IT Questions and Answers :)

Friday, February 7, 2020

What kind of information about your e-mail environment is not stored in DNS?

What kind of information about your e-mail environment is not stored in DNS?

  • Certificate expiration date
  • SPF record
  • DKIM selector
  • MX 

 
What kind of information about your e-mail environment is not stored in DNS?

EXPLANATION

Autodiscover records, MX records and DKIM selectors are provided in de public DNS zone for each domain. The expiration date for a certificate is displayed on the certificate itself.

SOURCE

https://nl.wikipedia.org/wiki/Domain_Name_System
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From a hardware perspective what is the default paging file size requirements for Exchange 2019

From a hardware perspective what is the default paging file size requirements for Exchange 2019

  • 75% of installed memory
  • 25% of installed memory
  • 10% of installed memory
  • 50% of installed memory 

From a hardware perspective what is the default paging file size requirements for Exchange 2019

EXPLANATION

When installing Exchange 2019 it is required to set the paging file size to 25% of the installed memory.

SOURCE

https://docs.microsoft.com/en-us/exchange/plan-and-deploy/system-requirements?view=exchserver-2019
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Thursday, February 6, 2020

Which of these is NOT a type of intrusion detection system (IDS)?

Which of these is NOT a type of intrusion detection system (IDS)?

  • Behavior-based
  • Host-based
  • Tunnel-based
  • Network-based 

Which of these is NOT a type of intrusion detection system (IDS)?

EXPLANATION

Behavior-based IDS looks for variations in behavior, like unusually high traffic, policy violations,
things like that. Deviations in behavior help it recognize potential threats. A network-based IDS examines all network traffic going to and from network systems. A host-based IDS refers to applications like spyware or virus applications that are installed on individual network systems and monitor for things like system file modifications or registry changes.
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Tuesday, February 4, 2020

How many default receive connectors are there in Exchange 2013?

How many default receive connectors are there in Exchange 2013?
  • 6
  • 4
  • 3
  • 5
How many default receive connectors are there in Exchange 2013?

EXPLANATION


Default Receive connectors created during setup
Certain Receive connectors are created by default when you install the Mailbox server role.

Default Receive connectors created on a Mailbox server running the Transport service
When you install a Mailbox server running the Transport service, two Receive connectors are created. No additional Receive connectors are needed for typical operation, and in most cases the default Receive connectors don't require a configuration change. These connectors are the following:
Default <server name>   Accepts connections from Mailbox servers running the Transport service and from Edge servers.
Client Proxy <server name>   Accepts connections from front-end servers. Typically, messages are sent to a front-end server over SMTP.
Each connector is assigned a TransportRole value. You can use it to determine the role the connector is running in. This can be helpful in cases where you are running multiple roles on a single server. In the case of each Receive connector previously mentioned, their TransportRole value is HubTransport.
To view the default Receive connectors and their parameter values, you can use the Get-ReceiveConnector cmdlet.
Default Receive connectors created on a Front End Transport server
During installation, three Receive connectors are created on the Front End transport, or Client Access server. The default Front End Receive connector is configured to accept SMTP communications from all IP address ranges. Additionally, there is a Receive connector that can act as an outbound proxy for messages sent to the front-end server from Mailbox servers. Finally, there is a secure Receive connector configured to accept messages encrypted with Transport Layer Security (TLS). These connectors are the following:
Default FrontEnd <server name>   Accepts connections from SMTP senders over port 25. This is the common messaging entry point into your organization.
Outbound Proxy Frontend <server name>   Accepts messages from a Send Connector on a back-end server, with front-end proxy enabled.
Client Frontend <server name>   Accepts secure connections, with Transport Layer Security (TLS) applied.
In a typical installation, no additional Receive connectors are required.

SOURCE

https://technet.microsoft.com/en-us/library/aa996395(v=exchg.150).aspx
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What is the output file extension once you have captured a machine using sysprep?

What is the output file extension once you have captured a machine using sysprep?

  • .PKG
  • .MSI
  • .ESD
  • .WIM


 What is the output file extension once you have captured a machine using sysprep?

EXPLANATION

A captured image file is a .WIM.
The .WIM holds a complete copy of your reference computer. The .WIM can be used to deploy a Windows image across a network using WDS.

SOURCE

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