Computer Networking Multiple Choice Questions - ObjectiveBooks

Computer Networking Multiple Choice Questions

Practice Test: Question Set - 29


1. An anticipated result from multiprogramming operations is:
    (A) Reduced computer idle time
    (B) The handling of more jobs
    (C) Better scheduling of work
    (D) All of the above

2. The interactive transmission of data within a time sharing system may be best suited to
    (A) Simplex lines
    (B) Half-duplex lines
    (C) Full-duplex lines
    (D) Biflex-line

3. With an IP address set starting with 150, you currently have six offices that you are treating as subnets. Plans are in place to open 10 more offices before the end of the year. What subnet mask should you use to satisfy the needed number of subnets and maximize the number of hosts available at each site?
    (A) 192
    (B) 224
    (C) 240
    (D) 248

4. The most important part of a multiple DHCP configurations is to make sure you don't have which of the following in the different scopes? Select the best answer.
    (A) Duplicate addresses
    (B) Duplicate pools
    (C) Duplicate subnets
    (D) Duplicate default gateways

5. Which of the following is a voice-band channel?
    (A) Telephone line
    (B) Telegraph line
    (C) Coaxial cable
    (D) Microwave systems

6. In CRC there is no error if the remainder at the receiver is _______.
    (A) The quotient at the sender
    (B) Nonzero
    (C) Zero
    (D) Equal to the remainder at the sender

7. Modulation is the process of
    (A) Converting analog signals to digital signals
    (B) Converting digital signals to analog signals
    (C) Multiplexing various signals into high speed line signals
    (D) Performing data encryption

8. Information systems with common hardware, software, and network standards that provide easy access for end users and their networked computer systems. Select the best fit for answer:
    (A) TCP/IP
    (B) Protocol
    (C) Open Systems
    (D) Internetwork processor

9. Demodulation is a process of
    (A) Converting analog to digital signals
    (B) Converting digital to analog signals
    (C) Multiplexing various signals into one high speed line signals
    (D) Performing data description

10. A proposed network infrastructure of interconnected local, regional, and global networks that would support universal interactive multimedia communications. Select the best fit for answer:
    (A) Internetworked enterprise
    (B) Information super highway
    (C) Business applications of telecommunications
    (D) Client/Server networks

11. You are working with three networks that have the network IDs 192.168.5.0, 192.168.6.0, and 192.168.7.0. What subnet mask can you use to combine these addresses into one?
    (A) 255.255.252.0
    (B) 225.255.254.0
    (C) 255.255.255.240
    (D) 255.255.255.252

12. The amount of uncertainty in a system of symbol is called
    (A) Bandwidth
    (B) Entropy
    (C) Loss
    (D) Quantum

13. Error rate is
    (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 specific 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 errors is detected
    (D) The ratio of the number of data units in error to the total number of data units

14. What frequency range is used for microwave communications, satellite and radar?
    (A) Low Frequency : 30 kHz to 300 kHz
    (B) Medium Frequency : 300 kHz to 3 MHz
    (C) Super High Frequency : 3000 MHz to 30000 MHz
    (D) Extremely High Frequency : 30,000 MHz

15. Which of the following layer protocols are responsible for user and the application program support such as passwords, resource sharing, file transfer and network management?
    (A) Layer 7 protocols
    (B) Layer 6 protocols
    (C) Layer 5 protocols
    (D) Layer 4 protocols

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