Internet Working Questions and Answers updated daily – Networking



10 Internet Working Questions and answers section with explanation for various online exam preparation, various interviews, Networking Internet Working online test. Internet Working Questions with detailed description, explanation will help you to master the topic.

Internet Working Questions

1.
Which of the following types of connections can use full duplex?

Hub to hub
Switch to switch
Host to host
Switch to hub
Switch to hostwing types of connections can use full duplex?



SHOW ANSWER
Correct Ans:2, 3 and 5
Explanation:
Hubs cannot run full-duplex Ethernet. Full duplex must be used on a point-to-point connection between two devices capable of running full duplex. Switches and hosts can run full duplex between each other, but a hub can never run full duplex.


2.
What are two purposes for segmentation with a bridge?

To add more broadcast domains.
To create more collision domains.
To add more bandwidth for users.
To allow more broadcasts for users.



SHOW ANSWER
Correct Ans:2 and 3
Explanation:
Bridges break up collision domains, which allow more bandwidth for users


3.
Which of the following are types of flow control?

Buffering
Cut-through
Windowing
Congestion avoidance



SHOW ANSWER
Correct Ans:1, 3 and 4
Explanation:
The common types of flow control are buffering, windowing, and congestion avoidance.


4.
Which three statements are true about the operation of a full-duplex Ethernet network?

There are no collisions in full-duplex mode.
A dedicated switch port is required for each full-duplex node.
Ethernet hub ports are preconfigured for full-duplex mode.
In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
The host network card and the switch port must be capable of operating in full-duplex mode.



SHOW ANSWER
Correct Ans:1, 2, and 5
Explanation:
Full-duplex means you are using both wire pairs simultaneously to send and receive data. You must have a dedicated switch port for each node, which means you will not have collisions. Both the host network card and the switch port must be capable and set to work in full-duplex mode.


5. What is the purpose of flow control?



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Correct Ans:To provide a means for the receiver to govern the amount of data sent by the sender.
Explanation:
Flow control allows the receiving device to control the transmitter so the receiving device's buffer does not overflow.


6. What are the decimal and hexadecimal equivalents for the binary number 10110111?



SHOW ANSWER
Correct Ans:183/B7
Explanation:
You must be able to take a binary number and convert it into both decimal and hexadecimal. To convert to decimal, just add up the 1s using their values. The values that are turned on with the binary number of 10110111 are 128 + 32 + 16 + 4 + 2 + 1 = 183. To get the hexadecimal equivalent, you need to break the eight binary digits into nibbles (4 bits), 1011 and 0111. By add- ing up these values, you get 11 and 7. In hexadecimal, 11 is B, so the answer is 0xB7.


7. A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?



SHOW ANSWER
Correct Ans:Decrease the window size.
Explanation:
A receiving host can control the transmitter by using flow control (TCP uses Windowing by default). By decreasing the window size, the receiving host can slow down the transmitting host so the receiving host does not overflow its buffers.


8.
Which of the following describe router functions?



SHOW ANSWER
Correct Ans:All of the above
Explanation:
Routers provide packet switching, packet filtering, internetwork communication, and path selection.


9. Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____. Word processing operates at layer _____.



SHOW ANSWER
Correct Ans:3, 2, 1, none
Explanation:
Routers operate at layer 3. LAN switches operate at layer 2. Ethernet hubs operate at layer 1. Word processing applications communicate to the Application layer interface, but do not operate at layer 7, so the answer would be none.


10.
Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?

Switch
NIC
Hub
Repeater
RJ45 transceiver



SHOW ANSWER
Correct Ans:3 and 4
Explanation:
Not that you really want to enlarge a single collision domain, but a hub (multiport repeater) will provide this for you.



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