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- Question
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
- Correct Answer
- Collision
- 1. 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 Discuss
- 2. 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
- 3. 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
- 4. 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
- 5. Internet-like networks within an enterprise.
Options- A. Intranets
- B. Switching alternating
- C. Inter organizational networks
- D. Extranets Discuss
- 6. 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
- 7. 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
- 8. 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
- 9. 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
- 10. You have a class A network address 10.0.0.0 with 40 subnets, but are required to add 60 new subnets very soon. You would like to still allow for the largest possible number of host IDs per subnet. Which subnet mask should you assign?
Options- A. 255.240.0.0
- B. 255.248.0.0
- C. 255.252.0.0
- D. 255.254.0.0
- E. 255.255.255.255 Discuss
Networking problems
Search Results
Correct Answer: in the early 1960s for military communication systems, mainly to handle speech
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: they contain clock recovery circuits
Correct Answer: All of the above
Correct Answer: Bridge
Correct Answer: hot potato routing
Correct Answer: 255.254.0.0
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