Answer:
B. TCP ensures messages can be reliably transmitted across the Internet.
D. TCP must account for the fact that packets may not arrive at a destination computer in the intended order
Explanation:
TCP or transmission control protocol is a connection oriented protocol that divides a packet to segments, and reliably sends them to their destination.
TCP is a layer 4 (transport layer) protocol in the OSI network model. Its packets data unit, PDU, is called segment.
For TCP connection to be successful, a three way handshake must be established between the client and server.
When a connection is established, tcp sends the packets in sequenced segments to the destination through various routes, the source receives acknowledgement for segments received by the destination and the source resend segment that were lost. In the destination, the TCP arranges the segments to its proper sequence.
Answer:
This is a Phishing email
Explanation:
Pierre has received a phishing email from a certain scammer. These kinds of emails are an attempt from the scammer to fool the receivers like in this case Pierre and get the personal and financial information that they can use to steal the money from their account. It's hence, a fraudulent attempt to steal the money from the account of a certain person like here it is Pierre.
A vertical group of cells are called (C) column
<h2>

</h2>
<u>The computer is the combination of hardware and software. Hardware is the physical component of a computer like motherboard, memory devices, monitor, keyboard etc., while software is the set of programs or instructions. Both hardware and software together make the computer system function.</u>
<h2><u>E</u><u>x</u><u>a</u><u>m</u><u>p</u><u>l</u><u>e</u><u>s</u><u> </u><u>:</u><u>-</u><u> </u></h2>
<h3><u>Mainframe Computer</u></h3>
- Mainframe Computer. 20 in Kickin Technology Series: MainFrame Computers. MORE POWEeeer! Movie 1. ...
- Desktop Computer. Movie: 2. Desktop Computers. ...
- Laptop or Notebook Computer. Movie: 3. Laptop Computers. ...
- Palmtop Computer or Personal Digital Assistant (PDA)