A network with bandwidth of 10 Mbps can pass only an average of 15,000 frames per minute with each frame carrying an average of 8,000 bits. What is the throughput of this network ?
| A. | 2 Mbps |
| B. | 60 Mbps |
| C. | 120 Mbps |
| D. | 10 Mbps |
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Option: A Explanation :
In data transmission, throughput is the amount of data moved successfully from one place to another in a given period of time, and typically measured in bits per second (bps), or in megabits per second (Mbps) or gigabits per second (Gbps).
Here, Throughput = 15000 x 8000/60 = 2 Mbps
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Consider a subnet with 720 routers. If a three-level hierarchy is choosen with eight clusters, each containing 9 regions of 10 routers, then total number of entries in the routing table is ...................
| A. | 25 |
| B. | 27 |
| C. | 53 |
| D. | 72 |
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Option: A Explanation :
Each router needs 10 entries for local routers, 8 entries for routing to other regions within its own cluster, and 7 entries for distant clusters, for a total of 25 entries.
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| A. | refers to the current network |
| B. | refers to broadcast on the local network |
| C. | refers to broadcast on a distant network |
| D. | refers to loopback testing |
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Option: B Explanation : Click on Discuss to view users comments. |
In electronic mail, which of the following protocols allows the transfer of multimedia messages?
| A. | IMAP |
| B. | SMTP |
| C. | POP 3 |
| D. | MIME |
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Option: D Explanation : Click on Discuss to view users comments. |
A device is sending out data at the rate of 2000 bps. How long does it take to send a file of 1,00,000 characters ?
| A. | 50 |
| B. | 200 |
| C. | 400 |
| D. | 800 |
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Option: C Explanation :
1,00,000 characters = 1,00,000 x 8 bits = 8,00,000 bits
8,00,000 bits/2000 bps = 400 seconds
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