What does the O in DORA stand for?

What does the O in DORA stand for?

• Operating
• Oracle
• Octet
• Offer

 EXPLANATION

DORA stands for discover , offer , request and acknowledgement

when we install a dhcp server into our network then dhcp server works on the basis of dora process

first dhcp server sends a hello message in to the network to discover the clients pc and when any client pc found in the network then , dhcp server offers the IP to client pc. When client pc select  any IP from dhcp server then client pc request for selected IP to dhcp server then dhcp server provide that IP to client pc and both send ackonledgement to each other.

This process is called DORA process on the basis of this process DHCP server works to provide IP's dynamically to client pc's in network 

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Android Debug Bridge (adb) is a command-line tool that lets you communicate with a device. What are its components?

Android Debug Bridge (adb) is a command-line tool that lets you communicate with a device. What are its components?

• A client, a server, and the cloud
• A client, a server, and a daemon
• A server
• A client and a server 

EXPLANATION

Android Debug Bridge (adb) is a versatile command-line tool that lets you communicate with a device. The adb command facilitates a variety of device actions, such as installing and debugging apps, and it provides access to a Unix shell that you can use to run a variety of commands on a device. It is a client-server program that includes three components:

• A client, which sends commands. The client runs on your development machine. You can invoke a client from a command-line terminal by issuing an adb command.
• A daemon (adbd), which runs commands on a device. The daemon runs as a background process on each device.
• A server, which manages communication between the client and the daemon. The server runs as a background process on your development machine.

SOURCE

https://developer.android.com/studio/command-line/adb.html

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What does "IT" stand for?

What does "IT" stand for?

• Information Technology
• Internet Technology
• Inbox Troubleshooter
• Intercommunication Technologies 

EXPLANATION

Information technology is the use of computers to store, retrieve, transmit, and manipulate data, or information, often in the context of a business or other enterprise. IT is considered to be a subset of information and communications technology.

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What is an example of a Class B private network address?

What is an example of a Class B private network address?

• 172.32.14.8
• 192.168.17.8
• 172.17.0.5
• 127.0.0.1 

EXPLANATION

Private Range
16 Networks dedicated for internal usage.

172.16.0.0 with Broadcast 172.16.255.255

Up to last network…

172.31.0.0 with Broadcast 172.31.255.255

Example of Class B Private Usable IP Address Range

172.16.0.1 up to 172.16.255.254

Up to the last Network’s IP Address range…

172.31.0.1 up to 172.31.255.254

Note: Some people might believe that any IP Address that start with 172 is a Private IP address, that’s Not True. The 172.16.x.x up to 172.31.x.x are ONLY the private Range in Classful B Network.

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Which feature of Exchange is required to allow Outlook to fully synchronize content (mail folders, contacts, calendars, and tasks)?

Which feature of Exchange is required to allow Outlook to fully synchronize content (mail folders, contacts, calendars, and tasks)?

• MAPI
• IMAP
• ActiveSync
• POP3 

EXPLANATION

Exchange ActiveSync (commonly known as EAS) is a proprietary protocol designed for the synchronization of email, contacts, calendar, tasks, and notes from a messaging server to a smartphone or other mobile devices. The protocol also provides mobile device management and policy controls. The protocol is based on XML. The mobile device communicates over HTTP or HTTPS. 

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