Answer:
Answer is A. One.
Refer below.
Explanation:
A data flow cannot go directly back to the same process it leaves. There must be at least one other process that handle(s) the data flow, produce(s) some other data flow, and return(s) the original data flow to the beginning process.
Answer:
Explanation:
In data communications, a protocol is <em>connectionless </em>if it describes communication between two devices in a network without first establishing or verifying establishment of some link (connection) between the two devices. In a connectionless protocol, data are exchanged between processes or devices without a prior check of whether the processes are ready to transmit data or not. In this type of protocol, there's no verification put in place to remember if these processes were or are in communication. Connectionless protocols are also called stateless protocols. Because connectionless protocol cannot be relied upon due to its lack of delivery-assurance policy, it is sometimes referred to as <em>unreliable protocol</em>. In other words, delivery of data packets is not guaranteed. An example of a connectionless protocol is the UDP (User Datagram Protocol).
However, if the protocol defines some checks to ascertain that there is first a connection between two communicating processes before beginning transmission, then, the protocol is <em>connection-oriented. </em>An example of this is the TCP (Transmission Control Protocol). Connection-oriented protocols are reliable since they ensure connection be made between processes before transmitting data packets.
A typical application of a connectionless/unreliable protocol is in the streaming of real time videos or voice communication where packets of data could be dropped and not resent.
An example of the connection-oriented/reliable protocol is analogous to making a telephone call where data packets (voice messages) are not sent until the receiver on the other end makes a connection.
Answer:
"Technical support" is the correct answer for the abobve question.
Explanation:
- Technical support is a service that is used to repair the technical system. It is not used to provide training and guidance that how the system is maintained. This type of service is taken by the third party which comes in the categories of the information technology organization.
- The above question asked about the term which is used to give the repair service to the hardware and the software of the information system and it is taken by the third party. This service is known as "Technical support" which is defined above.
Answer: Option (4) is correct.
Explanation:
Object-oriented analysis is referred to as an approach in technical world which is popular for analyzing and also designing an app, system, or organization by applying OOPs or object-oriented programming, also making use of visual modeling in order to cater better stakeholder communication and commodity quality.
Answer:
O Tab
Explanation:
In order to add a new record the key that should be used to move to the next field is tab key
while the other keys are used for the other purpose
But for adding a new field, new record, a tab key should be used
Therefore the last option is correct
