प्रश्न और उत्तर का अभ्यास करें
8प्र: 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? 1308 05b5cc7e8e4d2b41977751ab6
5b5cc7e8e4d2b41977751ab6- 1Send a different source port numberfalse
- 2Restart the virtual circuitfalse
- 3Decrease the sequence numberfalse
- 4Decrease the window sizetrue
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उत्तर : 4. "Decrease the window size"
व्याख्या :
Answer: D) 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.
प्र: When a station sends a transmission to the MAC address ff : ff : ff : ff : ff : ff, what type of transmission is it? 2416 05b5cc7e8e4d2b41977751ab1
5b5cc7e8e4d2b41977751ab1- 1Unicastfalse
- 2Multicastfalse
- 3Anycastfalse
- 4Broadcasttrue
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उत्तर : 4. "Broadcast"
व्याख्या :
Answer: D) Broadcast Explanation: A transmission to the MAC address ff : ff : ff : ff : ff : ff is a broadcast transmission to all stations.
प्र: If a switch has three computers connected to it, with no VLANs present, how many broadcast and collision domains is the switch creating? 2193 05b5cc7e8e4d2b41977751aac
5b5cc7e8e4d2b41977751aac- 1Three broadcast and one collisionfalse
- 2Three broadcast and three collisionfalse
- 3one broadcast and three collisiontrue
- 4One broadcast and one collisionfalse
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उत्तर : 3. "one broadcast and three collision"
व्याख्या :
Answer: C) one broadcast and three collision Explanation: If a switch has three computersconnected to it, with no VLANs present , one broadcast and three collision domains are created.
प्र: If a hub has three computers connected to it, how many broadcast and collision domains is the hub creating? 3118 05b5cc7e8e4d2b41977751aa7
5b5cc7e8e4d2b41977751aa7- 1Three broadcast and one collisionfalse
- 2Three broadcast and three collisionfalse
- 3one broadcast and three collisionfalse
- 4One broadcast and one collisiontrue
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उत्तर : 4. "One broadcast and one collision"
व्याख्या :
Answer: D) One broadcast and one collision Explanation: If a hub has three computers connected to it, one broadcast and one collision domain is created
प्र: What is the purpose of flow control? 1248 05b5cc7e8e4d2b41977751aa2
5b5cc7e8e4d2b41977751aa2- 1To ensure that data is retransmitted if an acknowledgment is not receivedfalse
- 2To reassemble segments in the correct order at the destination devicefalse
- 3To provide a means for the receiver to govern the amount of data sent by the sendertrue
- 4To regulate the size of each segmentfalse
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उत्तर : 3. "To provide a means for the receiver to govern the amount of data sent by the sender"
व्याख्या :
Answer: C) 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.
प्र: Which layer combines bits into bytes and bytes into frames, uses MAC addressing , and provides error detection? 1024 05b5cc7e8e4d2b41977751aa1
5b5cc7e8e4d2b41977751aa1- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
The Data Link layer is responsible for the framing of data packets.
प्र: Which layer is responsible for converting data packets from the Data Link layer into electrical signals? 1363 05b5cc7e8e4d2b41977751aa0
5b5cc7e8e4d2b41977751aa0- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
The physical layer takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
प्र: At which layer is routing implemented , enabling connections and path selection between two end systems? 1581 05b5cc7e8e4d2b41977751a9f
5b5cc7e8e4d2b41977751a9f- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
The Network layer provides routing through an internetwork and logical addressing.

