Answer:
UDP Port 69
<em>Trivial file transfer protocol (TFTP) operates over UDP port 69.</em>
Explanation:
UDP port 69 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 69 makes possible the transmission of a datagram message from one computer to an application running in another computer. UDP is used with <em>IP (the Internet Protocol)</em> and UDP Port 69 is <em>connectionless </em>which means it does not give reliable communication; it’s up to the application that received the message on Port 69 to process any errors and verify correct delivery.
Answer:
Physical and data link layer.
Explanation:
The ethernet cable is used at the physical layer. The physical layer consists of hardware components. This layer is responsible for transmission of data bits between two nodes via a physical wire. The data link layer provides the means in which data packets are transmitted from one node to another.
Suppose two computers (A & B) are directly connected through Ethernet cable. A is sending data to B, the packets would be sent from computer A to computer B if computer B is free if not it would wait until computer B is not transmitting before it can start sending data packets to computer B.
Answer:
Option (C) is the correct answer of this question.
Explanation:
Smart card is the security administrator wishes to implement two-factor authentication to improve security.Normally this data is affiliated with either meaning, information, or both, and will be stored and transmitted within the chip of the card.A smart card, usually a Chip Card type.
- It is a flexible card that holds an integral computer chip that preserves and sends a signal data, either database or semiconductor form.
- Used for controlling access to a resource.
- Data authentication, encryption, cloud storage, and software processing can be established by smart cards.
Other options are incorrect.
Computer checkup/maintenance. You forgot to mention windows updates, it is critical to perform that action as well cause of the recent ransomeware malware that is going around lately and Microsoft and other OS vendors yes even Apple have released patches to prevent it spreading even further.
