Answer:
a. True
Explanation:
PC's sometimes runs slowly and on the long run cost money. Optimizing performance involves running software utilities that could restore speed and efficiency.
Scanning for malware/ virus , cleaning system registry, uninstalling unused program, deleting unnecessary files, disk defragment , updating of windows software and setting up the browser are ways to optimize your pc's performance.
Answer:
backup() {
read dirname;
if [[ whereis . /`$dirname` 2> sterr.exe]]
then
mkdir $dirname
for f in . / *.cpp
do
cp f "path_to_dirname"
echo "file backup complete"
}
backup( )
Explanation:
The bash script above is used to backup C++ source files in a directory to a backup directory which is created if it does not exist, and copy's each .cpp file to backup, then sends a message to declare its completion.
Answer:
C) the online catalog.
Explanation:
An online library catalog describes the periodicals, videotapes, and books as it is the electronic bibliographic database. This evolved from the printed source, the library card catalog. Hence, this clarifies that its C. the correct option.
However, LexisNexis is the unit that gives computer-assisted research CALR and business research as well as risk management services. So through this, you can get the legal and journalistic documents.
And the stack or the book stack which is referred to as the library building block is for book storage. And the library of Congress Subject Headings is active since 1898 and holds the catalog materials which are being collected by the Library of Congress, and they do not keep track of periodicals. And the BizMiner is for financial reports.
Hence, the correct answer is the C) the online catalog.
