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. Spanning-Tree coast of 4
1Gb/s
4
Multicast
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0

2. What is the default Bridge priority?
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Multicast
Susceptible to routing loops
32768

3. Formula for determining hosts
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Automatically
A backbone area...Also known as Area 0
2^n-2

4. When placing ACL's in the Network...Do what?

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5. What algorithm does EIGRP use?
The Diffusing Update Algorithm (DUAL)
DROTHER
A backbone area...Also known as Area 0
Anycast

6. In frame relay What is Inverse Arp
Area Border Router
Dijkstra's Algorithm
Associating the network address with a local DLCI.
To reduce OSPF traffic

7. Classful Protocols summarize
Automatically
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Autonomous System
Unspecified

8. What is OSPF multicast address?
No
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
A backbone area...Also known as Area 0
224.0.0.5

9. What two classless protocols act classful by default?
RIPv2 & EIGRP
Area Border Router
120
EIGRP - OSPF - RIP

10. Rip is capable of load balancing over as many as?
Every 5 seconds
Different Autonomous Systems
Checks the source and destination address then permits or denies specific protocols
Six equal cost paths

11. How often are LMI's sent out?
Designated Router (DR) and a Back-up designated Router (BDR)
Test Firsts/ Routes Second
Every 10 Seconds
Individual or group IP's

12. Problem with static routes
It is never useful to send information about a route back in the direction from which the original info came.
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Not scalable - hard to maintain as the network grows

13. 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.
Carry's traffic for multiple VLANS
Unicast - Multicast - Anycast
Each router builds a map of the network and determines the shortest path to every network.

14. VTP Server Mode does what?

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15. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
Every 30 minutes by default
Associating the network address with a local DLCI.
Every 30 Seconds
16

16. What does EIGRP use to calculate it's metric?
Bandwidth & Delay
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Private: link local
The inverse of a subnet mask.

17. Summarization of network information usually occurs where?
Between areas?
TRUE
Telnet connectivity - authentication and extended ACLs
To select the best path to the destination

18. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
The lower MAC address
0
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
...

19. An OSPF neighbor relationship can also be called what?
20 seconds: 10 missed BPDU's
1
Adjacency
100Mb/s

20. What is the default for equal cost paths for load balancing with OSPF?
15.....16 hops and the interface is down
MAC based
Select the routing protocol - then specify the network.
4

21. Can a Router exchange routing information if they are using different Routing Protocols?
Individual or group IP's
Telnet connectivity - authentication and extended ACLs
No
Supports both unequal metric load balancing and equal metric balancing.

22. What is the Shortest Path First algorithm also called?

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23. What is ::
Each router builds a map of the network and determines the shortest path to every network.
To select the best path to the destination
Unspecified
Routes First/ Tests second

24. What type of authentication does EIGRP use?
Every 10 Seconds
Every 5 seconds
Test Firsts/ Routes Second
MD5 and you have to enable it if you want to use it.

25. Admin distance of RIPv2
Every 5 seconds
120
Telnet connectivity - authentication and extended ACLs
2^n

26. Benefits of OSPF?
Cisco - ANSI - Q.933A
Distance Vector
Scalable and fast convergence
Domain

27. What do you need to do if there are discontigous networks with EIGRP?
A permit statement
224.0.0.10
RIPv2 and EIGRP
Disable auto summarization

28. What is the purpose of LMI
A protocol on how to communicate with other routers
It is the signaling standard that maintains connection and statues between the DCE and DTE
Convergence
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

29. What is an ABR
0
4 times the hello interval
No
Area Border Router

30. Problem with RIP
Susceptible to routing loops
Maximizing address efficiency - organization - summarization
32768
Every 30 Seconds

31. The no auto-summary command does what?
Plaintext and MD5
Each router builds a map of the network and determines the shortest path to every network.
Forces protocols to behave as if they were classless
RIPv2 and EIGRP

32. What address is FE80:/10
It is the signaling standard that maintains connection and statues between the DCE and DTE
Autonomous System
Unspecified
Private: link local

33. How do you apply the ACL to an interface
Make sure you are in interface mode - then use this command ip access-group 1 out/in
4 times the hello interval
A trunk
Propagation of partial updates that are sent only to those routers that the changes affect.

34. What is one to many?
Private: link local
Between areas?
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.
Multicast

35. Dynamic VLAN is what?
Different Autonomous Systems
15.....16 hops and the interface is down
MAC based
1.) Enter the Routing Manually 2.) Use Dymamic Routing

36. How is the root bridge determined?
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Multiple virtual interfaces that are associated with one physical interface
The Root bridge is the bridge with the lowest bridge ID
Packet Header

37. How long is the dead interval
Every 10 Seconds
Layers 1 & 2
Domain
4 times the hello interval

38. Admin distance of a Static Route?
16
TRUE
1
Between areas?

39. In regards to troubleshooting OSPF what should you check?
Multicast
Six equal cost paths
Forces protocols to behave as if they were classless
If int status is UP/UP..Check to make sure OSPF is enabled on the interface

40. Routers are used for what?
To select the best path to the destination
The Diffusing Update Algorithm (DUAL)
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
15.....16 hops and the interface is down

41. Describe an Outbound ACL
A combination of Link-state and distance vector
Packets are processed before they are routed to an outbound interface.
...
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL

42. What does this mean? R 192.168.1.0/24 [120/2] via 10.1.1.2
Select the routing protocol - then specify the network.
Packet Header
Determines the cost which is the bandwidth
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.

43. When do you use Access-Class
For line vty 0 4
2^n-2
RIPv2 and EIGRP
Inter-VLAN routing

44. The time delay for a router to match a network change?
Convergence
A backbone area...Also known as Area 0
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
15.....16 hops and the interface is down

45. Admin distance of EIGRP?
Port based
224.0.0.10
...
90

46. Can you delete individual entries in a specific ACL?
Only with Cisco IOS software release 12.3 (2) T
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Reduce the link-state database and routing table
4

47. Exterior Gateway Protocols are designed for use between
Only topology within their respective area.
Different Autonomous Systems
Reduce the link-state database and routing table
Every 10 seconds

48. What is ::1
Loopback
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
MAC based
RIPv2 & EIGRP

49. What is an Autonomous System?
Designated Router (DR) and a Back-up designated Router (BDR)
...
Every 30 Seconds
Packet Header

50. What does the back bone router do?
Updates all DROTHER Routers when a change occurs
Susceptible to routing loops
Connects the different areas
DROTHER