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. In Link state terminology - What is a link?

2. How does the SPF determine the shortest path?
Determines the cost which is the bandwidth
Packet Header
Null
Checks the source address and then permits or denies the entire protocol suite

3. Rip is capable of load balancing over as many as?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Layers 1 & 2
Connects the different areas
Six equal cost paths

4. An OSPF neighbor relationship can also be called what?
Adjacency
30-50 seconds
Automatically
Designated Router (DR) and a Back-up designated Router (BDR)

5. What is the default Bridge priority?
32768
1Gb/s
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Maximizing address efficiency - organization - summarization

6. What two things need to be done to enable dynamic routing?
Forces protocols to behave as if they were classless
Select the routing protocol - then specify the network.
The lower MAC address
The inverse of a subnet mask.

7. How does inbound ACL work?
20 seconds: 10 missed BPDU's
Test Firsts/ Routes Second
Only with Cisco IOS software release 12.3 (2) T
The Root bridge is the bridge with the lowest bridge ID

8. Describe features of RIPv2
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Select the routing protocol - then specify the network.
Determines the cost which is the bandwidth
Null

9. What is OSPF multicast address?
224.0.0.5
Susceptible to routing loops
32768
Supports both unequal metric load balancing and equal metric balancing.

10. What is the Wildcard mask
120
IETF
It combines the advantages of Link-State and Distance vector routing protocols.
The inverse of a subnet mask.

11. How does Link-State work?
Distance Vector
Each router builds a map of the network and determines the shortest path to every network.
To select the best path to the destination
A group of end stations with a common set of requirements - independent of their physical location

12. What are the three LMI standards
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Cisco - ANSI - Q.933A
15.....16 hops and the interface is down
A trunk

13. What does the DR do?
Forces protocols to behave as if they were classless
Updates all DROTHER Routers when a change occurs
Bandwidth & Delay
Data Link Connection Identifier

14. Describe features of RIPv1
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Match on all routers or it will not work
120

15. What does this mean? R 192.168.1.0/24 [120/2] via 10.1.1.2
...
Every 30 minutes by default
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.
Unicast - Multicast - Anycast

16. How often does EIGRP send hellow packets?
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Every 30 minutes by default
Every 5 seconds
2^n

17. What type of authentication does EIGRP use?
MD5 and you have to enable it if you want to use it.
Checks the source and destination address then permits or denies specific protocols
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Scalable and fast convergence

18. What are two statements that are true of IPv6 address representation?
Telnet connectivity - authentication and extended ACLs
It combines the advantages of Link-State and Distance vector routing protocols.
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Not scalable - hard to maintain as the network grows

19. An autonomous system could also be referred to as what?
Test Firsts/ Routes Second
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
View
Domain

20. What type of algorithm does RIP use?
Not scalable - hard to maintain as the network grows
Distance Vector
0
TRUE

21. The AS number must what?
A trunk
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Aka Subnet mask
Match on all routers or it will not work

22. What is an Autonomous System?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
...
Distance Vector

23. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
Area Border Router
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Automatically
16

24. How are Frame Relay Circuits identified?

25. With ACL's where does the router extract information
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
2^n-2
Packet Header

26. With OSPF - what must be defined?
A backbone area...Also known as Area 0
Connects the different areas
A group of end stations with a common set of requirements - independent of their physical location
All backup routes for destinations.

27. A router running EIGRP will store what?
All backup routes for destinations.
...
Updates all DROTHER Routers when a change occurs
Test Firsts/ Routes Second

28. OSPF will elect a what?
Designated Router (DR) and a Back-up designated Router (BDR)
Every 10 seconds
Six equal cost paths
Individual or group IP's

29. Benefits of OSPF?
Scalable and fast convergence
2^n-2
1
Domain

30. Admin distance of a Static Route?
Ever 2 seconds
Cisco - ANSI - Q.933A
The update only includes info about the route change
1

31. What two parameters does EIGRP use to determine the best route?
Adjacency
4 times the hello interval
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Advertised Distance & Feasible distance

32. What are two OSPF authentication methods?
4
Plaintext and MD5
A layer 3 switch or router
All backup routes for destinations.

33. How often are periodic updates sent out via RIP
Forces protocols to behave as if they were classless
Advance Distance Vector
Area Border Router
Every 30 Seconds

34. How often are BPDU's sent?
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Propagation of partial updates that are sent only to those routers that the changes affect.
Autonomous System
Ever 2 seconds

35. By default OSPF uses what type of authentication?
Distance Vector
Null
By DLCI's
Every 30 minutes by default

36. In Link state terminology - What is a link?
Checks the source address and then permits or denies the entire protocol suite
A link is an interface on a router
Six equal cost paths
10Mb/s

37. What is Frame Relay?
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Not scalable - hard to maintain as the network grows
TRUE
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.

38. For an adjacency to occur what do the routers have to agree on?
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Every 30 Seconds
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
1.) Enter the Routing Manually 2.) Use Dymamic Routing

39. How many hops are allowed with RIP?
15.....16 hops and the interface is down
Advance Distance Vector
110
Unicast - Multicast - Anycast

40. Exterior Gateway Protocols are designed for use between
Inter-VLAN routing
Different Autonomous Systems
IETF
Every 30 Seconds

41. What is the purpose of LMI
Loopback
Every 5 seconds
Test Firsts/ Routes Second
It is the signaling standard that maintains connection and statues between the DCE and DTE

42. Spanning-Tree cost of 19
100Mb/s
IETF
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.

43. Static VLAN is what?
It is never useful to send information about a route back in the direction from which the original info came.
Port based
Every 5 seconds
A protocol on how to communicate with other routers

44. What is the multicast address for EIGRP?
224.0.0.10
100Mb/s
Inter-VLAN routing
EIGRP - OSPF - RIP

45. Normal time for STP convergence
30-50 seconds
Loopback
The Diffusing Update Algorithm (DUAL)
Between areas?

46. What is the dead interval
Checks the source address and then permits or denies the entire protocol suite
A trunk
16
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.

47. How often are OSPF hello packets sent out?
Every 10 seconds
15.....16 hops and the interface is down
224.0.0.5
Layers 1 & 2

48. What are the major components of OSPF troubleshooting?
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Distance Vector
Carry's traffic for multiple VLANS
224.0.0.10

49. What is prefix length?
To reduce OSPF traffic
Aka Subnet mask
Connects the different areas
The lower MAC address

50. Example of a Routing Protocol?
Port based
Disable auto summarization
EIGRP - OSPF - RIP
TRUE