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 is an EUI-64 format interface ID created from a 48-Bit MAC address
Every 10 Seconds
Multicast
16
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address


2. How does Link-State work?
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Data Link Connection Identifier
100Mb/s
Each router builds a map of the network and determines the shortest path to every network.


3. Why is this done?
Dijkstra's Algorithm
To reduce OSPF traffic
A backbone area...Also known as Area 0
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.


4. Why is EIGRP considered a Hybrid routing protocol?
Anycast
It combines the advantages of Link-State and Distance vector routing protocols.
Susceptible to routing loops
DROTHER


5. VTP Transparent Mode does what?

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6. Static VLAN is what?
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
20 seconds: 10 missed BPDU's
Port based
Advertised Distance & Feasible distance


7. In Link state terminology - What is a link?
Port based
Between areas?
Not scalable - hard to maintain as the network grows
A link is an interface on a router


8. For a VLAN to span across multiple switches What is required?
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Maximizing address efficiency - organization - summarization
Between areas?
A trunk


9. What is the default load balancing for RIP
Aka Subnet mask
4
Propagation of partial updates that are sent only to those routers that the changes affect.
Match on all routers or it will not work


10. What is the dead interval
Autonomous System
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.


11. The time delay for a router to match a network change?
Null
Convergence
IP
Updates all DROTHER Routers when a change occurs


12. How often are OSPF hello packets sent out?
View
1Gb/s
Anycast
Every 10 seconds


13. What is an ABR
TRUE
Area Border Router
16
224.0.0.5


14. When do you use Access-Class
Anycast
For line vty 0 4
Null
Aka Subnet mask


15. Break down the word Link-State

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16. Benefits of OSPF?
1
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Scalable and fast convergence


17. With OSPF - what must be defined?
A permit statement
Data Link Connection Identifier
1
A backbone area...Also known as Area 0


18. With ACL's where does the router extract information
16
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Packet Header
Only topology within their respective area.


19. Who designed OSPF?
0
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
IETF
Carry's traffic for multiple VLANS


20. What is a VLAN
Domain
Scalable and fast convergence
Associating the network address with a local DLCI.
A group of end stations with a common set of requirements - independent of their physical location


21. VTP Client Mode does what?

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22. What is Frame Relay?
Unicast - Multicast - Anycast
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Every 30 minutes by default


23. How are Frame Relay Circuits identified?

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24. What are subinterfaces?
15.....16 hops and the interface is down
Cisco - ANSI - Q.933A
2^n
Multiple virtual interfaces that are associated with one physical interface


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

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26. What type of algorithm does EIGRP use?
Anycast
Advance Distance Vector
90
Associating the network address with a local DLCI.


27. Formula for determining Subnets
Unspecified
Ever 2 seconds
2^n
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.


28. What are the major components of OSPF troubleshooting?
Determines the cost which is the bandwidth
Ever 2 seconds
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.


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

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30. Explain how routing loops occur with RIP?
Every 5 seconds
...
4
Between areas?


31. Nonbackbone - internal routers are aware of what topology
120
It is the signaling standard that maintains connection and statues between the DCE and DTE
Only topology within their respective area.
Adjacency


32. How does a Standard ACL work?
Connects the different areas
Checks the source address and then permits or denies the entire protocol suite
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
A link is an interface on a router


33. What is OSPF multicast address?
Test Firsts/ Routes Second
224.0.0.5
1
DROTHER


34. What address is FE80:/10
224.0.0.10
Dijkstra's Algorithm
Propagation of partial updates that are sent only to those routers that the changes affect.
Private: link local


35. The advantages of VLSM
A combination of Link-state and distance vector
Maximizing address efficiency - organization - summarization
It is the signaling standard that maintains connection and statues between the DCE and DTE
A backbone area...Also known as Area 0


36. How often does a router send link-state advertisements?
Determines the cost which is the bandwidth
TRUE
A layer 3 switch or router
Every 30 minutes by default


37. Max_age time for BPDU's

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38. VTP Server Mode does what?

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39. An OSPF neighbor relationship can also be called what?
Advertised Distance & Feasible distance
30-50 seconds
Adjacency
All backup routes for destinations.


40. Admin distance of OSPF?
110
Associating the network address with a local DLCI.
2^n
IP


41. What is ::1
Loopback
4 times the hello interval
To reduce OSPF traffic
Null


42. In frame relay What is Inverse Arp
Associating the network address with a local DLCI.
Individual or group IP's
View
By DLCI's


43. What is the purpose of LMI
For line vty 0 4
It is the signaling standard that maintains connection and statues between the DCE and DTE
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
120


44. What is one to many?
A link is an interface on a router
Maximizing address efficiency - organization - summarization
Multicast
Domain


45. What is the default Bridge priority?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
32768
MAC based
Six equal cost paths


46. Routers are used for what?
To select the best path to the destination
Only topology within their respective area.
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
RIPv2 and EIGRP


47. What are the two ways routers can learn about the destination information?
Private: link local
Carry's traffic for multiple VLANS
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Data Link Connection Identifier


48. What two parameters does EIGRP use to determine the best route?
Aka Subnet mask
Reduce the link-state database and routing table
Advertised Distance & Feasible distance
Every 30 minutes by default


49. What does DLCI stand for?
10Mb/s
A protocol on how to communicate with other routers
Not scalable - hard to maintain as the network grows
Data Link Connection Identifier


50. Example of a Routing Protocol?
Cisco - ANSI - Q.933A
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
To reduce OSPF traffic
EIGRP - OSPF - RIP