Discussion
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- Question
Which of the following statement is incorrect?
Options- A. The CCITT Recommendation X.25 specifies three layers of communication: physical, link and network.
- B. The second layer of communication is the data-link layer
- C. Errors in the physical layer can be detected by the data link layer
- D. The fourth layer, in reference to the OSI model, is the session layer
- E. None of the above
- Correct Answer
- The fourth layer, in reference to the OSI model, is the session layer
- 1. What is the first octet range for a class B IP address?
Options- A. 128 - 255
- B. 1 - 127
- C. 192 - 223
- D. 128 - 191
- E. 127 - 191 Discuss
- 2. What operates in the Data Link and the Network layer?
Options- A. NIC
- B. Bridge
- C. Brouter
- D. Router
- E. None of the above Discuss
- 3. A batch processing terminal would not include a
Options- A. CPU
- B. card reader
- C. card punch
- D. line printer
- E. None of the above Discuss
- 4. To make possible the efficient on-line servicing of many teleprocessing system users on large computer systems, designers are developing
Options- A. communication systems
- B. multiprogramming systems
- C. virtual storage systems
- D. All of the above
- E. None of the above Discuss
- 5. In a synchronous modem, the receive equalizer is known as
Options- A. adaptive equalizer
- B. impairment equalizer
- C. statistical equalizer
- D. compromise equalizer
- E. None of the above Discuss
- 6. What is the minimum number of wires needed to send data over a serial communication link layer?
Options- A. 1
- B. 2
- C. 4
- D. 6
- E. none of the above Discuss
- 7. What is the name of the computer based EMMS that provides a common forum where users can check in at their convenience, post messages, actively exchange ideas and participate in ongoing discussions?
Options- A. E-mail
- B. Bulletin board system (BBS)
- C. Teleconferencing
- D. Videoconferencing
- E. None of the above Discuss
- 8. The network layer, in reference to the OSI model, provide
Options- A. data link procedures that provide for the exchange of data via frames that can be sent and received
- B. the interface between the X.25 network and packet mode device
- C. the virtual circuit interface to packet-switched service
- D. All of the above
- E. None of the above Discuss
- 9. Error detection at a data link level is achieved by
Options- A. bit stuffing
- B. cyclic redundancy codes
- C. Hamming codes
- D. equalization
- E. None of the above Discuss
- 10. Which of the following statement is incorrect?
Options- A. Gateways are assumed to know correct routes; hosts begin with minimal routing information and learn new routes from gateways.
- B. Layered protocols are designed so that layer n at the destination receives exactly the same object sent by layer n at the source.
- C. Application programs as well as all protocol software from the Internet layer upward use only IP addresses; the network interface layer handles physical addresses.
- D. All of the above
- E. None of the above Discuss
Networking problems
Search Results
Correct Answer: 128 - 191
Correct Answer: Brouter
Correct Answer: CPU
Correct Answer: All of the above
Correct Answer: adaptive equalizer
Correct Answer: 2
Correct Answer: Bulletin board system (BBS)
Correct Answer: the virtual circuit interface to packet-switched service
Correct Answer: cyclic redundancy codes
Correct Answer: All of the above
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