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. Example of a Routed Protocol?
Layers 1 & 2
EIGRP - OSPF - RIP
Advance Distance Vector
IP

2. Why is this done?
The lower MAC address
Adjacency
4 times the hello interval
To reduce OSPF traffic

3. Describe features of RIPv1
The lower MAC address
The Root bridge is the bridge with the lowest bridge ID
32768
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication

4. Routing protocol is what?
A protocol on how to communicate with other routers
Plaintext and MD5
It is the signaling standard that maintains connection and statues between the DCE and DTE
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.

5. How often does EIGRP send hellow packets?
110
Null
Every 5 seconds
Because a loopback interface is always active and cannot be in a down state like a real interface can.

6. Describe features of RIPv2
Checks the source address and then permits or denies the entire protocol suite
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Unicast - Multicast - Anycast
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs

7. Describe a Inbound ACL
Checks the source and destination address then permits or denies specific protocols
Packets are processed before they are routed to an outbound interface.
Unspecified
4

8. What are two statements that are true of IPv6 address representation?
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Advance Distance Vector
To select the best path to the destination
Packets are processed before they are routed to an outbound interface.

9. Classful Protocols summarize
224.0.0.5
Every 10 Seconds
16
Automatically

10. What is one to nearest
Anycast
It combines the advantages of Link-State and Distance vector routing protocols.
Every 30 Seconds
15.....16 hops and the interface is down

11. Admin distance of RIPv2
Adjacency
120
Domain
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available

12. What does a trunk do?

13. What type of algorithm does EIGRP use?
Every 30 Seconds
Advance Distance Vector
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Designated Router (DR) and a Back-up designated Router (BDR)

14. What is ::
The inverse of a subnet mask.
IP
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
Unspecified

15. In Link state terminology - What is a link?
A link is an interface on a router
Aka Subnet mask
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Layers 1 & 2

16. Rip is capable of load balancing over as many as?
Six equal cost paths
Packets are processed before they are routed to an outbound interface.
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Reduce the link-state database and routing table

17. What is the default Bridge priority?
Private: link local
32768
16
Only topology within their respective area.

18. What type of authentication does EIGRP use?
Telnet connectivity - authentication and extended ACLs
Select the routing protocol - then specify the network.
MD5 and you have to enable it if you want to use it.
Anycast

19. The no auto-summary command does what?
Propagation of partial updates that are sent only to those routers that the changes affect.
Forces protocols to behave as if they were classless
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL

20. What distant vector protocols exhibit classless behavior?
RIPv2 and EIGRP
Cisco - ANSI - Q.933A
DROTHER
All backup routes for destinations.

21. What does partial refer to?
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Private: link local
Cisco - ANSI - Q.933A
The update only includes info about the route change

22. How many hops are allowed with RIP?
Null
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.
Bandwidth & Delay
15.....16 hops and the interface is down

23. OSPF routes packets within a single?
Autonomous System
Convergence
...
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers

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

25. Static VLAN is what?
Six equal cost paths
One ACL per protocol - One ACL per direction - Once ACL per interface
90
Port based

26. How does an Extended ACL work?
Every 10 seconds
Data Link Connection Identifier
10Mb/s
Checks the source and destination address then permits or denies specific protocols

27. Spanning-Tree cost of 100
Determines the cost which is the bandwidth
10Mb/s
Select the routing protocol - then specify the network.
Designated Router (DR) and a Back-up designated Router (BDR)

28. How does an outbound ACL work?
Designated Router (DR) and a Back-up designated Router (BDR)
Different Autonomous Systems
Null
Routes First/ Tests second

29. What two things need to be done to enable dynamic routing?
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
No
Every 30 minutes by default
Select the routing protocol - then specify the network.

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

31. Who designed OSPF?
View
Every 30 minutes by default
Make sure you are in interface mode - then use this command ip access-group 1 out/in
IETF

32. Can you delete individual entries in a specific ACL?
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Forces protocols to behave as if they were classless
Only with Cisco IOS software release 12.3 (2) T
1.) Enter the Routing Manually 2.) Use Dymamic Routing

33. What does bounded refer to?
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.
Packets are processed before they are routed to an outbound interface.
Propagation of partial updates that are sent only to those routers that the changes affect.
Only with Cisco IOS software release 12.3 (2) T

34. In regards to ACL's What are the three protocols?
One ACL per protocol - One ACL per direction - Once ACL per interface
A combination of Link-state and distance vector
90
DROTHER

35. Dynamic ACL's are dependent on what?
DROTHER
IETF
Propagation of partial updates that are sent only to those routers that the changes affect.
Telnet connectivity - authentication and extended ACLs

36. The time delay for a router to match a network change?
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.
Bandwidth & Delay
Convergence
Layers 1 & 2

37. What address is FE80:/10
Determines the cost which is the bandwidth
Every 10 Seconds
A permit statement
Private: link local

38. How long is the dead interval
4 times the hello interval
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
10Mb/s

39. In frame relay What is Inverse Arp
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
No
Associating the network address with a local DLCI.
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

40. Exterior Gateway Protocols are designed for use between
To reduce OSPF traffic
Different Autonomous Systems
4
Each router builds a map of the network and determines the shortest path to every network.

41. Admin distance of a connected Network?
0
2^n
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.
Distance Vector

42. What is prefix length?
Determines the cost which is the bandwidth
Advertised Distance & Feasible distance
Aka Subnet mask
Between areas?

43. How often are OSPF hello packets sent out?
Advance Distance Vector
By DLCI's
Every 10 seconds
The Root bridge is the bridge with the lowest bridge ID

44. How does the SPF determine the shortest path?
1Gb/s
120
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Determines the cost which is the bandwidth

45. Break down the word Link-State

46. What is the spilt horizon rule?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
It is never useful to send information about a route back in the direction from which the original info came.
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
The update only includes info about the route change

47. With OSPF - what must be defined?
A backbone area...Also known as Area 0
TRUE
Autonomous System
Inter-VLAN routing

48. Max_age time for BPDU's

49. VTP Client Mode does what?

50. What are two OSPF authentication methods?
Designated Router (DR) and a Back-up designated Router (BDR)
...
Advance Distance Vector
Plaintext and MD5