Answer:
C) until the message has been communicated
Answer: a replay attack, a replay attack is used so that the attacker can go sniff out the hash, and get whatever they are trying to get, then once it goes to the attacker it will go back to the original connection after replaying the hash
Answer:
=IF(D3>50; E3; F3) and =IF(A1>60;"Pass";"Fail") are valid IF formulas.
Explanation:
P.S - The exact question is -
To find - Select the correct answer from each drop-down menu. Which IF formulas are valid? _____ and _____ are valid IF formulas.
FIRST BLANK
=IF(D3>50; E3; F3)
=IF(D3>50);( E3; F3)
=IF(10<5;23);("Incorrect")
SECOND BLANK
=IF(A1>60;"Pass";"Fail")
=IF(A1>60); ("Pass"; "Fail")
=IF(A1>60; ("Pass"; "Fail"))
Solution -
An IF structure is built following this pattern:
IF(TEST;IF TRUE;IF FALSE)
So,
The correct option is -
=IF(D3>50; E3; F3) and =IF(A1>60;"Pass";"Fail") are valid IF formulas.
Answer:
2. A data modelling project using a packaged data model REQUIRES A GREATER SKILL than a project not using a packaged data model.
Explanation:
1a. Review of universal models:
A data model is an abstract model that organizes elements of data and standardizes how they relate to one another and to the properties of real world entities. It has become the standard approach used towards designing databases.
A universal data model is a template data model that can be reused as a starting point or a building block to jump-start development of a data modelling project, industry specific model, logical data models.
1b. Discuss how these are being used more widely today.
*Universal data models helps professional reduce development time, improve consistency and standardization while achieving high quality models.
*Higher quality: just as architects consider blue prints before constructing a building, one should also consider data before building an app. A data model helps define the problem, enabling one to consider different approaches and choose best ones.
*By properly modelling and organization's data, the database designer can eliminate data redundancies (needless repetitions) which are a key source for inaccurate information and ineffective systems.
2. Greater and advanced skills are adequate and required when data modelling project is done using packaged data model while fewer skills are required when data modelling is done without packaged data model.
Answer:
<u>First test:</u> Give a list of disordered numbers to the sorting algorithm an examine if the output is correctly sorted.
<u>Second test:</u> Give a list of ordered numbers to the sorting algorithm an analyze if the output is still correctly ordered.
<u>Third test:</u> Give a list of ordered numbers and some non-numeric values to the sorting algorithm and check how is managed the exception in case of error or if the output is correctly ordered.
