses. For example, a rule called Web browsing has a service called HTTP, which uses the TCP and port number 80.

Answer:

The correct answer to the following answer will be Speed.

Explanation:

The other three options A, C and D can't be the features of network connection as they are not related to the given statement.

Answer:

A  mesh network design

Explanation:

In designing local area networks, we can follow one of several network topologies, some of these are; bus, star, ring, star-ring hybrid, mesh, etc. In a mesh topology,  all the PCs are inter-connected to each other such that the computers do not send signals, they also act as signal relay to others within the network, considering that in this question scenario the goal is to acheive maximum uptime at all locations, a mesh design will be the best.

Final answer:

For a private WAN with maximum uptime, a mesh topology should be used due to its redundancy, with a full mesh offering the highest resilience. However, due to potential high costs, a partial mesh might be deployed, prioritizing critical connections and possibly using Quality of Service features for additional reliability.

Explanation:

If you are consulting for a company that needs a private Wide Area Network (WAN) with maximum uptime between its five locations spread throughout a city, the most robust design you should recommend is a mesh topology. A mesh topology provides each location with a direct connection to every other location. This redundancy means that if any single connection fails, the network communication can still proceed uninterrupted via alternative routes. For even greater resilience, you could consider a full mesh design, where each node has a direct connection to each other node, ensuring the highest level of redundancy and uptimes.

However, full mesh networks can be costly due to the high number of links and networking equipment required. An alternative with a balance of cost and resilience would be a partial mesh network, where not all systems are directly connected, but there are still enough interconnections to maintain communication in case one or a few links go down. It is essential to evaluate the criticality of each site to determine which connections are most necessary. Additionally, implementing Quality of Service (QoS) features and having backup links for the most critical connections will further enhance the network's robustness.

Answer:

Option B is the correct answer for the above question

Explanation:

XHTML is an advanced version of HTML language which is recommended by W3C. It set the standard in 26-JAN-2000 for the XHTML which belongs to the family of HTML. XHTML is made with the help of XML and also used like XML. It used to create more secure websites.

The Above question asked about the W3C recommendation but the above paragraph described that XHTML is a W3C recommendation. Hence Option B is the correct choice answer. while the other is not because--