Describe how packet-switching can increase the reliability of a network.
What will be an ideal response?
In a packet-switching network, messages to be sent over the network are first broken into small pieces known as packets, and these packets are sent independently to their final destination. If a message is broken into packets and the packets are transmitted independently, it is probable that at least part of the message will arrive at its destination, even if some failures occur within the network. If the recipient receives only part of the message, TCP software on his or her computer can acknowledge the partial message’s receipt and request retransmission from the sender.
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Describe the characteristics and purpose of fact and dimension tables and explain how you recognise that this data mart is based on a star schema design. Illustrate your answer using the data mart tables in Figure 32.3
What will be an ideal response?
Characteristics of a file such as file name, creation data, and modified date are known as which of the following?
A. index B. category C. service D. metadata
When merging a document, the ________ document contains the text or formatting that remains constant
A) data source B) main C) template file D) source
Case C-2Charles is developing an illustration that features a landscape scene. Charles does not like the results of using the Unite command so he goes back a step to undo the command and then he uses the ____ commands to change the stacking order of each blade of grass for a more natural look.
A. Pathfinder B. Arrange C. Path D. Offset Path