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- Question
The application layer of a network
Options- A. establishes, maintains, and terminates virtual circuits
- B. defines the user's port into the network
- C. consists of software being run on the computer connected to the network
- D. All of the above
- E. None of the above
- Correct Answer
- consists of software being run on the computer connected to the network
- 1. The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer
Options- A. An additional token is added for every 1,000 nodes
- B. The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500
- C. The network becomes less efficient
- D. After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device
- E. The network becomes more efficient Discuss
- 2. The birthplace of the World Wide Web is considered to be
Options- A. the Department of Defense
- B. CERN
- C. ARPA
- D. Netscape
- E. None of the above Discuss
- 3. Which of the following medium is used for broadband local networks?
Options- A. Coaxial cable
- B. optic fiber
- C. CATV
- D. UTP
- E. None of the above Discuss
- 4. What is the maximum number of entries in the HOSTS file?
Options- A. 8
- B. 255
- C. 500
- D. Unlimited
- E. None of the above Discuss
- 5. An example of a medium-speed, switched communications service is
Options- A. Series 1000
- B. Dataphone 50
- C. DDD
- D. All of the above
- E. None of the above Discuss
- 6. A modem that is attached to the telephone system by jamming the phone's handset into two flexible receptacles in the coupler?
Options- A. gateway
- B. bridge
- C. acoustic coupler
- D. time-division multiplexer
- E. None of the above Discuss
- 7. Which of the following is an important characteristic of LAN?
Options- A. application independent interfaces
- B. unlimited expansion
- C. low cost access for low bandwidth channels
- D. parallel transmission
- E. None of the above Discuss
- 8. A protocol is a set of rules governing a time sequence of events that must take place
Options- A. between peers
- B. between modems
- C. between an interface
- D. across an interface
- E. None of the above Discuss
- 9. How much power (roughly) a light-emitting diode can couple into an optical fiber?
Options- A. 100 microwatts
- B. 440 microwatts
- C. 100 picowatts
- D. 10 milliwatts
- E. None of the above Discuss
- 10. With telecommunications and a personal computer you can
Options- A. "download" free public domain programs
- B. send letters to be printed and delivered by the post office
- C. order goods at a substantial discount
- D. All of the above
- E. None of the above Discuss
Networking problems
Search Results
Correct Answer: The network becomes more efficient
Correct Answer: CERN
Correct Answer: CATV
Correct Answer: Unlimited
Correct Answer: DDD
Correct Answer: acoustic coupler
Correct Answer: application independent interfaces
Correct Answer: between peers
Correct Answer: 100 microwatts
Correct Answer: All of the above
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