CCNA R&S(book)

1. What are the benefits of microsegmentation?

Question 1 of 50

2. What is the term for the mechanism through which the sender and receiver agree on how much data can be sent before an acknowledgement is sent from the receiver?

Question 2 of 50

3. At what layers in an OSI model is a firewall used?

Question 3 of 50

4. Which debug command produces this output?



Question 4 of 50

5. What are the possible destination Ethernet addresses?

Question 5 of 50

6. What are the switching methods?

Question 6 of 50

7. You connect two hosts in a new brand switch, and they can reach each other. How is this possible without any configuration?

Question 7 of 50

8. Which statements are true about Layer 2 links on a switch?

Question 8 of 50

9. You try to add a new VLAN on the switch, and this error is returned: "%VTP VLAN configuration not allowed when device is in CLIENT mode." What is the reason for this error?

Question 9 of 50

10. Which of the following are address types supported in IPv6?

Question 10 of 50

11. What is the equivalent of the OSPFv2 designated routers address in IPv6 addressing?

Question 11 of 50

12. Considering the below topology (f0/0 is used on both routers) and the output collected from R2, what seems to be the problem?




Question 12 of 50

13. What is the administrative distance for OSPF protocol?

Question 13 of 50

14. Which of the following are distance vector problems?

Question 14 of 50

15. Which of the following are benefits of using CEF?

Question 15 of 50

16. How can we assign a router its router-id?

Question 16 of 50

17. Which of the following are differences in OSPFv3 from OSPF?

Question 17 of 50

18. What are some of the drawbacks of using OSPF protocol?

Question 18 of 50

19. What is the source IP address of a DHCP Request message?

Question 19 of 50

20. You would like to deny traffic from the subnet. What will you enter into the ACL?

Question 20 of 50

21. Which of the following are ACL rules that one should be aware of in order to avoid configuration and troubleshooting issues?

Question 21 of 50

22. Which of the following are advantages of having the capability to assign sequence numbers to ACL entries?

Question 22 of 50

23. PC_1 is trying to connect to PC_2. What will be the content of the NAT table on R1?



Question 23 of 50

24. What debug command is needed to see the NAT translations taking place on a router?

Question 24 of 50

25. Which of the following statements are correct based on the below output?




Question 25 of 50

26. What port security command needs to be used so that a MAC address learned by the switch is added in the running configuration?

Question 26 of 50

27. Which of the following sets of commands will allow the switch to recover from an err-disable state caused by storm-control after 30 seconds?




Question 27 of 50

28. Considering the below output, what will be the output returned by the switch when the command "switchport port-security" is added under Gi0/0?




Question 28 of 50

29. How long does it take for a switch to move from Listening state to Learning state in 802.1D?

Question 29 of 50

30. What is the correct order of the decision-making process to determine which port will be the root port?




Question 30 of 50

31. What are the timers that monitor and age BPDUs?

Question 31 of 50

32. Which of the following are configuration requirements for the component ports for LACP and PAgP?

Question 32 of 50

33. Which of the following are not LACP modes?

Question 33 of 50

34. Considering the below output, what was the configuration command used to set the hash algorithm for port-channels?




Question 34 of 50

35. Which of the following are required steps to enable SSH on a router?

Question 35 of 50

36. What is the IP address to which all the OSPF routers send their updates to DR and BDR routers?

Question 36 of 50

37. On a multi-access segment, the DR and BDR were elected. Later, you add a newer router, with more memory and a faster CPU. You would like to make this router the DR on the segment. How can you trigger the DR/BDR process?

Question 37 of 50

38. A router has three Serial interfaces, three GigabitEthernet interfaces, and one Loopback interface configured for OSPF. How many LSAs is the router sending?

Question 38 of 50

39. Which of the following are advantages of grouping OSPF interfaces into logical areas?

Question 39 of 50

40. Which types of LSAs are allowed in stub areas?

Question 40 of 50

41. Based on the below output, what is the OSPF state of R3?



Question 41 of 50

42. Based on the output below, from where did R3 get its router-id?




Question 42 of 50

43. Which of the following are parameters used by EIGRP to determine the best path?

Question 43 of 50

44. What is the EIGRP protocol number?

Question 44 of 50

45. Considering the output below, what metric will the route have in the router's routing table?




Question 45 of 50

46. Considering the output below taken from R3 and considering that R2 is configured in a similar way, what will be the administrative distance of the route in the R3 routing table?




Question 46 of 50

47. Which of the following is not a First Hop Redundancy Protocol?

Question 47 of 50

48. What LCP option is described by this statement: "Monitors dropped data and avoids frame looping"?

Question 48 of 50

49. What are the Local Management Interface types?

Question 49 of 50

50. Which of the following are the Frame Relay subinterfaces types?

Question 50 of 50


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