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?
90
10Mb/s
Link-State
Scalable and fast convergence

2. What distant vector protocols exhibit classless behavior?
RIPv2 and EIGRP
Checks the source address and then permits or denies the entire protocol suite
Every 10 Seconds
1Gb/s

3. By default OSPF uses what type of authentication?
Every 5 seconds
Null
Advance Distance Vector
Every 30 Seconds

4. What does EIGRP use to calculate it's metric?
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Determines the cost which is the bandwidth
Every 5 seconds
Bandwidth & Delay

5. What algorithm does EIGRP use?
Domain
Supports both unequal metric load balancing and equal metric balancing.
The Diffusing Update Algorithm (DUAL)
2^n-2

6. Example of a Routing Protocol?
100Mb/s
Checks the source and destination address then permits or denies specific protocols
10Mb/s
EIGRP - OSPF - RIP

7. Admin distance of a connected Network?
0
Packets are processed before they are routed to an outbound interface.
Area Border Router
Scalable and fast convergence

8. Admin distance of a Static Route?
1
The inverse of a subnet mask.
Designated Router (DR) and a Back-up designated Router (BDR)
One ACL per protocol - One ACL per direction - Once ACL per interface

9. What are the three LMI standards
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Cisco - ANSI - Q.933A
The lower MAC address
Plaintext and MD5

10. In regards to ACL's What are the three protocols?
One ACL per protocol - One ACL per direction - Once ACL per interface
Inter-VLAN routing
MAC based
Every 10 seconds

11. Every ACL will need what?
IP
120
A permit statement
Connects the different areas

12. What is the dead interval
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Forces protocols to behave as if they were classless
Telnet connectivity - authentication and extended ACLs
Autonomous System

13. How does a Standard ACL work?
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Plaintext and MD5
120
Checks the source address and then permits or denies the entire protocol suite

14. Advance Distance Vector or Hybrid uses what?
120
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
A trunk
A combination of Link-state and distance vector

15. What are two OSPF authentication methods?
Packet Header
0
RIPv2 and EIGRP
Plaintext and MD5

16. Rip is capable of load balancing over as many as?
The Diffusing Update Algorithm (DUAL)
...
Six equal cost paths
It is the signaling standard that maintains connection and statues between the DCE and DTE

17. VTP Server Mode does what?

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18. What are non designated routers called?
The inverse of a subnet mask.
...
To select the best path to the destination
DROTHER

19. What is the spilt horizon rule?
No
It is never useful to send information about a route back in the direction from which the original info came.
Unspecified
All backup routes for destinations.

20. The no auto-summary command does what?
Individual or group IP's
Forces protocols to behave as if they were classless
Area Border Router
By DLCI's

21. What is the Wildcard mask
The inverse of a subnet mask.
15.....16 hops and the interface is down
Supports both unequal metric load balancing and equal metric balancing.
Routes First/ Tests second

22. What are subinterfaces?
Multicast
Advance Distance Vector
1
Multiple virtual interfaces that are associated with one physical interface

23. In Link state terminology - What is a link?
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
A link is an interface on a router
2^n
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication

24. How do you configure OSPF
Every 10 Seconds
Domain
16
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0

25. Spanning-Tree cost of 100
120
EIGRP - OSPF - RIP
10Mb/s
Only with Cisco IOS software release 12.3 (2) T

26. Problem with RIP
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
MAC based
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Susceptible to routing loops

27. Formula for determining hosts
Each router builds a map of the network and determines the shortest path to every network.
2^n-2
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Adjacency

28. An OSPF neighbor relationship can also be called what?
Adjacency
It is the signaling standard that maintains connection and statues between the DCE and DTE
The inverse of a subnet mask.
All backup routes for destinations.

29. Admin distance of EIGRP?
90
For line vty 0 4
To reduce OSPF traffic
10Mb/s

30. What two things need to be done to enable dynamic routing?
TRUE
It combines the advantages of Link-State and Distance vector routing protocols.
A link is an interface on a router
Select the routing protocol - then specify the network.

31. What is ::1
Loopback
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
The inverse of a subnet mask.
Every 30 minutes by default

32. How does the SPF determine the shortest path?
TRUE
32768
Determines the cost which is the bandwidth
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address

33. What three types of IPv6 address types are there?
For line vty 0 4
Unicast - Multicast - Anycast
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Loopback

34. Purpose of a Routing Protocol?
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
All backup routes for destinations.
Determines the cost which is the bandwidth

35. How often are BPDU's sent?
Packets are processed before they are routed to an outbound interface.
Ever 2 seconds
Every 30 Seconds
Reduce the link-state database and routing table

36. With OSPF - there must always be a area......
Each router builds a map of the network and determines the shortest path to every network.
0
224.0.0.5
Multicast

37. What is the default load balancing for RIP
15.....16 hops and the interface is down
Bandwidth & Delay
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
4

38. What is an Autonomous System?
...
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
EIGRP - OSPF - RIP
Make sure you are in interface mode - then use this command ip access-group 1 out/in

39. How often does EIGRP send hellow packets?
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Telnet connectivity - authentication and extended ACLs
Every 5 seconds
Not scalable - hard to maintain as the network grows

40. What does the DR do?
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
DROTHER
Associating the network address with a local DLCI.
Updates all DROTHER Routers when a change occurs

41. What are the two ways routers can learn about the destination information?
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Cisco - ANSI - Q.933A
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Every 10 seconds

42. What two parameters does EIGRP use to determine the best route?
A combination of Link-state and distance vector
Advertised Distance & Feasible distance
224.0.0.5
A trunk

43. Dynamic ACL's are dependent on what?
Aka Subnet mask
Distance Vector
Telnet connectivity - authentication and extended ACLs
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.

44. Spanning-Tree cost of 19
Layers 1 & 2
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Checks the source address and then permits or denies the entire protocol suite
100Mb/s

45. Explain OSPF

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46. For an adjacency to occur what do the routers have to agree on?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Every 30 Seconds
View
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available

47. How does an Extended ACL work?
10Mb/s
Cisco - ANSI - Q.933A
Layers 1 & 2
Checks the source and destination address then permits or denies specific protocols

48. What is a VLAN
To reduce OSPF traffic
2^n
A group of end stations with a common set of requirements - independent of their physical location
Inter-VLAN routing

49. Max_age time for BPDU's

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50. Routers are used for what?
To select the best path to the destination
32768
RIPv2 and EIGRP
MD5 and you have to enable it if you want to use it.