Identify three tasks that are performed by the internetwork layer.
What will be an ideal response?
In short, the internetwork layer performs the following tasks: Defining the datagram, defining the Internet addressing scheme, accepting data from the network access layer and transferring them to the transport layer, routing datagrams to remote hosts, and finally fragmenting datagrams in order to rout them in different networks and also reassembling datagrams.
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Define a class named Doctor whose objects are records for a clinic’s doctors. Derive this class from the class Person given in Listing 8.1. A Doctor record has the doctor’s name—defined in the class Person—a specialty as a string (for example Pediatrician, Obstetrician, General Practitioner, and so on), and an office visit fee (use the type double). Give your class a reasonable complement of constructors and accessor methods, and an equals method as well. Write a driver program to test all your methods.
This project is a simple variation of Practice Program 1. Note that two of the Doctor constructors have the same two parameter types, String and double, but in opposite order, so they are clearly distinct to the compiler.
Which of the following is NOT true about using YouTube videos on Facebook?
A) Facebook makes it easy to upload YouTube videos to your Facebook Home page. B) You can embed any public YouTube video in a Facebook status update. C) Embedded videos can be videos you've uploaded to the YouTube site or other people's videos. D) Since these embedded videos are actually hosted by YouTube, Facebook imposes no length or file size limit on these YouTube videos.
What connection type provides support for large monitors at high resolution for a home-theater PC?
A. VGA B. HDMI C. RCA D. USB 3.0
Which of the following can you not do if you use a query as the record source for a form?
A. Lock your form so that it cannot be edited B. Filter the records C. Combine records from multiple tables D. Limit the number of fields in the table which are displayed