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Thread: Chapter 1 - Exam Preparation Questions and Answers

  1. #1
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    Chapter 1 - Exam Preparation Questions and Answers

    1) What is meant by a global command?
    Code:
    a command that is set once and affects the entire router
    2) Which type of cable is used to a COM port of a PC to a COM port of a Cisco router or Cisco switch?
    Code:
    Rolled
    3) Under what two scenarios can devices transmit in an Ethernet network?
    Code:
    1) when they detect no other devices are sending
    2) when the medium is idle
    4) Which two type of Ethernet fiber—optic modes support distances of greater than 550 meters?
    Code:
    1000BASE-LX
    1000BASE-ZX
    5) When does an Ethernet protocol use physical addresses? (define 2 purposes)
    Code:
    1) To uniquely identify devices at layer 2
    2) To allow communication between different devices on the same network
    6) What is the first 24 bits in a MAC address called?
    Code:
    OUI
    
    OUI stands for "Organizationally unique identifier"
    7) Why do we use a router to segment a network?
    Code:
    1) Filtering can occur based on Layer 3 information.
    2) Broadcasts are not forwarded across the router.
    8) What is CSMA/CD ?
    Code:
    It is a set of rules that allows the best—effort transmission of frames in a LAN environment.
    
    Also CSMA/CD stands for "Carrier Sense Multiple Access Collision Detection"
    9) If a connected port on a Cisco switch is not turning orange or green, What would be the most effective steps to troubleshoot this physical layer problem?
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    Code:
    1) Ensure that cables A and B are straight—through cables.
    2) Reset all cables,
    10) How many broadcast domains are shown in the graphic?
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    Code:
    One broadcast domain
    11) What kind of cable should be used to establish a trunk link between two cisco switches?
    Code:
    a cross-over cable
    12) Two buildings on a campus of a small company must be connected to use Ethernet with a bandwidth of at least 100 Mbps. The company is concerned about possible problems from voltage potential difference between the two buildings. Which media type should be used for the connection?
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    Code:
    Fiber Optics cable
    13) Which type of connection should a straight-cable be used ?
    Code:
    1) switch to router
    2) switch to pc
    14) Host A has tested connectivity to a remote network. What is the default gateway for host A?
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    Code:
    172.16.182.1
    15) What type of connection would be supported by the cable diagram shown?
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    Code:
    PC to Router
    Last edited by chandler; 10-24-2012 at 08:35 AM.

  2. #2
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    16) There is a connectivity problem. The host is unable to ping a server connected to Switch_A, what could be the problem Based on the results of the testing?
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    Code:
    A local Physical problem exists
    17) Pinging Host2 from Host1 has failed, What is a possible problem based on that diagram?
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    Code:
    The link between Router1 and Router2 is down
    18) A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network, What is known about the network interface port from this statement?
    Code:
    This is an ethernet port operating at half duplex
    19) Which two benefits are provided by using a hierarchical addressing network addressing scheme?
    Code:
    1) reduces routinq table entries
    2) ease of management and troubleshooting
    20) How many Broadcast domains and collision domains in this network?
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    Code:
    1) There are two broadcast domains in the network.
    2) There are seven collision domains in the network.
    21) What process does the data go through when a host transmits data across a network to another host?
    Code:
    Encapsulation
    22) Which command can be used from a PC to verify the connectivity between host that connect through path?
    Code:
    tracert address
    23) A network engineer is troubleshooting an internet connectivity problem on the computer. What causing the problem?
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    Code:
    Incorrect IP Address
    As The pc has an ip of 192.168.11.2 which is on a different subnet
    24) What kind of cable should be used to make each connection that s identified by the numbers shown?
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    Code:
    1 - Ethernet straight—through cable
    2 - Ethernet straight—through cable
    3 - Serial cable
    4 - Rollover cable
    Last edited by chandler; 10-24-2012 at 08:42 AM.

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