Which of these is NOT a card bus type?

Which of these is NOT a card bus type?

• SOX
• ISA
• AGP
• PCI 

 

EXPLANATION

CardBus is the trade name for an advanced PC Card specification. The technology is used primarily in notebook and portable computers and fits in a slot like a conventional PC card. ISA, AGP, and PCI are all card bus types.
SOX is a common abbreviation for the Sarbanes-Oxley Act, a US Federal law governing publicly traded companies.

 

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Which function key is used to check for spelling in MS Office?

Which function key is used to check for spelling in MS Office?

• Alt + F11
• F5
• Alt + F4
• F7

EXPLANATION

Function key assignments common to all Microsoft Office applications are: F7 to check spelling.



 In Microsoft PowerPoint, F5 starts the slide show.



 Alt+F11 calls the Visual Basic Editor



 Alt+F4 is used to quit the application.

 

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Which of these is not a high level Linux package manager?

Which of these is not a high level Linux package manager?

• aptitude
• yum
• zypper
• linupdate

EXPLANATION

linupdate is the false one here. The others are all legitimate Linux package managers. Even though these are package managers, they use lower level tools to actually install the packages, such as rpm or dpkg.
Overview: http://www.tecmint.com/linux-package-management/
RPM & DPKG reference: http://packman.linux.is/

 

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Which provides a method for validating source of a message through cryptographic authentication ?

Which provides a method for validating source of a message through cryptographic authentication ?

• DNS
• SPF
• DNSSEC
• DKIM

EXPLANATION

DKIM provides a method for validating a domain name identity that is associated with a message through cryptographic authentication.

SOURCE

http://www.dkim.org/

 

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Which of these commands could you use to view the status of the system's ports?

Which of these commands could you use to view the status of the system's ports?

• netstat -o
• netstat -a
• netstat -y
• netstat -p 

 

EXPLANATION

You can use the netstat -a command to list the ports used by the system and whether they are open and listening.

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