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 distant vector protocols exhibit classless behavior?
TRUE
A permit statement
RIPv2 and EIGRP
MD5 and you have to enable it if you want to use it.


2. What is ::1
It is the signaling standard that maintains connection and statues between the DCE and DTE
Anycast
Not scalable - hard to maintain as the network grows
Loopback


3. What is the default Bridge priority?
Adjacency
32768
Carry's traffic for multiple VLANS
Six equal cost paths


4. Example of a Routed Protocol?
IP
Six equal cost paths
All backup routes for destinations.
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration


5. What is an Autonomous System?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
...
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Advance Distance Vector


6. What is Frame Relay?
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
It combines the advantages of Link-State and Distance vector routing protocols.
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Dijkstra's Algorithm


7. What Layer does Frame Relay operate at?
It combines the advantages of Link-State and Distance vector routing protocols.
Disable auto summarization
All backup routes for destinations.
Layers 1 & 2


8. How does an Extended ACL work?
Six equal cost paths
Data Link Connection Identifier
A combination of Link-state and distance vector
Checks the source and destination address then permits or denies specific protocols


9. How often are periodic updates sent out via RIP
Every 30 Seconds
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
100Mb/s
Unicast - Multicast - Anycast


10. How often are BPDU's sent?
Autonomous System
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Null
Ever 2 seconds


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

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12. What are two statements that are true of IPv6 address representation?
Every 30 minutes by default
Link-State
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Maximizing address efficiency - organization - summarization


13. What do area's do?
Dijkstra's Algorithm
Reduce the link-state database and routing table
Disable auto summarization
20 seconds: 10 missed BPDU's


14. VTP Transparent Mode does what?

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15. In regards to troubleshooting OSPF what should you check?
A link is an interface on a router
32768
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
...


16. Spanning-Tree cost of 19
100Mb/s
Area Border Router
20 seconds: 10 missed BPDU's
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.


17. Why is EIGRP considered a Hybrid routing protocol?
It combines the advantages of Link-State and Distance vector routing protocols.
Updates all DROTHER Routers when a change occurs
A link is an interface on a router
Different Autonomous Systems


18. By default OSPF uses what type of authentication?
30-50 seconds
Null
Multicast
MAC based


19. What does this mean? R 192.168.1.0/24 [120/2] via 10.1.1.2
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.
Carry's traffic for multiple VLANS
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
TRUE


20. OSPF routes packets within a single?
1Gb/s
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.
Autonomous System
Packets are processed before they are routed to an outbound interface.


21. VTP Client Mode does what?

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22. With OSPF - there must always be a area......
Aka Subnet mask
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
0
Checks the source address and then permits or denies the entire protocol suite


23. Describe features of RIPv1
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Only with Cisco IOS software release 12.3 (2) T
Aka Subnet mask
1Gb/s


24. Spanning-Tree coast of 4
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
MAC based
It is the signaling standard that maintains connection and statues between the DCE and DTE
1Gb/s


25. When do you use Access-Class
Packets are processed before they are routed to an outbound interface.
Select the routing protocol - then specify the network.
Every 30 Seconds
For line vty 0 4


26. The AS number must what?
Match on all routers or it will not work
It is never useful to send information about a route back in the direction from which the original info came.
4
Convergence


27. Wildcard masks filter

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28. An OSPF neighbor relationship can also be called what?
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
1
15.....16 hops and the interface is down
Adjacency


29. VTP Server Mode does what?

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30. What three types of IPv6 address types are there?
The inverse of a subnet mask.
Unicast - Multicast - Anycast
All backup routes for destinations.
Loopback


31. Can you delete individual entries in a specific ACL?
The Diffusing Update Algorithm (DUAL)
110
Only with Cisco IOS software release 12.3 (2) T
Loopback


32. Who designed OSPF?
0
Adjacency
Loopback
IETF


33. Nonbackbone - internal routers are aware of what topology
The lower MAC address
Only topology within their respective area.
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Select the routing protocol - then specify the network.


34. What address is FE80:/10
224.0.0.10
The lower MAC address
4 times the hello interval
Private: link local


35. For an adjacency to occur what do the routers have to agree on?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Each router builds a map of the network and determines the shortest path to every network.
Associating the network address with a local DLCI.


36. What is prefix length?
RIPv2 & EIGRP
0
2^n
Aka Subnet mask


37. Static VLAN is what?
Port based
90
Private: link local
DROTHER


38. What does EIGRP use to calculate it's metric?
Loopback
Routes First/ Tests second
Bandwidth & Delay
Every 10 seconds


39. What are the two ways routers can learn about the destination information?
A group of end stations with a common set of requirements - independent of their physical location
Advance Distance Vector
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Advertised Distance & Feasible distance


40. What is the multicast address for EIGRP?
Packet Header
2^n
224.0.0.10
0


41. Can a Router exchange routing information if they are using different Routing Protocols?
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Routes First/ Tests second
Inter-VLAN routing
No


42. Admin distance of RIPv2
Only topology within their respective area.
120
A combination of Link-state and distance vector
1Gb/s


43. What does the DR do?
Updates all DROTHER Routers when a change occurs
Six equal cost paths
0
Individual or group IP's


44. The time delay for a router to match a network change?
Convergence
EIGRP - OSPF - RIP
Bandwidth & Delay
Different Autonomous Systems


45. Explain OSPF

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46. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
Select the routing protocol - then specify the network.
Updates all DROTHER Routers when a change occurs
View
Telnet connectivity - authentication and extended ACLs


47. What is the purpose of LMI
90
4 times the hello interval
Designated Router (DR) and a Back-up designated Router (BDR)
It is the signaling standard that maintains connection and statues between the DCE and DTE


48. How does inbound ACL work?
Test Firsts/ Routes Second
...
A permit statement
Anycast


49. What type of algorithm does RIP use?
Checks the source address and then permits or denies the entire protocol suite
DROTHER
Distance Vector
Between areas?


50. Purpose of a Routing Protocol?
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Loopback
4 times the hello interval
Advertised Distance & Feasible distance