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 the multicast address for EIGRP?
32768
Maximizing address efficiency - organization - summarization
224.0.0.10
The Root bridge is the bridge with the lowest bridge ID

2. Static VLAN is what?
Port based
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
View
Aka Subnet mask

3. By default - EIGRP will perform automatic summarization on classful boundaries. True or False
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
TRUE
A combination of Link-state and distance vector
2^n

4. When do you use Access-Class
Checks the source address and then permits or denies the entire protocol suite
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.
Supports both unequal metric load balancing and equal metric balancing.
For line vty 0 4

5. What is ::1
Loopback
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Propagation of partial updates that are sent only to those routers that the changes affect.
MAC based

6. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
1.) Enter the Routing Manually 2.) Use Dymamic Routing
IP
By DLCI's
View

7. What are the two ways routers can learn about the destination information?
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
4
1.) Enter the Routing Manually 2.) Use Dymamic Routing

8. With OSPF - what must be defined?
Bandwidth & Delay
Dijkstra's Algorithm
Propagation of partial updates that are sent only to those routers that the changes affect.
A backbone area...Also known as Area 0

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

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10. How many hops are allowed with RIP?
MD5 and you have to enable it if you want to use it.
A permit statement
15.....16 hops and the interface is down
A trunk

11. How does a Standard ACL work?
Checks the source address and then permits or denies the entire protocol suite
MAC based
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
It is never useful to send information about a route back in the direction from which the original info came.

12. How often are periodic updates sent out via RIP
Every 30 Seconds
224.0.0.10
The inverse of a subnet mask.
20 seconds: 10 missed BPDU's

13. What address is FE80:/10
Private: link local
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Advance Distance Vector
To select the best path to the destination

14. How often are BPDU's sent?
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Ever 2 seconds
90
View

15. Advance Distance Vector or Hybrid uses what?
...
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
A combination of Link-state and distance vector
4

16. Why is it important to have a loopback address when using OSPF?
MAC based
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.
Because a loopback interface is always active and cannot be in a down state like a real interface can.
If int status is UP/UP..Check to make sure OSPF is enabled on the interface

17. What does bounded refer to?
Forces protocols to behave as if they were classless
Propagation of partial updates that are sent only to those routers that the changes affect.
0
Only with Cisco IOS software release 12.3 (2) T

18. What type of algorithm does OSPF & IS-IS use?
Ever 2 seconds
Link-State
Private: link local
...

19. What is one to many?
Every 10 Seconds
Domain
Convergence
Multicast

20. What type of algorithm does EIGRP use?
Advance Distance Vector
Automatically
MD5 and you have to enable it if you want to use it.
Dijkstra's Algorithm

21. What Layer does Frame Relay operate at?
2^n
Test Firsts/ Routes Second
A link is an interface on a router
Layers 1 & 2

22. A router running EIGRP will store what?
All backup routes for destinations.
No
Inter-VLAN routing
The Root bridge is the bridge with the lowest bridge ID

23. Admin distance of a Static Route?
IETF
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Convergence
1

24. How does Link-State work?
View
Between areas?
Dijkstra's Algorithm
Each router builds a map of the network and determines the shortest path to every network.

25. OSPF routes packets within a single?
2^n
Area Border Router
Reduce the link-state database and routing table
Autonomous System

26. What is one to nearest
Convergence
100Mb/s
Link-State
Anycast

27. Spanning-Tree cost of 100
Six equal cost paths
10Mb/s
Only topology within their respective area.
Supports both unequal metric load balancing and equal metric balancing.

28. How does inbound ACL work?
...
Link-State
Test Firsts/ Routes Second
View

29. OSPF will elect a what?
Cisco - ANSI - Q.933A
Designated Router (DR) and a Back-up designated Router (BDR)
Updates all DROTHER Routers when a change occurs
Advertised Distance & Feasible distance

30. What type of algorithm does RIP use?
IETF
100Mb/s
Distance Vector
Inter-VLAN routing

31. 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
Every 10 Seconds
By DLCI's
Plaintext and MD5

32. What does this mean? R 192.168.1.0/24 [120/2] via 10.1.1.2
Every 10 seconds
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
Not scalable - hard to maintain as the network grows

33. Benefits of OSPF?
Scalable and fast convergence
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
Updates all DROTHER Routers when a change occurs

34. The no auto-summary command does what?
Forces protocols to behave as if they were classless
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.
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Aka Subnet mask

35. 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
To reduce OSPF traffic
By DLCI's
A permit statement

36. What is the default load balancing for RIP
A combination of Link-state and distance vector
4
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
It is never useful to send information about a route back in the direction from which the original info came.

37. In frame relay What is Inverse Arp
TRUE
Every 30 Seconds
Unicast - Multicast - Anycast
Associating the network address with a local DLCI.

38. How do you configure OSPF
RIPv2 and EIGRP
Dijkstra's Algorithm
32768
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0

39. Routers are used for what?
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.
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Because a loopback interface is always active and cannot be in a down state like a real interface can.
To select the best path to the destination

40. In regards to troubleshooting OSPF what should you check?
A trunk
30-50 seconds
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
If int status is UP/UP..Check to make sure OSPF is enabled on the interface

41. Can a Router exchange routing information if they are using different Routing Protocols?
Autonomous System
EIGRP - OSPF - RIP
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
No

42. Break down the word Link-State

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43. With OSPF - there must always be a area......
0
90
One ACL per protocol - One ACL per direction - Once ACL per interface
RIPv2 & EIGRP

44. Explain OSPF

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45. What are the three LMI standards
Cisco - ANSI - Q.933A
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Loopback
Plaintext and MD5

46. What does the DR do?
120
Autonomous System
Connects the different areas
Updates all DROTHER Routers when a change occurs

47. Why is this done?
Multiple virtual interfaces that are associated with one physical interface
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
To reduce OSPF traffic
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.

48. What two parameters does EIGRP use to determine the best route?
DROTHER
Advertised Distance & Feasible distance
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Ever 2 seconds

49. What is an Autonomous System?
...
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
110
Checks the source and destination address then permits or denies specific protocols

50. Purpose of a Routing Protocol?
15.....16 hops and the interface is down
Associating the network address with a local DLCI.
No
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available