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. Summarization of network information usually occurs where?
Between areas?
To select the best path to the destination
Propagation of partial updates that are sent only to those routers that the changes affect.
Every 30 minutes by default

2. Nonbackbone - internal routers are aware of what topology
Updates all DROTHER Routers when a change occurs
Only topology within their respective area.
Every 10 seconds
Link-State

3. How long is the dead interval
Only with Cisco IOS software release 12.3 (2) T
A trunk
4
4 times the hello interval

4. What are two OSPF authentication methods?
100Mb/s
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Plaintext and MD5
Ever 2 seconds

5. What is one to many?
Only topology within their respective area.
30-50 seconds
Multicast
2^n-2

6. What is the Wildcard mask
It combines the advantages of Link-State and Distance vector routing protocols.
The inverse of a subnet mask.
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Between areas?

7. How often are LMI's sent out?
Every 10 Seconds
90
Forces protocols to behave as if they were classless
Maximizing address efficiency - organization - summarization

8. How is the root bridge determined?
The Root bridge is the bridge with the lowest bridge ID
MAC based
DROTHER
EIGRP - OSPF - RIP

9. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
Dijkstra's Algorithm
TRUE
Null
The Root bridge is the bridge with the lowest bridge ID

10. In Link state terminology - What is a link?
A link is an interface on a router
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Layers 1 & 2
The inverse of a subnet mask.

11. Example of a Routed Protocol?
Layers 1 & 2
IP
16
30-50 seconds

12. What does DLCI stand for?
Data Link Connection Identifier
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Aka Subnet mask

13. What type of algorithm does RIP use?
Convergence
2^n
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Distance Vector

14. What is the spilt horizon rule?
Every 10 seconds
One ACL per protocol - One ACL per direction - Once ACL per interface
It is never useful to send information about a route back in the direction from which the original info came.
A permit statement

15. In regards to troubleshooting OSPF what should you check?
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
90
A combination of Link-state and distance vector
Designated Router (DR) and a Back-up designated Router (BDR)

16. What does EIGRP use to calculate it's metric?
Packets are processed before they are routed to an outbound interface.
Different Autonomous Systems
Bandwidth & Delay
Every 10 seconds

17. Routing protocol is what?
EIGRP - OSPF - RIP
Convergence
Select the routing protocol - then specify the network.
A protocol on how to communicate with other routers

18. What is an Autonomous System?
120
MAC based
...
Scalable and fast convergence

19. The advantages of VLSM
Maximizing address efficiency - organization - summarization
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.
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Area Border Router

20. What type of authentication does EIGRP use?
Between areas?
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
MD5 and you have to enable it if you want to use it.
Forces protocols to behave as if they were classless

21. What is one to nearest
Anycast
A backbone area...Also known as Area 0
Select the routing protocol - then specify the network.
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.

22. What does the back bone router do?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Maximizing address efficiency - organization - summarization
Connects the different areas
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication

23. Can you delete individual entries in a specific ACL?
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Checks the source and destination address then permits or denies specific protocols
120
Only with Cisco IOS software release 12.3 (2) T

24. Advance Distance Vector or Hybrid uses what?
Advertised Distance & Feasible distance
1
To select the best path to the destination
A combination of Link-state and distance vector

25. What is passing VLAN traffic to another called?
Inter-VLAN routing
Six equal cost paths
EIGRP - OSPF - RIP
Packet Header

26. How does an outbound ACL work?
Every 30 minutes by default
Every 10 seconds
Routes First/ Tests second
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.

27. How does inbound ACL work?
By DLCI's
Test Firsts/ Routes Second
IP
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0

28. Why is it important to have a loopback address when using OSPF?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Inter-VLAN routing
Because a loopback interface is always active and cannot be in a down state like a real interface can.
The inverse of a subnet mask.

29. Admin distance of OSPF?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
All backup routes for destinations.
0
110

30. Dynamic VLAN is what?
MAC based
A combination of Link-state and distance vector
Only with Cisco IOS software release 12.3 (2) T
Updates all DROTHER Routers when a change occurs

31. How are Frame Relay Circuits identified?

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

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

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

33. What Layer does Frame Relay operate at?
1.) Enter the Routing Manually 2.) Use Dymamic Routing
2^n-2
Layers 1 & 2
Match on all routers or it will not work

34. What does a trunk do?

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

35. 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

36. Every ACL will need what?
Telnet connectivity - authentication and extended ACLs
A permit statement
Cisco - ANSI - Q.933A
Routes First/ Tests second

37. How do you configure a sub interface?
Associating the network address with a local DLCI.
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
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
Checks the source address and then permits or denies the entire protocol suite

38. The AS number must what?
10Mb/s
Match on all routers or it will not work
Advertised Distance & Feasible distance
The Root bridge is the bridge with the lowest bridge ID

39. What does this mean? R 192.168.1.0/24 [120/2] via 10.1.1.2
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Supports both unequal metric load balancing and equal metric balancing.
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.
Every 30 minutes by default

40. What are two statements that are true of IPv6 address representation?
To reduce OSPF traffic
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
20 seconds: 10 missed BPDU's

41. How often are BPDU's sent?
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
TRUE
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Ever 2 seconds

42. Admin distance of RIPv2
Make sure you are in interface mode - then use this command ip access-group 1 out/in
120
Routes First/ Tests second
Individual or group IP's

43. How does the SPF determine the shortest path?
Disable auto summarization
It is the signaling standard that maintains connection and statues between the DCE and DTE
Every 30 Seconds
Determines the cost which is the bandwidth

44. What does partial refer to?
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Packet Header
The update only includes info about the route change
Test Firsts/ Routes Second

45. What do you need to do if there are discontigous networks with EIGRP?
Scalable and fast convergence
Port based
Supports both unequal metric load balancing and equal metric balancing.
Disable auto summarization

46. Routers are used for what?
Bandwidth & Delay
2^n
10Mb/s
To select the best path to the destination

47. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
Test Firsts/ Routes Second
TRUE
View
The lower MAC address

48. OSPF routes packets within a single?
View
Advance Distance Vector
A layer 3 switch or router
Autonomous System

49. What is needed to pass traffic from one VLAN to another?
DROTHER
A layer 3 switch or router
Designated Router (DR) and a Back-up designated Router (BDR)
It is the signaling standard that maintains connection and statues between the DCE and DTE

50. What is OSPF multicast address?
224.0.0.5
Autonomous System
0
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available