IT Questions and Answers :)

Tuesday, March 20, 2018

Which of these is NOT a utility that lets you create a bootable live USB drive for Linux?

Which of these is NOT a utility that lets you create a bootable live USB drive for Linux?

  • LiveUSB Install
  • UNetbootin
  • GotLive
  • LiLi 
Which of these is NOT a utility that lets you create a bootable live USB drive for Linux?

EXPLANATION

LinuxLive USB Creator (also known as Lili) is a free and open-source software for Windows that can be used to install various Linux compilations, versions and distributions to a USB Flash Drive. The end result is a Bootable Live USB (in some cases with Persistence as well). UNetbootin allows you to create bootable Live USB drives for Ubuntu and other Linux distributions without burning a CD.

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Cloud solutions that can tolerate failures yet still provide service are referred to as what?

Cloud solutions that can tolerate failures yet still provide service are referred to as what?

  • Highly available
  • Highly portable
  • PaaS
  • IaaS 
Cloud solutions that can tolerate failures yet still provide service are referred to as what?

EXPLANATION

High availability ensures that cloud solutions are always accessible. This means eliminating single points of failure, such as storing data on a single hard disk or single network connections.

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What MySQL feature allows for queries to be run periodically in the background, independent of a front-end program?

What MySQL feature allows for queries to be run periodically in the background, independent of a front-end program?

  • MySQL Automatic Events
  • MySQL Task Manager
  • MySQL Event Scheduler
  • MySQL Scheduled Tasks 

 
What MySQL feature allows for queries to be run periodically in the background, independent of a front-end program?

EXPLANATION

The MySQL Event Scheduler allows for queries to be run in the background at scheduled times, either as a one-off or recurring event.

SOURCE

https://dev.mysql.com/doc/refman/5.7/en/events-overview.html
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On a Cisco Catalyst switch, what are the Layer 3 interfaces called that are used to accomplish inter-VLAN routing?

On a Cisco Catalyst switch, what are the Layer 3 interfaces called that are used to accomplish inter-VLAN routing?

  • SVI
  • SIP
  • Trunk interfaces
  • RIP 
On a Cisco Catalyst switch, what are the Layer 3 interfaces called that are used to accomplish inter-VLAN routing?

  EXPLANATION



VLANs divide broadcast domains in a LAN environment. Whenever hosts in one VLAN need to communicate with hosts in another VLAN, the traffic must be routed between them. This is known as inter-VLAN routing. On Catalyst switches it is accomplished by creating Layer 3 interfaces known as Switch Virtual Interfaces (SVI).
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By default, which of the following is NOT a legitimate Linux run level?

By default, which of the following is NOT a legitimate Linux run level?

  • 4: Normal mode
  • 6: Reboot system
  • 1: Single-user mode
  • 3: Multi-user mode with networking 
By default, which of the following is NOT a legitimate Linux run level?

EXPLANATION

A Linux run level defines the state of the system after boot. Conventionally, seven run levels exist, numbered from zero to six. They include:
0: Halt system
1: Single-user mode
2: Basic multi-user mode without NFS
3: Multi-user mode with networking
4: Unused
5: Multi-user mode with GUI

6: Reboot system

SOURCE


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What is not true about HSRP?

What is not true about HSRP?

  • Preempt is set by default
  • It is described in RFC 2281
  • Can track an interface for failover
  • Cisco proprietary protocol 
What is not true about HSRP?

 EXPLANATION

Hot Standby Router Protocol (HSRP) is a Cisco proprietary routing protocol that allows host computers on the Internet to use multiple routers that act as a single virtual router, maintaining connectivity even if the first hop router fails, because other routers are on "hot standby" - ready to go. HSRP's preempt has to be manually set with the "standby vlan-number preempt" command in the Vlan interface configuration mode.

SOURCE

http://www.cisco.com/c/en/us/support/docs/ip/hot-standby-router-protocol-hsrp/9234-hsrpguidetoc.html
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Which of the following Powershell commands would give User2 access to User1's calendar? User2 does not currently have access to anything of User1's

Which of the following Powershell commands would give User2 access to User1's calendar? User2 does not currently have access to anything of User1's

  • Add-MailboxFolderPermission -Identity User1@contoso.com:\Calendar -User User2 -AccessRights Owner
  • Set-MailboxFolderPermission -Identity User1@contoso.com:\Calendar -User User2 -AccessRights Owner
  • Add-MailboxPermission -Identity User1@contoso.com:\Calendar -User User2 -AccessRights Owner
  • Set-MailboxPermission -Identity User1@contoso.com:\Calendar -User User2 -AccessRights Owner 
Which of the following Powershell commands would give User2 access to User1's calendar? User2 does not currently have access to anything of User1's

EXPLANATION


There are two things to notice.  First is that you're trying to give new permissions to User2 and not change current permissions of User2 within User1's mailbox.  So we'll want to use Add instead of Set.  Set is used to change permissions if a user already has some sort of permissions within the mailbox.

The second thing is that the calendar is a folder within the mailbox.  We don't want User2 to be able to read User1's emails, so we'll do Add-MailboxFolderPermission instead of Add-MailboxPermission.

SOURCE

https://technet.microsoft.com/en-us/library/dd298062(v=exchg.160).aspx
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