Which Command prompt command will show a Windows system's last boot time on a networked computer?

Which Command prompt command will show a Windows system's last boot time on a networked computer?

• SystemInfo /s *computer_name* | find "Boot Time:"
• SystemInfo /s *computer_name* | "ShowUpTime:"
• SystemInfo /s *computer_name* | "View Boot Time"
• SystemInfo /s *computer_name* | find "UpTime:"

EXPLANATION

 Determining your computer's last reboot can help you keep track of its uptime. Microsoft offers separate tools for Windows XP Home and Windows XP Professional that let you see how long ago the last reboot occurred. Although Windows XP Professional users can use the native System Info command to check system uptime, operating system information and network status, Windows XP Home users may use Microsoft's Uptime.exe tool to view their system uptime.

C:\Users\Randy> SystemInfo   | find "UpTime:"

C:\Users\Randy> SystemInfo   | find "Boot"
System Boot Time:          23-12-2019, 11.51.16 PM
Boot Device:               \Device\HarddiskVolume1

C:\Users\Randy>

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If you have four 1TB hard drives in a single array, which one of the following standard configurations gives you the most redundancy?

If you have four 1TB hard drives in a single array, which one of the following standard configurations gives you the most redundancy?

• RAID 5
• JBOD
• RAID 6
• RAID 0

EXPLANATION

EXPLANATION

Only Raid 5 and Raid 6 give you redundancy.  Regardless of size and performance, Raid 6 is fault tolerant to 2 disks failing, while Raid 5 is only fault tolerant to 1 disk failure.
JBOD "Just a Bunch Of Disks" (Standard not Hybrid) doesn't offer redundancy.
RAID 0 Offers performance gains by striping, but doesn't offer redundancy.
RAID 5 Offers a larger total drive size but only 1 drive of redundancy.
RAID 6 Requires at least 4 drives and has an extra drive of redundancy.

SOURCE

https://en.wikipedia.org/wiki/RAID

 

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What is measured when calculating velocity during an agile sprint?

What is measured when calculating velocity during an agile sprint?

• Number of tasks
• Person-hours
• Any of the answers
• Story points 

EXPLANATION

Calculation of Velocity

The first version is actual velocity and involves dividing the total number of story points completed by the number of sprints. For example, if the development team has completed a total of 70 points over two sprints, the team's actual velocity would be 35 points per sprint.
Velocity is a measure of the amount of work a Team can tackle during a single Sprint and is the key metric in Scrum. Velocity is calculated at the end of the Sprint by totaling the Points for all fully completed User Stories.

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Which record type would a DNS client be registered with on a DNS server?

Which record type would a DNS client be registered with on a DNS server?

• 'NS' record
• 'A' record
• 'MX' record
• 'CNAME' record 

EXPLANATION

DNS servers create a DNS record to provide important information about a domain or hostname, particularly its current IP address. The most common DNS record types are: Address Mapping record (A Record)—also known as a DNS host record, stores a hostname and its corresponding IPv4 address.

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What MS-DOS command changes the cmd window default font and background color?

What MS-DOS command changes the cmd window default font and background color?

• backg
• color
• font
• cbpref 

EXPLANATION

The color command allows users running MS-DOS or the Windows command line to change the default color of the background or text.

Color syntax

Sets the default console foreground and background colors.

COLOR [attr]

attr	Specifies color attribute of console output.

Color attributes are specified by TWO hex digits -- the first corresponds to the background; the second the foreground. Each digit can be any of the below values.

0 = Black	8 = Gray
1 = Blue	9 = Light Blue
2 = Green	A = Light Green
3 = Aqua	B = Light Aqua
4 = Red	C = Light Red
5 = Purple	D = Light Purple
6 = Yellow	E = Light Yellow
7 = White	F = Bright White

If no argument is given, this command restores the color to what it was when cmd.exe started. This value either comes from the current console window, the /T command line switch or from the "DefaultColor" registry value.

The COLOR command sets ERRORLEVEL to 1 if an attempt is made to execute the COLOR command with a foreground and background color that are the same.

Color examples

Color 0A

 

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Which one was the first web browser invented in 1990

Which one was the first web browser invented in 1990

• Internet Explorer
• Nexus
• Mozilla
• Mosaic 

EXPLANATION

1990 – The WorldWideWeb (not to be confused with the World Wide Web) was the first browser ever created by W3C Director Tim Berners-Lee, then renamed Nexus to differentiate from the actual World Wide Web

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What is the Standard Bandwidth of Cat8 ethernet network cable?

What is the Standard Bandwidth of Cat8 ethernet network cable?

• 600MHz
• 250MHz
• 2000MHz
• 500MHz 

EXPLANATION

Cat8 cable, or category 8 cable, is an Ethernet cable which differs greatly from the previous cables in that it supports a frequency of up to 2 GHz (2000 MHz), and is limited to a 30-meter 2-connector channel. While Cat8 cable requires shielded cabling as well. Most importantly, Cat8 Ethernet patch cables can support a speed of 25 Gbps or even 40 Gbps. The physical appearance of Cat8 cable is similar to lower category cables and it can be terminated in RJ45 connections or non-RJ45 connections. Cat8 cable is also backward compatible with its previous versions. Therefore, there is no problem to use it with standard Cat7 connector.

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