Which of the following commands lists file attributes?
a. ls
b. ls -la
c. ls -l
d. ls -al
c. ls -l
Explanation: ls lists the basic files in the directory; ls -l lists file attributes; and ls -la or ls -al enables you to see hidden files in addition to the file attributes.
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Which of the following is true about a hash table?
a. A hash table has Big-O O(1) constant insert and search operation performance b. A hash table does not have duplicate data c. A hash table sorts the values d. A hash table has a separate linked list for the key and the value in the key-value pairs
A query that uses an aggregate function for data that can be grouped by two types of information and displays the data in a compact, spreadsheet-like format with column headings and row headings
a. Calculated query b. Parameter query c. Crosstab query
Marketers, such as VisiStat or Webtrends, are examples of online advertising networks.
Answer the following statement true (T) or false (F)
Which of the following commands is BEST to use when testing remote connectivity to a host?
A. win/s B. ping C. telnet D. ipconfig