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- Question
A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. Differential PCM with 4 bit relative signal value is used. Then how many bits per second are actually sent?
Options- A. 32 Kbps
- B. 64 Kbps
- C. 8 Kbps
- D. 128 Kbps.
- Correct Answer
- 32 Kbps
- 1. A band is always equivalent to
Options- A. a byte
- B. a bit
- C. 100 bits
- D. 16 bits
- E. None of the above Discuss
- 2. An example of digital, rather than analog, communication is
Options- A. DDD
- B. DDS
- C. WATS
- D. DDT
- E. None of the above Discuss
- 3. ARP (Address Resolution Protocol) is
Options- A. a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
- B. a TCP/IP high level protocol for transferring files from one machine to another
- C. a protocol used to monitor computers
- D. a protocol that handles error and control messages
- E. None of the above Discuss
- 4. Which of the following allows a simple email service and is responsible for moving messages from one mail server to another?
Options- A. IMAP
- B. DHCP
- C. SMTP
- D. FTP
- E. POP3 Discuss
- 5. A proposed network infrastructure of interconnected local, regional, and global networks that would support universal interactive multimedia communications. Select the best fit for answer:
Options- A. Internetworked enterprise
- B. Information super highway
- C. Business applications of telecommunications
- D. Client/Server networks Discuss
- 6. Which of the following digits are known as the sub-address digits (for use by the user) of the Network User Address (NUA)?
Options- A. 5-7
- B. 1-4
- C. 8-12
- D. 13-14
- E. None of the above Discuss
- 7. A software that allows a personal computer to pretend it as a terminal is
Options- A. auto-dialing
- B. bulletin board
- C. modem
- D. terminal emulation
- E. None of the above Discuss
- 8. Error detecting code is
Options- A. an error-detecting code based on a summation operation performed on the bits to be checked
- B. a check bit appended to an array of binary digits to make the sum of all the binary digits.
- C. a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and thus the presence of the error is detected.
- D. the ratio of the data units in error to the total number of data units
- E. None of the above Discuss
- 9. What is the loopback address?
Options- A. 127.0.0.1
- B. 255.0.0.0
- C. 255.255.0.0
- D. 255.255.255.255.0
- E. None of the above Discuss
- 10. What is the port number for HTTP?
Options- A. 99
- B. 86
- C. 80
- D. 23 Discuss
Networking problems
Search Results
Correct Answer: None of the above
Correct Answer: DDS
Correct Answer: a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
Correct Answer: SMTP
Correct Answer: Information super highway
Correct Answer: 13-14
Correct Answer: auto-dialing
Correct Answer: a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and thus the presence of the error is detected.
Correct Answer: 127.0.0.1
Correct Answer: 80
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