Answer:
Switch
Explanation:
The network switch is an networking hardware also known as a network bridging device used to connect devices on the network together and receives and forward data from source to destination through packet switching.
In order to eliminate or reduce collision within the network, present day wired networks make use of network switches that connects each device to its own port on the switch, making the switch the domain of collision for half duplex links or whereby the link is a full duplex links the collision possibility is completely eliminated.
Answer: Stealth scanning technique
Explanation:
Stealth Scanning technique includes the following steps:
1. The client upon sending a single SYN packet to is responded by SYN/ACK packet if the port is open.
2. The port is assumed to be in closed state if the RST packe t is sent from the server.
3. This RST packet is sent by the client to close the initiation process so that a connection cannot be established.
The oracle11g server stores information about objects in the database, including information about constraints in the tables. <span>An </span>Oracle database is a set of files that store Oracle data in persistent disk storage.<span>A database </span>instance<span> is a set of memory structures that manage database files</span>.
Answer:D) Hardware failure
Explanation: Fatal error are those which stops the function execution of the operating system during the run-time in the Microsoft Windows . These errors. These errors are seen the Microsoft windows due to the major reason of the hardware failure, accessing of the invalid code,operating system files might get corrupted etc. Therefore, the correct option is option(D).
