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Networking :

Internet Working




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

Switch
NIC
Hub
Repeater
RJ45 transceiver

1 only
1 and 3
3 and 4
5 only




2.
Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____. Word processing operates at layer _____.

3, 3, 1, 7
3, 2, 1, none
3, 2, 1, 7
3, 3, 2, none




3.
Which of the following describe router functions?

Packet switching
Packet filtering
Internetwork communication
Path selection
All of the above




4.
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?

Send a different source port number.
Restart the virtual circuit.
Decrease the sequence number.
Decrease the window size.




5.
What are the decimal and hexadecimal equivalents for the binary number 10110111?

69/0x2102
183/B7
173/A6
83/0xC5




6.
What is the purpose of flow control?

To ensure that data is retransmitted if an acknowledgment is not received.
To reassemble segments in the correct order at the destination device.
To provide a means for the receiver to govern the amount of data sent by the sender.
To regulate the size of each segment.




7.
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.

1, 2, and 5
2 and 4
2, 3 and 4
5 only




8.
Which of the following are types of flow control?

Buffering
Cut-through
Windowing
Congestion avoidance

1 and 2
1, 3 and 4
2 only
3 only




9.
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.

1 only
2 and 3
2 and 4
4 only




10.
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?

1, 2 and 4
3 and 4
3 and 5
2, 3 and 5










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FreshersLive - No.1 Job site in India. Here you can find latest 2016 government as well as private job recruitment notifications for different posts vacancies in India. Get top company jobs for both fresher and experienced. Job Seekers can get useful interview tips, resume services & interview Question and answer. Practice online test free which is helpful for interview preparation. Register with us to get latest employment news/rojgar samachar notifications. Also get latest free govt and other sarkari naukri job alerts daily through E-mail.