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الموضوع: سؤال عن الكايبلات

  1. #1
    عضو
    تاريخ التسجيل
    Dec 2005
    المشاركات
    28
    معدل تقييم المستوى
    0

    Lightbulb سؤال عن الكايبلات



    1
    What is a primary role of the Physical layer in transmitting data on the network?

    create the signals that represent the bits in each frame on to the media
    provide physical addressing to the devices
    determine the path packets take through the network
    control data access to the media

    --

    2
    Which fiber connector supports full duplex Ethernet?






    --

    3
    With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk
    within the cable pairs?

    the magnetic field around the adjacent pairs of wire
    the use of braided wire to shield the adjacent wire pairs
    the reflection of the electrical wave back from the far end of the cable
    the collision caused by two nodes trying to use the media simultaneously

    --

    4
    Which method of signal transmission uses radio waves to carry signals?
    electrical
    optical
    wireless
    acoustic

    --

    5
    In LAN installations where potential electrical hazards(rui ro) or electromagnetic
    interference(nhieu dien tu) may be present, what type of media is recommended for
    backbone cabling?
    coax
    fiber
    Cat5e UTP
    Cat6 UTP
    STP

    --

    6
    When is a straight-through cable used in a network?
    when connecting a router through the console port
    when connecting one switch to another switch
    when connecting a host to a switch
    when connecting a router to another router

    --

    7
    Which characteristics describe fiber optic cable? (Choose two.)
    It is not affected by EMI or RFI.Each pair of cables is wrapped in metallic foil.
    It combines the technique of cancellation, shielding and twisting to protect data.
    It has a maximum speed of 100 Mbps.
    It is the most expensive type of LAN cabling.


    --

    8
    What are three measures of data transfer? (Choose three.)
    goodput
    frequency
    amplitude
    throughput
    crosstalk
    bandwidth

    --

    9
    An installed fiber run can be checked for faults, integrity, and the performance of the
    media by using what device?
    light injector
    OTDR
    TDR
    multimeter

    --

    10
    What characteristic of UTP cable helps reduce the effects of interference?
    the metal braiding in the shielding
    the reflective cladding around core
    the twisting of the wires in the cable
    the insulating material in the outer jacket

    --

    11
    Which type of cable run is most often associated with fiber-optic cable?
    backbone cable
    horizontal cable
    patch cable
    work area cable

    --

    12
    What is considered a benefit(loi ich) of wireless as a media choice?
    more host mobility
    lower security risks
    reduced susceptibility to interference
    less impact of the surroundings on the effective coverage area

    --

    13

    Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet
    connection between Host A and Host B?
    coax cable
    rollover cable
    crossover cable
    straight-through cable

    --

    14
    Which OSI layer is responsible for binary transmission, cable specification, and physical
    aspects of network communication?
    Presentation
    Transport
    Data Link
    Physical

    --

    15
    In most business LANs, which connector is used with twisted-pair networking cable?

    BNC
    RJ-11
    RJ-45
    Type F

    --

    16
    What is a possible effect of improperly applying a connector to a network cable?
    Data will be forwarded to the wrong node.
    Data transmitted through that cable may experience signal loss.
    An improper signaling method will be implemented for data transmitted on that cable.
    The encoding method for data sent on that cable will change to compensate for the improper connection.

    --

    17
    XYZ Company is installing new cable runs on their data network. What two types of
    cable would most commonly be used for new runs? (Choose two.)
    coax
    Cat4 UTP
    Cat5 UTP
    Cat6 UTP
    STP

    --

    18
    Which of the following is a characteristic of single-mode f-optic cable?

    generally uses LEDs as the light source
    relatively larger core with multiple light paths
    less expensive than multimode
    generally uses lasers as the light source

  2. #2
    عضو فضي الصورة الرمزية memoragaa
    تاريخ التسجيل
    Jan 2005
    المشاركات
    1,302
    الدولة: Egypt
    معدل تقييم المستوى
    14

    رد: من منكم يستطيع الاجابة ضروري ...

    اخى الكريم لا يوجد احد يجاوب عليك وذلك لأن عنوان موضوعك مبهم وهذا مخالف لقوانين المنتدى برجاء تغيير العنوان
    شبكاوى قديم مع إيقاف التنفيذ
    لا تنسونا من صالح الدعاء

  3. #3
    عضو
    تاريخ التسجيل
    Dec 2005
    المشاركات
    28
    معدل تقييم المستوى
    0

    رد: من منكم يستطيع الاجابة ضروري ...

    لا استطيع تغيير العنوان ..
    ارجو منكم اجابة هذه الاسئلة ..

  4. #4
    عضو
    تاريخ التسجيل
    Dec 2005
    المشاركات
    28
    معدل تقييم المستوى
    0

    رد: سؤال عن الكايبلات

    ارجو منكم الاجابة
    هذه بعض من اسئلة سيمستر 1 شبتر8 في المنهج الجديد ccna4.0

  5. #5
    عضو
    تاريخ التسجيل
    Dec 2005
    المشاركات
    28
    معدل تقييم المستوى
    0

    Lightbulb رد: سؤال عن الكايبلات

    شكرا على الردود الهائلة ..

    وإليكم الاجابة الصحيحة .. بعد اجتياز الامتحان بنسبة 95% ..

    اقتباس المشاركة الأصلية كتبت بواسطة ssssssss مشاهدة المشاركة
    1
    What is a primary role of the Physical layer in transmitting data on the network?

    create the signals that represent the bits in each frame on to the media
    provide physical addressing to the devices
    determine the path packets take through the network
    control data access to the media

    --

    2
    Which fiber connector supports full duplex Ethernet?





    --

    3
    With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk
    within the cable pairs?

    the magnetic field around the adjacent pairs of wire
    the use of braided wire to shield the adjacent wire pairs
    the reflection of the electrical wave back from the far end of the cable
    the collision caused by two nodes trying to use the media simultaneously

    --

    4
    Which method of signal transmission uses radio waves to carry signals?
    electrical
    optical
    wireless
    acoustic

    --

    5
    In LAN installations where potential electrical hazards(rui ro) or electromagnetic
    interference(nhieu dien tu) may be present, what type of media is recommended for
    backbone cabling?
    coax
    fiber
    Cat5e UTP
    Cat6 UTP
    STP

    --

    6
    When is a straight-through cable used in a network?
    when connecting a router through the console port
    when connecting one switch to another switch
    when connecting a host to a switch
    when connecting a router to another router

    --

    7
    Which characteristics describe fiber optic cable? (Choose two.)
    It is not affected by EMI or RFI.
    Each pair of cables is wrapped in metallic foil.
    It combines the technique of cancellation, shielding and twisting to protect data.
    It has a maximum speed of 100 Mbps.
    It is the most expensive type of LAN cabling.


    --

    8
    What are three measures of data transfer? (Choose three.)
    goodput
    frequency
    amplitude
    throughput
    crosstalk
    bandwidth

    --

    9
    An installed fiber run can be checked for faults, integrity, and the performance of the
    media by using what device?
    light injector
    OTDR
    TDR
    multimeter

    --

    10
    What characteristic of UTP cable helps reduce the effects of interference?
    the metal braiding in the shielding
    the reflective cladding around core
    the twisting of the wires in the cable
    the insulating material in the outer jacket

    --

    11
    Which type of cable run is most often associated with fiber-optic cable?
    backbone cable
    horizontal cable
    patch cable
    work area cable

    --

    12
    What is considered a benefit(loi ich) of wireless as a media choice?
    more host mobility
    lower security risks
    reduced susceptibility to interference
    less impact of the surroundings on the effective coverage area

    --

    13

    Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet
    connection between Host A and Host B?
    coax cable
    rollover cable
    crossover cable
    straight-through cable

    --

    14
    Which OSI layer is responsible for binary transmission, cable specification, and physical
    aspects of network communication?
    Presentation
    Transport
    Data Link
    Physical

    --

    15
    In most business LANs, which connector is used with twisted-pair networking cable?

    BNC
    RJ-11
    RJ-45
    Type F

    --

    16
    What is a possible effect of improperly applying a connector to a network cable?
    Data will be forwarded to the wrong node.
    Data transmitted through that cable may experience signal loss.
    An improper signaling method will be implemented for data transmitted on that cable.
    The encoding method for data sent on that cable will change to compensate for the improper connection.

    --

    17
    XYZ Company is installing new cable runs on their data network. What two types of
    cable would most commonly be used for new runs? (Choose two.)
    coax
    Cat4 UTP
    Cat5 UTP
    Cat6 UTP
    STP

    --

    18
    Which of the following is a characteristic of single-mode f-optic cable?

    generally uses LEDs as the light source
    relatively larger core with multiple light paths
    less expensive than multimode
    generally uses lasers as the light source

  6. #6
    عضو برونزي
    تاريخ التسجيل
    May 2007
    المشاركات
    1,475
    معدل تقييم المستوى
    12

    رد: سؤال عن الكايبلات



    أخي والله انت لازم تراعي ظروف اخوانك ؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟؟
    يعني انت بتقول شكرا علي الردود الهائله !!!!!!!!!! لا تعليق
    بس والله انا كان عندي امتحاون واليوم لسه مخلص جزئ من الامتحانات ولسه باقي ولوجود فرصه للدخول بالمنتدي دخلت ورديت
    شكرا انت اخي وللعلم انت احتجت شئ اكتب واعتذر لنا العذر ان لم نقدر نرد عليك فربما لام اسمك خطاء يدخل كثير يعتقد شئ اخر
    ولربما انشغالنا بمشاغل تجعلنا ندخل المنتدي كل فترات علي مقدرتنا
    أتمني ان تصل حسن نوايايا اليك والا تغضب مني
    اخوك هندسه العاشر
    -------------------------------------------
    [B][SIZE=4]فين الاسئله يا شباب في اقسام Cisco
    عاوزين اسئله في الVoice و الData
    عاوزين نقدر نفدكم [/SIZE][/B]

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