You have just installed a network adapter and have booted up the system, installing the drivers. You open Windows Explorer on a remote computer and don't see the computer on which you just installed the NIC. What is the first thing you check?
a. Has TCP/IPv6 been enabled?
b. Is the computer using dynamic or static IP addressing?
c. Are the lights on the adapter functioning correctly?
d. Has the computer been assigned a computer name?

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?

According to the video what are some tasks petroleum engineers perform check all that apply

Simon says is a memory game where "simon" outputs a sequence of 10 characters (r, g, b, y) and the user must repeat the sequence. create a for loop that compares the two strings. for each match, add one point to user_score. upon a mismatch, end the game. sample output with inputs: 'rrgbryybgy' 'rrgbbrybgy'