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 does a Standard ACL work?
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Checks the source address and then permits or denies the entire protocol suite
Null
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.


2. How are Frame Relay Circuits identified?

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3. What are the major components of OSPF troubleshooting?
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
By DLCI's
A backbone area...Also known as Area 0
Unicast - Multicast - Anycast


4. The no auto-summary command does what?
RIPv2 and EIGRP
Forces protocols to behave as if they were classless
Null
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication


5. What is the default for equal cost paths for load balancing with OSPF?
4
Null
Scalable and fast convergence
Unicast - Multicast - Anycast


6. Describe an Outbound ACL
Determines the cost which is the bandwidth
Aka Subnet mask
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Telnet connectivity - authentication and extended ACLs


7. VTP Client Mode does what?

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8. How is an EUI-64 format interface ID created from a 48-Bit MAC address
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Carry's traffic for multiple VLANS
Updates all DROTHER Routers when a change occurs
TRUE


9. Formula for determining hosts
2^n-2
Unspecified
Dijkstra's Algorithm
...


10. How often does a router send link-state advertisements?
Unspecified
Loopback
Every 30 minutes by default
DROTHER


11. How does an Extended ACL work?
Packet Header
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
EIGRP - OSPF - RIP
Checks the source and destination address then permits or denies specific protocols


12. What are non designated routers called?
Multicast
Designated Router (DR) and a Back-up designated Router (BDR)
DROTHER
Bandwidth & Delay


13. What does DLCI stand for?
Data Link Connection Identifier
Only with Cisco IOS software release 12.3 (2) T
EIGRP - OSPF - RIP
Make sure you are in interface mode - then use this command ip access-group 1 out/in


14. How long is the dead interval
Bandwidth & Delay
4 times the hello interval
Port based
Cisco - ANSI - Q.933A


15. How often does EIGRP send hellow packets?
Every 5 seconds
Every 10 seconds
Checks the source and destination address then permits or denies specific protocols
90


16. With OSPF - there must always be a area......
Forces protocols to behave as if they were classless
0
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.
The inverse of a subnet mask.


17. VTP Server Mode does what?

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18. Can a Router exchange routing information if they are using different Routing Protocols?
To select the best path to the destination
Every 10 Seconds
It combines the advantages of Link-State and Distance vector routing protocols.
No


19. Explain OSPF

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20. What is one to nearest
Telnet connectivity - authentication and extended ACLs
By DLCI's
Anycast
No


21. What do area's do?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
No
Reduce the link-state database and routing table
A combination of Link-state and distance vector


22. Describe a Inbound ACL
TRUE
100Mb/s
Plaintext and MD5
Packets are processed before they are routed to an outbound interface.


23. What is the purpose of LMI
No
It is the signaling standard that maintains connection and statues between the DCE and DTE
Supports both unequal metric load balancing and equal metric balancing.
100Mb/s


24. Spanning-Tree cost of 19
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
100Mb/s
Every 10 Seconds
4


25. How often are periodic updates sent out via RIP
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.
Every 30 Seconds
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
By DLCI's


26. Every ACL will need what?
Adjacency
30-50 seconds
A permit statement
1


27. What type of authentication does EIGRP use?
For line vty 0 4
Not scalable - hard to maintain as the network grows
MD5 and you have to enable it if you want to use it.
DROTHER


28. Example of a Routed Protocol?
Anycast
Checks the source address and then permits or denies the entire protocol suite
IP
15.....16 hops and the interface is down


29. What is ::
Every 10 Seconds
A group of end stations with a common set of requirements - independent of their physical location
Unspecified
It is never useful to send information about a route back in the direction from which the original info came.


30. How many hops are allowed with RIP?
A backbone area...Also known as Area 0
15.....16 hops and the interface is down
Distance Vector
Connects the different areas


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

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32. OSPF routes packets within a single?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Autonomous System
Every 5 seconds
Domain


33. What does a trunk do?

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34. Benefits of OSPF?
No
Scalable and fast convergence
Convergence
Advance Distance Vector


35. Advance Distance Vector or Hybrid uses what?
A backbone area...Also known as Area 0
No
RIPv2 and EIGRP
A combination of Link-state and distance vector


36. What two things need to be done to enable dynamic routing?
Scalable and fast convergence
Every 10 Seconds
Select the routing protocol - then specify the network.
DROTHER


37. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
Unicast - Multicast - Anycast
TRUE
The Root bridge is the bridge with the lowest bridge ID
Dijkstra's Algorithm


38. An OSPF neighbor relationship can also be called what?
Adjacency
A backbone area...Also known as Area 0
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
A permit statement


39. In Link state terminology - What is a link?
No
A link is an interface on a router
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
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.


40. What is an ABR
Unspecified
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Area Border Router
A link is an interface on a router


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

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42. What address is FE80:/10
A combination of Link-state and distance vector
Private: link local
Unspecified
Null


43. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
Null
16
Scalable and fast convergence
MD5 and you have to enable it if you want to use it.


44. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Data Link Connection Identifier
View
4 times the hello interval


45. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
A combination of Link-state and distance vector
Advertised Distance & Feasible distance
The lower MAC address
4


46. Purpose of a Routing Protocol?
Only with Cisco IOS software release 12.3 (2) T
The update only includes info about the route change
Individual or group IP's
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available


47. In frame relay What is Inverse Arp
16
Associating the network address with a local DLCI.
Checks the source address and then permits or denies the entire protocol suite
1


48. Can you delete individual entries in a specific ACL?
Individual or group IP's
Every 5 seconds
A protocol on how to communicate with other routers
Only with Cisco IOS software release 12.3 (2) T


49. Admin distance of EIGRP?
Every 30 Seconds
Multicast
Checks the source address and then permits or denies the entire protocol suite
90


50. Describe features of RIPv2
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Maximizing address efficiency - organization - summarization
Ever 2 seconds
Multicast