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. With OSPF - there must always be a area......
Port based
0
RIPv2 and EIGRP
The inverse of a subnet mask.

2. Why is this done?
TRUE
To reduce OSPF traffic
RIPv2 & EIGRP
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.

3. What are two statements that are true of IPv6 address representation?
Scalable and fast convergence
MAC based
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Advance Distance Vector

4. How often are OSPF hello packets sent out?
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Individual or group IP's
Distance Vector
Every 10 seconds

5. Routing protocol is what?
30-50 seconds
A trunk
A protocol on how to communicate with other routers
A layer 3 switch or router

6. When do you use Access-Class
Area Border Router
Forces protocols to behave as if they were classless
For line vty 0 4
Associating the network address with a local DLCI.

7. What does EIGRP use to calculate it's metric?
Updates all DROTHER Routers when a change occurs
Bandwidth & Delay
A layer 3 switch or router
Test Firsts/ Routes Second

8. Static VLAN is what?
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Port based
A link is an interface on a router
100Mb/s

9. What type of authentication does EIGRP use?
Scalable and fast convergence
Every 10 Seconds
MD5 and you have to enable it if you want to use it.
View

10. For a VLAN to span across multiple switches What is required?
16
A trunk
Between areas?
0

11. Describe features of RIPv1
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Area Border Router
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Data Link Connection Identifier

12. What do area's do?
It combines the advantages of Link-State and Distance vector routing protocols.
Unspecified
Every 30 Seconds
Reduce the link-state database and routing table

13. What three types of IPv6 address types are there?
...
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
No
Unicast - Multicast - Anycast

14. Summarization of network information usually occurs where?
To select the best path to the destination
Between areas?
Make sure you are in interface mode - then use this command ip access-group 1 out/in
4

15. What two things need to be done to enable dynamic routing?
Anycast
Data Link Connection Identifier
IETF
Select the routing protocol - then specify the network.

16. Rip is capable of load balancing over as many as?
Six equal cost paths
DROTHER
224.0.0.5
Link-State

17. An autonomous system could also be referred to as what?
Domain
4 times the hello interval
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.
Not scalable - hard to maintain as the network grows

18. How often does EIGRP send hellow packets?
Different Autonomous Systems
MD5 and you have to enable it if you want to use it.
Packets are processed before they are routed to an outbound interface.
Every 5 seconds

19. What is one to nearest
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Maximizing address efficiency - organization - summarization
Anycast
Automatically

20. What are the major components of OSPF troubleshooting?
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
IETF
4
Area Border Router

21. By default OSPF uses what type of authentication?
Null
Unspecified
The inverse of a subnet mask.
One ACL per protocol - One ACL per direction - Once ACL per interface

22. Classful Protocols summarize
Autonomous System
Packets are processed before they are routed to an outbound interface.
Automatically
Every 30 Seconds

23. How are Frame Relay Circuits identified?

24. What two classless protocols act classful by default?
The update only includes info about the route change
RIPv2 & EIGRP
Cisco - ANSI - Q.933A
Distance Vector

25. What is Frame Relay?
Domain
Autonomous System
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

26. In regards to troubleshooting OSPF what should you check?
Connects the different areas
Checks the source and destination address then permits or denies specific protocols
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Only with Cisco IOS software release 12.3 (2) T

27. How does Link-State work?
The Diffusing Update Algorithm (DUAL)
Each router builds a map of the network and determines the shortest path to every network.
Aka Subnet mask
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication

28. What is an ABR
Propagation of partial updates that are sent only to those routers that the changes affect.
Area Border Router
0
A combination of Link-state and distance vector

29. What is prefix length?
0
A protocol on how to communicate with other routers
Aka Subnet mask
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL

30. The time delay for a router to match a network change?
IP
Propagation of partial updates that are sent only to those routers that the changes affect.
Convergence
Every 30 Seconds

31. What is the multicast address for EIGRP?
Maximizing address efficiency - organization - summarization
224.0.0.10
Plaintext and MD5
Packets are processed before they are routed to an outbound interface.

32. Break down the word Link-State

33. How do you configure a sub interface?
A trunk
Plaintext and MD5
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
Test Firsts/ Routes Second

34. Admin distance of RIPv2
Six equal cost paths
RIPv2 & EIGRP
120
Checks the source address and then permits or denies the entire protocol suite

35. What is the default load balancing for RIP
A permit statement
4
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
...

36. What does DLCI stand for?
30-50 seconds
Susceptible to routing loops
Data Link Connection Identifier
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.

37. Spanning-Tree coast of 4
...
1Gb/s
DROTHER
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

38. Who designed OSPF?
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
Reduce the link-state database and routing table
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
IETF

39. In regards to ACL's What are the three protocols?
Distance Vector
Individual or group IP's
One ACL per protocol - One ACL per direction - Once ACL per interface
Unicast - Multicast - Anycast

40. Max_age time for BPDU's

41. 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.
224.0.0.10
MD5 and you have to enable it if you want to use it.

42. Wildcard masks filter

43. How does a Standard ACL work?
Each router builds a map of the network and determines the shortest path to every network.
Checks the source address and then permits or denies the entire protocol suite
Every 5 seconds
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.

44. What does the DR do?
Updates all DROTHER Routers when a change occurs
View
Individual or group IP's
TRUE

45. What does partial refer to?
To reduce OSPF traffic
The update only includes info about the route change
It combines the advantages of Link-State and Distance vector routing protocols.
110

46. The advantages of VLSM
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Distance Vector
Maximizing address efficiency - organization - summarization
Domain

47. How is the root bridge determined?
Carry's traffic for multiple VLANS
30-50 seconds
The Root bridge is the bridge with the lowest bridge ID
It is never useful to send information about a route back in the direction from which the original info came.

48. What two parameters does EIGRP use to determine the best route?
Scalable and fast convergence
Layers 1 & 2
Advertised Distance & Feasible distance
For line vty 0 4

49. How many hops are allowed with RIP?
15.....16 hops and the interface is down
The update only includes info about the route change
90
One ACL per protocol - One ACL per direction - Once ACL per interface

50. What is one to many?
By DLCI's
Match on all routers or it will not work
Multicast
100Mb/s