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- Question
The difference between a multiplexer and a statistical multiplexer is
Options- A. Statistical multiplexers need buffers while multiplexers do not need buffers
- B. Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol
- C. Multiplexers often waste the output link capacity while statistical multiplexers optimize its use
- D. Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)
- E. None of the above
- Correct Answer
- Statistical multiplexers need buffers while multiplexers do not need buffers
- 1. The transport layer protocol is connectionless.
Options- A. NVT
- B. FTP
- C. TCP
- D. UDP
- E. None of the above Discuss
- 2. Which application allows a user to access and change remote files without actual transfer?
Options- A. TELNET
- B. NFS
- C. FTP
- D. DNS
- E. None of the above Discuss
- 3. MAC is
Options- A. a method of determining which device has access to the transmission medium at any time
- B. a method access control technique or multiple-access transmission media
- C. a very common bit-oriented data link protocol issued to ISO.
- D. network access standard for connecting stations to a circuit-switched network
- E. None of the above Discuss
- 4. The fundamental requirements of private-to-public network interconnection methods which need to be provided in gateways is/are
Options- A. universal accessibility for private network Data Terminal Equipment (DTE)
- B. adequate cost control mechanisms for administration of the private networks
- C. to assign address to private network DTEs
- D. a and b both
- E. None of the above Discuss
- 5. You are trying to decide which type of network you will use at your office, and you want the type that will provide communication and avoid collisions on the cable. Which of the following is the best choice?
Options- A. Token-Ring
- B. CSMA/CD
- C. Ethernet
- D. CSMA/CA
- E. ARCnet Discuss
- 6. Error control is needed at the transport layer because of potential errors occurring _____.
Options- A. from transmission line noise
- B. in routers
- C. from out-of-sequence delivery
- D. from packet losses. Discuss
- 7. A decrease in magnitude of current, voltage, a power of a signal in transmission between points, is known as
Options- A. Attenuation
- B. Amplitude
- C. Aloha
- D. Carrier
- E. None of the above Discuss
- 8. Which of the following communications service provides message preparation and transmission facilities?
Options- A. Teletex
- B. Teletext
- C. x400
- D. Fax
- E. None of the above Discuss
- 9. A network that requires human intervention of route signals is called a
Options- A. bus network
- B. ring network
- C. star network
- D. T-switched network
- E. None of the above Discuss
- 10. When UPC is used, the price of the item is located
Options- A. on the item
- B. on the item and on the shelf
- C. in computer storage
- D. on the shelf and in computer storage
- E. None of the above Discuss
Networking problems
Search Results
Correct Answer: UDP
Correct Answer: NFS
Correct Answer: a method of determining which device has access to the transmission medium at any time
Correct Answer: a and b both
Correct Answer: Token-Ring
Correct Answer: in routers
Correct Answer: Attenuation
Correct Answer: Teletex
Correct Answer: T-switched network
Correct Answer: on the shelf and in computer storage
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