By collecting software metrics and making use of existing software reliability models it is possible to develop meaningful guidelines for determining when software testing is finished.
A) TRUE
B) FALSE
Regression testing should be a normal part of integration testing because as a new module is added to the system new
A) control logic is invoked
B) data flow paths are established
C) drivers require testing
D) all of the above
E) both a and b
Regression testing should be a normal part of integration testing because as a new module is added to the system new control logic is invoked and data flow paths are established.
What is regression testing?Regression testing is a software testing practice which ensures that an application is still functioning as it need to or expected after making any code changes or improvements. Regression testing checks for the overall stability and functionality of the existing features of the software.
Now, the Regression testing is integrated with the software so that if any changes are made, new control logics are automatically invoked and data flow path is established.
Thus, the correct option is E. i.e. both A and B.
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________ is a collection of many separate networks.
A) A WAN
B) An internet
C) a LAN
D) None of the above
Antel and imd both produce similar computer chips and the two companies dominante this
Answer:
Because it will restrict the supply of computer chips
Explanation:
Antel and imd both produce similar computer chips and the two companies dominante this
Because they can both charge more for the product at the given level of production
Because it will restrict the supply of computer chips
Because overall demand for computer chips will increase
Because the firms' marginal costs increase as output increases
As both companies have the total supply of the product in the market they can dominate everything that they are providing because of this, they cab restrict the supply of the computer chips, if they cooperate and work together they can set a minimum price and a ceiling price, they can dictate how the market flows, because of that, the price of the computer chips will depend solely on them.
Acceptance tests are normally conducted by the
A) developer
B) end users
C) test team
D) systems engineers
B: End Users
That is the correct answer
Given the ip address 192.168.112.0. each network requires between 35 and 60 hosts. what is the broadcast address of the first available subnet?
What object type would you use to identify the address of the neighbouring gateway from your local gateway?
Which topology requires a central controller or hub?
A) Mesh
B) Star
C) Bus
D) Ring
Each component of a network is connected to a central node, frequently referred to as a hub or switch, in a star architecture. Thus, option B is correct.
What topology requires a central controller or hub?A benefit of star topologies is that just the central site needs to be modified, making it simple to add new sites. The centre site is crucial in a star topology; if it fails, all connections would be lost. The connection's performance is determined by how well the central hub functions.
A star network is a local area network (LAN) topology in which all nodes, such as personal computers (PCs), workstations, or other devices, are directly connected to a single common hub, which is frequently referred to as a central computer. As a result, a hub-and-spoke network structure is another name for a star network.
Therefore, Star topology requires a central controller or hub.
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Assign True to the variable has_dups if the string s1 has any duplicate character (that is if any character appears more than once) and False otherwise.
Here is the answer I wrote:
i = []
for i in range(len([s1])):
if s1.count(s1[i]) > 1:
has_dups = True
elif s1.count(s1[i]) = 1:
has_dups = False
Here is the message I got from the system:
Solutions with your approach don't usually use: elif
Please Help me to correct it.
When mapping a drive, you can type in the path to the shared folder on the host computer. what is the syntax for the path?
How many passwords can be created in the form [a - z][a - z]9[0, 1]6? that is, a capital letter followed by 9 lowercase letters followed by 6 bits.?
Word typically provides how many types of main documents.
Which of the following strategic issues needs to be addressed in a successful software testing process?
A) conduct formal technical reviews prior to testing
B) specify requirements in a quantifiable manner
C) use independent test teams
D) wait till code is written prior to writing the test plan
E) both a and b
The strategic issues that should be addressed for a successful software testing process include the conducting of a formal technical reviews prior to testing and specifying the requirements in a quantifiable manner.
The test strategy has to do with the testing approach of the development cycle of the software and its aim is to ensure that the objectives of the software are met.
It should be noted that using independent test teams and waiting till the code is written prior to writing the test plan doesn't need to be addressed in a successful software testing process.
Therefore, the correct option is E since both option and B are correct.
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Below is a list of 32-bit memory address references, given as word addresses.
3, 180, 43, 2, 191, 88, 190, 14, 181, 44, 186, 253 5.2.1
a) For each of these references, identify the binary address, the tag, and the index given a direct-mapped cache with 16 one-word blocks. Also list if each reference is a hit or a miss, assuming the cache is initially empty.
b) For each of these references, identify the binary address, the tag, and the index given a direct-mapped cache with two-word blocks and a total size of 8 blocks. Also list if each reference is a hit or a miss, assuming the cache is initially empty.
This problem requires converting decimal memory addresses to binary, identifying the tag and index for a direct-mapped cache, and determining hits and misses for each reference.
Explanation:Cache memory operations and management are central to the performance of computer architecture. This problem involves understanding how the direct-mapped cache works, converting decimal addresses into binary, and determining cache hits and misses.
Part a)In a direct-mapped cache with 16 one-word blocks, the memory address is split into tag and index. The index needs 4 bits (since there are 16 blocks, and 2^4 = 16) and the remaining higher order bits are the tag. A cache hit occurs if the current address's tag matches an address's tag already stored in the cache with the same index. Initially, the cache is empty, so the first reference will always be a miss.
For example, the word address 3 in binary is 00000000000000000000000000000011. With the least significant 4 bits as the index (0011), the tag would be the remaining bits (all zeros here). As the cache starts empty, this would be a miss. As references are processed, some will be hits if their tags and indices match any previously stored addresses.
Part b)For a direct-mapped cache with two-word blocks and a total of 8 blocks, we have to take into consideration that each block now stores two words. The index field will now have 3 bits (since 2^3 = 8). Since the block size is two words, the lowest order bit of the address is used to determine the word within a block, and this bit is not part of the index.
As a result, the memory addresses will have their last bit ignored for the index and tag calculation (e.g., word address 3 becomes binary 11, and after dropping the least significant bit for the block offset, we are left with an index of 1 (binary 01) and the rest as the tag). Starting with an empty cache, each address will result in a miss initially and then we'll determine hits or misses based on whether the cache already has the block with the same tag and index.
Devices may be arranged in a _____ topology.
A) mesh
B) ring
C) bus
D) all of the above
Answer:
ring
Explanation:
Devices can be arranged in different network topologies such as mesh, ring, and bus. The correct answer is D) all of the above.
Devices may be arranged in various network topologies such as mesh, ring, and bus. Each of these topologies has its unique structure:
Mesh topology: In this setup, each node is connected to every other node, providing a high level of redundancy and reliability.Ring topology: Each node is connected to two other nodes, forming a closed loop which allows data to travel in one direction or both directions efficiently.Bus topology: All devices are connected to a single central cable, known as the bus, making this a straightforward and cost-effective setup.All of the above: This means that devices can indeed be arranged in any of these topologies.The correct answer is D) all of the above, as devices can be arranged in any of these network topologies.
What two tasks need to be done after installing a secondary hard drive?
The method needed to arrange for an object to be notified when a window's close-window button has been clicked is
Which of the following is an approach to debugging?
A) backtracking
B) brute force
C) cause elimination
D) code restructuring
E) a, b, and c
The following is an approach to debugging:
A) backtracking
B) brute force
C) cause elimination
There are different approaches to debugging a Software Applications, these are:
Brute Force Method: This method commonly used but it has the least efficiency for isolating the cause of a software error.Back Tracking Method: This method is commonly used for small applications.Cause Elimination: The approach involves induction or deduction.Find out more at: https://brainly.com/question/23959780
Debugging is not testing, but always occurs as a consequence of testing.
A) TRUE
B) FALSE
It is true to say that Debugging is not testing but always occurs as a consequence of testing.
What is Debugging?Debugging is the process of identifying and fixing defects in computer programs, software, or systems. It is a crucial step in computer programming and software development.
Debugging is used to identify and correct errors. The testing procedure just displays the consequences of the coding fault on the application; it does not assist the developer in identifying the mistake in the code.
Software developers and engineers use debugging to find and correct bugs in programs before making them available to the general public. It's an additional step to testing, which entails discovering how an issue impacts a program as a whole.
Debugging is the act of locating and fixing problems in software code that might lead to unexpected behavior or crashes. These mistakes are sometimes referred to as "bugs." Debugging is used to identify and fix faults or flaws in software or systems so that they don't operate incorrectly.
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Why are words like monkey, smile, and freedom not good to use as passwords??
A(n) ____ is a front-end processor that multiplexes the traffic from hundreds of remote terminals into one port on a large computer.
A circuit has a voltage of 24 V and a current of 40 mA. What is the power of the circuit?
A. 6 W
B. 9.6 W
C. 6.24 W
D. 0.96 W
How should traffic flow be captured in order to best understand traffic patterns in a network?
A ______ is a data communication system spanning states, countries, or the whole world.
A) MAN
B) LAN
C) WAN
D) none of the above
A WAN is a data communication system spanning states, countries, or the whole world. Thus, option C is correct.
What is data communication?
Data communication is the process of sending messages or data through two devices across a wireless medium, as it is in computer systems. A combination of hardware and connectivity is used in this procedure.
A communications system known as a large area network covers a huge geographic region. Leased telecommunications lines are frequently used to construct large-area networks.
Since this includes numerous stations dispersed across a particular bregion, or perhaps the entire world, it is known as a wide-area network. This was to ensure that the data can be reached, by multiple users.
Therefore, option C is the correct option.
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well maintained websites may have an unmaintaned page that has not been updated
i have a couple of questions on java for my homework
21229
Assume the availability of a method named makeLine that can be passed a non-negative integer n and a character c and return a String consisting of n identical characters that are all equal to c. Write a method named printTriangle that receives two integer parameters n andk. If n is negative the method does nothing. If n happens to be an even number, its value is raised to the next odd number (e.g. 4-->5). Then, when k has the value zero, the method prints a SYMMETRIC triangle of O's (the capital letter O) as follows: first a line of n O, followed by a line of n-2 O's (indented by one space), and then a line of n-4 O's (indented by two spaces), and so on. For example, if the method received 5,0 (or 4,0) it would print:
OOOOO
OOO
O
Note: in the above output , the first line contains 0 spaces before the first O, the next line 1 space, and so on.
Note: These instructions state what the method does when k is zero, but it is up to you, the programmer, to determine what it does when k is not zero and use it for your advantage.
The method must not use a loop of any kind (for, while, do-while) to accomplish its job. The method should invoke makeLine to accomplish the task of creating Strings of varying lengths.
20861
A palindrome is a string that reads the same forwards or backwards; for example dad, mom, deed (i.e., reversing a palindrome produces the same string ). Write a recursive, boolean -valued method , isPalindrome that accepts a string and returns whether the string is a palindrome.
A string , s, is a palindrome if:
s is the empty string or s consists of a single letter (which reads the same back or forward), or
the first and last characters of s are the same, and the rest of the string (i.e., the second through next-to-last characters ) form a palindrome.
20864
A 'array palindrome' is an array which, when its elements are reversed, remains the same (i.e., the elements of the array are same when scanned forward or backward) Write a recursive, boolean -valued method , isPalindrome, that accepts an integer -valued array , and a pair ofintegers representing the starting and ending indexes of the portion of the array to be tested for being a palindrome. The function returnswhether that portion of the array is a palindrome.
An array is a palindrome if:
the array is empty (0 elements ) or contains only one element (which therefore is the same when reversed), or
the first and last elements of the array are the same, and the rest of the array (i.e., the second through next-to-last elements ) form a palindrome.
XML Schemas consist of:
A.
properties and methods.
B.
elements and attributes.
C.
structure and data.
D.
tables and relationships.
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9.
The expression FOR XML RAW tells SQL Server to:
9.
A.
place the values of the columns as attributes in the resulting XML document.
B.
place the values of the columns into elements rather than attributes.
C.
place some columns into elements and others into attributes.
D.
None of the above is correct.
The _____ address range is reserved for a computer to communicate with itself and is called the loopback.
which of the following is the default letter assigned for the primary hard drive
the internet is an example of
a. a large multi user program
b. a computer program
c. wireless connection
d. mass file storage
The internet is an example of a large multi-user program. Thus the correct answer is A.
What is the internet?The Internet is refers to a Network of thousands of computers used to connect people from miles away. This has shortened the distance between people.
It helps to communicate, do online shopping, education, research, play games, animations, and so on. It allows many people to connect over the program.
Therefore, option A a large multi-user program is the appropriate answer.
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