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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. How does an Extended ACL work?
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Disable auto summarization
224.0.0.10
Checks the source and destination address then permits or denies specific protocols

2. What is OSPF multicast address?
Data Link Connection Identifier
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
224.0.0.5
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers

3. What algorithm does EIGRP use?
The Diffusing Update Algorithm (DUAL)
90
Inter-VLAN routing
Private: link local

4. How are Frame Relay Circuits identified?

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5. What is the default load balancing for RIP
TRUE
Multicast
Associating the network address with a local DLCI.
4

6. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
Only with Cisco IOS software release 12.3 (2) T
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
A backbone area...Also known as Area 0
16

7. Benefits of OSPF?
Scalable and fast convergence
Carry's traffic for multiple VLANS
Autonomous System
A permit statement

8. Nonbackbone - internal routers are aware of what topology
Scalable and fast convergence
...
Plaintext and MD5
Only topology within their respective area.

9. What does bounded refer to?
Propagation of partial updates that are sent only to those routers that the changes affect.
Null
Maximizing address efficiency - organization - summarization
A group of end stations with a common set of requirements - independent of their physical location

10. VTP Client Mode does what?

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11. OSPF will elect a what?
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Determines the cost which is the bandwidth
Designated Router (DR) and a Back-up designated Router (BDR)

12. With OSPF - what must be defined?
A permit statement
224.0.0.5
A backbone area...Also known as Area 0
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.

13. Admin distance of EIGRP?
10Mb/s
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Area Border Router
90

14. Routers are used for what?
To select the best path to the destination
Match on all routers or it will not work
Unspecified
...

15. Problem with RIP
100Mb/s
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Susceptible to routing loops

16. Rip is capable of load balancing over as many as?
Advertised Distance & Feasible distance
4
Six equal cost paths
Maximizing address efficiency - organization - summarization

17. Spanning-Tree cost of 100
Associating the network address with a local DLCI.
16
1.) Enter the Routing Manually 2.) Use Dymamic Routing
10Mb/s

18. Admin distance of OSPF?
View
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
110
It is never useful to send information about a route back in the direction from which the original info came.

19. Why is EIGRP considered a Hybrid routing protocol?
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.
It combines the advantages of Link-State and Distance vector routing protocols.
TRUE
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.

20. 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
View
...
TRUE

21. How often are OSPF hello packets sent out?
Every 10 seconds
A backbone area...Also known as Area 0
Layers 1 & 2
IETF

22. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
Advance Distance Vector
Every 10 seconds
0
TRUE

23. What type of algorithm does OSPF & IS-IS use?
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Link-State
For line vty 0 4
Data Link Connection Identifier

24. OSPF routes packets within a single?
Plaintext and MD5
Autonomous System
0
Select the routing protocol - then specify the network.

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.
Every 5 seconds
It combines the advantages of Link-State and Distance vector routing protocols.
Every 30 Seconds

26. What type of algorithm does RIP use?
View
Distance Vector
Advertised Distance & Feasible distance
A layer 3 switch or router

27. How does the SPF determine the shortest path?
Checks the source address and then permits or denies the entire protocol suite
1Gb/s
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.
Determines the cost which is the bandwidth

28. Describe a Inbound ACL
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Packets are processed before they are routed to an outbound interface.
A layer 3 switch or router
All backup routes for destinations.

29. Describe an Outbound ACL
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
EIGRP - OSPF - RIP
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.

30. What is the purpose of LMI
It is the signaling standard that maintains connection and statues between the DCE and DTE
Routes First/ Tests second
Only with Cisco IOS software release 12.3 (2) T
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

31. How does Link-State work?
Each router builds a map of the network and determines the shortest path to every network.
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
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.
90

32. What are the three LMI standards
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Reduce the link-state database and routing table
Cisco - ANSI - Q.933A
The inverse of a subnet mask.

33. The advantages of VLSM
Maximizing address efficiency - organization - summarization
EIGRP - OSPF - RIP
30-50 seconds
If int status is UP/UP..Check to make sure OSPF is enabled on the interface

34. Can a Router exchange routing information if they are using different Routing Protocols?
No
90
Link-State
Domain

35. What is the multicast address for EIGRP?
Disable auto summarization
DROTHER
224.0.0.10
32768

36. How long is the dead interval
4 times the hello interval
Carry's traffic for multiple VLANS
The Root bridge is the bridge with the lowest bridge ID
Make sure you are in interface mode - then use this command ip access-group 1 out/in

37. Example of a Routing Protocol?
A group of end stations with a common set of requirements - independent of their physical location
EIGRP - OSPF - RIP
Plaintext and MD5
Telnet connectivity - authentication and extended ACLs

38. How do you configure OSPF
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
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.
Null
A link is an interface on a router

39. What is an ABR
...
Area Border Router
Propagation of partial updates that are sent only to those routers that the changes affect.
Between areas?

40. Example of a Routed Protocol?
IP
The Root bridge is the bridge with the lowest bridge ID
A trunk
View

41. The time delay for a router to match a network change?
Convergence
Every 30 minutes by default
Every 10 seconds
If int status is UP/UP..Check to make sure OSPF is enabled on the interface

42. How do you configure a sub interface?
90
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 5 seconds
Inter-VLAN routing

43. What is prefix length?
Disable auto summarization
Aka Subnet mask
A backbone area...Also known as Area 0
Loopback

44. How often are periodic updates sent out via RIP
Every 30 Seconds
Adjacency
Automatically
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.

45. What two parameters does EIGRP use to determine the best route?
Advertised Distance & Feasible distance
Make sure you are in interface mode - then use this command ip access-group 1 out/in
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.

46. What distant vector protocols exhibit classless behavior?
Test Firsts/ Routes Second
Six equal cost paths
Null
RIPv2 and EIGRP

47. What address is FE80:/10
Only topology within their respective area.
Private: link local
224.0.0.5
Advertised Distance & Feasible distance

48. Static VLAN is what?
Susceptible to routing loops
Multicast
The Diffusing Update Algorithm (DUAL)
Port based

49. Admin distance of RIPv2
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Bandwidth & Delay
120

50. What does a trunk do?

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