$1$ MC All data items processed by computers are reduced to combinations of

and $.$

a$)$ ones, twos.

b$)$ zeros, ones.

c$)$ zeros, twos.

d$)$ None of the above.

$2$ MC Bytes are composed of bits.

a$)$ Ten.

b$)$ Six.

c$)$ Eight.

d$)$ Two.

$3$ MC To facilitate the retrieval of specific records from a file, at least one field in

each record is chosen as a $.$

a$)$ record key.

b$)$ file key.

c$)$ field key.

d$)$ None of the above.

$4$ MC When a Python program begins execution, Python creates three file

streams$$sys$.$stdin, sys$.$stdout and $.$

a$)$ sys$.$stderror.

b$)$ sys$.$exit.

c$)$ sys$.$stdfile.

d$)$ sys$.$stderr.

$5$ MC Function $,$ which receives one required argument and two

optional arguments, creates a stream object.

a$)$ create.

b$)$ open.

c$)$ write.

d$)$ buffer.

$6$ MC File$-$open mode opens a file to output data to the file.

a$)"$r$".$

b$)"$w$".$

c$)"$a$".$

d$)$ Both b and c$.$

$7$ MC If the file open$-$mode argument is not specified, the default value is

$.$

a$)"$r$".$

b$)"$w$".$

c$)"$a$".$

d$)$ None of the above.

$8$ MC When the symbol follows the print keyword, the print

statement redirects the output to the file object that appears to the right of the symbol.

a$)>>>.$

b$)-->.$

c$)-->>.$

d$)>>.$

$9$ MC The arguments to function seek are $($a required argument$)$ and

$($an optional argument$).$

a$)$ offset and seek direction.

b$)$ seek direction and location.

c$)$ file$-$position pointer and location.

d$)$ offset and file$-$position pointer.

$10$ MC The is an integer value that specifies the location in the file as

a number of bytes from the seek direction of the file.

a$)$ location.

b$)$ file$-$position pointer.

c$)$ offset.

d$)$ bit.

$11$ MC Instant access is possible with $($sometimes called direct$-$access

files$).$

a$)$ transaction files.

b$)$ ordered$-$access files.

c$)$ record$-$key files.

d$)$ random$-$access files.