Test your basic knowledge |

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. Benefits of OSPF?
Scalable and fast convergence
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Multicast
Associating the network address with a local DLCI.

2. How often does EIGRP send hellow packets?
4
Every 5 seconds
Forces protocols to behave as if they were classless
Test Firsts/ Routes Second

3. How often are OSPF hello packets sent out?
224.0.0.5
Every 10 seconds
Unicast - Multicast - Anycast
Make sure you are in interface mode - then use this command ip access-group 1 out/in

4. Example of a Routing Protocol?
It combines the advantages of Link-State and Distance vector routing protocols.
Not scalable - hard to maintain as the network grows
EIGRP - OSPF - RIP
Adjacency

5. Problem with static routes
Checks the source address and then permits or denies the entire protocol suite
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Not scalable - hard to maintain as the network grows
Individual or group IP's

6. How do you configure a sub interface?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Unicast - Multicast - Anycast
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
Plaintext and MD5

7. Static VLAN is 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.
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Port based
Checks the source address and then permits or denies the entire protocol suite

8. VTP Server Mode does what?

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9. Admin distance of OSPF?
120
Dijkstra's Algorithm
Determines the cost which is the bandwidth
110

10. In frame relay What is Inverse Arp
Supports both unequal metric load balancing and equal metric balancing.
A layer 3 switch or router
To select the best path to the destination
Associating the network address with a local DLCI.

11. In regards to ACL's What are the three protocols?
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
One ACL per protocol - One ACL per direction - Once ACL per interface
30-50 seconds
It combines the advantages of Link-State and Distance vector routing protocols.

12. Admin distance of a Static Route?
1
Link-State
MD5 and you have to enable it if you want to use it.
It combines the advantages of Link-State and Distance vector routing protocols.

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

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14. Advance Distance Vector or Hybrid uses what?
Unicast - Multicast - Anycast
A link is an interface on a router
A combination of Link-state and distance vector
A permit statement

15. Describe features of RIPv2
Different Autonomous Systems
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
110

16. How do you apply the ACL to an interface
Match on all routers or it will not work
Reduce the link-state database and routing table
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication

17. What three types of IPv6 address types are there?
Unicast - Multicast - Anycast
Bandwidth & Delay
Disable auto summarization
Every 30 Seconds

18. Break down the word Link-State

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19. What type of authentication does EIGRP use?
Port based
Advance Distance Vector
Susceptible to routing loops
MD5 and you have to enable it if you want to use it.

20. What is ::
Unspecified
Private: link local
Dijkstra's Algorithm
90

21. 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
Advertised Distance & Feasible distance
Forces protocols to behave as if they were classless
10Mb/s

22. Spanning-Tree cost of 100
Checks the source address and then permits or denies the entire protocol suite
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
10Mb/s
By DLCI's

23. The AS number must what?
1Gb/s
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
View
Match on all routers or it will not work

24. Why is it important to have a loopback address when using OSPF?
Anycast
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
224.0.0.5
Because a loopback interface is always active and cannot be in a down state like a real interface can.

25. What is one to nearest
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
A backbone area...Also known as Area 0
Anycast
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.

26. What type of algorithm does OSPF & IS-IS use?
Distance Vector
MAC based
Link-State
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.

27. How does a Standard ACL work?
Checks the source address and then permits or denies the entire protocol suite
2^n
By DLCI's
Telnet connectivity - authentication and extended ACLs

28. How are Frame Relay Circuits identified?

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29. How many hops are allowed with RIP?
4 times the hello interval
MD5 and you have to enable it if you want to use it.
15.....16 hops and the interface is down
Test Firsts/ Routes Second

30. What does the back bone router do?
Connects the different areas
10Mb/s
Multicast
EIGRP - OSPF - RIP

31. Describe an Outbound ACL
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
RIPv2 and EIGRP
16

32. Admin distance of a connected Network?
Every 10 Seconds
0
Every 30 minutes by default
224.0.0.10

33. Problem with RIP
Every 10 seconds
2^n-2
Susceptible to routing loops
4 times the hello interval

34. Summarization of network information usually occurs where?
IETF
Between areas?
Supports both unequal metric load balancing and equal metric balancing.
Every 30 minutes by default

35. What is a VLAN
16
Make sure you are in interface mode - then use this command ip access-group 1 out/in
A group of end stations with a common set of requirements - independent of their physical location
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address

36. What is an Autonomous System?
Reduce the link-state database and routing table
Forces protocols to behave as if they were classless
...
No

37. What are two statements that are true of IPv6 address representation?
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Ever 2 seconds
Unspecified
2^n-2

38. Formula for determining hosts
To reduce OSPF traffic
2^n-2
Inter-VLAN routing
It combines the advantages of Link-State and Distance vector routing protocols.

39. With OSPF - there must always be a area......
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Only topology within their respective area.
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
0

40. Nonbackbone - internal routers are aware of what topology
Only topology within their respective area.
110
Null
TRUE

41. Purpose of a Routing Protocol?
15.....16 hops and the interface is down
The Root bridge is the bridge with the lowest bridge ID
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.

42. Formula for determining Subnets
The inverse of a subnet mask.
2^n
MD5 and you have to enable it if you want to use it.
...

43. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
224.0.0.10
View
Determines the cost which is the bandwidth

44. Admin distance of RIPv2
120
Aka Subnet mask
A trunk
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication

45. Why is EIGRP considered a Hybrid routing protocol?
Checks the source and destination address then permits or denies specific protocols
IP
It combines the advantages of Link-State and Distance vector routing protocols.
1

46. By default OSPF uses what type of authentication?
MAC based
It is never useful to send information about a route back in the direction from which the original info came.
Carry's traffic for multiple VLANS
Null

47. A router running EIGRP will store what?
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
It combines the advantages of Link-State and Distance vector routing protocols.
All backup routes for destinations.

48. What are the three LMI standards
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Cisco - ANSI - Q.933A
Disable auto summarization
Loopback

49. What is OSPF multicast address?
224.0.0.5
View
2^n
110

50. What are non designated routers called?
A group of end stations with a common set of requirements - independent of their physical location
Checks the source address and then permits or denies the entire protocol suite
Aka Subnet mask
DROTHER