Discussion
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- Question
The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:
Options- A. modulation
- B. demodulation
- C. synchronizing
- D. synchronizing
- E. None of the above
- Correct Answer
- demodulation
- 1. The basic Ethernet design does not provide
Options- A. access control
- B. addressing
- C. automatic retransmission of a message
- D. multiple virtual networks
- E. None of the above Discuss
- 2. Videotex is a combination of
Options- A. television
- B. communication
- C. computer technology
- D. All of the above
- E. None of the above Discuss
- 3. Which of the following frequency ranges is used for AM radio transmission?
Options- A. Very Low Frequency : 3 kHz to 30 kHz
- B. Medium Frequency : 300 kHz to 3 MHz
- C. High Frequency : 3 MHz to 30 MHz
- D. Very High Frequency : 30 MHz to 300 MHz
- E. None of the above Discuss
- 4. Which of the following services dynamically resolves NetBIOS-to-IP resolution?
Options- A. DNS
- B. DHCP
- C. WINS
- D. LMHOSTS
- E. None of the above Discuss
- 5. Phase shift keying (psk) method is used to modulate digital signals at 9600 bps using 16 levels. Find the line signaling speed (i.e., modulation rate)
Options- A. 2400 bands
- B. 1200 bands
- C. 4800 bands
- D. 9600 bands. Discuss
- 6. You are in the process of analyzing a problem that requires you to collect and store TCP/IP Packets. Which of the following utilities is best suited for this purpose?
Options- A. NBTSTAT
- B. Performance Monitor
- C. NETSTAT
- D. Network Monitor
- E. DHCP Management Console Discuss
- 7. When you connect to an online information service, you are asked to provide some kind of identification such as your name, an account number and a password. What is the name given to this brief dialogue between you and the information system?
Options- A. Security procedure
- B. Safeguard procedure
- C. Identification procedure
- D. Log-on procedure
- E. None of the above Discuss
- 8. Baseband is
Options- A. transmission of signals without modulation
- B. a signal all of whose energy is contained within a finite frequency range
- C. the simultaneous transmission of data to a number of stations
- D. All of the above
- E. None of the above Discuss
- 9. The most flexibility in how devices are wired together is provided by
Options- A. bus networks
- B. ring networks
- C. star networks
- D. T-switched networks
- E. None of the above Discuss
- 10. The communication mode that supports data in both directions at the same time is
Options- A. simplex
- B. half-duplex
- C. full-duplex
- D. multiplex
- E. None of the above Discuss
Networking problems
Search Results
Correct Answer: automatic retransmission of a message
Correct Answer: All of the above
Correct Answer: Medium Frequency : 300 kHz to 3 MHz
Correct Answer: WINS
Correct Answer: 2400 bands
Correct Answer: Network Monitor
Correct Answer: Log-on procedure
Correct Answer: transmission of signals without modulation
Correct Answer: bus networks
Correct Answer: full-duplex
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