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 often are BPDU's sent?
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.
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Ever 2 seconds
TRUE

2. What is the dead interval
Telnet connectivity - authentication and extended ACLs
Convergence
TRUE
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.

3. What are the two ways routers can learn about the destination information?
It combines the advantages of Link-State and Distance vector routing protocols.
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Convergence

4. Explain OSPF

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

5. What is ::
Multicast
Unspecified
Unicast - Multicast - Anycast
Anycast

6. How often does EIGRP send hellow packets?
Each router builds a map of the network and determines the shortest path to every network.
4
Every 5 seconds
A backbone area...Also known as Area 0

7. How do you configure OSPF
Anycast
2^n
Packet Header
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0

8. Example of a Routing Protocol?
Plaintext and MD5
Only topology within their respective area.
Area Border Router
EIGRP - OSPF - RIP

9. Spanning-Tree cost of 100
Multiple virtual interfaces that are associated with one physical interface
Aka Subnet mask
Domain
10Mb/s

10. What is an ABR
All backup routes for destinations.
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Area Border Router
A backbone area...Also known as Area 0

11. When do you use Access-Class
A protocol on how to communicate with other routers
32768
For line vty 0 4
Because a loopback interface is always active and cannot be in a down state like a real interface can.

12. Routing protocol is what?
2^n
It is never useful to send information about a route back in the direction from which the original info came.
A protocol on how to communicate with other routers
15.....16 hops and the interface is down

13. Break down the word Link-State

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

14. The no auto-summary command does what?
32768
Scalable and fast convergence
Between areas?
Forces protocols to behave as if they were classless

15. What are two OSPF authentication methods?
Plaintext and MD5
Connects the different areas
IETF
Updates all DROTHER Routers when a change occurs

16. What is the spilt horizon rule?
It is never useful to send information about a route back in the direction from which the original info came.
0
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
...

17. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
1Gb/s
View
Select the routing protocol - then specify the network.
Disable auto summarization

18. Admin distance of a connected Network?
0
110
The lower MAC address
Checks the source and destination address then permits or denies specific protocols

19. A router running EIGRP will store what?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
All backup routes for destinations.
Updates all DROTHER Routers when a change occurs
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers

20. What does DLCI stand for?
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
0
IETF
Data Link Connection Identifier

21. How is the root bridge determined?
1
The Root bridge is the bridge with the lowest bridge ID
Individual or group IP's
It combines the advantages of Link-State and Distance vector routing protocols.

22. With ACL's where does the router extract information
A protocol on how to communicate with other routers
Packet Header
Telnet connectivity - authentication and extended ACLs
0

23. Spanning-Tree coast of 4
Determines the cost which is the bandwidth
1Gb/s
Connects the different areas
RIPv2 & EIGRP

24. Why is it important to have a loopback address when using OSPF?
Maximizing address efficiency - organization - summarization
4 times the hello interval
It is never useful to send information about a route back in the direction from which the original info came.
Because a loopback interface is always active and cannot be in a down state like a real interface can.

25. Who designed OSPF?
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
20 seconds: 10 missed BPDU's
IETF
The inverse of a subnet mask.

26. What is one to many?
15.....16 hops and the interface is down
Multicast
It is the signaling standard that maintains connection and statues between the DCE and DTE
A trunk

27. What are the major components of OSPF troubleshooting?
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Every 5 seconds
Unicast - Multicast - Anycast
Convergence

28. The AS number must what?
The Diffusing Update Algorithm (DUAL)
The lower MAC address
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Match on all routers or it will not work

29. The advantages of VLSM
Loopback
Every 10 Seconds
Every 10 seconds
Maximizing address efficiency - organization - summarization

30. With OSPF - there must always be a area......
Only topology within their respective area.
0
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

31. An autonomous system could also be referred to as what?
4 times the hello interval
120
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
Domain

32. What are non designated routers called?
DROTHER
Plaintext and MD5
Only with Cisco IOS software release 12.3 (2) T
Null

33. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
30-50 seconds
Multiple virtual interfaces that are associated with one physical interface
16
4 times the hello interval

34. What type of algorithm does OSPF & IS-IS use?
Link-State
A permit statement
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
0

35. Describe features of RIPv1
Each router builds a map of the network and determines the shortest path to every network.
Aka Subnet mask
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication

36. An OSPF neighbor relationship can also be called what?
Propagation of partial updates that are sent only to those routers that the changes affect.
Adjacency
Private: link local
20 seconds: 10 missed BPDU's

37. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
A layer 3 switch or router
Private: link local
Checks the source address and then permits or denies the entire protocol suite
TRUE

38. What do you need to do if there are discontigous networks with EIGRP?
Each router builds a map of the network and determines the shortest path to every network.
Adjacency
To reduce OSPF traffic
Disable auto summarization

39. What is the default for equal cost paths for load balancing with OSPF?
EIGRP - OSPF - RIP
4
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
224.0.0.10

40. Every ACL will need what?
RIPv2 & EIGRP
A permit statement
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Ever 2 seconds

41. What is the Wildcard mask
The Root bridge is the bridge with the lowest bridge ID
EIGRP - OSPF - RIP
100Mb/s
The inverse of a subnet mask.

42. What do area's do?
Reduce the link-state database and routing table
4
MD5 and you have to enable it if you want to use it.
To select the best path to the destination

43. How does an outbound ACL work?
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.
Routes First/ Tests second
IP
10Mb/s

44. Admin distance of RIPv2
120
Forces protocols to behave as if they were classless
Dijkstra's Algorithm
RIPv2 and EIGRP

45. Exterior Gateway Protocols are designed for use between
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.
Different Autonomous Systems
1.) Enter the Routing Manually 2.) Use Dymamic Routing
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

47. What is prefix length?
20 seconds: 10 missed BPDU's
Susceptible to routing loops
30-50 seconds
Aka Subnet mask

48. In regards to ACL's What are the three protocols?
One ACL per protocol - One ACL per direction - Once ACL per interface
0
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
110

49. What are subinterfaces?
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Multiple virtual interfaces that are associated with one physical interface
0
4

50. What is the multicast address for EIGRP?
Ever 2 seconds
It combines the advantages of Link-State and Distance vector routing protocols.
224.0.0.10
Reduce the link-state database and routing table