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. What Layer does Frame Relay operate at?
Layers 1 & 2
Adjacency
0
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.

2. What is an ABR
Area Border Router
Telnet connectivity - authentication and extended ACLs
20 seconds: 10 missed BPDU's
Updates all DROTHER Routers when a change occurs

3. Routers are used for what?
Susceptible to routing loops
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
To select the best path to the destination
Make sure you are in interface mode - then use this command ip access-group 1 out/in

4. Admin distance of RIPv2
Aka Subnet mask
Ever 2 seconds
Anycast
120

5. The advantages of VLSM
15.....16 hops and the interface is down
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Checks the source and destination address then permits or denies specific protocols
Maximizing address efficiency - organization - summarization

6. Why is this done?
4 times the hello interval
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
To reduce OSPF traffic
The update only includes info about the route change

7. How many hops are allowed with RIP?
A link is an interface on a router
15.....16 hops and the interface is down
A trunk
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers

8. Describe a Inbound ACL
Cisco - ANSI - Q.933A
Packets are processed before they are routed to an outbound interface.
Automatically
Port based

9. Formula for determining Subnets
A protocol on how to communicate with other routers
2^n
Match on all routers or it will not work
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.

10. What address is FE80:/10
Supports both unequal metric load balancing and equal metric balancing.
A trunk
A layer 3 switch or router
Private: link local

11. What two parameters does EIGRP use to determine the best route?
Advertised Distance & Feasible distance
Autonomous System
The Root bridge is the bridge with the lowest bridge ID
Distance Vector

12. In Link state terminology - What is a link?
Advertised Distance & Feasible distance
Checks the source and destination address then permits or denies specific protocols
A link is an interface on a router
The inverse of a subnet mask.

13. How does an outbound ACL work?
Determines the cost which is the bandwidth
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Routes First/ Tests second
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available

14. How does inbound ACL work?
Test Firsts/ Routes Second
Dijkstra's Algorithm
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Autonomous System

15. What does EIGRP use to calculate it's metric?
A permit statement
0
Bandwidth & Delay
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.

16. How long is the dead interval
Private: link local
Match on all routers or it will not work
Advertised Distance & Feasible distance
4 times the hello interval

17. What algorithm does EIGRP use?
MD5 and you have to enable it if you want to use it.
Null
Aka Subnet mask
The Diffusing Update Algorithm (DUAL)

18. Max_age time for BPDU's

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

20. In regards to ACL's What are the three protocols?
One ACL per protocol - One ACL per direction - Once ACL per interface
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Multicast

21. Problem with static routes
A combination of Link-state and distance vector
A layer 3 switch or router
Adjacency
Not scalable - hard to maintain as the network grows

22. Problem with RIP
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Susceptible to routing loops
Every 5 seconds

23. How does an Extended ACL work?
Checks the source and destination address then permits or denies specific protocols
View
4
30-50 seconds

24. What two classless protocols act classful by default?
RIPv2 & EIGRP
The update only includes info about the route change
Determines the cost which is the bandwidth
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration

25. Dynamic VLAN is what?
90
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
MAC based
Automatically

26. Purpose of a Routing Protocol?
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
1Gb/s
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
20 seconds: 10 missed BPDU's

27. Example of a Routed Protocol?
IP
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Six equal cost paths
If int status is UP/UP..Check to make sure OSPF is enabled on the interface

28. What does the DR do?
120
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Updates all DROTHER Routers when a change occurs
Automatically

29. What does the back bone router do?
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Connects the different areas
A combination of Link-state and distance vector
Every 10 Seconds

30. What is the spilt horizon rule?
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
It is never useful to send information about a route back in the direction from which the original info came.
Packets are processed before they are routed to an outbound interface.
16

31. With OSPF - what must be defined?
A backbone area...Also known as Area 0
Anycast
RIPv2 and EIGRP
224.0.0.5

32. An autonomous system could also be referred to as what?
Link-State
Bandwidth & Delay
Domain
A protocol on how to communicate with other routers

33. A router running EIGRP will store what?
Susceptible to routing loops
All backup routes for destinations.
To select the best path to the destination
Null

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

35. Routing protocol is what?
Every 30 minutes by default
Propagation of partial updates that are sent only to those routers that the changes affect.
A protocol on how to communicate with other routers
The Root bridge is the bridge with the lowest bridge ID

36. Spanning-Tree cost of 100
Null
10Mb/s
Every 10 Seconds
Different Autonomous Systems

37. How does the SPF determine the shortest path?
Aka Subnet mask
Determines the cost which is the bandwidth
Disable auto summarization
For line vty 0 4

38. How often are BPDU's sent?
...
A backbone area...Also known as Area 0
Ever 2 seconds
Maximizing address efficiency - organization - summarization

39. Admin distance of a Static Route?
Not scalable - hard to maintain as the network grows
1
Between areas?
A trunk

40. What do area's do?
Reduce the link-state database and routing table
RIPv2 and EIGRP
Private: link local
It combines the advantages of Link-State and Distance vector routing protocols.

41. 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.
Unspecified
Individual or group IP's
Because a loopback interface is always active and cannot be in a down state like a real interface can.

42. Benefits of OSPF?
224.0.0.5
Associating the network address with a local DLCI.
10Mb/s
Scalable and fast convergence

43. What is the Wildcard mask
Propagation of partial updates that are sent only to those routers that the changes affect.
1.) Enter the Routing Manually 2.) Use Dymamic Routing
The inverse of a subnet mask.
A backbone area...Also known as Area 0

44. Normal time for STP convergence
MAC based
Susceptible to routing loops
Adjacency
30-50 seconds

45. Formula for determining hosts
IETF
Adjacency
2^n-2
15.....16 hops and the interface is down

46. What two things need to be done to enable dynamic routing?
Select the routing protocol - then specify the network.
Anycast
Domain
A backbone area...Also known as Area 0

47. Break down the word Link-State

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

48. What are subinterfaces?
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Susceptible to routing loops
Multiple virtual interfaces that are associated with one physical interface
Checks the source and destination address then permits or denies specific protocols

49. With ACL's where does the router extract information
Packet Header
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Select the routing protocol - then specify the network.
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication

50. What is an Autonomous System?
Carry's traffic for multiple VLANS
Plaintext and MD5
Because a loopback interface is always active and cannot be in a down state like a real interface can.
...