Answer:
Hello there! There are 4 parts to this question, all regarding relational database concepts.
Explanation:
Parts 1, 2, 3, 4 are drawn in attachments. For Part 4, the "foreign keys" would be the id fields of the joining table, and the "primary keys" are the IDs of the table itself. Data types are "integer" for ID, "string" for text columns like Name and Location, and "Decimal" for Hourly rate in the Timesheet table. Note that we can further simplify the erd from the one constructed earlier in part 3 to remove the Project Manager model and instead add a Project Manager "boolean" flag in the Employee table since a Project Manager is also an Employee.
Value or power of a network grows exponentially as a function of the number of network members. this is known as Metcalfe's law. According to this law <span>the value (the power) of a </span>telecommunications network<span> is </span>proportional to the square of the number of connected users of the system (network members). Metcalfe's Law <span>characterizes many of the </span>network effects<span> of communication technologies and networks such as the </span>Internet<span>, </span>social networking<span> and the </span>World Wide Web<span>.</span>
<span>It should be single-user/multitasking os.</span>
Answer:
False.
Explanation:
The description provided matches better with Software performance testing, and shouldn't be confused with a benchmark.
In computing, a benchmark is a tool or software designed to measure the average performance of another program, by running several tests and trials against it.
A performance testing is designed to measure the performance and responsiveness of a computer system (not a program) under a heavy workload.
