What is a DMS-59 connector used for?

What is a DMS-59 connector used for?

• Connecting two high resolution displays to a computer
• Converting two molex connectors to a single 9-pin connector
• Connecting two male RJ45 connectors together
• Connecting two parallel port devices to a computer 

 

EXPLANATION

DMS-59, or Dual Monitor Solution (59 pins), is a connector found on older video cards. It allows for two high resolution displays to be connected via a single port.
The compact size is useful for allowing two displays on a single half-height video card. Monitors typically connect via a special adapter to split the 59 pin connection to dual DVI or dual VGA connectors.

SOURCE

https://en.wikipedia.org/wiki/DMS-59

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Poor data administration in a database can result in…

Poor data administration in a database can result in…

• Missing data elements
• A poorly configured database
• Familiarity with existing data
• A single definition of the same data entity 

 

EXPLANATION

Poor data quality gives rise to poor decisions. A decision can be no better than the information upon which it's based, and critical decisions based on poor-quality data can have very serious consequences. ... Poor data quality can reflect adversely on your organization, lowering customer confidence.

 SOURCE

https://www.examveda.com/poor-data-administration-can-lead-to-which-of-the-following-24514/

 

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Which of the following is true in a DBMS that uses encryption?

Which of the following is true in a DBMS that uses encryption?

• Special integrity constraint rules apply
• Data is stored as plain text
• Data is stored as cipher text
• Data is stored off site 

EXPLANATION

Database encryption uses an algorithm to transform data stored in a database into "cipher text" 
that is incomprehensible without first being decrypted. You encrypt the data using various algorithms.

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What is the voltage input for a Standard Raspberry Pi 3

What is the voltage input for a Standard Raspberry Pi 3

• 5W
• 5mV
• 5V
• 5mW 

 

EXPLANATION

Raspberry Pi can accept 5v which is the output of any standardised mobile phone charger.

SOURCE

https://www.modmypi.com/blog/how-do-i-power-my-raspberry-pi

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Which RAID set stripes data with parallel access and dedicated parity disk

Which RAID set stripes data with parallel access and dedicated parity disk

• 5
• 0
• 3
• 6 

 

EXPLANATION

Raid 0 =  Striped data with no fault tolerance. Good for applications needing high I/O throughput
Raid 5 = Striped set with independent disk access and distributed parity. Dedicated drive parity writes can become bottlenecks, RAID 5 distributes them to avoid. Good for random, read-intensive I/O applications
Raid 6 =  Striped set with independent disk access and dual distributed parity. Includes second parity in case two disks fail. Write penalty is higher. Rebuild time is higher.
Raid 3 =  Striped set with parallel access and a dedicated parity disk. No partial writes to update one strip in a stripe

SOURCE

http://docs.oracle.com/cd/E19247-01/817-3337-18/appa_raid_basic.html

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