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 does the DR do?
Individual or group IP's
Updates all DROTHER Routers when a change occurs
Layers 1 & 2
0

2. What distant vector protocols exhibit classless behavior?
IP
Susceptible to routing loops
RIPv2 and EIGRP
Individual or group IP's

3. What is passing VLAN traffic to another called?
Multicast
224.0.0.10
Inter-VLAN routing
Maximizing address efficiency - organization - summarization

4. For a VLAN to span across multiple switches What is required?
2^n
The update only includes info about the route change
A trunk
Anycast

5. What is one to many?
DROTHER
No
Unspecified
Multicast

6. Nonbackbone - internal routers are aware of what topology
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
20 seconds: 10 missed BPDU's
Only topology within their respective area.
A protocol on how to communicate with other routers

7. With OSPF - there must always be a area......
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
0
4
Disable auto summarization

8. In Link state terminology - What is a link?
Advance Distance Vector
A link is an interface on a router
Cisco - ANSI - Q.933A
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

9. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
Every 30 Seconds
TRUE
90
RIPv2 and EIGRP

10. What is a VLAN
15.....16 hops and the interface is down
1
EIGRP - OSPF - RIP
A group of end stations with a common set of requirements - independent of their physical location

11. Normal time for STP convergence
View
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
30-50 seconds
A permit statement

12. Formula for determining hosts
2^n-2
RIPv2 & EIGRP
TRUE
It is never useful to send information about a route back in the direction from which the original info came.

13. What address is FE80:/10
RIPv2 & EIGRP
Advance Distance Vector
1Gb/s
Private: link local

14. How does an Extended ACL work?
120
Checks the source and destination address then permits or denies specific protocols
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
A permit statement

15. Can a Router exchange routing information if they are using different Routing Protocols?
No
The inverse of a subnet mask.
A trunk
0

16. Problem with static routes
Packet Header
Not scalable - hard to maintain as the network grows
Distance Vector
Only with Cisco IOS software release 12.3 (2) T

17. What are the major components of OSPF troubleshooting?
RIPv2 and EIGRP
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Link-State
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication

18. How does an outbound ACL work?
Maximizing address efficiency - organization - summarization
Bandwidth & Delay
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Routes First/ Tests second

19. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
Scalable and fast convergence
16
Propagation of partial updates that are sent only to those routers that the changes affect.
To select the best path to the destination

20. The no auto-summary command does what?
Associating the network address with a local DLCI.
To reduce OSPF traffic
Plaintext and MD5
Forces protocols to behave as if they were classless

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

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22. In regards to ACL's What are the three protocols?
Layers 1 & 2
One ACL per protocol - One ACL per direction - Once ACL per interface
Only topology within their respective area.
Only with Cisco IOS software release 12.3 (2) T

23. How does the SPF determine the shortest path?
4
Determines the cost which is the bandwidth
All backup routes for destinations.
Supports both unequal metric load balancing and equal metric balancing.

24. Explain how routing loops occur with RIP?
MD5 and you have to enable it if you want to use it.
...
Between areas?
2^n

25. What is an Autonomous System?
Maximizing address efficiency - organization - summarization
Supports both unequal metric load balancing and equal metric balancing.
By DLCI's
...

26. Classful Protocols summarize
Automatically
Checks the source address and then permits or denies the entire protocol suite
Area Border Router
Disable auto summarization

27. What does the back bone router do?
224.0.0.10
Cisco - ANSI - Q.933A
IETF
Connects the different areas

28. What three types of IPv6 address types are there?
Individual or group IP's
RIPv2 and EIGRP
Unicast - Multicast - Anycast
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available

29. What does bounded refer to?
Propagation of partial updates that are sent only to those routers that the changes affect.
Associating the network address with a local DLCI.
Maximizing address efficiency - organization - summarization
100Mb/s

30. Max_age time for BPDU's

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31. How many hops are allowed with RIP?
Disable auto summarization
15.....16 hops and the interface is down
Distance Vector
Associating the network address with a local DLCI.

32. Spanning-Tree cost of 19
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Connects the different areas
Area Border Router
100Mb/s

33. A router running EIGRP will store what?
DROTHER
Domain
Maximizing address efficiency - organization - summarization
All backup routes for destinations.

34. The advantages of VLSM
RIPv2 and EIGRP
Null
Maximizing address efficiency - organization - summarization
30-50 seconds

35. Rip is capable of load balancing over as many as?
Match on all routers or it will not work
It is the signaling standard that maintains connection and statues between the DCE and DTE
Automatically
Six equal cost paths

36. In frame relay What is Inverse Arp
EIGRP - OSPF - RIP
110
Associating the network address with a local DLCI.
By DLCI's

37. How is the root bridge determined?
It combines the advantages of Link-State and Distance vector routing protocols.
Designated Router (DR) and a Back-up designated Router (BDR)
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
The Root bridge is the bridge with the lowest bridge ID

38. What type of algorithm does OSPF & IS-IS use?
The inverse of a subnet mask.
Link-State
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
2^n-2

39. How do you configure OSPF
Autonomous System
A backbone area...Also known as Area 0
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Bandwidth & Delay

40. Break down the word Link-State

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

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42. How does a Standard ACL work?
Individual or group IP's
4
It combines the advantages of Link-State and Distance vector routing protocols.
Checks the source address and then permits or denies the entire protocol suite

43. How does Link-State work?
0
A trunk
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
Each router builds a map of the network and determines the shortest path to every network.

44. Routers are used for what?
Not scalable - hard to maintain as the network grows
To select the best path to the destination
Unicast - Multicast - Anycast
Make sure you are in interface mode - then use this command ip access-group 1 out/in

45. Dynamic VLAN is what?
MAC based
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
20 seconds: 10 missed BPDU's
RIPv2 & EIGRP

46. Describe an Outbound ACL
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Checks the source address and then permits or denies the entire protocol suite
15.....16 hops and the interface is down
RIPv2 and EIGRP

47. How often does a router send link-state advertisements?
Every 30 minutes by default
A permit statement
The inverse of a subnet mask.
Unspecified

48. Benefits of OSPF?
The inverse of a subnet mask.
Scalable and fast convergence
It combines the advantages of Link-State and Distance vector routing protocols.
0

49. How often are periodic updates sent out via RIP
The update only includes info about the route change
Every 30 Seconds
0
IP

50. What are the three LMI standards
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Cisco - ANSI - Q.933A
2^n-2
Routes First/ Tests second