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CCNA

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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. Summarization of network information usually occurs where?
Match on all routers or it will not work
Automatically
Unicast - Multicast - Anycast
Between areas?

2. What is the default for equal cost paths for load balancing with OSPF?
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.
4
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
120

3. Why is EIGRP considered a Hybrid routing protocol?
The update only includes info about the route change
It combines the advantages of Link-State and Distance vector routing protocols.
Connects the different areas
224.0.0.5

4. With OSPF - what must be defined?
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Area Border Router
A backbone area...Also known as Area 0
A group of end stations with a common set of requirements - independent of their physical location

5. What is one to nearest
Unicast - Multicast - Anycast
Aka Subnet mask
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Anycast

6. What are two statements that are true of IPv6 address representation?
RIPv2 and EIGRP
Automatically
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
0

7. What do area's do?
It is never useful to send information about a route back in the direction from which the original info came.
Reduce the link-state database and routing table
2^n-2
224.0.0.10

8. How does an outbound ACL work?
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
4
Routes First/ Tests second
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.

9. What is ::
Unspecified
Designated Router (DR) and a Back-up designated Router (BDR)
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
No

10. What does partial refer to?
TRUE
View
The update only includes info about the route change
Convergence

11. Describe features of RIPv2
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Adjacency
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.

12. Wildcard masks filter

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13. What is Frame Relay?
Disable auto summarization
Null
Supports both unequal metric load balancing and equal metric balancing.
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

14. What three types of IPv6 address types are there?
Select the routing protocol - then specify the network.
Unicast - Multicast - Anycast
TRUE
Associating the network address with a local DLCI.

15. What is needed to pass traffic from one VLAN to another?
Determines the cost which is the bandwidth
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
A layer 3 switch or router

16. What does the back bone router do?
2^n-2
Every 10 seconds
Connects the different areas
Multicast

17. Explain how routing loops occur with RIP?
Plaintext and MD5
1.) Enter the Routing Manually 2.) Use Dymamic Routing
...
Autonomous System

18. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
TRUE
Forces protocols to behave as if they were classless
Test Firsts/ Routes Second

19. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
TRUE
100Mb/s
16
Area Border Router

20. How long is the dead interval
4
DROTHER
4 times the hello interval
Reduce the link-state database and routing table

21. What are the major components of OSPF troubleshooting?
Checks the source address and then permits or denies the entire protocol suite
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Advance Distance Vector
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication

22. Dynamic VLAN is what?
4
The Root bridge is the bridge with the lowest bridge ID
Every 10 Seconds
MAC based

23. What is an ABR
MAC based
Area Border Router
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
It is never useful to send information about a route back in the direction from which the original info came.

24. Static VLAN is what?
0
Port based
Ever 2 seconds
A backbone area...Also known as Area 0

25. What is the default load balancing for RIP
For line vty 0 4
4
1Gb/s
224.0.0.10

26. What type of algorithm does RIP use?
Unicast - Multicast - Anycast
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Distance Vector
Inter-VLAN routing

27. Routing protocol is what?
It is the signaling standard that maintains connection and statues between the DCE and DTE
10Mb/s
A link is an interface on a router
A protocol on how to communicate with other routers

28. What are non designated routers called?
Between areas?
DROTHER
Match on all routers or it will not work
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication

29. In Link state terminology - What is a link?
Private: link local
A link is an interface on a router
Null
Anycast

30. How many hops are allowed with RIP?
15.....16 hops and the interface is down
Determines the cost which is the bandwidth
A combination of Link-state and distance vector
Associating the network address with a local DLCI.

31. Spanning-Tree cost of 100
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
10Mb/s
Plaintext and MD5
Distance Vector

32. Formula for determining hosts
2^n-2
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
RIPv2 & EIGRP
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

33. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
The lower MAC address
Every 30 minutes by default
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Maximizing address efficiency - organization - summarization

34. What are the two ways routers can learn about the destination information?
Adjacency
Connects the different areas
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Port based

35. By default OSPF uses what type of authentication?
Null
2^n-2
15.....16 hops and the interface is down
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address

36. How does an Extended ACL work?
To select the best path to the destination
Checks the source and destination address then permits or denies specific protocols
Updates all DROTHER Routers when a change occurs
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

37. VTP Server Mode does what?

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38. VTP Transparent Mode does what?

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39. What type of algorithm does EIGRP use?
A combination of Link-state and distance vector
DROTHER
Advance Distance Vector
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.

40. What is the Wildcard mask
IP
Aka Subnet mask
The inverse of a subnet mask.
Convergence

41. What is a VLAN
Match on all routers or it will not work
Every 10 Seconds
Checks the source and destination address then permits or denies specific protocols
A group of end stations with a common set of requirements - independent of their physical location

42. How often does a router send link-state advertisements?
110
Every 30 minutes by default
Private: link local
For line vty 0 4

43. What do you need to do if there are discontigous networks with EIGRP?
Disable auto summarization
120
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Only topology within their respective area.

44. Dynamic ACL's are dependent on what?
Telnet connectivity - authentication and extended ACLs
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Bandwidth & Delay
Routes First/ Tests second

45. What is prefix length?
MD5 and you have to enable it if you want to use it.
Aka Subnet mask
It combines the advantages of Link-State and Distance vector routing protocols.
Convergence

46. Describe features of RIPv1
Checks the source and destination address then permits or denies specific protocols
4 times the hello interval
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Not scalable - hard to maintain as the network grows

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

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48. How often are periodic updates sent out via RIP
Every 30 Seconds
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
100Mb/s
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication

49. For an adjacency to occur what do the routers have to agree on?
Susceptible to routing loops
Match on all routers or it will not work
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
32768

50. OSPF routes packets within a single?
120
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Autonomous System
Anycast

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