ENSF 461 MIDTERM COMPREHENSIVE
STUDY GUIDE 2026 FULL QUESTIONS
AND SOLUTIONS GRADED A+
◍ Piping ( | ).
Answer: pass the output of the command on the left as input of the
command on the right.
◍ ls -1.
Answer: displays the output in a single column
◍ grep.
Answer: searches for lines containing whatever input you give it in the
specified file
◍ What is the date and time range for Midterm 1?.
Answer: Thursday Feb 19th at 8pm - Sunday Feb 22nd at 11:45 pm (CT)
◍ How long do students have to complete the exam?.
Answer: 2 hours
◍ What is the penalty for late submission of the exam?.
Answer: -10 points per minute
◍ wc -l.
Answer: counts the number of lines in the output or file
◍ wc.
Answer: returns the number of lines, words and bytes in the file
◍ standard output.
Answer: output stream printed on the terminal
◍ standard error.
, Answer: basically standard output, just used for error messages
◍ What materials are permitted during the exam?.
Answer: 1 sheet of paper for reference notes, physical calculator, and blank
scratch paper.
◍ What type of questions will be on Midterm 1?.
Answer: Primarily short-answer questions, with some multiple-choice,
matching, and true/false.
◍ standard input.
Answer: input stream, receiving input from terminal
◍ Will Stata be required for the exam?.
Answer: No, but you may need to interpret or use Stata output.
◍ What must students submit along with their exam?.
Answer: Reference notes and scratch work.
◍ What is the deadline for submitting reference notes and scratch work?.
Answer: Within 30 minutes after submitting the exam.
◍ write(int fd, const char* buf, size_t count).
Answer: writes data to a file parameters: (int fd: 1 for standard output, 2 for
standard error,const char* buf: a pointer to the data you want to write, size_t
count: the number of bytes you want to write from the 'buf' to the file)
◍ What should students do if they encounter technical issues during the
exam?.
Answer: Contact ProctorU or the Teaching Support Team directly.
◍ read(int fd, const char* buf, size_t count).
Answer: reads data from a fileparameters: (int fd: 0 for standard input, const
char* buf: the pointer to the buffer that the data you read will be stored,
size_t count: the maximum you can read into buf)
◍ What is the official proctoring platform for the exam?.
Answer: ProctorU and Guardian Browser.
STUDY GUIDE 2026 FULL QUESTIONS
AND SOLUTIONS GRADED A+
◍ Piping ( | ).
Answer: pass the output of the command on the left as input of the
command on the right.
◍ ls -1.
Answer: displays the output in a single column
◍ grep.
Answer: searches for lines containing whatever input you give it in the
specified file
◍ What is the date and time range for Midterm 1?.
Answer: Thursday Feb 19th at 8pm - Sunday Feb 22nd at 11:45 pm (CT)
◍ How long do students have to complete the exam?.
Answer: 2 hours
◍ What is the penalty for late submission of the exam?.
Answer: -10 points per minute
◍ wc -l.
Answer: counts the number of lines in the output or file
◍ wc.
Answer: returns the number of lines, words and bytes in the file
◍ standard output.
Answer: output stream printed on the terminal
◍ standard error.
, Answer: basically standard output, just used for error messages
◍ What materials are permitted during the exam?.
Answer: 1 sheet of paper for reference notes, physical calculator, and blank
scratch paper.
◍ What type of questions will be on Midterm 1?.
Answer: Primarily short-answer questions, with some multiple-choice,
matching, and true/false.
◍ standard input.
Answer: input stream, receiving input from terminal
◍ Will Stata be required for the exam?.
Answer: No, but you may need to interpret or use Stata output.
◍ What must students submit along with their exam?.
Answer: Reference notes and scratch work.
◍ What is the deadline for submitting reference notes and scratch work?.
Answer: Within 30 minutes after submitting the exam.
◍ write(int fd, const char* buf, size_t count).
Answer: writes data to a file parameters: (int fd: 1 for standard output, 2 for
standard error,const char* buf: a pointer to the data you want to write, size_t
count: the number of bytes you want to write from the 'buf' to the file)
◍ What should students do if they encounter technical issues during the
exam?.
Answer: Contact ProctorU or the Teaching Support Team directly.
◍ read(int fd, const char* buf, size_t count).
Answer: reads data from a fileparameters: (int fd: 0 for standard input, const
char* buf: the pointer to the buffer that the data you read will be stored,
size_t count: the maximum you can read into buf)
◍ What is the official proctoring platform for the exam?.
Answer: ProctorU and Guardian Browser.
