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. How does an outbound ACL work?
Data Link Connection Identifier
0
Routes First/ Tests second
Not scalable - hard to maintain as the network grows

2. What are non designated routers called?
2^n-2
Test Firsts/ Routes Second
DROTHER
IP

3. How often are BPDU's sent?
Reduce the link-state database and routing table
Every 30 Seconds
1Gb/s
Ever 2 seconds

4. In frame relay What is Inverse Arp
A permit statement
Link-State
Susceptible to routing loops
Associating the network address with a local DLCI.

5. Dynamic VLAN is what?
MAC based
Packet Header
IETF
0

6. What is the multicast address for EIGRP?
Test Firsts/ Routes Second
Checks the source address and then permits or denies the entire protocol suite
224.0.0.10
Determines the cost which is the bandwidth

7. What does partial refer to?
1Gb/s
...
A group of end stations with a common set of requirements - independent of their physical location
The update only includes info about the route change

8. Nonbackbone - internal routers are aware of what topology
Updates all DROTHER Routers when a change occurs
The Root bridge is the bridge with the lowest bridge ID
No
Only topology within their respective area.

9. How often does EIGRP send hellow packets?
MD5 and you have to enable it if you want to use it.
To select the best path to the destination
Every 5 seconds
Only topology within their respective area.

10. How does a Standard ACL work?
Checks the source address and then permits or denies the entire protocol suite
Disable auto summarization
100Mb/s
Make sure you are in interface mode - then use this command ip access-group 1 out/in

11. What are two OSPF authentication methods?
For line vty 0 4
32768
Plaintext and MD5
Susceptible to routing loops

12. Can you delete individual entries in a specific ACL?
A permit statement
Area Border Router
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Only with Cisco IOS software release 12.3 (2) T

13. 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
Maximizing address efficiency - organization - summarization
MD5 and you have to enable it if you want to use it.
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.

14. For an adjacency to occur what do the routers have to agree on?
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Supports both unequal metric load balancing and equal metric balancing.
DROTHER

15. Admin distance of a Static Route?
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Bandwidth & Delay
DROTHER
1

16. What does a trunk do?

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17. VTP Server Mode does what?

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18. What is the default Bridge priority?
Designated Router (DR) and a Back-up designated Router (BDR)
32768
MD5 and you have to enable it if you want to use it.
A backbone area...Also known as Area 0

19. What does EIGRP use to calculate it's metric?
The lower MAC address
Bandwidth & Delay
TRUE
20 seconds: 10 missed BPDU's

20. What is the default for equal cost paths for load balancing with OSPF?
4
Null
Match on all routers or it will not work
15.....16 hops and the interface is down

21. Routers are used for what?
To select the best path to the destination
Area Border Router
32768
2^n

22. Wildcard masks filter

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23. What is passing VLAN traffic to another called?
Inter-VLAN routing
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Updates all DROTHER Routers when a change occurs
Make sure you are in interface mode - then use this command ip access-group 1 out/in

24. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
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.
16
Reduce the link-state database and routing table

25. How do you configure a sub interface?
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
It is the signaling standard that maintains connection and statues between the DCE and DTE
By DLCI's
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.

26. Formula for determining hosts
2^n-2
Every 10 seconds
Null
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.

27. When do you use Access-Class
Susceptible to routing loops
For line vty 0 4
Six equal cost paths
Updates all DROTHER Routers when a change occurs

28. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
The inverse of a subnet mask.
View
Ever 2 seconds
Not scalable - hard to maintain as the network grows

29. Rip is capable of load balancing over as many as?
Six equal cost paths
16
Distance Vector
Reduce the link-state database and routing table

30. How often are OSPF hello packets sent out?
Every 10 seconds
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Maximizing address efficiency - organization - summarization
To select the best path to the destination

31. With OSPF - there must always be a area......
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
0
20 seconds: 10 missed BPDU's
100Mb/s

32. What is an ABR
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Determines the cost which is the bandwidth
Area Border Router
Null

33. Formula for determining Subnets
A group of end stations with a common set of requirements - independent of their physical location
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
2^n
By DLCI's

34. What is a VLAN
Every 10 seconds
A group of end stations with a common set of requirements - independent of their physical location
100Mb/s
4 times the hello interval

35. OSPF will elect a what?
4 times the hello interval
The lower MAC address
2^n
Designated Router (DR) and a Back-up designated Router (BDR)

36. Summarization of network information usually occurs where?
The update only includes info about the route change
16
Match on all routers or it will not work
Between areas?

37. What are the three LMI standards
Cisco - ANSI - Q.933A
20 seconds: 10 missed BPDU's
Susceptible to routing loops
Reduce the link-state database and routing table

38. Spanning-Tree cost of 100
100Mb/s
The update only includes info about the route change
224.0.0.5
10Mb/s

39. How does Link-State work?
Updates all DROTHER Routers when a change occurs
Each router builds a map of the network and determines the shortest path to every network.
Convergence
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration

40. What is Frame Relay?
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Checks the source and destination address then permits or denies specific protocols

41. How do you configure OSPF
Not scalable - hard to maintain as the network grows
110
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
1.) Enter the Routing Manually 2.) Use Dymamic Routing

42. Purpose of a Routing Protocol?
Match on all routers or it will not work
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
15.....16 hops and the interface is down
Null

43. Problem with RIP
Susceptible to routing loops
DROTHER
Adjacency
Updates all DROTHER Routers when a change occurs

44. What does the DR do?
Bandwidth & Delay
Updates all DROTHER Routers when a change occurs
4
Packet Header

45. The advantages of VLSM
Maximizing address efficiency - organization - summarization
TRUE
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
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication

46. How does EIGRP work with regards to Load Balancing
MAC based
A protocol on how to communicate with other routers
The inverse of a subnet mask.
Supports both unequal metric load balancing and equal metric balancing.

47. VTP Transparent Mode does what?

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48. The AS number must what?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Match on all routers or it will not work
4 times the hello interval
A group of end stations with a common set of requirements - independent of their physical location

49. Describe a Inbound ACL
2^n-2
Packets are processed before they are routed to an outbound interface.
Supports both unequal metric load balancing and equal metric balancing.
110

50. Can a Router exchange routing information if they are using different Routing Protocols?
All backup routes for destinations.
No
Match on all routers or it will not work
32768