Answer:
Short for Post Office Protocol, POP or POP mail is one of the most commonly used protocols used to receive e-mail on many e-mail clients. There are two different versions of POP: POP2 and POP3. POP2was an early standard of POP that was only capable of receiving e-mail and required SMTP to send e-mail. POP3 is the latest standard and can send and receive e-mail only using POP, but can also be used to receive e-mail and then use SMTP to send e-mail.
First, rpm is RedHat Package Manager. Compilation is done with gcc, the GNU C Compiler.
To add that kernel to grub2's menu, as root you'd need to run:
grub2-mkconfig > /boot/grub2/grub.cfg #redirection is favored by Red Hat
Check out the man page @ man grub2-mkconfig
Answer:(1) To manage the computer's resources, which includes central processing unit, memory, disk drives, and printers, (2) To establish a user interface
(3)To execute and provide services for applications software.
The old mainframe computers have
(1) low memory sizes
(2) slower connectivity speed
(3) Larger sizer
(4) low sophistication.
Explanation: Operating system is a system software that manages the computer resources,helps to establish user interface and it helps to provide services for application softwares.
Operating system software includes WINDOWS X,WINDOWS 7,WINDOWS 8,LINUX,etc.
Mainframe computers are computers used by large multinational companies for processing bulk data. Old mainframe computers were produced by IBM(INTERNATIONAL BUSINESS MACHINE) in the year 1952 they are classed two scientific and commercial mainframe computers with different information although they had some incompatibilities. Old mainframe computers are large in size with low processing speed, sophistication and storage compared to present day system.
Answer:
Explanation:
I am attaching the table as an image with updated table containing required information for the following WAN technologies.
T1/DS1 => Digital Signal 1 (T-Carrier 1),
T3/DS3 => Digital Signal 3 (T-Carrier 3),
OC3 (SONET) => Optical Carrier 3 (Synchronous Optical Networking),
Frame Relay,
ATM => Asynchronous Transfer Mode,
MPLS => Multi-protocol Label Switching,
EPL => Ethernet Private Line.
Although you have mentioned most of the information yourself, there were some wrong data in it. So I have updated them with correct information in the attached table.
I don’t understand please speak English