This topic contains a solution. Click here to go to the answer

Author Question: With UM, all of the various messaging systems are rolled into one system, with one access pointthe ... (Read 39 times)

lracut11

  • Hero Member
  • *****
  • Posts: 536
With UM, all of the various messaging systems are rolled into one system, with one access pointthe user's e-mail inbox, which means that the system cannot be hacked into.
 
  Indicate whether the statement is true or false

Question 2

Explain why virtual circuits are less flexible than datagrams.
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mcabuhat

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

FALSE

Answer to Question 2

Virtual circuits are less flexible than datagrams in that if a problem occurs along the route, the packets cannot simply be routed around the problem area. Instead, a new virtual circuit must be established. Recall that with a datagram, if a link is bad or congested, the datagram can simply take a different route. In order to use a single route, virtual circuits also require that packets carry, besides sequence numbers, additional identification information. This identification information includes the address of the virtual circuit being used as well as the address of the specific communication on the virtual circuit. An address for the specific communication is required because multiple communications share the virtual circuit links and the packet-switching cloud needs a way to differentiate one communication from another.




lracut11

  • Member
  • Posts: 536
Reply 2 on: Jul 7, 2018
Wow, this really help


milbourne11

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

For a complete list of videos, visit our video library