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Quiz

WEEK4-CNM

tranphuocan0707 22 Fragen

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  1. 1What organization is responsible for Ethernet standards?
    1. AISO
    2. BIEEE
    3. CEIA
    4. DIEC
  2. 2What are three characteristics of Ethernet 802.3? (Choose three.)
    1. ABased on the CSMA/CD process
    2. BIs a standard that has been replaced by Ethernet II
    3. CSpecifies the physical layer (Layer 1)
    4. DDeveloped in the mid-1970s
    5. ESpecifies the MAC portion of the data link layer (Layer 2)
    6. FAlso referred to as thick Ethernet
  3. 3Which statement about an Ethernet address is accurate?
    1. AThe address used in an Ethernet LAN directs data to the proper receiving location.
    2. BThe source address is the 4-byte hexadecimal address of the NIC on the computer that is generating the data packet.
    3. CThe destination address is the 8-byte hexadecimal address of the NIC on the LAN to which a data packet is being sent.
    4. DBoth the destination and source addresses consist of a 6-byte hexadecimal number.
  4. 4Which statement about MAC addresses is accurate?
    1. AA MAC address is a number in hexadecimal format that is physically located on the NIC.
    2. BA MAC address is represented by binary digits that are organized in pairs.
  5. 5Which statement about NICs is accurate?
    1. AThe NIC plugs into a USB port and provides a port for connecting to the network.
    2. BThe NIC communicates with the network through a serial connection and communicates with the computer through a parallel connection.
    3. CThe NIC communicates with the network through a parallel connection and communicates with the computer through a serial connection.
    4. DAn NIC is also referred to as a switch adapter.
  6. 6Which minimum category of UTP is required for Ethernet 1000BASE-T?
    1. ACategory 3
    2. B4
    3. C5
    4. D5E
  7. 7Which three characteristics pertain to UTP? (Choose three.)
    1. AUTP cable is an eight-pair wire.
    2. BAn insulating material covers each of the individual copper wires in UTP cable.
    3. CThe wires in each pair are wrapped around each other.
    4. DThere is limited signal degradation from EMI and RFI.
    5. EThere are seven categories of UTPa cable.
  8. 8Which of the following statements about the functions of a hub are accurate? (Choose two.)
    1. AA hub extends an Ethernet LAN.
    2. BA hub reduces the size of a collision domain.
    3. CAdding a hub eliminates the need for users on a network segment to compete for the same bandwidth.
    4. DA hub is a data link layer device.
    5. EA hub amplifies the data signal before retransmitting it.
  9. 9Which of the following statements best describe collisions? (Choose three.)
    1. ACollisions occur when two or more stations on a shared media transmit at the same time.
    2. BLarger segments are less likely to have collisions.
    3. C. In a collision, the frames are destroyed, and each station in the segment begins a random timer that must be completed before attempting to retransmit the data.
    4. DAdding a hub to a network can improve collision issues.
    5. ECollisions are by-products of a shared LAN.
    6. FMore segments on a network mean greater potential for collisions.
  10. 10Which of these choices best describes a collision domain?
    1. ATwo or more devices trying to communicate at the same time
    2. BTwo networks that are connected
    3. CNetwork segments that share the same bandwidth
    4. DNone of the above

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Quiz am WEEK4-CNM, erstellt von tranphuocan0707 am 06/07/2014.
Sprache
English
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