If an ISP assigned you a /28 IPv4 address block, how many computers could you assign an address?
What will be an ideal response?
When an organization is assigned /28 CIDR address, it means 28 bits out of 32 bits are fixed,
so 32-28 = 4 bits available for user space. So number of users 2 4 -2 = 4, since the all 0s and all 1s
address are having special use and can’t be assigned to a user.
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A well-designed method ________.
a. performs multiple unrelated tasks b. repeats code found in other methods c. contains thousands of lines of code d. performs a single, well-defined task
Which of the following statements is false?
a. The following session uses built-in function filter to obtain the odd values in numbers: In [1]: numbers = [10, 3, 7, 1, 9, 4, 2, 8, 5, 6] In [2]: def is_odd(x): ...: """Returns True only if x is odd.""" ...: return x % 2 != 0 ...: b. Python functions are objects that you can assign to variables, pass to other functions and return from functions. Functions that receive other functions as arguments are a functional-style capability called higher-order functions. Higher-order functions may also return a function as a result. c. Function filter’s first argument must be a function that receives one argument and returns True if the value should be included in the result. d. Function filter returns an iterator, so filter’s results are produced immediately.
The Notes pane is located above the Slide pane and is an area where you can type notes and additional information.
Answer the following statement true (T) or false (F)
If your data has a unique identifier that is a natural part of your data, you can use the field as a natural primary key
Indicate whether the statement is true or false