IT Questions and Answers :)

Friday, September 28, 2018

At a Windows command prompt that is set to the root of the drive, which of the following commands will search the entire drive for all occurrences of the "Testing.docx" file?

At a Windows command prompt that is set to the root of the drive, which of the following commands will search the entire drive for all occurrences of the "Testing.docx" file?

  • DIR /ALL Testing.docx
  • DIR Testing.docx
  • DIR /S Testing.docx
  • DIR /R Testing.docx 

 
At a Windows command prompt that is set to the root of the drive, which of the following commands will search the entire drive for all occurrences of the "Testing.docx" file?

EXPLANATION

The directory command allows many flags, including the recursive search flag "/S".
This flag searches the current folder and all sub folders.
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Thursday, September 27, 2018

What IEEE standard was Wired Equivalent Privacy first introduced?

What IEEE standard was Wired Equivalent Privacy first introduced?

  • 802.1x
  • 801.1a
  • 802
  • 802.11 


EXPLANATION

IEEE introduced WEP in the 802.11 standard but updated it in the 802.1x.

SOURCE

https://www.giac.org/paper/gsec/4214/wireless-security-ieee-80211-standards/106760
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Wednesday, September 26, 2018

An initialization vector should be which of the following?

An initialization vector should be which of the following?

  • Repeatable and random
  • Unique and predictable
  • Unique and unpredicatable
  • Repeatable and unique 

 
An initialization vector should be which of the following?

EXPLANATION

An initialization vector (IV) should be unique and unpredictable. To prevent an attack,
an IV must not be repeated with a given key and should appear random.

SOURCE

https://en.wikipedia.org/wiki/Initialization_vector
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Tuesday, September 25, 2018

Which type of RAID configuration requires minimum six drives?

Which type of RAID configuration requires minimum six drives?

  • RAID 50 (RAID 5 + 0)
  • RAID 100 (RAID 10+0)
  • RAID 6
  • RAID 60 (RAID 6 + 0) 

 
Which type of RAID configuration requires minimum six drives?

EXPLANATION

RAID 50, also called RAID 5+0, combines the straight block-level striping of RAID 0 with the distributed parity of RAID 5.[3] As a RAID 0 array striped across RAID 5 elements, minimal RAID 50 configuration requires six drives.

SOURCE

https://en.wikipedia.org/wiki/Nested_RAID_levels
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In sql, which of the following is applicable to the CHAR datatype?

In sql, which of the following is applicable to the CHAR datatype?

  • CHAR stores alphanumeric characters of fixed size
  • Stores alphanumeric characters of variable length
  • to create scripts containing infinite characters
  • Type as many characters as you want 

 
In sql, which of the following is applicable to the CHAR datatype?

EXPLANATION

The only difference between CHAR and VARCHAR2 is that CHAR stores fixed-length alphanumeric characters, between 1 and 2000 bytes or characters. If you are stored in the JUNIOR surname in a CHAR (50) column, a column will contain a JUNIOR string + 44 whitespaces that are automatically added to the total column volume.

SOURCE

http://www.fabioprado.net/2011/08/qual-tipo-de-dado-devo-usar-char.html

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Which of the following is NOT a computer programming language?

Which of the following is NOT a computer programming language?

  • Lisp
  • Occam
  • SNOBOL
  • Modal

EXPLANATION

MODAL isn't a programming language but is used in computer applications, especially within websites. It is a graphical window control element, subordinate to an application's main window.
SNOBOL (StriNg Oriented and symBOlic Language), is a text-string-oriented language developed by AT&T Bell Labs in the 1960s.
LISP, developed in the 1950s, is one of the oldest high-level programming languages and is only pre-dated by the likes of FORTRAN.
OCCAM was one of the earliest Concurrent programming languages, developed by INMOS as the native programming language for their Transputer Microprocessors.

SOURCE

https://en.wikipedia.org/wiki/List_of_programming_languages
 
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Friday, September 21, 2018

Access management is most affected by which of these aspects of cloud computing?

Access management is most affected by which of these aspects of cloud computing?

  • Internet Service Provider
  • Virtualization
  • Federated Identity
  • Cloud backup 

 
Access management is most affected by which of these aspects of cloud computing?

EXPLANATION

Federated Identity allows you to use a central identity store both inside and outside of your organization. Cloud backup and Internet Service Provider have to do with IT service continuity management, not access management. Virtualization affects all IT processes, but not as much as identity federation.
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