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- Question
The packets switching concept was first proposed
Options- A. in the late 1980s for the Defense Ministry of US.
- B. in the early 1960s for military communication systems, mainly to handle speech
- C. in the late 1950s for Defense Ministry of US
- D. All of the above
- E. None of the above
- Correct Answer
- in the early 1960s for military communication systems, mainly to handle speech
- 1. The Internet Control Message Protocol (ICMP)
Options- A. allows gateways to send error a control messages to other gateways or hosts
- B. provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
- C. reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem
- D. All of the above
- E. None of the above Discuss
- 2. Satellite-Switched Time-Division Multiple Access (SS/TDMA) is
Options- A. the method of determining which device has access to the transmission medium at any time.
- B. a medium access control technique for multiple access transmission media
- C. a form of TDMA in which circuit switching is used to dynamically change the channel assignments
- D. All of the above
- E. None of the above Discuss
- 3. Eight stations are competing for the use of a shared channel using the 'Adaptive tree Walk Protocol'. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention?
Options- A. 7 slots
- B. 5 slots
- C. 10 slots
- D. 14 slots Discuss
- 4. Internet-like networks within an enterprise.
Options- A. Intranets
- B. Switching alternating
- C. Inter organizational networks
- D. Extranets Discuss
- 5. Which of the following device is used to connect two systems, especially if the systems use different protocols?
Options- A. hub
- B. bridge
- C. gateway
- D. repeater
- E. None of the above Discuss
- 6. Which of the following condition is used to transmit two packets over a medium at the same time?
Options- A. Contention
- B. Collision
- C. Synchronous
- D. Asynchronous
- E. None of the above Discuss
- 7. The synchronous modems are more costly than the asynchronous modems because
Options- A. they produce large volume of data
- B. they contain clock recovery circuits
- C. they transmit the data with stop and start bits.
- D. they operate with a larger bandwidth
- E. None of the above Discuss
- 8. Which of the following is required to communicate between two computers?
Options- A. communications software
- B. protocol
- C. communications hardware
- D. access to transmission medium
- E. All of the above Discuss
- 9. What device separates a single network into two segments but lets the two segments appear as one to higher protocols?
Options- A. Switch
- B. Bridge
- C. Gateway
- D. Router Discuss
- 10. A station in a network forwards incoming packets by placing them on its shortest output queue. What routing algorithm is being used?
Options- A. hot potato routing
- B. flooding
- C. static routing
- D. delta routing
- E. None of the above Discuss
Networking problems
Search Results
Correct Answer: All of the above
Correct Answer: a form of TDMA in which circuit switching is used to dynamically change the channel assignments
Correct Answer: 7 slots
Correct Answer: Intranets
Correct Answer: gateway
Correct Answer: Collision
Correct Answer: they contain clock recovery circuits
Correct Answer: All of the above
Correct Answer: Bridge
Correct Answer: hot potato routing
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