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. What is one to many?
Link-State
Distance Vector
Multicast
IP

2. What Layer does Frame Relay operate at?
Layers 1 & 2
Determines the cost which is the bandwidth
It combines the advantages of Link-State and Distance vector routing protocols.
It is never useful to send information about a route back in the direction from which the original info came.

3. What do area's do?
It is never useful to send information about a route back in the direction from which the original info came.
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
Between areas?

4. VTP Server Mode does what?

5. In frame relay What is Inverse Arp
Distance Vector
The Diffusing Update Algorithm (DUAL)
Associating the network address with a local DLCI.
It is never useful to send information about a route back in the direction from which the original info came.

6. In regards to troubleshooting OSPF what should you check?
Only with Cisco IOS software release 12.3 (2) T
Domain
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication

7. Admin distance of EIGRP?
Carry's traffic for multiple VLANS
90
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL

8. How long is the dead interval
Autonomous System
Every 30 Seconds
4 times the hello interval
Plaintext and MD5

9. What does this mean? R 192.168.1.0/24 [120/2] via 10.1.1.2
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.
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
All backup routes for destinations.

10. What is the purpose of LMI
Unicast - Multicast - Anycast
It is the signaling standard that maintains connection and statues between the DCE and DTE
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Determines the cost which is the bandwidth

11. What type of algorithm does EIGRP use?
Plaintext and MD5
Advance Distance Vector
Forces protocols to behave as if they were classless
It is the signaling standard that maintains connection and statues between the DCE and DTE

12. What are the two ways routers can learn about the destination information?
By DLCI's
16
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Link-State

13. What is the multicast address for EIGRP?
Ever 2 seconds
Different Autonomous Systems
224.0.0.10
Anycast

14. Formula for determining hosts
Six equal cost paths
Maximizing address efficiency - organization - summarization
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
2^n-2

15. What is the Shortest Path First algorithm also called?

16. By default - EIGRP will perform automatic summarization on classful boundaries. True or False
TRUE
Test Firsts/ Routes Second
Domain
0

17. What is the Wildcard mask
The inverse of a subnet mask.
Select the routing protocol - then specify the network.
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Make sure you are in interface mode - then use this command ip access-group 1 out/in

18. Why is EIGRP considered a Hybrid routing protocol?
It combines the advantages of Link-State and Distance vector routing protocols.
Maximizing address efficiency - organization - summarization
For line vty 0 4
Only with Cisco IOS software release 12.3 (2) T

19. In regards to ACL's What are the three protocols?
The lower MAC address
A combination of Link-state and distance vector
One ACL per protocol - One ACL per direction - Once ACL per interface
Domain

20. What are the three LMI standards
Cisco - ANSI - Q.933A
Dijkstra's Algorithm
Private: link local
The inverse of a subnet mask.

21. What is a VLAN
Reduce the link-state database and routing table
Distance Vector
A group of end stations with a common set of requirements - independent of their physical location
4 times the hello interval

22. What three types of IPv6 address types are there?
1
The inverse of a subnet mask.
Forces protocols to behave as if they were classless
Unicast - Multicast - Anycast

23. Summarization of network information usually occurs where?
Checks the source and destination address then permits or denies specific protocols
Between areas?
20 seconds: 10 missed BPDU's
Aka Subnet mask

24. Admin distance of RIPv2
Bandwidth & Delay
120
224.0.0.5
Only topology within their respective area.

25. What does bounded refer to?
Propagation of partial updates that are sent only to those routers that the changes affect.
120
Not scalable - hard to maintain as the network grows
20 seconds: 10 missed BPDU's

26. With OSPF - what must be defined?
All backup routes for destinations.
1.) Enter the Routing Manually 2.) Use Dymamic Routing
A backbone area...Also known as Area 0
Disable auto summarization

27. How does the SPF determine the shortest path?
Determines the cost which is the bandwidth
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Reduce the link-state database and routing table
EIGRP - OSPF - RIP

28. With OSPF - there must always be a area......
Every 30 minutes by default
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
20 seconds: 10 missed BPDU's
0

29. Example of a Routed Protocol?
IP
Test Firsts/ Routes Second
Associating the network address with a local DLCI.
TRUE

30. Benefits of OSPF?
RIPv2 & EIGRP
Between areas?
Scalable and fast convergence
IETF

31. Dynamic VLAN is what?
Link-State
Layers 1 & 2
MAC based
Make sure you are in interface mode - then use this command ip access-group 1 out/in

32. What does the back bone router do?
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Routes First/ Tests second
Link-State
Connects the different areas

33. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
View
Telnet connectivity - authentication and extended ACLs
Between areas?
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available

34. Explain OSPF

35. The AS number must what?
Match on all routers or it will not work
224.0.0.5
Ever 2 seconds
Checks the source and destination address then permits or denies specific protocols

36. How often are OSPF hello packets sent out?
Every 10 seconds
RIPv2 and EIGRP
Data Link Connection Identifier
Every 30 Seconds

37. What is an Autonomous System?
...
Susceptible to routing loops
1
A trunk

38. What is passing VLAN traffic to another called?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Inter-VLAN routing
Data Link Connection Identifier
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0

39. Break down the word Link-State

40. Every ACL will need what?
Packets are processed before they are routed to an outbound interface.
A permit statement
110
Not scalable - hard to maintain as the network grows

41. Describe features of RIPv2
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
1.) Enter the Routing Manually 2.) Use Dymamic Routing
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication

42. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
EIGRP - OSPF - RIP
One ACL per protocol - One ACL per direction - Once ACL per interface
The lower MAC address
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.

43. For an adjacency to occur what do the routers have to agree on?
A layer 3 switch or router
It combines the advantages of Link-State and Distance vector routing protocols.
Susceptible to routing loops
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.

44. What is ::
...
4
Unspecified
A link is an interface on a router

45. How is the root bridge determined?
Private: link local
The Root bridge is the bridge with the lowest bridge ID
Reduce the link-state database and routing table
Autonomous System

46. Can you delete individual entries in a specific ACL?
Loopback
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Only with Cisco IOS software release 12.3 (2) T
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.

47. How does a Standard ACL work?
Match on all routers or it will not work
Checks the source address and then permits or denies the entire protocol suite
MAC based
Six equal cost paths

48. What is ::1
Link-State
Loopback
Autonomous System
Not scalable - hard to maintain as the network grows

49. How often are LMI's sent out?
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Every 10 Seconds
Inter-VLAN routing

50. How does an outbound ACL work?
Six equal cost paths
Dijkstra's Algorithm
It is never useful to send information about a route back in the direction from which the original info came.
Routes First/ Tests second