MCQOPTIONS
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MCQOPTIONS
This section includes 70 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Networks Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
An IP packet is called a _____________. |
| A. | User datagram |
| B. | Segment |
| C. | Datagram |
| D. | None of the above |
| Answer» D. None of the above | |
| 2. |
A TCP packet is called a _____________. |
| A. | User datagram |
| B. | Segment |
| C. | Datagram |
| D. | None of the above |
| Answer» C. Datagram | |
| 3. |
A UDP packet is called a _____________. |
| A. | User datagram |
| B. | Segment |
| C. | Datagram |
| D. | None of the above |
| Answer» B. Segment | |
| 4. |
An IP packet is encapsulated in a _____________. |
| A. | Data link frame |
| B. | Network layer packet |
| C. | Physical layer packet |
| D. | None of the above |
| Answer» B. Network layer packet | |
| 5. |
A TCP packet is encapsulated in a(n) _____________. |
| A. | Data link frame |
| B. | IP datagram |
| C. | Physical layer packet |
| D. | None of the above |
| Answer» C. Physical layer packet | |
| 6. |
A UDP packet is encapsulated in a(n) _____________. |
| A. | Data link frame |
| B. | IP datagram |
| C. | Physical layer packet |
| D. | None of the above |
| Answer» C. Physical layer packet | |
| 7. |
An ARP packet is encapsulated in a(n) _____________. |
| A. | Data link frame |
| B. | IP datagram |
| C. | Physical layer packet |
| D. | None of the above |
| Answer» B. IP datagram | |
| 8. |
A RARP packet is encapsulated in a(n) _____________. |
| A. | Data link frame |
| B. | IP datagram |
| C. | Physical layer packet |
| D. | None of the above |
| Answer» B. IP datagram | |
| 9. |
An ICMP packet is encapsulated in a(n) _____________. |
| A. | Data link frame |
| B. | IP datagram |
| C. | Physical layer packet |
| D. | None of the above |
| Answer» C. Physical layer packet | |
| 10. |
An IGMP packet is encapsulated in a(n) _____________. |
| A. | Data link frame |
| B. | IP datagram |
| C. | Physical layer packet |
| D. | None of the above |
| Answer» C. Physical layer packet | |
| 11. |
An application-layer packet is encapsulated in a(n) _____________. |
| A. | Data link frame |
| B. | IP datagram |
| C. | TCP or UDP packet |
| D. | None of the above |
| Answer» D. None of the above | |
| 12. |
A class C address starts with the _________bit(s). |
| A. | 0 |
| B. | 10 |
| C. | 110 |
| D. | 1110 |
| Answer» D. 1110 | |
| 13. |
A class A address starts with the _________bit(s). |
| A. | 0 |
| B. | 10 |
| C. | 1110 |
| D. | 1111 |
| Answer» B. 10 | |
| 14. |
A class D address starts with the _________bit(s). |
| A. | 0 |
| B. | 10 |
| C. | 1110 |
| D. | 1111 |
| Answer» D. 1111 | |
| 15. |
What is the class of the address 227.78.19.21? |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 16. |
What is the class of the address 130.8.119.1? |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 17. |
What is the class of the address 10.11.1.21? |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 18. |
What is the class of the address 200.66.10.21? |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 19. |
What is the class of the address 248.22.33.1? |
| A. | A |
| B. | B |
| C. | C |
| D. | E |
| Answer» E. | |
| 20. |
What is the netid of the address 227.78.19.21? |
| A. | 227 |
| B. | 227.78 |
| C. | 227.78.19 |
| D. | None of the above |
| Answer» E. | |
| 21. |
What is the netid of the address 130.8.119.1? |
| A. | 130 |
| B. | 130.8 |
| C. | 130.8.119 |
| D. | None of the above |
| Answer» C. 130.8.119 | |
| 22. |
What is the netid of the address 12.11.1.21? |
| A. | 12 |
| B. | 12.11 |
| C. | 12.11.1 |
| D. | None of the above |
| Answer» B. 12.11 | |
| 23. |
What is the netid of the address 200.66.10.21? |
| A. | 200 |
| B. | 200.66 |
| C. | 200.66.10 |
| D. | None of the above |
| Answer» D. None of the above | |
| 24. |
What is the hostid of the address 248.22.33.1? |
| A. | 22.33.1 |
| B. | 33.1 |
| C. | 1 |
| D. | None of the above |
| Answer» E. | |
| 25. |
What is the hostid of the address 227.78.19.21? |
| A. | 78.19.21 |
| B. | 19.21 |
| C. | 21 |
| D. | None of the above |
| Answer» E. | |
| 26. |
What is the hostid of the address 130.8.119.1? |
| A. | 8.119.1 |
| B. | 119.1 |
| C. | 1 |
| D. | None of the above |
| Answer» C. 1 | |
| 27. |
An IP address is _________ bits. |
| A. | 24 |
| B. | 32 |
| C. | 48 |
| D. | None of the above |
| Answer» C. 48 | |
| 28. |
An IP address is _______ bytes in dotted decimal notation. |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | None of the above |
| Answer» C. 5 | |
| 29. |
A class B address starts with the _________bit(s). |
| A. | 0 |
| B. | 10 |
| C. | 110 |
| D. | 1111 |
| Answer» C. 110 | |
| 30. |
A class E address starts with the _________bit(s). |
| A. | 0 |
| B. | 10 |
| C. | 1110 |
| D. | 1111 |
| Answer» E. | |
| 31. |
What is the hostid of the address 12.11.1.21? |
| A. | 11.1.21 |
| B. | 1.21 |
| C. | 21 |
| D. | None of the above |
| Answer» B. 1.21 | |
| 32. |
What is the hostid of the address 200.66.10.21? |
| A. | 66.10.21 |
| B. | 10.21 |
| C. | 21 |
| D. | None of the above |
| Answer» D. None of the above | |
| 33. |
What is the address of the network to which the host 248.22.33.1 is connected (no subnetting)? |
| A. | 248.22.33.0 |
| B. | 248.22.0.0 |
| C. | 248.0.0.0 |
| D. | None of the above |
| Answer» E. | |
| 34. |
What is the address of the network to which the host 227.78.19.21 is connected (no subnetting)? |
| A. | 227.78.19.0 |
| B. | 227.78.0.0 |
| C. | 227.0.0.0 |
| D. | None of the above |
| Answer» E. | |
| 35. |
What is the address of the network to which the host 130.8.119.1 is connected (no subnetting)? |
| A. | 130.8.119.0 |
| B. | 130.8.0.0 |
| C. | 130.0.0.0 |
| D. | None of the above |
| Answer» C. 130.0.0.0 | |
| 36. |
What is the address of the network to which the host 12.11.1.21 is connected (no subnetting)? |
| A. | 12.11.1.0 |
| B. | 12.11.0.0 |
| C. | 12.0.0.0 |
| D. | None of the above |
| Answer» D. None of the above | |
| 37. |
What is the address of the network to which the host 200.66.10.21 is connected (no subnetting)? |
| A. | 200.66.10.0 |
| B. | 200.66.0.0 |
| C. | 200.0.0.0 |
| D. | None of the above |
| Answer» B. 200.66.0.0 | |
| 38. |
The network address in class C (without subnetting) has _______ zero(s) in decimal notation. |
| A. | 3 |
| B. | 2 |
| C. | 1 |
| D. | None of the above |
| Answer» D. None of the above | |
| 39. |
The network address in class A (without subnetting) has _______ zero(s) in decimal notation. |
| A. | 3 |
| B. | 2 |
| C. | 1 |
| D. | None of the above |
| Answer» B. 2 | |
| 40. |
The network address in class B (without subnetting) has _______ zero(s) in decimal notation. |
| A. | 3 |
| B. | 2 |
| C. | 1 |
| D. | None of the above |
| Answer» C. 1 | |
| 41. |
The network address in Class E (without subnetting) has _______ zero(s) in decimal notation. |
| A. | 3 |
| B. | 2 |
| C. | 1 |
| D. | None of the above |
| Answer» E. | |
| 42. |
The network address in Class D (without subnetting) has _______ zero(s) in decimal notation |
| A. | 3 |
| B. | 2 |
| C. | 1 |
| D. | None of the above |
| Answer» E. | |
| 43. |
The natural mask for class A is _______________. |
| A. | 255.255.255.0. |
| B. | 255.255.0.0 |
| C. | 255.0.0.0 |
| D. | None of the above |
| Answer» D. None of the above | |
| 44. |
The natural mask for class B is _______________. |
| A. | 255.255.255.0. |
| B. | 255.255.0.0 |
| C. | 255.0.0.0 |
| D. | None of the above |
| Answer» C. 255.0.0.0 | |
| 45. |
A source port address in UDP is only _________ byte(s). |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | None of the above |
| Answer» B. 1 | |
| 46. |
A destination port address in UDP is only _________ byte(s). |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | None of the above |
| Answer» B. 1 | |
| 47. |
The length of the TCP header without options is _______ bytes. |
| A. | 40 |
| B. | 20 |
| C. | 60 |
| D. | None of the above |
| Answer» C. 60 | |
| 48. |
A source or destination port address in UDP can define up to _______ ports. |
| A. | 16 |
| B. | 48 |
| C. | 32 |
| D. | None of the above |
| Answer» A. 16 | |
| 49. |
The length of the TCP header is _______ bytes. |
| A. | 20-40 |
| B. | 20-60 |
| C. | 0-60 |
| D. | None of the above |
| Answer» C. 0-60 | |
| 50. |
The length of the TCP options is _______ bytes. |
| A. | 20-40 |
| B. | 0-40 |
| C. | 0-60 |
| D. | None of the above |
| Answer» C. 0-60 | |