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CSE :: Networking

  1. Demodulation is the process of

  2. A.
    converting digital signals to analog signals
    B.
    converting analog signals to digital signals
    C.
    combining many low speed channels into one high speed channel
    D.
    dividing the high-speed signals into frequency bands
    E.
    None of the above

  3. Which of the following statement is incorrect?

  4. A.
    The Addresses Resolution Protocol, ARP, allows a host to find the physical address of a target host on the same physical network, given only the target IP address.
    B.
    The sender's IP - to- physical address binding is included in every ARP broadcast; receivers update the IP-to-Physical address binding information in their cache before processing an ARP packet.
    C.
    ARP is a low-level protocol that hides the underlying network physical addressing, permitting us to assign IP-addresses of our choice to every machine.
    D.
    All of the above
    E.
    None of the above

  5. You are working with a network that has the network ID 192.168.10.0. What subnet should you use that supports up to 25 hosts and a maximum number of subnets?

  6. A.
    255.255.255.192
    B.
    255.255.255.224
    C.
    255.255.255.240
    D.
    255.255.255.248
    E.
    255.255.255.252

  7. Which of the following best illustrates the default subnet mask for a class A,B, and C Network?

  8. A.
    0.0.0.0, 0.0.0.1, 0.0.1.1
    B.
    255.255.255.0, 255.255.0.0, 255.0.0.0
    C.
    255.0.0.0, 255.255.0.0, 255.255.255.0
    D.
    255.255.0.0, 255.255.255.0, 255.255.255.255
    E.
    None of the above

  9. Modulation is the process of

  10. 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.

  11. Devices interconnected by the LAN should include

  12. A.
    Computers and terminals
    B.
    mass storage device, printers and plotters
    C.
    bridges and gateways
    D.
    All of the above
    E.
    None of the above

  13. What are the data transmission channels available for carrying data from one location to another?

  14. A.
    Narrowband
    B.
    Voiceband
    C.
    Broadband
    D.
    All of the above
    E.
    None of the above

  15. On a class B network, how many hosts are available at each site with a subnet mask of 248?

  16. A.
    16,382
    B.
    8,190
    C.
    4,094
    D.
    2,046
    E.
    1,022

  17. Which of the following technique is used for encapsulation?

  18. A.
    a technique used in best-effort delivery systems to avoid endlessly looping packets.
    B.
    a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.
    C.
    One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
    D.
    All of the above
    E.
    None of the above

  19. 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?

  20. A.
    255.255.252.0
    B.
    225.255.254.0
    C.
    255.255.255.240
    D.
    255.255.255.252