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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. Rip is capable of load balancing over as many as?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Six equal cost paths
Supports both unequal metric load balancing and equal metric balancing.
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration

2. Can a Router exchange routing information if they are using different Routing Protocols?
No
224.0.0.10
IP
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0

3. Break down the word Link-State

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4. What is an ABR
View
Area Border Router
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
IETF

5. With ACL's where does the router extract information
Every 30 minutes by default
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Packet Header
Private: link local

6. How does an outbound ACL work?
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Different Autonomous Systems
Routes First/ Tests second
Six equal cost paths

7. Admin distance of RIPv2
120
Forces protocols to behave as if they were classless
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Select the routing protocol - then specify the network.

8. How do you configure OSPF
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Propagation of partial updates that are sent only to those routers that the changes affect.
0

9. A router running EIGRP will store what?
90
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
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
All backup routes for destinations.

10. How do you apply the ACL to an interface
It is the signaling standard that maintains connection and statues between the DCE and DTE
Unicast - Multicast - Anycast
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Ever 2 seconds

11. What do you need to do if there are discontigous networks with EIGRP?
Supports both unequal metric load balancing and equal metric balancing.
Disable auto summarization
A combination of Link-state and distance vector
Telnet connectivity - authentication and extended ACLs

12. What does the back bone router do?
Associating the network address with a local DLCI.
By DLCI's
Layers 1 & 2
Connects the different areas

13. What is needed to pass traffic from one VLAN to another?
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
A layer 3 switch or router
Different Autonomous Systems
All backup routes for destinations.

14. Admin distance of a connected Network?
Unspecified
A layer 3 switch or router
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
0

15. Benefits of OSPF?
0
Scalable and fast convergence
110
4 times the hello interval

16. How do you configure a sub interface?
30-50 seconds
Port based
Every 10 seconds
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

17. How often are OSPF hello packets sent out?
Associating the network address with a local DLCI.
IETF
Every 10 seconds
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs

18. Static VLAN is what?
Port based
Advance Distance Vector
Test Firsts/ Routes Second
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

19. Spanning-Tree cost of 19
RIPv2 and EIGRP
100Mb/s
Every 30 minutes by default
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication

20. With OSPF - what must be defined?
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Multiple virtual interfaces that are associated with one physical interface
Layers 1 & 2
A backbone area...Also known as Area 0

21. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
TRUE
224.0.0.10
Area Border Router
It is the signaling standard that maintains connection and statues between the DCE and DTE

22. Why is it important to have a loopback address when using OSPF?
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Packet Header
Reduce the link-state database and routing table
Domain

23. What does bounded refer to?
Forces protocols to behave as if they were classless
0
A protocol on how to communicate with other routers
Propagation of partial updates that are sent only to those routers that the changes affect.

24. Example of a Routing Protocol?
The lower MAC address
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
EIGRP - OSPF - RIP
Area Border Router

25. What is the spilt horizon rule?
It is never useful to send information about a route back in the direction from which the original info came.
Designated Router (DR) and a Back-up designated Router (BDR)
Test Firsts/ Routes Second
32768

26. Admin distance of EIGRP?
224.0.0.10
90
For line vty 0 4
4

27. Spanning-Tree cost of 100
Each router builds a map of the network and determines the shortest path to every network.
Scalable and fast convergence
10Mb/s
Carry's traffic for multiple VLANS

28. An autonomous system could also be referred to as what?
EIGRP - OSPF - RIP
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Checks the source and destination address then permits or denies specific protocols
Domain

29. What is passing VLAN traffic to another called?
IETF
Inter-VLAN routing
224.0.0.5
One ACL per protocol - One ACL per direction - Once ACL per interface

30. What type of authentication does EIGRP use?
Checks the source and destination address then permits or denies specific protocols
RIPv2 & EIGRP
MD5 and you have to enable it if you want to use it.
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs

31. What are the two ways routers can learn about the destination information?
100Mb/s
1.) Enter the Routing Manually 2.) Use Dymamic Routing
A group of end stations with a common set of requirements - independent of their physical location
Autonomous System

32. What does this mean? R 192.168.1.0/24 [120/2] via 10.1.1.2
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
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.
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.
TRUE

33. What three types of IPv6 address types are there?
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Unicast - Multicast - Anycast
A layer 3 switch or router
Port based

34. How is an EUI-64 format interface ID created from a 48-Bit MAC address
Every 30 Seconds
Telnet connectivity - authentication and extended ACLs
A combination of Link-state and distance vector
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address

35. Summarization of network information usually occurs where?
1
110
4
Between areas?

36. What type of algorithm does EIGRP use?
1.) Enter the Routing Manually 2.) Use Dymamic Routing
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Advance Distance Vector
To reduce OSPF traffic

37. What is an Autonomous System?
Checks the source and destination address then permits or denies specific protocols
For line vty 0 4
...
Port based

38. What is the default Bridge priority?
20 seconds: 10 missed BPDU's
Packets are processed before they are routed to an outbound interface.
32768
Anycast

39. What is the default for equal cost paths for load balancing with OSPF?
4
Routes First/ Tests second
Designated Router (DR) and a Back-up designated Router (BDR)
Because a loopback interface is always active and cannot be in a down state like a real interface can.

40. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
Automatically
View
Every 5 seconds
To reduce OSPF traffic

41. What is the dead interval
Forces protocols to behave as if they were classless
Unspecified
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Every 5 seconds

42. How does a Standard ACL work?
Checks the source address and then permits or denies the entire protocol suite
Each router builds a map of the network and determines the shortest path to every network.
The Diffusing Update Algorithm (DUAL)
Every 5 seconds

43. What is the multicast address for EIGRP?
A protocol on how to communicate with other routers
224.0.0.10
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.

44. Max_age time for BPDU's

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45. What is the default load balancing for RIP
Data Link Connection Identifier
No
It is never useful to send information about a route back in the direction from which the original info came.
4

46. Describe features of RIPv2
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
0
The Root bridge is the bridge with the lowest bridge ID

47. For a VLAN to span across multiple switches What is required?
EIGRP - OSPF - RIP
A trunk
Every 5 seconds
RIPv2 and EIGRP

48. Describe a Inbound ACL
It is never useful to send information about a route back in the direction from which the original info came.
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Packets are processed before they are routed to an outbound interface.
4

49. Problem with RIP
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
One ACL per protocol - One ACL per direction - Once ACL per interface
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Susceptible to routing loops

50. Example of a Routed Protocol?
IP
Telnet connectivity - authentication and extended ACLs
...
Ever 2 seconds