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 do area's do?
Reduce the link-state database and routing table
MD5 and you have to enable it if you want to use it.
It is the signaling standard that maintains connection and statues between the DCE and DTE
Packet Header


2. What is one to nearest
1.) Enter the Routing Manually 2.) Use Dymamic Routing
The lower MAC address
Anycast
Aka Subnet mask


3. Routing protocol is what?
Area Border Router
IP
Carry's traffic for multiple VLANS
A protocol on how to communicate with other routers


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

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5. How does the SPF determine the shortest path?
Determines the cost which is the bandwidth
Dijkstra's Algorithm
Each router builds a map of the network and determines the shortest path to every network.
If int status is UP/UP..Check to make sure OSPF is enabled on the interface


6. What does partial refer to?
A group of end stations with a common set of requirements - independent of their physical location
Data Link Connection Identifier
120
The update only includes info about the route change


7. Dynamic ACL's are dependent on what?
Telnet connectivity - authentication and extended ACLs
EIGRP - OSPF - RIP
Connects the different areas
Aka Subnet mask


8. Max_age time for BPDU's

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9. What is the dead interval
The Root bridge is the bridge with the lowest bridge ID
EIGRP - OSPF - RIP
Unicast - Multicast - Anycast
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.


10. A router running EIGRP will store what?
It is the signaling standard that maintains connection and statues between the DCE and DTE
EIGRP - OSPF - RIP
All backup routes for destinations.
Loopback


11. How often are LMI's sent out?
Anycast
1Gb/s
Forces protocols to behave as if they were classless
Every 10 Seconds


12. Spanning-Tree cost of 100
Connects the different areas
Each router builds a map of the network and determines the shortest path to every network.
10Mb/s
16


13. How does an Extended ACL work?
Ever 2 seconds
Aka Subnet mask
Checks the source and destination address then permits or denies specific protocols
Advertised Distance & Feasible distance


14. Nonbackbone - internal routers are aware of what topology
Only topology within their respective area.
...
Associating the network address with a local DLCI.
RIPv2 and EIGRP


15. 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
Select the routing protocol - then specify the network.
90


16. What are two statements that are true of IPv6 address representation?
Only with Cisco IOS software release 12.3 (2) T
16
90
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.


17. How often does EIGRP send hellow packets?
Between areas?
4 times the hello interval
Every 5 seconds
Checks the source address and then permits or denies the entire protocol suite


18. What does DLCI stand for?
Area Border Router
Data Link Connection Identifier
Susceptible to routing loops
Select the routing protocol - then specify the network.


19. 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
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Between areas?
Unicast - Multicast - Anycast


20. What is prefix length?
Aka Subnet mask
0
Multicast
Multiple virtual interfaces that are associated with one physical interface


21. What is an Autonomous System?
Multiple virtual interfaces that are associated with one physical interface
...
Scalable and fast convergence
The Diffusing Update Algorithm (DUAL)


22. What distant vector protocols exhibit classless behavior?
Every 10 Seconds
RIPv2 and EIGRP
Routes First/ Tests second
Plaintext and MD5


23. Explain OSPF

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24. Wildcard masks filter

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25. What Layer does Frame Relay operate at?
Layers 1 & 2
Advance Distance Vector
90
Determines the cost which is the bandwidth


26. Formula for determining hosts
Anycast
2^n-2
120
Only with Cisco IOS software release 12.3 (2) T


27. What is needed to pass traffic from one VLAN to another?
A layer 3 switch or router
120
Convergence
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.


28. Admin distance of OSPF?
110
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Test Firsts/ Routes Second
Autonomous System


29. What two parameters does EIGRP use to determine the best route?
Advertised Distance & Feasible distance
Autonomous System
Routes First/ Tests second
Every 30 minutes by default


30. In Link state terminology - What is a link?
EIGRP - OSPF - RIP
Not scalable - hard to maintain as the network grows
Multicast
A link is an interface on a router


31. OSPF will elect a what?
Scalable and fast convergence
IP
Designated Router (DR) and a Back-up designated Router (BDR)
Maximizing address efficiency - organization - summarization


32. What does the back bone router do?
0
Advance Distance Vector
It is the signaling standard that maintains connection and statues between the DCE and DTE
Connects the different areas


33. Summarization of network information usually occurs where?
The lower MAC address
Autonomous System
Between areas?
1Gb/s


34. What are non designated routers called?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
DROTHER
224.0.0.5
Six equal cost paths


35. Can a Router exchange routing information if they are using different Routing Protocols?
No
0
100Mb/s
Propagation of partial updates that are sent only to those routers that the changes affect.


36. How often are BPDU's sent?
Multiple virtual interfaces that are associated with one physical interface
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Unspecified
Ever 2 seconds


37. VTP Server Mode does what?

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38. Spanning-Tree coast of 4
1Gb/s
MD5 and you have to enable it if you want to use it.
Reduce the link-state database and routing table
Checks the source and destination address then permits or denies specific protocols


39. Benefits of OSPF?
A protocol on how to communicate with other routers
Advance Distance Vector
Select the routing protocol - then specify the network.
Scalable and fast convergence


40. What is the Wildcard mask
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
The inverse of a subnet mask.
2^n-2


41. Dynamic VLAN is what?
A combination of Link-state and distance vector
2^n-2
Autonomous System
MAC based


42. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
Associating the network address with a local DLCI.
The lower MAC address
Multiple virtual interfaces that are associated with one physical interface
Disable auto summarization


43. How does an outbound ACL work?
Loopback
Routes First/ Tests second
20 seconds: 10 missed BPDU's
...


44. Admin distance of EIGRP?
90
110
Every 30 minutes by default
Autonomous System


45. The time delay for a router to match a network change?
Domain
Convergence
224.0.0.5
Each router builds a map of the network and determines the shortest path to every network.


46. In regards to troubleshooting OSPF what should you check?
To reduce OSPF traffic
Packet Header
Each router builds a map of the network and determines the shortest path to every network.
If int status is UP/UP..Check to make sure OSPF is enabled on the interface


47. By default OSPF uses what type of authentication?
90
Multicast
It is the signaling standard that maintains connection and statues between the DCE and DTE
Null


48. What is one to many?
32768
For line vty 0 4
Multicast
4


49. Every ACL will need what?
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.
A permit statement
The update only includes info about the route change
Bandwidth & Delay


50. What is the default load balancing for RIP
...
Only with Cisco IOS software release 12.3 (2) T
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
4