Test your basic knowledge |

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. How many hops are allowed with RIP?
A permit statement
20 seconds: 10 missed BPDU's
It combines the advantages of Link-State and Distance vector routing protocols.
15.....16 hops and the interface is down

2. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
Susceptible to routing loops
A layer 3 switch or router
Adjacency
16

3. Spanning-Tree coast of 4
1Gb/s
All backup routes for destinations.
EIGRP - OSPF - RIP
Carry's traffic for multiple VLANS

4. What are two OSPF authentication methods?
Plaintext and MD5
Six equal cost paths
TRUE
2^n

5. What is a VLAN
Unspecified
Area Border Router
Maximizing address efficiency - organization - summarization
A group of end stations with a common set of requirements - independent of their physical location

6. How often are LMI's sent out?
1.) Enter the Routing Manually 2.) Use Dymamic Routing
For line vty 0 4
Every 10 Seconds
20 seconds: 10 missed BPDU's

7. What is passing VLAN traffic to another called?
4 times the hello interval
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Inter-VLAN routing
Null

8. What is Frame Relay?
Automatically
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
90

9. Purpose of a Routing Protocol?
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Telnet connectivity - authentication and extended ACLs
2^n-2
Ever 2 seconds

10. How long is the dead interval
Convergence
100Mb/s
Ever 2 seconds
4 times the hello interval

11. The AS number must what?
1Gb/s
Match on all routers or it will not work
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration

12. What is the purpose of LMI
Match on all routers or it will not work
It is the signaling standard that maintains connection and statues between the DCE and DTE
TRUE
Area Border Router

13. How often does EIGRP send hellow packets?
Individual or group IP's
...
Match on all routers or it will not work
Every 5 seconds

14. Formula for determining Subnets
2^n
Unspecified
100Mb/s
110

15. Describe features of RIPv2
Distance Vector
0
Autonomous System
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication

16. With OSPF - there must always be a area......
Layers 1 & 2
Packets are processed before they are routed to an outbound interface.
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
0

17. Describe an Outbound ACL
The Diffusing Update Algorithm (DUAL)
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Inter-VLAN routing
The update only includes info about the route change

18. What is needed to pass traffic from one VLAN to another?
Checks the source and destination address then permits or denies specific protocols
Advertised Distance & Feasible distance
A layer 3 switch or router
A group of end stations with a common set of requirements - independent of their physical location

19. Can you delete individual entries in a specific ACL?
15.....16 hops and the interface is down
Only with Cisco IOS software release 12.3 (2) T
Adjacency
Loopback

20. What do you need to do if there are discontigous networks with EIGRP?
Reduce the link-state database and routing table
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Disable auto summarization

21. What Layer does Frame Relay operate at?
Domain
Layers 1 & 2
90
By DLCI's

22. How does EIGRP work with regards to Load Balancing
Supports both unequal metric load balancing and equal metric balancing.
Every 10 seconds
...
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available

23. What is one to many?
224.0.0.5
Multicast
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Inter-VLAN routing

24. What type of algorithm does EIGRP use?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Advance Distance Vector
Between areas?
MD5 and you have to enable it if you want to use it.

25. Admin distance of EIGRP?
Ever 2 seconds
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.
Maximizing address efficiency - organization - summarization

26. When do you use Access-Class
The update only includes info about the route change
...
For line vty 0 4
The Root bridge is the bridge with the lowest bridge ID

27. What does partial refer to?
Reduce the link-state database and routing table
The update only includes info about the route change
View
Automatically

28. Formula for determining hosts
1Gb/s
224.0.0.10
IP
2^n-2

29. What type of authentication does EIGRP use?
Determines the cost which is the bandwidth
16
MD5 and you have to enable it if you want to use it.
EIGRP - OSPF - RIP

30. Break down the word Link-State

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31. How often are BPDU's sent?
Inter-VLAN routing
Unspecified
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Ever 2 seconds

32. What are two statements that are true of IPv6 address representation?
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
The information regarding that link. This can include the router's IP address - the type of network - the cost of the link - and if there are any neighboring routers on that link.
Telnet connectivity - authentication and extended ACLs

33. Example of a Routed Protocol?
IP
Designated Router (DR) and a Back-up designated Router (BDR)
EIGRP - OSPF - RIP
100Mb/s

34. An OSPF neighbor relationship can also be called what?
A backbone area...Also known as Area 0
A permit statement
Adjacency
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication

35. What is an Autonomous System?
It is never useful to send information about a route back in the direction from which the original info came.
...
RIPv2 & EIGRP
Distance Vector

36. What are non designated routers called?
To reduce OSPF traffic
Designated Router (DR) and a Back-up designated Router (BDR)
DROTHER
...

37. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
Convergence
Plaintext and MD5
Dijkstra's Algorithm
The lower MAC address

38. Can a Router exchange routing information if they are using different Routing Protocols?
No
110
Every 10 seconds
Checks the source and destination address then permits or denies specific protocols

39. What does EIGRP use to calculate it's metric?
To reduce OSPF traffic
Bandwidth & Delay
10Mb/s
Checks the source and destination address then permits or denies specific protocols

40. What is the Wildcard mask
Ever 2 seconds
The inverse of a subnet mask.
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
It is the signaling standard that maintains connection and statues between the DCE and DTE

41. Wildcard masks filter

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42. What two parameters does EIGRP use to determine the best route?
Advertised Distance & Feasible distance
Select the routing protocol - then specify the network.
IETF
A combination of Link-state and distance vector

43. For a VLAN to span across multiple switches What is required?
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
A trunk
Multicast
10Mb/s

44. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
224.0.0.5
Routes First/ Tests second
View
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

45. Exterior Gateway Protocols are designed for use between
Different Autonomous Systems
...
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Convergence

46. How often does a router send link-state advertisements?
Every 30 minutes by default
2^n-2
Reduce the link-state database and routing table
Area Border Router

47. In regards to ACL's What are the three protocols?
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
224.0.0.10
One ACL per protocol - One ACL per direction - Once ACL per interface

48. Example of a Routing Protocol?
224.0.0.5
Distance Vector
Individual or group IP's
EIGRP - OSPF - RIP

49. Who designed OSPF?
Routes First/ Tests second
IETF
Ever 2 seconds
Between areas?

50. What two things need to be done to enable dynamic routing?
0
Select the routing protocol - then specify the network.
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
100Mb/s