Which Linux command will securely delete a file by overwriting its contents?

A. rm -rf /

B. Shred

C. ps -rm D. del -rm

Nathan, an application developer, has taken over the lead developer's position and now will administer five other developers. The last lead developer was a programmer specialized in Xcode. Nathan is not familiar with Xcode at all, but will have to learn it to develop programs for company. Nathan come across some code left by the past developer: set this_file to choose file with prompt "Scale your image to 25%" try tell application "Image Capture Scripting" set this_image to open this_file scale this_image by factor 0.35 save this_image in this_file close this_image end tell on error error_message beep buttons {"Process failed")default button1 end try

A. Carbon

B. AppleTalk

C. AppleScript

D. Cocoa

What is the following PERL script trying to accomplish? sub mycode_string {

join(""

map('$_ > 255 ?

sprintf("\\x{%04x]", $_) :

chr($_) = ~ /[[:cntrl:]]/ ?

sprintf(\\x%02X", $_) :

chr($_)

} unpack("u*", $_[0]))l

}

A. Convert hexadecimal to Unicode

B. Display test as Unicode

C. Convert hexadecimal to text

D. Display Unicode as text

Darren has just been hired on as the SQL dba for Fredrickson Inc., a marketing firm in New York City. He has been asked to clearn up the SQL databases on one of the servers. What SQL stored procedure could Darren use to remove user accounts from the databases?

A. sp_revokedbaccess

B. sp_revokeusers

C. sp_removeoldusers

D. sp_denyaccess

What type of problem will result if the following statement is used?

int main()

{

short int a;

unsigned short int=b32768;

a=b;

printf( " a = %d", a);

b=65535;

a=b;

printf( " a = %d", a);

}

A. Truncation

B. Pointer subterfuge

C. Sign error

D. Function-pointer clobbering