MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Networks knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Ethernet belongs to which standard? |
| A. | IEEE 802.2 |
| B. | IEEE 802.3 |
| C. | IEEE 802.4 |
| D. | IEEE 802.5 |
| Answer» C. IEEE 802.4 | |
| 2. |
In which of the topology, each device has a dedicated point-to-point link to a central controller? |
| A. | Mesh |
| B. | Bus |
| C. | Ring |
| D. | Star |
| Answer» E. | |
| 3. |
Ether LAN uses |
| A. | Polar encoding |
| B. | Differential Manchester encoding |
| C. | Manchester encoding |
| D. | NRZ |
| Answer» D. NRZ | |
| 4. |
Host A sends a UDP datagram containing 8880 bytes of user data to host B over an Ethernet LAN. Ethernet frames may carry data up to 1500 bytes (i.e. MTU = 1500 bytes). Size of UDP header is 8 bytes and size of IP header is 20 bytes. There is no option field in IP header. How many total number of IP fragments will be transmitted and what will be the contents of offset field in the last fragment? |
| A. | 6 and 925 |
| B. | 6 and 7400 |
| C. | 7 and 1110 |
| D. | 7 and 8880 |
| Answer» D. 7 and 8880 | |
| 5. |
Consider two hosts X and Y, connected by a single direct link of rate 106 bits/sec. The distance between the two hosts is 10,000 km and the propagation speed along the link is 2 × 108 m/sec. Host X sends a file of 50,000 bytes as one large message to host Y continuously. Let the transmission and propagation delays be p milliseconds and q milliseconds, respectively. Then the values of p and q are |
| A. | p = 50 and q = 100 |
| B. | p = 50 and q = 400 |
| C. | p = 100 and q = 50 |
| D. | p = 400 and q = 50 |
| Answer» E. | |
| 6. |
In networking terminology UTP means |
| A. | Uniquitous teflon port |
| B. | Uniformly terminating port |
| C. | Unshielded twisted pair |
| D. | Unshielded T-connector port |
| Answer» D. Unshielded T-connector port | |
| 7. |
In Ethernet CSMA/CD, the special bit sequence is transmitted by media access management to handle collision is called |
| A. | Preamble |
| B. | Postamble |
| C. | Jam |
| D. | None of these |
| Answer» D. None of these | |
| 8. |
_______ is an example of full duplex system. |
| A. | Monitor |
| B. | Telephone |
| C. | Walkie-Talkie |
| D. | Keyboard |
| Answer» C. Walkie-Talkie | |
| 9. |
A mechanism or technology used in Ethernet by which two connected devices choose common transmission parameters such as speed, duplex mode and flow control is called |
| A. | Autosense |
| B. | Synchronization |
| C. | Pinging |
| D. | Auto negotiation |
| Answer» E. | |
| 10. |
If there are n devices (nodes) in a network, what is the number of cable links required for a fully connected mesh and a star topology respectively |
| A. | n(n −1)/2, n −1 |
| B. | n, n −1 |
| C. | n −1, n |
| D. | n −1, n(n −1)/2 |
| Answer» B. n, n −1 | |