Data communication and networking Questions Practice Question and Answer

Q:

Which of the following is the most difficult and secure device that LAN uses?

512 0

  • 1
    static router
    Correct
    Wrong
  • 2
    IP Enabled Router
    Correct
    Wrong
  • 3
    dynamic router
    Correct
    Wrong
  • 4
    RIP enabled router
    Correct
    Wrong
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Answer : 1. "static router"

Q:

Which cobble is used to send modulated light?

429 0

  • 1
    Category 3 UTP
    Correct
    Wrong
  • 2
    Category 5 UTP
    Correct
    Wrong
  • 3
    fiber
    Correct
    Wrong
  • 4
    coax
    Correct
    Wrong
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Answer : 3. "fiber"
Explanation :

It seems there might be a confusion in your question. If you are referring to the technology used for transmitting data using modulated light, the term you are looking for is "fiber optic cable" or simply "fiber." Fiber optic cables are thin, flexible strands of glass or plastic that transmit data as modulated light pulses. They are widely used for high-speed data transmission over long distances due to their ability to carry large amounts of data with low attenuation and high bandwidth capabilities.

Q:

Which device is designed to send packets using package addresses?

404 0

  • 1
    Specialty Hub
    Correct
    Wrong
  • 2
    switching hub
    Correct
    Wrong
  • 3
    Port Hub
    Correct
    Wrong
  • 4
    filtering hub
    Correct
    Wrong
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Answer : 2. "switching hub"
Explanation :

A switching hub, also known as a network switch, is designed to send packets using package addresses. A network switch operates at the data link layer of the OSI model and uses MAC addresses to forward data frames to specific devices within a local area network (LAN). Unlike a hub, which simply broadcasts data to all devices in the network, a switch intelligently forwards packets only to the device intended to receive the data, increasing network efficiency and reducing unnecessary network traffic.

Q:

Which components are used in LAN for Ethernet?

404 0

  • 1
    COAX
    Correct
    Wrong
  • 2
    Fiber
    Correct
    Wrong
  • 3
    STP
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 4. "All of the above"
Explanation :

All three components—COAX (coaxial cables), Fiber (optical fiber cables), and STP (shielded twisted pair cables)—can be used in LANs for Ethernet connectivity, depending on specific network requirements and conditions. Different types of Ethernet cables, including coaxial, fiber optic, and shielded twisted pair, are used based on factors such as data transfer speed, distance, and susceptibility to electromagnetic interference.


Q:

The company has a large network which is divided into smaller parts. By using which device LAN can be divided into different parts?

382 0

  • 1
    an internal firewall
    Correct
    Wrong
  • 2
    router between subnets
    Correct
    Wrong
  • 3
    individual switch for department
    Correct
    Wrong
  • 4
    all of the above
    Correct
    Wrong
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Answer : 4. "all of the above"

Q:

Which subnet is used for LAN security to bring stability in the Internet network?

371 0

  • 1
    static router
    Correct
    Wrong
  • 2
    dynamic router
    Correct
    Wrong
  • 3
    static switch
    Correct
    Wrong
  • 4
    dynamic switch
    Correct
    Wrong
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Answer : 1. "static router"

Q:

Which of the following devices tells the difference between multicast and unicast packets?

321 0

  • 1
    multicast switch
    Correct
    Wrong
  • 2
    developed
    Correct
    Wrong
  • 3
    advanced router
    Correct
    Wrong
  • 4
    multicast router
    Correct
    Wrong
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Answer : 1. "multicast switch"
Explanation :

Multicast switch


Q:

Which statement is true for Router and Wretch?

314 0

  • 1
    Wretch connects two networks at data link layer
    Correct
    Wrong
  • 2
    Router is more useful
    Correct
    Wrong
  • 3
    Router connects two networks at the Network Layer.
    Correct
    Wrong
  • 4
    both (a) and (c)
    Correct
    Wrong
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Answer : 4. "both (a) and (c)"

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