University Of Illinois - Urbana-Champaign

Week 1 - Answer If you have a table with five fields and ten records, and you pivot three of the fields, how many records does the resulting table have? 7 records 10 records 13 records 30 records - Answer 30 records When you pivot three fields, then you would replace each record in the previous table with three records in the new table. Each of those three new records would not have the three pivotted fields, but would instead have a new field indicating the previous rec...

Which of the following is NOT considered a PaaS? Google AppEngine Amazon AWS Lambda Amazon Elastic BeanStalk Microsoft Azure App Service - Answer Amazon AWS Lambda Lambda is an example of a FaaS Which of these is not considered serverless computing? Platform as a Service (PaaS) Function as a Service (FaaS) Metal as a Service (MaaS) - Answer Metal as a Service (MaaS) MaaS requires its users to run services on bare metal i.e., configure the server yourself and hence is not ...

A segmentation fault is an example of a(n) _____________ page fault - Answer Invalid The _______________ has PID 1 and has several special properties - Answer init process When a file is removed from a directory, in reality _________________ - Answer One link to it is removed A process can send data to another process via __________________ - Answer A pipe When a user-space program needs to perform a privileged operation, it ________________ - Answer Exe...

Sink - Answer A node of a DAG with no exiting edges Spanning Tree - Answer A subgraph containing all vertices for a graph if it is connected Floyd-Warshall Algorithm - Answer Computes the shortest path between all pairs of vertices. O(n^3) time. Divide and conquer three steps - Answer 1. Divide, 2. Delegate, 3. Combine Increasing recursion subsequence runtime - Answer O( n^( log( r, c ) ) ) Forward Edge - Answer An edge (u,v) such that v is a de...

is every finite language regular? - Answer yes How to show exclusion in regular languages? - Answer R w what is the precedence order for regular expressions - Answer *, then concat, then + what is 1^+ - Answer at least one 1 How is a DFA defined? - Answer M = (Q,Sigma,Delta,s,A) what does δ*(q,w) mean? - Answer the transition function for strings, applies the transition to a string of chars How to get compliment languages - Answer ...

1. List the following forms of IPC from faster performance to slower performance: files, named pipes and memory mapped files - Answer Slow/Medium (FS or network involved): Files Fast (System Calls required like context switches): Named Pipes Very Fast (Virtual Memory Manager involved): Memory Mapped Files Slow/Medium IPC - Answer Files Fast IPC - Answer Named Pipes Really Fast IPC - Answer Memory Mapped Files What are named pipes? - Answer Named pipes ...

the medical examiner or coroner completes and signs the death certificate if the cause of death was an accident, suicide, or homicide, or if the attending physician is unavailable - Answer true health insurance statistics provide a generally representative picture of the health status of the US population - Answer false studies of the effects of exposure to teratogens have used data from - Answer birth certificates

four key mathematical terms are introduced - Answer • Ratio, Proportion, Percentage, Rate • All are related to basic epidemiologic measures pertaining to: • Frequency of disease in populations • Risks associated with exposures to disease agents counting and tabulating cases - Answer • Data cleaning: the review of data for accuracy and completeness • A clean data set contains a group of data that are ready for coding and analysis graphical presentations - Answe...

A disease that’s endemic to the Western Hemisphere is a. West Nile virus because we expect cases each year b. influenza because we are seeming more cases than expected c. Zika, because it was a widespread outbreak across the region d. Ebola, because cases occurred locally in Texas - Answer a.West Nile virus because we expect cases each year The focus on examining causal hypothesis regarding the association between exposures and a health condition is quintessential to - Ans...

What is the measure for an Ecological study - Answer correlation coefficient (R) What is the measure for a Cross-Sectional study - Answer prevalence What is the measure for a Case Control study - Answer odds ratio What is the measure for a Cohort study - Answer relative risk What is the measure for an Experimental study - Answer relative risk In which 2 studies do you look exposure and disease at the same point in time? - Answer ecological & cro...