Unix time is the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC) on what date?

Unix time is the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC) on what date?

• Saturday, January 1, 2000
• Sunday, December 28, 1969
• Thursday, January 1, 1970
• Monday, January 1, 1900 

 

EXPLANATION

Unix time counts the number of seconds that have elapsed since 00:00:00 UTC on January 1, 1970. It is used in Unix-like operating systems and file formats. Because it doesn't deal with leap seconds, it is not a true representation of UTC. Check out Unix time for yourself by typing "date +%s" on the command line.

Fun fact: December 28, 1969, is Linus Torvalds' birthday, which makes him older than Unix.

Read More

Which are Fax over IP Protocols?

Which are Fax over IP Protocols?

• k.30 and k.38
• M.16 and M.204
• H.323 and H.404
• t.30 and t.38 

 

EXPLANATION

t.30 and t.38 are fax over ip protocols

SOURCE

https://www.3cx.com/pbx/foip/ 

Read More

What Azure BGP Private ASN are reserved?

What Azure BGP Private ASN are reserved?

• 65515, 65517, 65518, 65519, 65520
• 54000, 54100, 54200, 54300, 54400
• 60001, 60002, 60003, 60004, 60005
• 67715, 67717, 67718, 67719, 67720 

 

EXPLANATION

Private and Public Azure ASN's can be foudn here:
https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-bgp-overview

SOURCE

https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-bgp-overview

Read More

Which of the following standards relates to a video compression standard?

Which of the following standards relates to a video compression standard?

• G.711
• G.729
• H.264
• H.323 

H.264 is an industry standard for video compression, the process of converting digital video into a format that takes up less capacity when it is stored or transmitted. Video compression (or video coding) is an essential technology for applications such as digital television, DVD-Video, mobile TV, video conferencing and internet video streaming.

SOURCE

https://www.vcodex.com/h264-resources/

Read More

In VMware ESXi, when expanding a virtual disk, which of the follwing should not exist?

In VMware ESXi, when expanding a virtual disk, which of the follwing should not exist?

• A new virtual machine
• Backup
• Snapshots
• Available space 

 

EXPLANATION

The Prerequisites for expanding a virtual disk are:

■ Power off the virtual machine.

■ Verify that the virtual disk is not mapped or mounted. You cannot expand a virtual disk while it is mapped or mounted.

■ Verify that the virtual machine has no snapshots.

■ Verify that the virtual machine is not a linked clone or the parent of a linked clone.

SOURCE

https://pubs.vmware.com/workstation-9/index.jsp?topic=%2Fcom.vmware.ws.using.doc%2FGUID-73BEB4E6-A1B9-41F4-BA37-364C4B067AA8.html

Read More