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CCNA

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. What is ::1
RIPv2 & EIGRP
TRUE
Ever 2 seconds
Loopback

2. Problem with RIP
A backbone area...Also known as Area 0
Susceptible to routing loops
The update only includes info about the route change
Make sure trunking is established. Ensure that dot1q encapsulation is set - and then for each subinterface do this encapsulation dot1Q 2 where 2 is the VLAN associated with that interface

3. Example of a Routing Protocol?
The Root bridge is the bridge with the lowest bridge ID
Cisco - ANSI - Q.933A
Null
EIGRP - OSPF - RIP

4. What does EIGRP use to calculate it's metric?
Bandwidth & Delay
Associating the network address with a local DLCI.
Telnet connectivity - authentication and extended ACLs
Only topology within their respective area.

5. In Link state terminology - What is a link?

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6. What type of algorithm does RIP use?
Associating the network address with a local DLCI.
It combines the advantages of Link-State and Distance vector routing protocols.
Distance Vector
One ACL per protocol - One ACL per direction - Once ACL per interface

7. Who designed OSPF?
Distance Vector
1.) Enter the Routing Manually 2.) Use Dymamic Routing
1
IETF

8. What is the default load balancing for RIP
100Mb/s
4
Aka Subnet mask
A combination of Link-state and distance vector

9. How do you configure a sub interface?
Make sure trunking is established. Ensure that dot1q encapsulation is set - and then for each subinterface do this encapsulation dot1Q 2 where 2 is the VLAN associated with that interface
Six equal cost paths
No
Loopback

10. How often are periodic updates sent out via RIP
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Null
Scalable and fast convergence
Every 30 Seconds

11. How often are BPDU's sent?
Distance Vector
Reduce the link-state database and routing table
By DLCI's
Ever 2 seconds

12. What is one to many?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Multicast
Every 5 seconds
Propagation of partial updates that are sent only to those routers that the changes affect.

13. Explain OSPF

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14. What are subinterfaces?
Reduce the link-state database and routing table
224.0.0.5
15.....16 hops and the interface is down
Multiple virtual interfaces that are associated with one physical interface

15. How does the SPF determine the shortest path?
16
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
A combination of Link-state and distance vector
Determines the cost which is the bandwidth

16. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
TRUE
15.....16 hops and the interface is down
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
R= Rip protocol; You can reach network 192.168.1.0 in two hops. The 120 is the admin distance and the 2 is the metric (hop). and it can be reached via the 10.1.1.2 network.

17. How is the root bridge determined?
The Root bridge is the bridge with the lowest bridge ID
Dijkstra's Algorithm
The inverse of a subnet mask.
2^n

18. Can a Router exchange routing information if they are using different Routing Protocols?
Not scalable - hard to maintain as the network grows
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
No
Private: link local

19. What is passing VLAN traffic to another called?
Inter-VLAN routing
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs

20. What is the Wildcard mask
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
A backbone area...Also known as Area 0
The inverse of a subnet mask.

21. What does the back bone router do?
Bandwidth & Delay
MD5 and you have to enable it if you want to use it.
224.0.0.10
Connects the different areas

22. How does an outbound ACL work?
EIGRP - OSPF - RIP
Propagation of partial updates that are sent only to those routers that the changes affect.
Routes First/ Tests second
A layer 3 switch or router

23. Describe features of RIPv1
Dijkstra's Algorithm
DROTHER
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs

24. Admin distance of EIGRP?
Autonomous System
Advance Distance Vector
Ever 2 seconds
90

25. What does bounded refer to?
2^n-2
120
A combination of Link-state and distance vector
Propagation of partial updates that are sent only to those routers that the changes affect.

26. How does an Extended ACL work?
32768
Multicast
Checks the source and destination address then permits or denies specific protocols
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

27. Benefits of OSPF?
No
2^n-2
Scalable and fast convergence
16

28. Why is this done?
To reduce OSPF traffic
It is never useful to send information about a route back in the direction from which the original info came.
Every 10 seconds
Inter-VLAN routing

29. Why is it important to have a loopback address when using OSPF?
Advance Distance Vector
Not scalable - hard to maintain as the network grows
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Area Border Router

30. How often are LMI's sent out?
A layer 3 switch or router
Dijkstra's Algorithm
Port based
Every 10 Seconds

31. VTP Transparent Mode does what?

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32. Spanning-Tree cost of 100
10Mb/s
Every 30 Seconds
IP
To select the best path to the destination

33. Purpose of a Routing Protocol?
110
Plaintext and MD5
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Checks the source address and then permits or denies the entire protocol suite

34. Admin distance of a connected Network?
Distance Vector
0
Susceptible to routing loops
MD5 and you have to enable it if you want to use it.

35. What address is FE80:/10
Private: link local
RIPv2 and EIGRP
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Plaintext and MD5

36. What distant vector protocols exhibit classless behavior?
RIPv2 and EIGRP
2^n
1Gb/s
Unspecified

37. Admin distance of RIPv2
Between areas?
Packets are processed before they are routed to an outbound interface.
120
Layers 1 & 2

38. How do you configure OSPF
Updates all DROTHER Routers when a change occurs
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
A link is an interface on a router

39. Exterior Gateway Protocols are designed for use between
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
4
Associating the network address with a local DLCI.
Different Autonomous Systems

40. What is the spilt horizon rule?
Between areas?
Scalable and fast convergence
It is never useful to send information about a route back in the direction from which the original info came.
MD5 and you have to enable it if you want to use it.

41. What are non designated routers called?
Checks the source and destination address then permits or denies specific protocols
The Root bridge is the bridge with the lowest bridge ID
Domain
DROTHER

42. In regards to troubleshooting OSPF what should you check?
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Unicast - Multicast - Anycast
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration

43. The advantages of VLSM
110
Maximizing address efficiency - organization - summarization
...
Distance Vector

44. Example of a Routed Protocol?
All backup routes for destinations.
30-50 seconds
Routes First/ Tests second
IP

45. What type of algorithm does EIGRP use?
Advance Distance Vector
A protocol on how to communicate with other routers
90
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.

46. Wildcard masks filter

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47. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
Every 5 seconds
16
R= Rip protocol; You can reach network 192.168.1.0 in two hops. The 120 is the admin distance and the 2 is the metric (hop). and it can be reached via the 10.1.1.2 network.
It is never useful to send information about a route back in the direction from which the original info came.

48. When do you use Access-Class
Between areas?
For line vty 0 4
Match on all routers or it will not work
It is the signaling standard that maintains connection and statues between the DCE and DTE

49. Explain how routing loops occur with RIP?
Autonomous System
RIPv2 & EIGRP
Domain
...

50. What is one to nearest
Anycast
Link-State
One ACL per protocol - One ACL per direction - Once ACL per interface
16