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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. What is passing VLAN traffic to another called?
A permit statement
Inter-VLAN routing
TRUE
All backup routes for destinations.

2. By default - EIGRP will perform automatic summarization on classful boundaries. True or False
224.0.0.5
TRUE
1Gb/s
Different Autonomous Systems

3. Why is EIGRP considered a Hybrid routing protocol?
It combines the advantages of Link-State and Distance vector routing protocols.
1Gb/s
Six equal cost paths
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.

4. When placing ACL's in the Network...Do what?

5. OSPF routes packets within a single?
Autonomous System
View
10Mb/s
Each router builds a map of the network and determines the shortest path to every network.

6. Problem with RIP
Susceptible to routing loops
Packets are processed before they are routed to an outbound interface.
Loopback
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs

7. Describe features of RIPv1
Loopback
Convergence
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Maximizing address efficiency - organization - summarization

8. A router running EIGRP will store what?
All backup routes for destinations.
Because a loopback interface is always active and cannot be in a down state like a real interface can.
100Mb/s
Bandwidth & Delay

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

10. Wildcard masks filter

11. Spanning-Tree coast of 4
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
1Gb/s
Individual or group IP's
Cisco - ANSI - Q.933A

12. Why is this done?
A backbone area...Also known as Area 0
To reduce OSPF traffic
...
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.

13. What is ::1
Updates all DROTHER Routers when a change occurs
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Loopback
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication

14. What are two OSPF authentication methods?
Associating the network address with a local DLCI.
Reduce the link-state database and routing table
Plaintext and MD5
Dijkstra's Algorithm

15. Explain OSPF

16. How does EIGRP work with regards to Load Balancing
View
Not scalable - hard to maintain as the network grows
Supports both unequal metric load balancing and equal metric balancing.
224.0.0.5

17. How often are LMI's sent out?
32768
Port based
Every 10 Seconds
Advance Distance Vector

18. What are two statements that are true of IPv6 address representation?
Every 5 seconds
Multiple virtual interfaces that are associated with one physical interface
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
10Mb/s

19. What is prefix length?
Aka Subnet mask
15.....16 hops and the interface is down
By DLCI's
Telnet connectivity - authentication and extended ACLs

20. How are Frame Relay Circuits identified?

21. How does the SPF determine the shortest path?
Forces protocols to behave as if they were classless
Determines the cost which is the bandwidth
A backbone area...Also known as Area 0
Adjacency

22. VTP Server Mode does what?

23. What do you need to do if there are discontigous networks with EIGRP?
Unspecified
Disable auto summarization
Advertised Distance & Feasible distance
90

24. 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.
10Mb/s
Make sure you are in interface mode - then use this command ip access-group 1 out/in
The lower MAC address

25. What is a VLAN
100Mb/s
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Multicast
A group of end stations with a common set of requirements - independent of their physical location

26. Max_age time for BPDU's

27. With OSPF - there must always be a area......
It is the signaling standard that maintains connection and statues between the DCE and DTE
Distance Vector
Determines the cost which is the bandwidth
0

28. What two classless protocols act classful by default?
Multiple virtual interfaces that are associated with one physical interface
RIPv2 & EIGRP
The Root bridge is the bridge with the lowest bridge ID
Not scalable - hard to maintain as the network grows

29. Formula for determining Subnets
16
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
100Mb/s
2^n

30. How does Link-State work?
Each router builds a map of the network and determines the shortest path to every network.
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Inter-VLAN routing
Checks the source and destination address then permits or denies specific protocols

31. What are the three LMI standards
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Cisco - ANSI - Q.933A
Unspecified

32. What is the spilt horizon rule?
For line vty 0 4
Loopback
RIPv2 & EIGRP
It is never useful to send information about a route back in the direction from which the original info came.

33. What does bounded refer to?
100Mb/s
Propagation of partial updates that are sent only to those routers that the changes affect.
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
1Gb/s

34. What is the default load balancing for RIP
Designated Router (DR) and a Back-up designated Router (BDR)
4
Advertised Distance & Feasible distance
One ACL per protocol - One ACL per direction - Once ACL per interface

35. What two parameters does EIGRP use to determine the best route?
32768
The update only includes info about the route change
Advertised Distance & Feasible distance
Individual or group IP's

36. For a VLAN to span across multiple switches What is required?
Every 10 Seconds
Port based
...
A trunk

37. With OSPF - what must be defined?
Scalable and fast convergence
A backbone area...Also known as Area 0
Carry's traffic for multiple VLANS
Packet Header

38. Can you delete individual entries in a specific ACL?
A link is an interface on a router
Null
For line vty 0 4
Only with Cisco IOS software release 12.3 (2) T

39. By default OSPF uses what type of authentication?
Null
Routes First/ Tests second
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Associating the network address with a local DLCI.

40. Routers are used for what?
To select the best path to the destination
EIGRP - OSPF - RIP
Each router builds a map of the network and determines the shortest path to every network.
Layers 1 & 2

41. Break down the word Link-State

42. Spanning-Tree cost of 19
Convergence
100Mb/s
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.

43. Routing protocol is what?
Supports both unequal metric load balancing and equal metric balancing.
A trunk
1
A protocol on how to communicate with other routers

44. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
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
Anycast
1
TRUE

45. Describe a Inbound ACL
Carry's traffic for multiple VLANS
Packets are processed before they are routed to an outbound interface.
Designated Router (DR) and a Back-up designated Router (BDR)
Automatically

46. What three types of IPv6 address types are there?
Bandwidth & Delay
RIPv2 and EIGRP
DROTHER
Unicast - Multicast - Anycast

47. In Link state terminology - What is a link?
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
0
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
A link is an interface on a router

48. How often does a router send link-state advertisements?
Individual or group IP's
Every 30 minutes by default
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Make sure you are in interface mode - then use this command ip access-group 1 out/in

49. What is Frame Relay?
Telnet connectivity - authentication and extended ACLs
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
2^n-2
...

50. An OSPF neighbor relationship can also be called what?
Adjacency
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
A trunk