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CCNA RS

Back to Exams Page.

1. Which of the following OSI reference model layers do not have a direct mapping on the TCP/IP model?
 
 
 
 

Question 1 of 50

2. What are the three functions of the network layer in the OSI reference model?
 
 
 
 

Question 2 of 50

3. Which protocols are present at the Transport layer?
 
 
 
 

Question 3 of 50

4. In the TCP/IP model, what is the encapsulated data at the transport layer called?
 
 
 
 

Question 4 of 50

5. What is the correct order for the ethernet header and trailer fields?
 
 
 
 

Question 5 of 50

6. What is the purpose of the Frame Check Sequence field in an Ethernet frame?
 
 
 
 

Question 6 of 50

7. Which type of address indicates that traffic will be sent to a subset of all devices on the Ethernet LAN?
 
 
 
 

Question 7 of 50

8. What is the minimum size of the data field of an Ethernet frame?
 
 
 
 

Question 8 of 50

9. Assuming the connections between the router, the switch, and the host are Ethernet, what are the types of Ethernet cables needed to connect these three devices?

 

cabling 
 
 
 
 

Question 9 of 50

10. Of the tables below, which shows the correct order of the seven layers of the OSI model? 

OSI 
 
 
 
 

Question 10 of 50

11. What is the correct order of the standard HDLC packet fields?
 
 
 
 

Question 11 of 50

12. Which is the HDLC header added by the Cisco proprietary implementation of HDLC?
 
 
 
 

Question 12 of 50

13. Which one(s) of these following examples are Internet Access Links?
 
 
 
 

Question 13 of 50

14. What does Ethernet over MPLS(EoMPLS) provide?
 
 
 
 

Question 14 of 50

15. Assuming the below packet is a Cisco HDLC packet, what field is missing from the packet?

 

hdlc_cisco
 
 
 
 

Question 15 of 50

16. What is the purpose of Address Resolution Protocol?
 
 
 
 

Question 16 of 50

17. What is the size of an IPv4 address?
 
 
 
 

Question 17 of 50

18. Which of the following IP addresses falls into a class B network?
 
 
 
 

Question 18 of 50

19. What is a valid network numbers range for class C?
 
 
 
 

Question 19 of 50

20. What is the purpose of IP subnetting?
 
 
 
 

Question 20 of 50

21. Which of the following tables contain the correct valid network numbers for Class A, B, and C?

 

class 
 
 
 
 

Question 21 of 50

22. What is the two-step logic that a host uses to send a packet?
 
 
 
 

Question 22 of 50

23. What does a router do with a packet whose destination data link address does not belong to the router?
 
 
 
 

Question 23 of 50

24. What are two of the steps a router takes when it receives a packet whose destination data link address is the router?
 
 
 
 

Question 24 of 50

25. What are two of the goals of a routing protocol?
 
 
 
 

Question 25 of 50

26. What are two of the goals of a routing protocol?
 
 
 
 

Question 26 of 50

27. Which two statements are true with regards to ARP Request and ARP Reply?
 
 
 
 

Question 27 of 50

28. Which of the following is not a function of the TCP/IP Transport layer?
 
 
 
 

Question 28 of 50

29. The message created by TCP that begins with the TCP header, followed by any application data, is called?
 
 
 
 

Question 29 of 50

30. Which of the following is not a component of a socket?
 
 
 
 

Question 30 of 50

31. What is the transport protocol and the port number of a www application?
 
 
 
 

Question 31 of 50

32. Which of the following tables contain the correct port number/protocol/application combinations?

 

app_ports 
 
 
 
 

Question 32 of 50

33. What is the correct order of the packets required to establish a TCP connection?
 
 
 
 

Question 33 of 50

34. Looking at the diagram below, what should be the last packet exchanged before the TCP connection can be established? 

tcp_establishment 
 
 
 
 

Question 34 of 50

35. The primary function of a switch is to forward frames. What is the parameter a switch uses to decide where to forward a frame?
 
 
 
 

Question 35 of 50

36. How does a switch populate its MAC address table?
 
 
 
 

Question 36 of 50

37. What kind of frames are flooded by a switch?
 
 
 
 

Question 37 of 50

38. What does a switch do with a frame whose destination MAC address is not in the MAC address table?
 
 
 
 

Question 38 of 50

39. Considering the diagram and the MAC address table of the switch below, on which interface will the switch forward a frame that is coming from PC2 and is destined for MAC address 3333.3333.3333? 

forward_known 
 
 
 
 

Question 39 of 50

40. Considering the diagram and the MAC address table of the switch below, on which interface will the switch forward a frame that is coming from PC1 and is destined for MAC address 4444.4444.4444?

 

forward_unknown 
 
 
 
 

Question 40 of 50

41. The type of forwarding that occurs when a switch starts to forward the frame after the first 64 bytes of the frame is called?
 
 
 
 

Question 41 of 50

42. What is the disadvantage of using the cut-through forwarding method?
 
 
 
 

Question 42 of 50

43. What is the purpose of Spanning Tree Protocol?
 
 
 
 

Question 43 of 50

44. In what way is a switch different from a hub?
 
 
 
 

Question 44 of 50

45. What device will increase the number of the broadcast domains?
 
 
 
 

Question 45 of 50

46. Which of the following doesn’t create multiple collision domains?
 
 
 
 

Question 46 of 50

47. How can a switch be made to create multiple broadcast domains?
 
 
 
 

Question 47 of 50

48. Which two of the following statements are true?
 
 
 
 

Question 48 of 50

49. How many broadcast domains should be present in the below diagram?

 

broadcast_domains 
 
 
 
 

Question 49 of 50

50. In campus design terminology, what is the name of Switch 3, Switch 4, and Switch 5?

 

terminology 
 
 
 
 

Question 50 of 50

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