A DHCP assigned IP address has a lease duration of 6 days. After how many days does the client start to try to renew the address if it is not rebooted?

A DHCP assigned IP address has a lease duration of 6 days. After how many days does the client start to try to renew the address if it is not rebooted?

• 4 days
• 3 days
• 5 days
• 6 days        

EXPLANATION

After half the lease time is over, the client will start to try to renew and extend the current lease with the DHCP server he got the address from. If he is unsuccessful, he will try again when 87.5% of the lease time is up, trying to find any server that can renew and extend the lease. If no server is found, the client releases the address after the lease time is up and the administrator is in trouble...

More info here.       

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Which of the following is the default port used for POP3 SSL Traffic?

 Which of the following is the default port used for POP3 SSL Traffic?

• 995
• 25
• 587
• 110

EXPLANATION

POP uses port 110, but SSL/TLS encrypted POP uses port 995.

SOURCE

https://www.fastmail.com/help/technical/ssltlsstarttls.html               

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What is it called when RAID appears to be hardware-based, but is actually software-based?

What is it called when RAID appears to be hardware-based, but is actually software-based?

• FakeRAID
• HS-RAID
• FalseRAID
• Triple Parity RAID          

EXPLANATION

FakeRAID is the industry term for software RAID that appears to be hardware RAID. This type of RAID is common in desktops.

What is Fake RAID?

So-called Fake RAID is a name commonly applied to motherboard / BIOS RAID features that provide the bare minimum for RAID functionality as it is understood. Low-end RAID cards get lumped in to this category because they may not offer the same DRAM cache and power loss protection features found in their more expensive counterparts. Why do low end RAID cards exist? They are mostly used to boot multiple operating systems from one array of hard drives.

SOURCE

https://skrypuch.com/raid/

     

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In the early days of the Internet and Microsoft Windows 3.11, what were two components that needed to be installed before Windows could access the Internet using TCP/IP?

In the early days of the Internet and Microsoft Windows 3.11, what were two components that needed to be installed before Windows could access the Internet using TCP/IP?

• 4Gb of RAM and a solid state disk drive.
• Win32s and Trumpet WinSock
• 16-bit TCP/IP stack and Internet Explorer 4.
• A lot of coffee and a new PC. 

EXPLANATION

If you are installing the Windows 3.x 16-bit version of Netscape Navigator, it requires the Microsoft Win32s software be installed first.
If you received a copy of Win32s on a N.E.O.Net Sign-up Kit disk, then insert Win32s Disk 1 - Setup into your system's floppy drive, run the Setup application as outlined on the disk label, and follow the instructions on-screen.

Windows 3.x also requires that you have a dialer/winsock application such as Trumpet. You may wish to install Trumpet prior to Netscape.

With Windows 3.1/3.11 being a 16 bit operating system, the Win32s allowed certain 32-bit applications to run on the host system.

Trumpet Winsock would act as the modem/network "dialer" to make the connection to your ISP.

Internet Explorer 4 was not released until 1997 for use with Windows 95 or Windows NT 4.0, both of these OS's were 32 bit and did not require Win32s or Trumpet Winsock.

SOURCE

http://www.neonet.bc.ca/connect/netnav2/netnav2.htm              

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In a Windows Active Directory environment, how do you apply network-wide settings or policy changes?

 In a Windows Active Directory environment, how do you apply network-wide settings or policy changes?

• GPO
• LAN
• CN
• OU

EXPLANATION

GPOs (Group Policy Objects) are a collection of settings that can be applied to a group of users or computers or to the entire Active Directory environment.               

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