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. What is the dead interval
0
Plaintext and MD5
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Different Autonomous Systems

2. How is an EUI-64 format interface ID created from a 48-Bit MAC address
MAC based
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
110
Every 10 Seconds

3. Purpose of a Routing Protocol?
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
MD5 and you have to enable it if you want to use it.
Each router builds a map of the network and determines the shortest path to every network.
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available

4. The advantages of VLSM
Only with Cisco IOS software release 12.3 (2) T
Maximizing address efficiency - organization - summarization
110
Advance Distance Vector

5. What is needed to pass traffic from one VLAN to another?
Telnet connectivity - authentication and extended ACLs
A layer 3 switch or router
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Checks the source address and then permits or denies the entire protocol suite

6. Routers are used for what?
100Mb/s
To select the best path to the destination
Bandwidth & Delay
RIPv2 & EIGRP

7. What is one to many?
All backup routes for destinations.
30-50 seconds
Multicast
Multiple virtual interfaces that are associated with one physical interface

8. Break down the word Link-State

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9. What address is FE80:/10
Ever 2 seconds
Private: link local
Link-State
4

10. Describe features of RIPv2
It combines the advantages of Link-State and Distance vector routing protocols.
Routes First/ Tests second
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication

11. In regards to ACL's What are the three protocols?
Data Link Connection Identifier
The lower MAC address
One ACL per protocol - One ACL per direction - Once ACL per interface
Advance Distance Vector

12. What do area's do?
A backbone area...Also known as Area 0
224.0.0.10
Reduce the link-state database and routing table
Adjacency

13. What type of authentication does EIGRP use?
Designated Router (DR) and a Back-up designated Router (BDR)
MD5 and you have to enable it if you want to use it.
Different Autonomous Systems
Disable auto summarization

14. Wildcard masks filter

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15. What is an ABR
Area Border Router
It is the signaling standard that maintains connection and statues between the DCE and DTE
20 seconds: 10 missed BPDU's
View

16. For an adjacency to occur what do the routers have to agree on?
10Mb/s
MAC based
Domain
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.

17. How do you apply the ACL to an interface
A link is an interface on a router
All backup routes for destinations.
Make sure you are in interface mode - then use this command ip access-group 1 out/in
A backbone area...Also known as Area 0

18. Admin distance of a Static Route?
Every 10 seconds
0
1
It combines the advantages of Link-State and Distance vector routing protocols.

19. What type of algorithm does RIP use?
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Match on all routers or it will not work
Connects the different areas
Distance Vector

20. Summarization of network information usually occurs where?
MD5 and you have to enable it if you want to use it.
A link is an interface on a router
Between areas?
Null

21. Dynamic ACL's are dependent on what?
16
EIGRP - OSPF - RIP
Susceptible to routing loops
Telnet connectivity - authentication and extended ACLs

22. Every ACL will need what?
Susceptible to routing loops
A permit statement
MD5 and you have to enable it if you want to use it.
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

23. How often are BPDU's sent?
By DLCI's
Select the routing protocol - then specify the network.
A link is an interface on a router
Ever 2 seconds

24. With OSPF - what must be defined?
Maximizing address efficiency - organization - summarization
A backbone area...Also known as Area 0
Layers 1 & 2
The update only includes info about the route change

25. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
RIPv2 and EIGRP
32768
16

26. What is ::1
20 seconds: 10 missed BPDU's
Loopback
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication

27. Nonbackbone - internal routers are aware of what topology
DROTHER
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Unspecified
Only topology within their respective area.

28. What three types of IPv6 address types are there?
Packets are processed before they are routed to an outbound interface.
Match on all routers or it will not work
Unicast - Multicast - Anycast
A trunk

29. What is the Wildcard mask
...
The inverse of a subnet mask.
0
Unicast - Multicast - Anycast

30. Why is EIGRP considered a Hybrid routing protocol?
Advance Distance Vector
Port based
Connects the different areas
It combines the advantages of Link-State and Distance vector routing protocols.

31. For a VLAN to span across multiple switches What is required?
32768
A trunk
20 seconds: 10 missed BPDU's
Area Border Router

32. Benefits of OSPF?
Advance Distance Vector
Every 30 Seconds
Every 5 seconds
Scalable and fast convergence

33. What are the two ways routers can learn about the destination information?
A backbone area...Also known as Area 0
RIPv2 & EIGRP
1.) Enter the Routing Manually 2.) Use Dymamic Routing
120

34. With ACL's where does the router extract information
4 times the hello interval
Every 10 Seconds
Packet Header
IETF

35. In regards to troubleshooting OSPF what should you check?
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Each router builds a map of the network and determines the shortest path to every network.
Maximizing address efficiency - organization - summarization
Every 30 Seconds

36. Describe an Outbound ACL
Because a loopback interface is always active and cannot be in a down state like a real interface can.
IETF
Multicast
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL

37. What does a trunk do?

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38. Normal time for STP convergence
...
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
30-50 seconds
Propagation of partial updates that are sent only to those routers that the changes affect.

39. How is the root bridge determined?
TRUE
Susceptible to routing loops
The Root bridge is the bridge with the lowest bridge ID
Anycast

40. What is the multicast address for EIGRP?
TRUE
Checks the source and destination address then permits or denies specific protocols
Aka Subnet mask
224.0.0.10

41. What is the default for equal cost paths for load balancing with OSPF?
4
Checks the source address and then permits or denies the entire protocol suite
...
A link is an interface on a router

42. What is passing VLAN traffic to another called?
Inter-VLAN routing
Packets are processed before they are routed to an outbound interface.
30-50 seconds
A trunk

43. What is a VLAN
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
120
2^n-2
A group of end stations with a common set of requirements - independent of their physical location

44. Why is it important to have a loopback address when using OSPF?
Data Link Connection Identifier
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
110
Because a loopback interface is always active and cannot be in a down state like a real interface can.

45. What two things need to be done to enable dynamic routing?
A group of end stations with a common set of requirements - independent of their physical location
Select the routing protocol - then specify the network.
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.
Match on all routers or it will not work

46. An OSPF neighbor relationship can also be called what?
Bandwidth & Delay
Carry's traffic for multiple VLANS
Only with Cisco IOS software release 12.3 (2) T
Adjacency

47. What type of algorithm does OSPF & IS-IS use?
Link-State
Only topology within their respective area.
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Layers 1 & 2

48. By default - EIGRP will perform automatic summarization on classful boundaries. True or False
TRUE
Select the routing protocol - then specify the network.
Only with Cisco IOS software release 12.3 (2) T
DROTHER

49. VTP Transparent Mode does what?

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50. Spanning-Tree coast of 4
16
Layers 1 & 2
30-50 seconds
1Gb/s