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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. Problem with static routes
The update only includes info about the route change
Reduce the link-state database and routing table
Not scalable - hard to maintain as the network grows
Private: link local

2. By default - EIGRP will perform automatic summarization on classful boundaries. True or False
TRUE
Because a loopback interface is always active and cannot be in a down state like a real interface can.
10Mb/s
Unspecified

3. Advance Distance Vector or Hybrid uses what?
Checks the source and destination address then permits or denies specific protocols
A combination of Link-state and distance vector
1Gb/s
For line vty 0 4

4. Summarization of network information usually occurs where?
Domain
Between areas?
Distance Vector
Propagation of partial updates that are sent only to those routers that the changes affect.

5. By default OSPF uses what type of authentication?
Distance Vector
Null
Packet Header
Advertised Distance & Feasible distance

6. In regards to ACL's What are the three protocols?
For line vty 0 4
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 a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
One ACL per protocol - One ACL per direction - Once ACL per interface

7. With OSPF - there must always be a area......
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Unspecified
Connects the different areas
0

8. What is the purpose of LMI
It is the signaling standard that maintains connection and statues between the DCE and DTE
By DLCI's
30-50 seconds
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.

9. When do you use Access-Class
TRUE
Packets are processed before they are routed to an outbound interface.
For line vty 0 4
MAC based

10. With ACL's where does the router extract information
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Packet Header
Match on all routers or it will not work
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs

11. What is an ABR
110
Area Border Router
Not scalable - hard to maintain as the network grows
No

12. In regards to troubleshooting OSPF what should you check?
Distance Vector
MD5 and you have to enable it if you want to use it.
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

13. How often are OSPF hello packets sent out?
MD5 and you have to enable it if you want to use it.
View
Every 10 seconds
Multiple virtual interfaces that are associated with one physical interface

14. What does partial refer to?
The update only includes info about the route change
Port based
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.
Unicast - Multicast - Anycast

15. What are the three LMI standards
DROTHER
No
Cisco - ANSI - Q.933A
Every 30 minutes by default

16. Normal time for STP convergence
Layers 1 & 2
110
30-50 seconds
0

17. How often are periodic updates sent out via RIP
A protocol on how to communicate with other routers
Every 30 Seconds
Between areas?
If int status is UP/UP..Check to make sure OSPF is enabled on the interface

18. What is one to nearest
Anycast
Autonomous System
MAC based
RIPv2 and EIGRP

19. In Link state terminology - What is a link?

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20. Admin distance of a Static Route?
Supports both unequal metric load balancing and equal metric balancing.
DROTHER
1
Six equal cost paths

21. What is one to many?
110
Multicast
Ever 2 seconds
2^n

22. How does EIGRP work with regards to Load Balancing
The Root bridge is the bridge with the lowest bridge ID
Supports both unequal metric load balancing and equal metric balancing.
4
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

23. OSPF will elect a what?
Designated Router (DR) and a Back-up designated Router (BDR)
For line vty 0 4
One ACL per protocol - One ACL per direction - Once ACL per interface
Make sure you are in interface mode - then use this command ip access-group 1 out/in

24. What three types of IPv6 address types are there?
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Unicast - Multicast - Anycast
RIPv2 & EIGRP
DROTHER

25. An OSPF neighbor relationship can also be called what?
Cisco - ANSI - Q.933A
Adjacency
A backbone area...Also known as Area 0
4

26. Explain OSPF

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27. Admin distance of OSPF?
Unspecified
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Individual or group IP's
110

28. How does a Standard ACL work?
To reduce OSPF traffic
Checks the source address and then permits or denies the entire protocol suite
IP
Private: link local

29. How do you configure a sub interface?
Cisco - ANSI - Q.933A
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
Connects the different areas
RIPv2 & EIGRP

30. How does inbound ACL work?
A trunk
...
Test Firsts/ Routes Second
To reduce OSPF traffic

31. What are non designated routers called?
Determines the cost which is the bandwidth
DROTHER
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
All backup routes for destinations.

32. What does this mean? R 192.168.1.0/24 [120/2] via 10.1.1.2
TRUE
...
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.
Only topology within their respective area.

33. Wildcard masks filter

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34. Benefits of OSPF?
Scalable and fast convergence
Maximizing address efficiency - organization - summarization
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Individual or group IP's

35. Routers are used for what?
20 seconds: 10 missed BPDU's
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
To select the best path to the destination

36. How often are BPDU's sent?
Multicast
Ever 2 seconds
15.....16 hops and the interface is down
Connects the different areas

37. For a VLAN to span across multiple switches What is required?
A combination of Link-state and distance vector
A trunk
Checks the source address and then permits or denies the entire protocol suite
Advance Distance Vector

38. How does Link-State work?
...
110
Each router builds a map of the network and determines the shortest path to every network.
No

39. Why is this done?
To reduce OSPF traffic
View
4 times the hello interval
Supports both unequal metric load balancing and equal metric balancing.

40. Describe features of RIPv1
Area Border Router
A link is an interface on a router
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.

41. Dynamic VLAN is what?
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
MAC based
To reduce OSPF traffic
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.

42. How often are LMI's sent out?
Every 10 Seconds
All backup routes for destinations.
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Each router builds a map of the network and determines the shortest path to every network.

43. Spanning-Tree coast of 4
Domain
Distance Vector
1Gb/s
Data Link Connection Identifier

44. What is the Wildcard mask
Advertised Distance & Feasible distance
A link is an interface on a router
The inverse of a subnet mask.
One ACL per protocol - One ACL per direction - Once ACL per interface

45. Static VLAN is what?
Port based
The Root bridge is the bridge with the lowest bridge ID
A trunk
1Gb/s

46. Purpose of a Routing Protocol?
RIPv2 and EIGRP
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Unicast - Multicast - Anycast

47. The no auto-summary command does what?
1Gb/s
Connects the different areas
The Root bridge is the bridge with the lowest bridge ID
Forces protocols to behave as if they were classless

48. How is the root bridge determined?
4
The Root bridge is the bridge with the lowest bridge ID
Every 30 minutes by default
Advertised Distance & Feasible distance

49. Routing protocol is what?
Aka Subnet mask
Routes First/ Tests second
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
A protocol on how to communicate with other routers

50. What distant vector protocols exhibit classless behavior?
A backbone area...Also known as Area 0
RIPv2 and EIGRP
Unspecified
100Mb/s